WO2004067109A2 - Apparatuses, methods and systems relating to findable golf balls - Google Patents
Apparatuses, methods and systems relating to findable golf balls Download PDFInfo
- Publication number
- WO2004067109A2 WO2004067109A2 PCT/US2004/001126 US2004001126W WO2004067109A2 WO 2004067109 A2 WO2004067109 A2 WO 2004067109A2 US 2004001126 W US2004001126 W US 2004001126W WO 2004067109 A2 WO2004067109 A2 WO 2004067109A2
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- WO
- WIPO (PCT)
- Prior art keywords
- tag
- golf ball
- golf
- antenna
- diode
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B43/00—Balls with special arrangements
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
- A63B24/0021—Tracking a path or terminating locations
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
- A63B24/0021—Tracking a path or terminating locations
- A63B2024/0053—Tracking a path or terminating locations for locating an object, e.g. a lost ball
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
- A63B2225/50—Wireless data transmission, e.g. by radio transmitters or telemetry
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
- A63B37/005—Cores
- A63B37/0051—Materials other than polybutadienes; Constructional details
- A63B37/0055—Materials other than polybutadienes; Constructional details with non-spherical insert(s)
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
- A63B37/005—Cores
- A63B37/006—Physical properties
- A63B37/0064—Diameter
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
- A63B37/007—Characteristics of the ball as a whole
- A63B37/0077—Physical properties
- A63B37/0088—Frequency
Definitions
- the inventions relate to sports, such as golf, and more particularly to golf balls, methods for making golf balls and systems for use with golf balls.
- a shell surrounds the foil reflectors and the core.
- Each of the reflectors consist of a two part foil antenna with a diode connected on the inner ends.
- the diode causes a reflected signal to be double the frequency of a received signal.
- a 5 watt transmitter which is used to beam a signal toward the reflectors, is used to find the ball. The ball is found when a reflected signal is generated by the foil antenna and diode and reflected back toward a receiver.
- the arrangement of the reflectors and diodes on the ball in this German patent causes the ball to have poor durability and also makes the ball difficult and expensive to manufacture. The impact of a club head hitting such a ball will rapidly cause the ball to rupture due to the interruption of the shell/core interface by the foil reflectors.
- This golf ball includes an active Radio Frequency Identification Device (RFID) which identifies a particular ball.
- RFID includes an active (e.g., contains transistors) ASIC chip which is energized from the received radio signal.
- the RFID device is mounted in a sealed capsule which is placed within the core of the ball.
- the RFID device is designed to be used only at short range (e.g., less than about 10 feet). The use of a sealed capsule to hold the RFID within the ball increases the expense of making this ball.
- a golf ball in one exemplary embodiment of an aspect of the invention, includes a shell, a core material which is encased in the shell, and a tag which is disposed in the core material and which has at least one perforation.
- the tag includes a diode which is coupled to an antenna.
- the at least one perforation is a void or opening within the outer perimeter of the tag.
- a golf ball in one exemplary embodiment of another aspect of the invention, includes a shell and a core material which is encased in the shell and a tag which is disposed within the core material and which is detectable with a handheld transmitting/receiving device over a range of at least about 20 feet (separating the tag and the handheld transmitting/receiving device).
- the golf ball has high durability (e.g., most such balls can normally survive at least 20 cannon hits using standard testing methodology used by the golf industry) and substantially complies with golf ball specifications of the U.S. Golf Association or the golf ball specifications of the Royal & Ancient Golf Club of St. Andrews.
- a system includes a golf ball, having a tag which includes an antenna and a diode, and a handheld transmitting/receiving device which is capable of detecting the tag over a range of at least 20 feet and which complies with regulations of the Federal Communications Commission.
- a method of making a golf ball includes forming a core precursor member having a first portion and a second portion; placing a tag between the first portion and the second portion, the tag having at least one perforation; placing the first and second portions, with the tag between the portions, into a mold stracture; molding the portions, containing the tag, wherein the molding causes material from one of the first and second portions to extrude into the at least one perforation to contact the other of the first and second portions.
- a core member, formed either directly from the molding process or through processes after the molding, is then encased in a shell.
- the first and second portions may be created separately through a molding process which creates each portion individually, or they may be created through a molding process which creates a slug which is then sliced substantially in half to form both portions.
- handheld transmitter/receivers which may be used to find golf balls containing at least one tag.
- These handheld transmitter/receivers are, in certain embodiments, designed to find golf balls at a range of at lease about 20 feet and are designed to substantially comply with governmental regulations regarding radio equipment such as Federal Communications Commission (FCC) regulations. For example, these certain embodiments are designed to transmit less than, or equal to, about 1 watt maximum peak power or about 4 watts effective isotropic radiated power.
- FCC Federal Communications Commission
- these certain embodiments are designed to transmit less than, or equal to, about 1 watt maximum peak power or about 4 watts effective isotropic radiated power.
- a tag which includes two diodes which are coupled in parallel between two antenna portions. This tag, in one embodiment, is placed within the core material of a golf ball. This double diode tag may be used as an alternative to the various tags shown herein by substituting the double diode arrangement for the single diode shown in the various tags herein.
- tags which have antenna portions in more than one plane. These tags may be considered to be three-dimensional tags, such as several different disclosed embodiments of spiral tags or tags which are initially a planar stracture but are then bent or formed into a non-planar stracture.
- Figure 1 A shows a system for finding a golf ball according to one embodiment of the present invention.
- Figure IB is a side view of an exemplary embodiment of a handheld transmitter/receiver which may be used with embodiments of the present invention.
- Figure 1C is a perspective view of a handheld transmitter/receiver of Figure IB.
- Figure 2A is an electrical schematic which illustrates an embodiment of a circuit for a tag according to one aspect of the invention.
- Figure 2B shows a stractural representation of the circuit of
- Figures 2C and 2D are electrical schematics which show other exemplary embodiments of a circuit for a tag according to one aspect of the invention.
- Figure 3A is a cross-sectional view of a golf ball which is one embodiment of the present invention.
- Figure 3B is a cross-sectional view of the same golf ball shown in
- Figure 3A shows a magnified view of a portion of the golf ball shown in Figure 3B.
- Figure 3D shows another cross-sectional view of the golf ball of
- Figure 3 A shows various dimensions for one particular embodiment.
- Figure 3E shows a cross-sectional view, taken in a plane which is pe ⁇ endicular to the plane of the tag shown in Figure 3A.
- Figure 4A shows a cross-sectional view of another embodiment of a golf ball with a tag according to the present invention.
- Figure 4B shows the golf ball of Figure 4A at a different cross- sectional view.
- Figure 4C shows a magnified view of a portion of the golf ball shown in Figure 4B.
- Figure 4D shows the same cross-sectional view as Figure 4A with specific measurements for a particular embodiment of a golf ball according to the present invention.
- Figure 5 A shows a cross-sectional view of another embodiment of a golf ball of the invention.
- Figure 5B shows a cross-sectional view of another embodiment of a golf ball of the invention.
- Figure 5C shows a cross-sectional view of another embodiment of a golf ball of the invention.
- Figure 5D shows a cross-sectional view of another embodiment of a golf ball of the invention.
- Figure 5E shows a cross-sectional view of another embodiment of a golf ball of the invention.
- Figure 5F shows a cross-sectional view of another embodiment of a golf ball of the invention.
- Figure 5G shows a cross-sectional view of another embodiment of a golf ball of the invention.
- Figure 5H shows a cross-sectional view of another embodiment of a golf ball of the invention.
- Figure 51 shows a cross-sectional view of another embodiment of a golf ball of the invention.
- Figure 5J shows a cross-sectional view of another embodiment of a golf ball of the invention.
- Figure 5K shows a cross-sectional view of another embodiment of a golf ball of the invention.
- Figure 5L shows a cross-sectional view of another embodiment of a golf ball of the invention.
- Figure 5M shows a cross-sectional view of another embodiment of a golf ball of the invention.
- Figure 5N shows a plain view of a tag which may be used in a golf ball according to one embodiment of the invention.
- Figure 5O shows a plain view of another tag which may be used in a golf ball according to one embodiment of the invention.
- Figure 5P shows a plain view of another embodiment of a tag which may be used in a golf ball according to one embodiment of the present invention.
- Figures 6A, 6B, 6C, and 6D show diagrammatically one embodiment of a method for making a golf ball of the present invention.
- Figure 6E shows another embodiment of a method of making a golf ball.
- Figure 7 shows a flow chart of one exemplary process for making a golf ball of the present invention.
- Figure 8A shows a block diagram schematic of a handheld transmitter/receiver of one embodiment of the present invention.
- Figure 8B shows a block level schematic representation of an embodiment of a transmitter/receiver.
- Figure 8C shows a block level schematic of an embodiment of a handheld transmitter/receiver of the present invention.
- Figure 8D shows a block-level schematic of an embodiment of a handheld transmitter/receiver of the present invention.
- Figure 9A shows an exemplary embodiment of a tag having a spiral antenna.
- Figure 9B shows an exemplary embodiment of another tag having a spiral antenna.
- Figure 9C is an electrical schematic showing the circuit formed by a tag having a spiral antenna.
- Figures 9D, 9E and 9F show various examples of tags having spiral antennas which have been placed within a slug which is to be molded to form a golf ball core.
- Figure 9G shows another exemplary embodiment of a tag having a spiral antenna.
- Figure 9H shows another exemplary embodiment of a tag having a spiral antenna.
- Figure 10A shows an example in a top view of a three- dimensional tag having, in this case, a shape which resembles the letter "S.”
- Figure 10B shows an embodiment of a slug which has been cut or formed in order to receive the tag of Figure 10A.
- a view of Figure 10B is a top view showing the two portions of the slug.
- Figure 10C shows another example of a three-dimensional tag.
- a view of Figure 10C is a top view, which resembles a cross-sectional view.
- Figure 10D shows an example of a slug which is cut or formed to receive the tag of Figure IOC.
- a view of Figure 10D is a top view of the two portions of the slug.
- Figure 11 A shows a motorized golf cart having a cradle and a recharging mechanism for a handheld unit.
- Figure 1 IB shows an example of a pull cart having a cradle for a handheld unit of the present invention.
- Figure 12 shows an exemplary embodiment of one method of operating a golf course utilizing findable balls and handheld units of various embodiments of this invention.
- Figure 13 shows another exemplary method of making a golf ball having a tag.
- FIG. 1 A shows an example of the system which uses a handheld transmitter/receiver to find a findable golf ball.
- a person 18 such as a golfer, may carry a handheld transmitter/receiver which is designed to locate a findable golf ball 10 which includes a tag 12 embedded in the golf ball.
- the handheld transmitter/receiver 14 may operate as a radar system which emits an electromagnetic signal 16 which then can be reflected by the tag 12 back to the transmitter/receiver which can then receive the reflected signal in a receiver in the handheld unit 14.
- tags such as tag 12, are described further below for use in the golf ball 10. These tags typically include an antenna and a diode coupled to the antenna.
- the diode serves to double the frequency of the reflective signal (or to provide another harmonic of the received signal), which makes it easier for the receiver to detect and find a golf ball as opposed to another object which has reflected the emitted signal without modifying the frequency of the emitted signal.
- the tag within the golf ball 10 is typically positioned near the center of the ball and it is positioned such that the symmetry of the ball is maintained.
- the center of gravity (and symmetry) of a ball with a tag is substantially the same as a ball without a tag.
- the tag in certain embodiments is of such a weight and size so that the resulting ball containing the tag has the same weight and size as a ball which complies with the United States Golf Association specifications or the specifications of the Royal & Ancient Golf Club of St.
- a ball with a tag has the same performance characteristics (e.g. initial velocity) as balls which were approved for use by the United States Golf Association or the R&A.
- the tag may include a perforation or void or hole, often within the outer perimeter of the tag's antenna. This perforation or void or hole increases the durability of the ball, typically by allowing the two portions to mate through the perforation and/or by allowing the core rubber composition to flow through the perforation to give greater strength within the ball. Thus, the durability of the ball is significantly improved.
- the handheld unit 14 shown in Figure 1 A may have the form shown in Figures IB and lC.
- FIG. IB and 1C is one example of many possible forms for a handheld unit.
- This handheld device is typically a small device having a cylindrical handle which may be 4-5 inches long, and may have a diameter of approximately 1.5 inches.
- the cylindrical handle, such as handle 21, is attached to a six-sided solid which includes an antenna, such as the antenna casing 22 shown in Figures IB and 1C.
- Figure IB is a side view of a handheld transmitter/receiver which may be used in certain embodiments of the present invention.
- Figure 1C is a perspective view of a handheld unit shown in Figure IB.
- the handheld unit is preferably compliant with all regulations of the Federal Communications Commission and is battery powered.
- the batteries may be housed in the handle 21, and they may be conventional AA batteries which may be placed into the handle by a user or they may be rechargeable batteries which can be recharged either through the use of an AC wall/house socket or a portable rechargeable unit (e.g. in a golf cart).
- the handheld may emit pulsed (or non-pulsed) radar with a power that is equal to or less than 1 watt.
- the handheld unit may emit through its transmitter pulsed radar signals up to 1 watt maximum peak power and up to 4 watts effective isotropic radiated power (EIRP).
- EIRP effective isotropic radiated power
- the handheld unit for locating golf balls may be sold to and used by the general public in the United States.
- Several embodiments of handheld transmitters/receivers are described further below. At least some of these embodiments may be sold to and used by the general public in countries other than the United States because the embodiments meet regulatory requirements of those countries.
- a handheld unit for use and sale in the European Union will normally be designed and manufactured to meet the CE marking requirements and the National Spectrum Authority requirements per the R&TTE (Radio and Telecommunications Terminal Equipment) Directive.
- R&TTE Radio and Telecommunications Terminal Equipment
- FIG. 2A shows an electrical schematic of a tag according to one embodiment.
- the circuit of the tag 50 includes an antenna having two portions 52 and 54.
- the portion 52 is coupled to one end of the diode 56, and the portion 54 is coupled to the other end of the diode 56.
- a transmission line 58 which includes an inductor is coupled in parallel across the diode 56 as shown in Figure 2A.
- the diode 56 is designed to double the received frequency so that the reflected signal from the tag is twice (or some harmonic) of the received signal. It will be appreciated that the double harmonic described herein is one particular embodiment, and alternative embodiments may use different harmonics or multiples of the received signal.
- Figure 2B shows a stractural representation of the circuit of Figure 2A.
- Figure 2B shows the antenna portions 52 and 54 coupled to their respective ends of the diode 56 which is in turn coupled in parallel to a transmission line 58.
- the diode 56 may be a diode from Metelics Co ⁇ oration, part number SMND-840, which is available in a package referred to as an SOD323 package.
- the circuits shown in Figures 2A and 2B may be implemented in structures that have various different shapes and configurations as will be apparent from the following description.
- FIGs 2C and 2D show two exemplary embodiments of a tag which uses two diodes which are coupled in parallel between the two antenna portions.
- Any of the various tags e.g. shown in Figures 3A-5P or 9A-9H or 10A or 10C
- FIGS 2C or 2D may use either of the circuits of Figures 2C or 2D rather than the single diode implementation of Figure 2A.
- tag 72 there is no inductor
- in the tag 80 there is an inductor which may be used to match the impedance of the diodes to the impedance of the antennas (antenna portions).
- the tag 72 shown in Figure 2C includes diodes 73 and 74 which are coupled together in parallel between antenna portions 75 and 76.
- the two diodes are in a parallel connection but with reversed cathode-anode (N-P) orientation.
- N-P cathode-anode
- This configuration will produce a stronger second harmonic response from the tag because of the resulting full wave implementation of the frequency doubling process.
- the tag and hence the ball containing the tag
- This double diode may be formed in a single integrated circuit at substantially the same cost as the single diode 56 shown in Figure 2A. It will be appreciated that in such an integrated circuit, the P portion of the diode 73 is coupled to the N portion of the diode 74, and the P portion of the diode 74 is coupled the N portion of the diode 73.
- the tag 80 shown in Figure 2D is similar to the tag 72 except that an inductor 87 is included in this tag's circuit.
- the inductor 87 is coupled in parallel with the two diodes 83 and 84, which are coupled in reverse cathode- anode orientation as in the case shown in Figure 2C.
- the two diodes and the inductor are coupled in series between the antenna portions 85 and 86 as shown in Figure 2D.
- the inductor 87 is an optional feature which may be used to match the impedance of the diodes to the impedance of the antenna portions 85 and 86.
- Figure 3A shows a cross-sectional view taken through the center of a golf ball of one embodiment of the invention.
- the cross-sectional view is in the plane of the tag which in this embodiment is a planar stracture formed primarily by two antenna portions 106A and 106B.
- An end view of the tag in Figure 3B clearly shows the substantially planar stracture of the tag.
- the cross- section of Figure 3B is taken along the line 3B— 3B as shown Figure 3 A.
- Figure 3C shows a magnified view of a portion of the tag within the bubble 120 shown in Figure 3D. It will be appreciated that the bubble 120 is not a structural feature of the tag or the ball 100, but rather, is merely shown for pu ⁇ oses of illustration so that the portion being magnified can be easily recognized.
- FIG 3D shows the same view of a golf ball 100 as Figure 3 A except that Figure 3D includes various exemplary dimensions for the tag and ball shown in Figure 3D.
- the golf ball 100 shown in Figure 3A includes a shell 102 and a core which is formed from core material 104.
- the shell 102 is sometimes referred to as an outer cover shell.
- the tag includes an antenna 106, having antenna portions 106 A and 106B, and a diode 110, and a transmission line 112.
- the outer perimeter 103 of the tag substantially conforms with the outer diameter of the core formed from the core material 104.
- the antenna 106 which includes antenna portions 106A and 106B is electrically coupled to the diode 110 through a conductive adhesive 114A and 114B (shown in Figure 3C).
- the conductive adhesive is solder.
- the conductive adhesive is a resilient conductive epoxy which includes metallic powder which is conductive and which is mixed with the epoxy.
- resilient conductive adhesives include conductive adhesives from Tecknit (see www.tecknit.com) and an adhesive such as adhesive 2111 from Bondline Electronic Adhesives, Inc. The use of a compressible, and resilient conductive adhesive will improve the chances of the connection between the diode and the antenna surviving many shocks due to the golf club head hitting the golf ball.
- the transmission line 110 is coupled between the two antenna portions 106A and 106B as shown in Figure 3A.
- the transmission line 112 corresponds to the transmission line 58 of Figure 2B
- the antenna portion 106 A corresponds to the antenna portion 52
- the antenna portion 106B corresponds to the antenna portion 54
- the diode 56 of Figure 2B corresponds to the diode 110 of Figure 3A.
- the tag in the ball 100 of Figure 3 A includes several perforations or openings which exist from one side of the tag through and to the other side of the tag. These perforations include the void or perforation 108 which is within the central portion of the tag, and the perforations 109 A and 109B and 109C which are on the antenna portions 106 A and 106B as shown in Figure 3A.
- FIG. 3A shows a cross-sectional view of the ball 100 taken around the region of the perforation 109 A, where the cross- sectional view is pe ⁇ endicular to the plane of the antenna portion 106A.
- the antenna portion 106A includes perforation 109A.
- the core material 104 is extruded through the perforation 109 A forming a unitary stracture on both sides of the perforation and through the perforation as shown in Figure 3E.
- a similar effect occurs at all of the other perforations, such as the perforation 108 which is centrally located within the outer perimeter 103 of the tag.
- Figure 3D shows various exemplary dimensions for a tag and ball, such as the golf ball 100.
- the exterior or outside ball diameter is about 1.68 inches.
- the inside diameter of the shell 102, which coincides with the outside diameter of the core is about 1.5 inches.
- the approximate diameter of the outer perimeter 103 of the tag is about 1.36 inches.
- the approximate diameter of the centrally located perforation 108 is approximately 0.76 inches.
- the approximate diameter of each of the eight perforations on the antenna portions 106A and 106B is approximately 0.125 inches in diameter. These eight perforations in the two antenna portions 106A and 106B are located substantially on a circle which has a diameter of 1.06 inches.
- the angular separation between these eight perforations is approximately 33°, while the angular separation between the end perforations and the centerline 100A is about 40°.
- the distance from the centerline 100B, which horizontally intersects the center of the ball 100, to the top of the antenna shown in Figure 3D, is about 0.533 inches.
- the typical top to bottom length of the antenna 106 in the view shown in Figure 3D is about 1.066 inches.
- the following dimensions are with respect to the "U" shaped transmission line 112 which is centrally located within the perforation 108 as shown in Figures 3A and 3D.
- This "U" shaped transmission line is formed from the same copper material as the antenna portions 106A and 106B.
- the antenna 106 and the transmission line 112 are formed from a unitary piece of copper which is etched to have the shape shown in Figures 3A and 3D, and then the diode 110 is attached through a conductive adhesive as shown in Figure 3C.
- the width of the transmission line 112 is about 0.06 inches.
- the "U" shaped transmission line 112 extends from the centerline 100B up towards the top of the ball shown in Figure 3D by approximately 0.136 inches. There is a perforation or void between the inside edges of the "U” shaped transmission line. The size of this void from one side of the inside edge of the "U” shaped transmission line to the other side of the inside edge of the transmission line is approximately 0.06 inches. The gap from the centerline 100A to an inside edge of the "U" shaped transmission line is about 0.03 inches. [0079] It is often desirable to mount an antenna in a tag, such as antenna
- the tag is mounted on a dielectric (insulating) substrate, which in this case is a layer of an insulator known as Kapton, which is approximately 0.005 inches thick.
- Kapton an insulator known as Kapton
- the Kapton layers 118 and 119 shown in Figure 3C leave open the void created by the "U" shaped transmission line.
- there is no copper (e.g., antenna) there is no Kapton such that the Kapton does not exist in the perforation 108, and does not exist in the perforations in the antenna portions, such as perforations 109A, 109B, and 109C.
- the perforations exist from one side of the tag to the other side of the tag thereby allowing the core material 104 to extrude through the perforations to form a unitary stracture of core material from one side of the tag through and to the other side of the tag.
- the Kapton may be allowed to exist in certain places where there is no copper (antenna), such as in the void of the copper of the "U" shaped transmission line. In this case, there is no perforation in the Kapton and no perforation in the tag which allows for the extrusion of core material through the perforation in the molding process.
- the ball 100 shown in Figures 3 A, 3B and 3D may be constructed in a manner such that complies with the specifications for a golf ball of the U.S. Golf Association or the R&A.
- the weight of the golf ball without the tag will be approximately 45.50 grams but not exceeding 45.927 grams (total ball and tag weight), and the weight of the tag (all components) may be about 0.359 grams, which results from the combination of the weight of the Kapton dielectric, the copper antenna, the diode, and the conductive adhesive, each of which respectively are 0.157 grams, 0.182 grams, 0.004 grams, and 0.0156 grams.
- the size and shape of the golf ball as shown in Figure 3 A is within the specifications for a golf ball of the U.S.G.A. (United States Golf Association) or the R&A and thus, the weight and size of such a golf ball complies with the specifications of the U.S.G.A. or the R&A. Furthermore, it has been determined that a golf ball with a tag such as that shown in Figure 3 A has sufficiently high durability to comply with the durability characteristics of golf balls normally approved by the U.S.G.A. or the R&A for tournament play. For example, a golf ball of the form shown in Figure 3 A will normally survive many cannon hits, which is the conventional way of testing the durability of golf balls.
- Figures 4A, 4B, 4C, and 4D show an alternative embodiment of a golf ball according to the present invention.
- the golf ball 130 shown in Figures 4A, 4B, 4C, and 4D is very similar to the golf ball 100 shown in Figures 3A, 3B, 3C, 3D, and 3E.
- the golf ball 130 has substantially the same specifications as the golf ball 100, as shown by the measurements of Figure 4D and the measurements of Figure 3D.
- the tag of the golf ball 30 includes a diode 110 and an antenna 132 which is similarly shaped to the antenna 106 of Figure 3 A.
- a transmission line 134 is similarly shaped to transmission line 112 of Figure 3A.
- a shell 102 having an outside diameter of about 1.68 inches surrounds the core material 104 which has an outside diameter (corresponding to the inside diameter of the shell 102) of about 1.5 inches.
- a tag having an antenna 132 formed by antenna portions 132A and 132B, is coupled to the diode 110 and to the transmission line 134.
- a perforation 136 is located within the outer perimeter of the antenna 132 and serves a similar pu ⁇ ose as the perforation 108 of Figure 3A.
- the antenna portions 132A and 132B do not include perforations (unlike the antenna portions 106A and 106B of Figure 3A which do include perforations, such as perforations 109A and 109B).
- FIG. 4A is a cross-sectional view of the plane of the tag; this view shows that there are no perforations in the antenna portions 132A and 132B, unlike the perforations in the antenna portions 106A and 106B of Figure 3A.
- the view shown in Figure 4B is similar to the view shown in Figure 3B.
- This view may be considered to be an end view which is parallel with the plane of the tag and which shows how a diametric axis which passes through the center of the golf ball is substantially aligned with a diametric axis of the tag formed primarily by the antenna 132.
- the bubble 142 is shown for illustrative pmposes in Figures 4B and 4C, and is understood to be not required to be a part of the physical structure of the golf ball, but is used rather for pu ⁇ oses of illustration.
- Figure 4C shows a magnified view of a portion within the bubble 142. This magnified view shows that the diode 110 is coupled by a conductive adhesive 138 A and 138B to their respective antenna portions 132A and 132B.
- the conductive adhesive 138 A and 138B may be similar to the conductive adhesive 114A described above.
- the antenna portions 132 A and 132B may be a copper conductor which has a thickness of approximately 0.0014 inches thick.
- the Kapton does not exist in the perforation area 136, and thus this perforation area allows for the two portions of a core precursor which is placed within a mold to bind through the perforation 136 to perform a unitary stracture, such as the stracture shown in Figure 3E, wherein the structure extends through the perforation as shown in Figure 3E.
- the perforation 136 is contained within the outer perimeter 133 which substantially conforms with the outer diameter of the core member as shown in Figure 4D.
- FIGS 5A through 5P show various golf ball components which include tags having various shapes and configurations which are alternative embodiments of the present invention. At least some of these embodiments share certain characteristics which will now be described before describing each of these particular embodiments in Figures 5A through 5P.
- the tag structure is substantially planar and symmetrical about a diametric axis which passes through the center of a golf ball.
- the tag structure is substantially in one plane which intersects (substantially) the center of the golf ball and has an outer perimeter which conforms to the inner contour (diameter) of the shell, which itself conforms to the outer diameter of the core in the case of the two-piece golf ball.
- the diode in certain embodiments is typically coupled to the antenna along the diametric axis. There is an internal void or perforation around a transmission line within certain embodiments of the tag. As can be seen from the various embodiments, the diode will be positioned either substantially at the center of the golf ball or substantially off-center. The diode in some embodiments is substantially near the center of the ball (e.g. Figures 5C and 5E) and in other embodiments it is not (e.g. Figures 3A and 4A).
- At least two types of transmission lines are shown having two distinct shapes; one case involves a "U” shaped portion which is bisected by the diametric axis of the golf ball, and another type of transmission line includes the "T" shaped transmission line which is also bisected by the diametric axis of the golf ball. Due to the perforations which exist in the tag, the surface area of the plane of the tag is less than the surface area of a cross-section through the center of the ball. Many of the embodiments described herein include an antenna which has a first wing and a second wing which is bisected by the diametric axis through the center of the golf ball. The first wing and the second wing are symmetrical and have at least one perforation which separates the first and second wings.
- a transmission line which is coupled to the first and second wings is substantially bisected by the diametric axis. At least a portion of the outer perimeter of the first and second wings substantially conforms to the outer diameter of the core material of the golf ball.
- the golf ball component 200 shown in Figure 5A shows a tag within a core 204 which then can be encased in the shell to form a golf ball.
- the tag includes a diode 201 which is contained within the core material 206.
- the tag is wholly contained within the outer perimeter of the core 204.
- the tag includes, in addition to the diode 201, a transmission line 210, and an antenna having antenna portions 208 and 209, which are coupled to the diode 201, and which are coupled to the transmission line 210 as shown in Figure 5A.
- a central perforation which is within the outer perimeter 203 of the tag, is surrounded by the antenna portions 208 and 209.
- Various exemplary dimensions are shown in Figure 5A. While the tag of Figure 5 A has a transmission line of the same width as the transmission line of Figure 3A, and while the diameter of the outer perimeter of the antenna of Figure 5 A is similar to the diameter of the outer perimeter of the antenna of Figure 3A, the antenna is longer from top to bottom in Figure 5A's embodiment than the embodiment of Figure 3A.
- Figure 5B is another embodiment of a tag in a golf ball or golf ball core.
- the tag and core combination 220 includes an antenna having antenna portions 228 and 229 and a diode 221 which is coupled to the antenna portions 228 and 229.
- a perforation 222 centrally located within the outer perimeter 223 of the tag is also part of the tag's stracture.
- the outer perimeter 224 of the core material completely surrounds the outer perimeter 223 of the tag. It can be seen that the outer perimeter 223 substantially conforms to the outer perimeter 224 of the core material.
- the embodiment shown in Figure 5B does not include a transmission line.
- the view shown in Figure 5B is a cross-sectional view taken at a plane which intersects the center of the core, wherein the plane which shows the view is parallel with the plane of the antenna having antenna portions 228 and 229.
- the position of the tag shown in Figure 5B is similar to the position of the tag shown in Figure 3 A.
- Figure 5C shows another embodiment of a tag in a golf ball core.
- the core and tag combination 240 includes a diode 241 and antenna portions 248 and 249 which are connected to the diode 241.
- a perforation 242 extends along the diametric vertical axis as shown in Figure 5C. This perforation is also within the outer perimeter 243 of the tag. There are also "V shaped perforations between the spokes of the antenna portions 248 and 249.
- Figure 5C shows a cross-sectional view of the tag within the core, and thus the view of Figure 5C is the same as the view shown in Figure 3A.
- Figure 5D shows another embodiment of the tag and core combination 260 which includes a diode 261 which is coupled to the antenna portions 268 and 269. These antenna portions surround the perforation 262, which is similar to the perforation 108 shown in Figure 3 A.
- the perforation allows for the core material 266 to extend through the perforation during the molding process described below.
- the outer perimeter 264 of the core material completely surrounds the tag shown in Figure 5D.
- Figure 5E shows another embodiment of a golf ball 280 which includes a tag.
- the golf ball shown in Figure 5E is a two-piece ball having a shell 285 which surrounds the outer perimeter 284 of the core material 286.
- the tag includes a diode 281 which is coupled between the two antenna portions 288 and 289.
- a transmission line 290 is also coupled between the two antenna portions 288 and 289.
- the tag includes at least one perforation 282 which is contained within the outer perimeter 283 of the tag.
- the view of Figure 5E is a cross-sectional view wherein the plane of the view is parallel with the plane of the tag such that the view of Figure 5E is similar to the view in Figure 3 A.
- the tag as shown in Figure 5E is symmetrical about the centerline which coincides with a diametric axis of the golf ball which diametric axis intersects with the center of the golf ball. It can be seen from Figure 5E that most of the outer perimeter 283 of the tag conforms substantially to the outer perimeter 284 of the core material 286.
- the tag shown in Figure 5E is substantially planar and symmetric about the diametric axis which intersects the center of the golf ball.
- the "T" shaped transmission line 290 is bisected by this diametric axis. It can also be seen from Figure 5E that the surface area of the plane of the tag is less than the cross-sectional area of a plane through the center of the ball.
- the perforation 282 allows for the core material 286 to be extruded through the perforations as a result of the molding process to produce a result which is similar to that shown in Figure 3E.
- Figure 5F shows another embodiment of a golf ball 300 which is a two-piece golf ball including a shell 305 which surrounds the outer perimeter 304 of the core material 306.
- a tag is contained within the core material 306, and this tag includes a diode 301 which is coupled between antenna portions 308 and 309.
- the antenna portions 308 and 309 are coupled to a transmission line 310.
- the view of Figure 5F is similar to the view shown in Figure 3 A, and is a cross-sectional view taken through the center of the golf ball.
- a perforation 302 exists between the two antenna portions and within the outer perimeter 303. Additionally, there are "V shaped perforations between the spokes of the antenna portions.
- the dimensions shown in Figure 5F, as well as all the other figures are in inches (except for of course the angular dimensions which are in degrees).
- FIG 5G shows another embodiment of a tag in a golf ball according to the present invention.
- the golf ball 320 is a two-piece golf ball which includes a shell 325 which surrounds the outer perimeter 324 of the core material 326. This golf ball may be formed in accordance with the method described below and shown in Figure 7 and Figures 6 A through 6D.
- the tag includes a diode 321 which is coupled between antenna portions 328 and 329. These antenna portions are coupled to a transmission line 330, and these antenna portions surround a perforation 322 which is similar to the perforation 136 shown in Figure 4A and the perforation 108 shown in Figure 3A. The perforation 322 is within the outer perimeter 323 of the tag.
- the view of Figure 5G is a cross-sectional view taken through the center of the golf ball 320, and thus it is similar to cross-sectional view of Figure 3 A.
- the tag of Figure 5G is substantially a planar tag which is symmetrical about the diametric axis which intersects the center of the golf ball 320.
- the outer perimeter 323 of the tag substantially conforms to the inner surface of the shell 325 and conforms to the outer surface of the core material 326.
- the "T" shaped transmission line 330 is bisected by the diametric axis, and the diode 321 is located near the center of the golf ball.
- the antenna portions 328 and 329 resemble first and second wings which are bisected by the diametric axis and which are symmetrical about this diametric axis.
- the perforation 322 separates the first and second wings.
- the perforation 322 allows for the core material 326 to be extruded through the perforation during the molding process described below to yield a result which is similar to that shown in Figure 3E.
- FIG. 5H is a cross-sectional view taken through the center of the golf ball 340 shown in Figure 5H.
- the golf ball 340 is a two-piece golf ball which includes a shell 345 which surrounds the outer perimeter 344 of the core material 346.
- This golf ball 340 may be fabricated according to the process described below relative to Figures 6A through 6D and Figure 7.
- the golf ball 340 includes a tag having a diode 341 which is coupled between antenna portions 348 and 349.
- a transmission line 350 is coupled between antenna portions 348 and 349.
- the perforation 342 is contained within the outer perimeter 343 of the tag, and additional perforations which are "V" shaped exist between the spokes of the antenna portions 348 and 349.
- the various linear dimensions shown in Figure 5H indicate the sizes of the various components shown in Figure 5H and are in inches. It can be seen that the tag structure of Figure 5H is symmetrical about the diametric axis which intersects the center of the golf ball.
- the diode 341 is substantially near the center of the golf ball 340, and the tag structure is substantially planar.
- the ends of the spokes of the antenna portions form an outer perimeter 343 which substantially conforms to the outer surface 344 of the core material 346.
- the "T" shaped transmission line 350 is substantially bisected by the diametric axis which intersects the center of the golf ball 340.
- Figure 51 is a cross-sectional view where the plane of the cross-section is taken through the center of a golf ball 360.
- the golf ball 360 is a two-piece golf ball having a shell 365 which surrounds the outer surface or perimeter 364 of the core material 366.
- Contained within the core material 366 is a tag which includes a diode 361 which is coupled between antenna portions 368 and 369.
- An elongated transmission line 370 is coupled between the antenna portions 368 and 369.
- a perforation 362 exists between the antenna portions 368 and 369, an there are additional perforations which are "V shaped between the spokes of the antenna portions. The perforations are within the boundary established by the outer perimeter 363 which is formed effectively by the ends of the spokes of the antenna portions.
- FIG. 5J is a cross-sectional view, where the plane of the cross-section is taken through the center of the golf ball 380.
- the golf ball 380 is a two-piece ball having a shell 385 which surrounds an outer perimeter 384 of the core material 386.
- a tag which has antenna portions 388 and 389.
- the tag also includes a diode 381 which is coupled between the antenna portions 388 and 389, and further includes a transmission line 370 which is also coupled between the antenna portions 388 and 389.
- the perforation 382 exists between the two antenna portions 388 and 389, and this perforation is within the outer perimeter 383 of the tag as shown in Figure 5J.
- This outer perimeter 383 substantially conforms to the outer perimeter 384 of the core material 386.
- the golf ball 380 may be fabricated according to the method described below relative to Figures 6 A through 6D and Figure 7.
- FIG. 5K shows another exemplary embodiment of a golf ball according to the present invention.
- the golf ball 400 shown in Figure 5K is a two-piece golf ball which includes a shell 405 which surrounds the outer perimeter 404 of the core material 406.
- a tag which includes an antenna portion 408 and an antenna portion 409.
- the tag also includes a diode 401 which is coupled between the two antenna portions 408 and 409.
- a transmission line 410 is also coupled between the two antenna portions 408 and 409.
- a perforation 402 exists between the two antenna portions 408 and 409 and is contained within the outer perimeter 403 of the tag.
- the golf ball 400 will be fabricated according to one of the methods described below such that the core material 406 is extruded through the perforation 402 to produce a result which is similar to that shown in Figure 3E. It can be seen from Figure 5K that the tag is substantially symmetrical about a diametric axis which intersects the center of the golf ball 400.
- the tag is substantially planar and includes a "T" shaped transmission line which is also bisected by the diametric axis. In this embodiment, the diode 401 is located substantially at the center of the golf ball 400.
- FIG. 5L shows another exemplary embodiment of a golf ball of the present invention.
- the golf ball 420 shown in Figure 5L is a two-part golf ball including a shell 425 which surrounds an outer perimeter 424 of a core material 426.
- the core material 426 wholly contains a tag which includes a diode 421 and two antenna portions 248 and 249 and the transmission line 430.
- the diode 421 is coupled between the two antenna portions 428 and 429
- the transmission line 430 is coupled between the two antenna portions 428 and 429.
- the perforation 422 between the antenna portions separate the antenna portions and is similar to the perforation 108 of Figure 3 A.
- the transmission line 430 includes a perforation.
- the golf ball 420 may be fabricated according to one of the embodiments described below for a method of fabricating a golf ball.
- the tag of Figure 5L is a substantially planar tag which is symmetrical about the diametric axis of the golf ball, which diametric axis intersects the center of the golf ball 420.
- the T-shaped transmission line 430 is bisected by the diametric axis, and the tag structure is symmetrical about this diametric axis which coincides with the vertical center line shown in Figure 5L.
- Figure 5L is a cross- sectional view where the plane of the cross-section is taken through the center of the golf ball 420 and thus it resembles the view shown in Figure 3A.
- Figure 5M shows another exemplary embodiment of a golf ball according to the present invention.
- the golf ball 440 is a two-piece golf ball which includes a shell 445 which surrounds an outer perimeter 444 of the core material 446.
- the tag includes a diode 441 and antenna portions 448 and 449 as well as a transmission line 450.
- the diode 441 is coupled between the two antenna portions 448 and 449, and the transmission line 450 is coupled between these two antenna portions.
- At least one perforation 442 exists within the outer perimeter 443 of the tag, where the outer perimeter 443 is defined by the outer edge or perimeter of the antenna portions.
- the cross-sectional view of Figure 5M is in a plane which intersects the center of the golf ball, and the tag stracture is substantially planar and symmetrical about a diametric axis of the golf ball which intersects the center of the golf ball.
- the golf ball 440 shown in Figure 5M may be fabricated according to the methods described below such that the core material 446 is extraded through the perforations 442 during the molding process to yield a structure which is similar to that shown in Figure 3E.
- Figure 5N shows an exemplary embodiment of a tag of the present invention.
- the tag 460 includes antenna portions' 468 and 469 and a diode 461 which is coupled between these antenna portions.
- a transmission line 470 is coupled to the antenna portions 468 and 469, and this transmission line 470 surrounds the perforation 462, which perforation separates the transmission line from the antenna portions 468 and 469. There is also a separation between the antenna portions which may also be a perforation.
- the tag of Figure 5N may be made small enough in its rectangular shape so that it fits completely within the core material of a two-piece golf ball. Alternatively, portions of the antenna portions 468 and 469 may be trimmed away to allow this tag to fit within a golf ball core or within a one-piece golf ball.
- the tag shown in Figure 5N is a substantially planar tag which may be placed in a plane in the golf ball core which intersects with the center of the golf ball. In this position, the substantially planar tag of Figure 5N will be symmetrical about the diametric axis of the golf ball, which diametric axis intersects the center of the golf ball.
- the tag of Figure 5N may be introduced into a core material to fabricate a golf ball according to one of the methods described below relative to Figures 6A - 6D and Figure 7.
- FIG. 5O shows another exemplary embodiment of a tag which may be used in golf balls of the present invention.
- Tag 480 is similar to the tag 460 except it includes additional perforations in the antenna portions 488 and 489.
- the tag 480 includes a diode 481 which is coupled between the antenna portions 488 and 489 and includes a transmission line 490 which is coupled between the antenna portions, in which, together with the antenna portions, defines the perforation 482.
- nine circular perforations on each of the antenna portions provide additional openings for the core material to be extruded through the perforations, such as perforations 482A, 482B, 482C, and 482D.
- FIG. 5P shows another exemplary embodiment of a tag which may be used in golf balls of the present invention.
- the tag 500 is a substantially circular tag which is also substantially planar.
- the tag includes a diode 501 coupled between antenna portions 508 and 509.
- the outer perimeter 503 of the tag 500 is substantially circular and includes a perforation 502 within the outer perimeter 503.
- a transmission line 510 is coupled between the antenna portions 508 and 509.
- perforations of different sizes are included on the antenna portions 508 and 509.
- smaller perforations 502C and 502 are on the antenna portion 508, while larger perforations such as perforations 502A and 502B are on the antenna portion 509.
- the tag 500 may be included in a golf ball core and fabricated according to the techniques described below. The perforations in this tag will allow for the core material to be extraded through the perforations to create a structure similar to that shown in Figure 3E.
- FIG. 6A through 6D and Figure 7 will now be referred to while describing various embodiments of methods of fabricating golf balls of the present invention.
- the following discussion assumes a two-piece ball having a core material which is surrounded by a relatively thin shell, such as the golf ball shown in Figure 3A. It will be appreciated, however, that the following discussion will also apply to one-piece golf balls and to golf balls having more than two pieces.
- the one exemplary method shown in Figures 6A - 6D begins with a cylindrical-shaped slug 600 which, in one embodiment, is about 1.375 inches high and has a diameter of 1.125 inches.
- the cylindrical-shaped slug is typically a rubber composition which has not been vulcanized. Examples of such compositions are described in U.S.
- the slug 600 is sliced in half to create slug portions 602 and 604.
- the material of the slug 600 is an unvulcanized rubber which is extraded to form the shape of the slug 600. It will be appreciated that this is one method of forming the two portions as shown in operation 702 of Figure 7. In an alternative embodiment, these two portions may be formed separately as two separately extraded pieces or in some other manner to create the two separate portions separately rather than from a single slug such as slug 600. These two portions may be considered golf ball precursor portions.
- a tag such as tag 606 is placed between the two portions.
- the tag 606 typically will include antenna portions 609 and 610 between which are coupled a diode 608.
- the tag 606 may also include a transmission line 610A which is disposed in the central perforation 607.
- the tag 606 may be similar to the tag shown in Figure 4 A.
- the seam 615 may not be sealed or glued together; that is, the two portions 602 and 604 may not be held together by glue in the configuration shown in Figure 6C.
- the extraded, unvulcanized rubber (which may be used in certain embodiments) of the two portions has enough tackiness to hold together the tag and two portions 602 and 604.
- the combined stracture 620 is placed in a mold 622 as shown in Figure 6D and as described in operation 706 of Figure 7.
- the mold is of a proper size to form a resulting core size of about 1.5 inches in diameter.
- the core will typically weigh in the range of about 34.75 to 35.25 grams.
- the slug is molded, typically in a high temperature and high pressure operation.
- This molding operation due to the high temperature and high pressure, vulcanizes and cures the rubber composition from the two slug portions into one unit and also causes this composition to flow through the perforations in the tags to create a unitary structure, such as the stracture shown in Figure 3E.
- the core rubber composition is vulcanized/cured for eight minutes at a temperature of 325° Fahrenheit under a high pressure clamping of about 2 tons per square inch.
- the core is allowed to cool overnight at room temperature and then the surface is cleaned prior to injection molding of the cover material, such as shell 102 of Figure 3A, over the core.
- cover material such as shell 102 of Figure 3A
- suitable cover material are known in the art, including materials which are described in U.S. Patent 5,538,794.
- the ball may be processed in finishing operations which involve ball trimming, surface cleaning, stamping/logo application and painting.
- embodiments of the invention may be used in golf balls constructed as one-piece balls or more than 2 piece balls (e.g. balls having more than one core).
- slug portions may be combined together with one or more tags to form a golf ball.
- a cylindrically shaped slug (such as the slug 600 in Figure 6A) may be sliced into four pieces which are then combined with a tag or two tags or four tags to create an assembly which is similar to stracture 620 and which can then be molded into a golf ball or golf ball core.
- the four pieces may each be half cylinders which have equal sizes. These four pieces may alternatively be separately formed by ah extruder to create the four pieces rather than slicing a larger cylindrical slug. These four pieces may receive four tags between the inner faces of the pieces.
- Figure 6E shows, in an exploded top view, an example of four slug portions 631, 632, 633 and 634 receiving four tags 637, 638, 639 and 640; this assembly is, after the tags are inserted, placed into a molding chamber to form the golf ball (in the case of a one-piece golf ball construction) or a core of a golf ball (in the case of a more than one piece golf ball construction).
- a handheld transmitter/receiver which may be used as the handheld unit 14 of Figure 1A will now be provided in conjunction with Figures 8 A, 8B, and 8C.
- the handheld unit consists of a battery powered transmitter and antenna radiating the radio frequency signal in the 902- 928 MHz band, and an antenna and a receiver operating over the 1804-1856 MHz band, and an audio and visual interface to the user of the handheld unit.
- the audio interface may optionally be an ea ⁇ hone rather than a speaker, and as an option, the handheld unit may utilize a vibrating transducer to alert the user to the presence of a ball.
- a visual display such as a meter or a string of LEDs may also provide a proximity measure to the user so that the user can tell whether or not the user is getting closer to the ball or further from the ball as the user walks around searching for the ball.
- the handheld unit 800 shown in Figure 8A includes a battery powered transmitter and battery powered receiver and an audio and visual interface.
- the implementation shown in Figure 8A uses a frequency-hopping transmitted signal that complies with the Federal Communications Commission Rules Part 15.247 for intentional radiators.
- the radio frequency transmitted signal originates in the synthesizer 804 which is an oscillator at twice the transmitted frequency which receives a frequency sweeping sawtooth modulation from a sweep driver 806.
- the synthesizer 804 also receives a control from the hopping-implementing synthesizer driver 802 which causes the synthesizer to hop from frequency to frequency within the band 1804-1856 MHz.
- the output from the synthesizer 804 is amplified by the buffer amplifier 808 and directed to a divide-by-two divider 810, the output of which is directed to a filter 812.
- the output from the filter 812 is directed to a transmitter amplifier chain 814 which provides an output to a filter 816 which in turn provides an output to the transmitter antenna 818, thereby transmitting the radio frequency signal in the range of 902-928 MHz.
- the transmitter antenna is moderately directive and produces the radiated signal which can be reflected by a tag in a lost golf ball.
- the diode in the tag causes the reflected signal to have double of the frequency of the received signal, which received signal was emitted by the transmitter antenna.
- the receiver of the handheld unit 800 includes a moderately directive receiver antenna 830 which receives the reflected second harmonic signal produced by the diode in the lost golf ball. This received signal is filtered in filter 828 which provides the filtered output to a receiver amplifier chain 826 which amplifies the filtered signal, which is then outputted to a further filter, filter 824, the output of which is directed to a mixer 822.
- the mixer 822 also receives the filtered output of the amplifier 808 through the filter 820.
- the output of the mixer 822 is an audio frequency difference product of the second harmonic of the frequency swept transmitter signal, and the signal received from the frequency-doubling tag within the ball.
- the audio frequency difference product has a pitch that is determined by the sweeping of the transmitter frequency and the time delay between the transmitted and received signals. Thus, the pitch of the audio frequency difference product provides an indication of the distance between the handheld unit and the lost golf ball.
- the audio frequency difference product from the mixer is provided through a DC block 831 which provides the output (filtered for DC level) to an amplitude equalizer and filter 832 which provides an output to an audio amplifier and conditioner 834 which drives the speaker 836.
- a visual display 838 is also coupled to the amplifier and conditioner 834 to provide a visual display of the proximity of the golf ball and then optional handheld vibrating transducer 840 may provide a vibrating output, the intensity of the vibration increasing as the ball approaches the handheld unit.
- any particular handheld unit may have one or more of these indicators. For example, it may have only a speaker or a headphone output or it may have only a visual display or only a vibrating display or it may have two or more of these outputs.
- the handheld unit 850 of Figure 8B is similar in stracture and operation to the handheld unit 800 except that the frequency synthesizer 856 operates in the band 902-928 MHz rather than double that frequency as in the case of synthesizer 804. Accordingly, there is no divide-by-two divider in the handheld unit 850 but rather there is a 2x frequency multiplier 868 in the handheld unit 850.
- the handheld unit 850 is an implementation that uses a frequency-hopping transmitted signal that complies with the FCC Rules Part 15.247 for intentional radiators.
- the radio frequency transmitted signal originates in the frequency synthesizer 856 which is an oscillator at the transmitted frequency which receives a frequency sweeping sawtooth modulation from a sweep driver 854.
- the synthesizer 856 is controlled by a frequency hop driver 852.
- the oscillator output from synthesizer 856 is amplified by the buffer amplifier 858 which provides an output to the filter 860 and an output to the frequency doubler 868.
- the output from the amplifier 858 is filtered in filter 860 and amplified in the transmitter amplifier chain 862 and then filtered in filter 864 to produce a transmitted signal which is transmitted from the moderately directive transmitter antenna 866 in the band of 902-928 MHz.
- This transmitted signal may be reflected by a tag, causing a reflected signal at a double harmonic (twice the frequency) of the received signal from the transmitter antenna.
- the receiving antenna 880 picks up this reflected second harmonic and provides this received signal to the filter 878 which provides an output to a receiver amplifier chain 876 which provides an output to a filter 874.
- the received signal is filtered and amplified and provided as an RF input to the mixer 872 which also receives a filtered input from the 2x frequency multiplier 868.
- the mixer 872 produces at its output an audio frequency difference product of the second harmonic of the frequency swept transmitter signal and the signal received from the frequency-doubling tag within the ball.
- the audio frequency difference product has a pitch that is determined by the sweeping of the transmitter frequency and the time delay between the transmitted and received signals.
- This audio frequency difference product is output through a DC block 881 to an amplitude equalizer and filter 882 which in turn outputs a signal to the audio amplifier and conditioner 884 which drives the speaker 886.
- the amplifier and conditioner 884 provides an output to a visual display and the vibrating transducer 888.
- Figure 8C shows another embodiment for a handheld unit which consists of a battery powered transmitter and an antenna radiating at about 915 MHz, and an antenna and receiver operating at about 1829 MHz.
- the implementation of Figure 8C uses a direct sequence spread spectrum radar system which includes the transmitter and a receiver and a control unit, which in this case is a field programmable gate array (FPGA).
- the basic clock signal for the FPGA 902 is obtained from the local oscillator 922 which provides inputs to the amplifiers 920 and 924 which in turn drive the FPGA 902 and a phase-locked loop synthesizer 926.
- the FPGA 902 programs the phase-locked loop synthesizer 926 to the correct frequency of operation.
- the phase-locked loop synthesizer 926 is used to generate a local oscillator (LO) signal for the receiver.
- a receiver LO frequency is 1818.30 MHz.
- a frequency divider 930 is used to generate a 909.15 MHz local oscillator for the transmitter which is filtered by a band pass filter 931 (centered at 909.15 MHz (“FC”)).
- FC band pass filter
- the transmit local oscillator is modulated using a Quadrature Modulator circuit.
- This Quadrature Modulator enables a single circuit to perform all of the following features: (1) it performs a basic On-Off Keyed (OOK) modulation used in radar systems. Operating with OOK modulation not only provides an audio tone for the system but also minimizes the heat generated by the amplifiers and the transmitter, such as amplifiers 912 and 914; (2) the Quadrature Modulator produces a Binary Phase- Shift Keying (BPSK) modulation of the local oscillator signal and performs what is called a Direct-Sequence Spread Spectrum signaling.
- OOK On-Off Keyed
- BPSK Binary Phase- Shift Keying
- the Quadrature Modulator 904 provides a Single-Sideband translation of the local oscillator input signal to a transmit output frequency of 914.50 MHz. That is, the local oscillator signal is shifted up in frequency by 5.35 MHz. This frequency translation results in a received signal that is offset from the receiver's local oscillator frequency by 10.7 MHz. Having the received frequency that is offset from the receiver's local oscillator reduces the magnitude of unwanted local oscillator leakage into the receiver's high gain amplifier chain, which may include amplifiers 942 and 944 and 948 as shown in Figure 8C.
- the output of the Quadrature Modulator 904 which includes multipliers 906 and 908 as well as the mixer 910, is a Direct-Sequence, Spread Spectrum signal containing OOK modulation at a frequency of 914.5 MHz.
- This signal is filtered by two band pass filters 905 and 913 and amplified by two amplifiers 912 and 914 to approximately 1 watt and is sent to a transmit antenna 916.
- the transmit antenna also has a harmonic trap 916A, which is used to further reduce any second harmonic distortion, which if radiated, would interfere with the received signal from the tag in a lost golf ball.
- the Quadrature Modulator 904 is controlled by the FPGA 902 which provides and generates a Pseudo-Random Binary Sequence used for the Direct-Sequence Spread Spectrum signal.
- the FPGA 902 also provides and produces the OOK control signals to the modulator 904 and generates and provides the In-Phase and Quadrature-Phase signals applied to the Quadrature Modulator 904.
- the 8C is to change feature (1) of the Quadrature Modulator to implement 90-degree phase shift keying at the audio tone frequency, instead of On-Off keying.
- Features (2), Direct-Sequence Spectrum Spreading, and (3), Single-Sideband translation remain the same.
- the FPGA 902 produces the 90-degree phase shift keying signal applied to the Quadrature Modulator 904.
- the tag in the golf ball doubles the transmitted frequency from 914.5 MHz to 1829 MHz
- the tag also doubles the amount of phase shift keying modulation to 180-degree keying.
- the re-radiated signal is active 100% of the time, instead of nominally half-time for On-Off keying, and the receiver has twice as much signal energy to process in the FPGA, A/D converter, and Post Demodulation processing.
- the maximum useable range for finding the tag-equipped golf ball is increased, with a related increase in power drain on the battery.
- the receiver of the handheld unit 900 operates on the principle that the tag in the golf ball will produce a harmonic reflected signal, which in one embodiment, doubles the transmitted frequency of 914.5 MHz to a reflected signal of 1829 MHz which re-radiates this doubled signal back to the receiver of the handheld unit.
- a BPSK signal is squared, the modulation is removed and the energy in the modulated sidebands is collapsed back into a single spur at a frequency twice the carrier frequency.
- the target e.g. a tag in a lost golf ball
- despreads the signal for free eliminating the requirement for despreading circuitry in the receiver of the handheld unit.
- the receiver receives this re-radiated (reflected) signal at the receive antenna 940 and filters and amplifies this 1829 MHz signal through the amplifiers 942 and 944 and the band pass filters 941 and 943.
- the received signal from antenna 940 is filtered in band pass filter 941 which outputs its filtered signal to the amplifier 942 which outputs its filtered signal to the amplifier 942 which outputs an amplified signal to the band pass filter 943 which outputs a filtered signal to the amplifier 944 which outputs a signal to the mixer 946.
- the other input to the mixer 946 is the received local oscillator signal at a frequency of 1818.3 MHz which is received from the band pass filter 932.
- the mixer 946 performs a down-conversion to a 10.7 MHz intermediate frequency (IF) by multiplying the amplified 928 MHz signal received from amplifier 944 by the local oscillator signal of 1818.3 MHz received from the band pass filter 932.
- This multiplication also called mixing
- the sum frequency is filtered out by the 10.7 MHz intermediate frequency filter 947 which provides an output to the amplifier 948.
- This intermediate frequency filter 947 has a very small bandwidth (15 kHz) that also eliminates most of the received noise and adjacent RF (Radio Frequency) interference. What remains out of the intermediate frequency is a 10.7 MHz, OOK modulated signal that is amplified by amplifier 948 and further amplified by an amplifier 950 which includes a generator circuit 950 that generates a Receive Signal Strength Indicator (RSSI).
- RSSI generator is not unlike an amplitude modulation (AM) detector, but with a logarithmic amplitude response. This RSSI function removes the 10.7 MHz carrier, resulting in just the audio tone that was applied to the signal in the transmitter.
- An 8-bit analog-to-digital (A D) converter 952 converts the RSSI signal to a sampled digital signal. This digitized signal then undergoes post-demodulation signal processing in the FPGA 902 to further enhance the signal by reducing the noise by as much as 20 dB. This post- demodulation signal processing is performed by a Synchronous Video Generator (SVI) which performs an Exponential Ensemble Average across multiple OOK radar bursts.
- SVI Synchronous Video Generator
- the FPGA 902 is programmed to include the SVI which is used for the post-demodulation signal processing.
- the FPGA 902 converts the output of the SVI circuit back to audio, which is amplified by an amplifier 958 which drives a speaker or headphones 960.
- the digital-to-analog converter 962 may be used in conjunction with the FPGA 902 to convert the digital audio output to an analog output for pmposes of driving the speaker 960 or headphones.
- a series of LEDs or a meter driven by the digital-to-analog converter 956 may also provide a visual indication of the proximity of the golf ball to the user of the handheld unit 900.
- Figure 8D shows another embodiment for a handheld unit which consists of a battery powered transmitter and an antenna radiating at about 915 MHz and an antenna and a receiver operating at about 1829 MHz.
- the handheld unit 1000 of Figure 8D is similar in some ways to handheld unit 900 of Figure 8C.
- the handheld unit 1000 includes band pass filters 1005 and 1013 and amplifiers 1012 and 1014 in the transmitter portion of unit 1000.
- this transmitter portion includes a transmit antenna 1016 which receives the amplified signal produced by amplifiers 1012 and 1014 through a harmonic trap 1016A.
- the transmitted signal originates from a crystal oscillator 1022 and phase locked loop synthesizer 1026 which produce a signal at a reference frequency of about twice the transmitted signal.
- a divide-by-two frequency divider 1030 and a band pass filter (BPF) 1031 provide the transmitter local oscillator signal to signal generator 1004 which is controlled by the PLD (Programmed Logic Device) 1002.
- the output of the signal generator 1004 drives the amplifiers 1012 and 1014, and the amplifier 1014 is controlled by OOK control from PLD 1002.
- This OOK control pulses the transmitter on and off, in one embodiment, with an On duty cycle of 50% or less. This will save battery life and minimize heat generated in the transmitter.
- the transmitter may also include an adaptive power control which could extend battery life (and simplify the handheld' s user interface).
- the receiver portion of the handheld unit includes receiver antenna 1040 which is coupled to BPF 1041 which in turn is coupled to amplifier 1042.
- the output of amp 1042 drives amp 1044 through BPF 1043.
- the mixer 1046 which receives the output of amp 1044, down converts this output to a 10.7 MHz intermediate frequency signal which is amplified (in amp 1048) and filtered (in BPF 1049) and then processed by amplifier 1050 (which may be an Analog Devices AD 607 amplifier which generates an RSSI signal).
- the amplitude of the received signal may be measured by a Cordic transform in microcontroller 1001.
- the RSSI signal is converted by an Analog to Digital converter in the microcontroller 1001 which in turn drives a D/A converter and an amplifier and speaker 1060 (or some other appropriate output device).
- Several three-dimensional tags having a substantial surface area in more than one plane will now be described by referring to Figures 9A through 9H and 10 A and IOC. It will be appreciated that these are some of many possible examples of three-dimensional tags, and it will be appreciated that the previously described planar tags may be formed to have a substantially non- planar shape in the manner described below.
- FIG. 9A shows an example of a spiral tag 1100 having a first spiral antenna portion 1101 and a second spiral antenna portion 1102 which are coupled together through the diode 1103.
- the spiral antenna portion 1102 includes an end 1107
- the spiral antenna portion 1101 includes an end 1106.
- the winding direction through both antenna portions is maintained, as can be seen by beginning at the end 1107 and following the direction of the winding of the antenna portion 1102 through and into the antenna portion 1101, and ultimately arriving at the end 1106 while maintaining the same winding direction through both of these spiral antenna portions.
- the example of the spiral antenna 1120 shown in Figure 2B is a case where the first and second antenna portions are mirror images or complements of each other; thus the winding direction is reversed between the two antenna portions 1121 and 1122. These antenna portions are coupled together by the diode 1123 as shown in Figure 9B.
- the complement or mirror image nature of the two spiral antenna portions can be seen by beginning at the end 1127 and winding in a winding direction of the spiral antenna portion 1122, which is an opposite winding direction relative to the spiral antenna portion 1121, where the winding begins at the end 1126.
- An electrical schematic of the spiral tags 1100 and 1120, as well as the other spiral tags shown in Figures 9D through 9H, is shown in Figure 9C.
- the tag 1130 of Figure 9C includes a diode 1133 which is coupled between antenna portions 1131 and 1132.
- An inherent inductor, as shown in Figure 9C, is coupled in parallel across the diode 1133.
- the tag 1130 works in a manner which is similar to the tag shown in Figure 2A, except that such a tag has substantial surface area in more than one plane.
- the multiplanar or three-dimensional tag described herein has improved findability relative to a tag which is substantially in one plane (e.g. such as the tag shown in Figure 3 A) due to the fact that single-plane tags have dead spots.
- An example of a dead spot is when the tag lands in an orientation in which the plane of the tag is pe ⁇ endicular to the waves which are transmitted from the handheld unit ( see the signal 16 which is represented as waves originating from the handheld transmitter).
- spiral tags described herein such as spiral tags 1100 and
- the diode allows for the diode to be located near the center of the ball, which is desirable for protection from shock and for meeting golf ball flight and balance requirements.
- the stracture of these tags provides greater cross-sectional areas in all planes, and this provides better performance than a single-planar tag which might land in an orientation where very little of the transmitted power is received by such a single-planar tag.
- the structures of the spiral antenna portions naturally form an ideal shape for shock abso ⁇ tion. It will be appreciated that control of the winding radius and pitch may be used to create a structure which is resonant of both the transmit (e.g. 915 MHz) and receive (e.g. 1830 MHz) frequencies.
- Figures 9D, 9E and 9F show examples of spiral tags which are contained within slugs which are used to form golf ball cores. These slugs are similar to the slug shown in Figure 6C which includes the tag 606.
- the slugs shown in Figures 9D, 9E and 9F may be formed by extruding the ball material around the spiral tag or by inserting the spiral tag into a void or cutout in each half -portion of a slug. After the spiral tag has been placed within the slug, then the combination may be molded in a high pressure and high temperature vulcanization process which is similar to that described relative to Figure 6D above.
- the slug assembly 1140 includes a spiral tag having a diode 1143 which is coupled between spiral antenna portions 1141 and 1142.
- This spiral tag is similar to the spiral tags shown in Figures 9A, 9B and 9C.
- the spiral tag is included or encased within the slug material 1135 in an extrusion operation described above or by inserting the spiral tag into a void between two half- portions of the slug material 1145.
- the spiral tag has the spiral antenna portions or windings inverted as shown in Figure 9E, with the diode 1153 coupled between these antenna portions 1151 and 1152.
- the spiral tag is encased within the slug material 1155 to form the slug assembly 1150 shown in Figure 9E.
- the spiral tag of Figure 9E is electrically similar to the circuit shown in Figure 9C.
- the spiral tag in the slug assembly 1160 of Figure 9F is the same as the spiral tag shown in Figure 9E except that the spiral antenna portions are formed from flat wire (see, for example, Figure 9G) relative to the cylindrical wire used in Figure 9E (see, for example, Figure 9H).
- the slug assembly 1160 has a spiral tag which includes the diode 1163 which is coupled between spiral antenna portions 1162 and 1161 which are formed out of flatter wire than the spiral antenna portions 1151 and 1152.
- the spiral tag of Figure 9F is included within slug material 1165 to form this slug assembly 1160. It will be recognized that these spiral tags have perforations within their outer perimeters which allow a material to flow through the tag (e.g. in a molding operation).
- FIGS 9G and 9H The difference between the types of wires which may be used for the spiral antenna portions is shown in Figures 9G and 9H.
- the diode 1173 couples together flat wire antenna portions 1172 and 1171, which have been formed into spiral antenna portions.
- This tag 1170 is electrically similar to the tag shown in Figure 9C.
- the tag 1180 shown in Figure 9H includes a diode 1183 coupled between spiral antenna portions 1181 and 1182.
- This tag 1180 is electrically similar to the tag shown in Figure 9C.
- the tag 1180 uses wire which has a cylindrical cross-section rather than the flat wire shown in the tag 1170 of Figure 9G.
- Figure 13 shows an exemplary method 1301 for constructing a golf ball, which in the case of this method, has a spiral tag; this method may also be used with the various other tags described herein, such as the multiplanar tags of Figures 10A and IOC or the planar tags of Figures 3A and 4A.
- This method may be used to construct one-piece or two-piece or more than two piece golf balls.
- the extrader 1303 extrudes precursor portions 1309 and 1311 from extrasion openings 1307 and 1305 respectively; the extrader 1303 pushes, in one embodiment, unvulcanized rubber material which is used to form the core of a golf ball (and hence it may be considered a core precursor material).
- the extrader pushes the material through the openings which have been designed to produce properly sized precursor portions.
- a knife or blade may be used to create a beginning/front edge and a back edge on the portions.
- the portions 1309 and 1311 are then respectively transported (e.g. by a conveyor belt) to holders or fixtures 1319 and 1317 as indicated by arrows 1315 and 1313. These holders serve to hold the portions in place while a stamper 1323, having a mold 1321, robotically stamps an imprint of the mold 1321 into the flat face of the portions 1309 and 1311.
- the mold is designed to have a similar (e.g. substantially the same) shape and size as the tag (e.g. tag 1330) which is to be placed within the slug portions.
- the slug portions 1309 and 1311 are soft enough, and the mold 1321 hard enough, that a void, having a shape and size which is designed to receive at least a portion of the tag, is created in the face of the portions by the mold. It will be appreciated that the void, on one of the portions, is designed to normally hold about one-half of the tag (and the other half is held in the void in the face of the other portion).
- two stamped portions 1327 and 1325 are created. These two stamped portions 1327 and 1325 are then combined with a tag 1330 through a robotic arm 1333 which places the tag 1330 into at least one of the voids 1328 and 1329 in the portions 1327 and 1325.
- the robotic arm 1333 releases the tag 1330, and this allows the two half portions 1327 and 1325 to be joined together with the tag 1330, in the voids 1328 and 1329, sandwiched between the two portions.
- This assembly 1337 of tag 1330 and portions 1327 and 1325 may then be processed further by placing the assembly 1337 into a molding chamber to mold the ball or ball core (in a manner which is similar to the operation shown in Figure 6D).
- a camera and a motion/position control system may be used to properly position the tag 1330 into at least one of the voids 1328 and 1329.
- the stamper 1323 may place a tag into the just imprinted void while the slug portion is fixed within the holder.
- the tag may be manually (e.g. by a human) placed within a void of a first slug portion and then the other slug portion is joined manually to the first slug portion to create the assembly 1337. Further, the stamping operation may also be performed manually.
- All of the single-plane tags described above may be formed in a manner to create a three-dimensional or multiplanar tag by twisting or bending or otherwise forming such tags so that they have a three-dimensional shape.
- Figure 10A shows an example, in a top view, of an "S" shaped tag 1200.
- This tag may be any of the tags shown in Figures 3A through 5P, and it may be formed by twisting or bending the antenna portions, prior to attaching the diode or after attaching the diode.
- the tag 1200 After the tag 1200 is formed, it will be placed within a slug material which has been cut or otherwise formed to have a conforming shape to receive the "S" shaped tag 1200.
- FIG 10B An example of such slug portions is shown in Figure 10B which includes slug portions 1202 and 1204 having been cut (or formed) into a shape to receive the "S" shaped tag.
- the slug assembly may then be placed in a molding chamber, similar to the chamber shown in Figure 6D, to mold the tag within the slug material to create a golf ball core having the tag.
- the tag may include multiple perforations or at least one perforation, allowing the core material to flow through the perforations in the multiplanar tag to provide a unitary structure such as that shown in Figure 3E in the case of a multiplanar tag.
- Figure IOC shows another example of a multiplanar tag formed from a single-plane tag such as any one of the tags discussed relative to Figures 3A through 5P.
- the tag may be bent or twisted or otherwise formed into the shape shown in Figure IOC.
- Figure 10C is a top view of the tag 1210.
- Figure 10D shows two slug portions 1212 and 1214 which have been cut or otherwise formed to receive the tag 1210. The cut in the slug creates a void into which the tag 1210 is placed.
- Figure 10D is a top view of these slug portions and shows how the slug portions can receive the tag 1210. After receiving this tag, the slug portions may be brought together and placed within a molding chamber to mold the slug with the tag 1210 into a golf ball core, similar to the operation shown in Figure 6D above.
- a golf cart 1250 which is motorized (e.g. an electric cart or gasoline powered cart) is shown having a cradle 1251 which is designed to receive and hold a handheld unit, such as the handheld unit 14 of Figure 1A.
- a battery recharger system 1252 is coupled to the cradle 1251 to recharge the batteries (which may be rechargeable batteries) in the handheld unit which is placed within the cradle.
- FIG 11B shows an example of a pull cart which may be used in golf.
- the pull cart 1255 includes a cradle 1256 which is designed to receive a handheld unit, such as the handheld unit 14 of Figure 1 A.
- the pull cart is shown without a recharging unit, but it will be appreciated that optionally it may include a recharging unit (which includes a battery) to recharge the battery in the handheld unit while it is stored or stowed in the cradle 1256 of the pull cart 1255.
- Golf bags such as “shoulder bags,” may also include a cradle or holster for holding a handheld unit. These bags, such as Belding bags, are typically slung over the golfer's shoulder and carried in this manner. These bags may optionally include a rechargeable battery to recharge the batteries in the handheld.
- Various embodiments of the invention provide for methods of operating golf courses and methods of using findable balls with handhelds.
- the use of findable balls and handhelds will enable golfers to complete an 18 -hole round of golf at a golf course in less time because the time spent looking for lost balls is substantially reduced.
- a golfer with a handicap in excess of 15 (more than 80% of worldwide golf players) will hit ten or more shots per round that do not land in the fairway.
- These off-fairway shots are typically not lost but can be found within a search time frame of about 10 seconds to 5 minutes. With a system as described herein, such as a findable ball and a handheld unit, this search time frame is minimized and the pace of play is not adversely impacted.
- a typical golfer equipped with a handheld unit and findable balls as described herein should experience an 8-12 minute acceleration in the time it takes him/her to complete an 18-hole round of golf.
- An 8-minute acceleration represents a 3% throughput improvement for golf course operators who expect an 18-hole round to take about 270 minutes.
- Golf course operators go to great lengths to communicate and enforce rapid pace of play. Score cards, golf cart signage, on-course signage and roving marshals all have a priority emphasis on speeding up play. Much like a restaurant needs to move tables, the golf course operator needs to get as many players as possible through the course in a given day.
- the findable balls and handhelds described herein may be provided by golf course operators to the players so that the golf course operators may achieve this accelerated throughput which will increase the profitability of the golf course operator by increasing revenue to the golf course operator.
- golf course operators may utilize aspects described herein.
- a golf course operator may give a discount, such as a discount on the green fee, to a golfer who will use a findable ball and handheld but not give such a discount to a golfer who does not use a findable ball and handheld.
- the golf course may rent or provide for free findable balls and handheld units to those golfers who do not have their own or may require all golfers to use findable balls and handheld units.
- a golf course may, after the course closes, cause its employees to search for findable balls containing tags which remain on the course after the course has closed in order to retrieve such balls. By doing so, the course will have fewer such balls and thus there will be fewer false positives (e.g. finding someone else's lost ball from a prior round of golf).
- the golf course may also employ other methods if findable balls and handheld units are used. For example, the golf course may decide to cut the grass less often in rough areas, allowing this grass to grow higher than is normally done in golf courses which do not use findable balls and handheld units to find the balls. This will tend to decrease expenses for the golf course.
- the golf course may charge for the use of a golf course (an 18-hole round of golf) based on the amount of time used if the golfer does not use a findable ball and handheld unit, but if the golfer does use a findable ball and a handheld unit, then the charge is a fixed amount or a fixed amount up to a certain amount of time to play the round of golf.
- Figure 12 shows a flowchart of one particular method of using findable balls and a handheld. This method may be performed largely by the golf course.
- the method 1260 shown in Figure 12 is one example, and it will be appreciated that there are numerous other examples in which different operations are performed in different sequences or are not present or additional operations are present.
- the golf course determines whether a golfer has findable balls and handhelds (operation 1261). If the golfer does have findable balls and handhelds and will use them, then a green fee discount (or some other discount) or some other legal consideration is given to the golfer who will use the findable balls and handheld (operation 1263).
- the golf course may rent or provide for free findable balls and handhelds for use by the golfer, but the golfer will not, in this example, receive a green fee discount.
- all golfers after operations 1263 and 1265 will be using handhelds and findable golf balls (operation 1267). If a ball gets lost, then a golfer may find the lost ball with the handheld in operation 1269. After the golf course has closed for play (or after a round of golf has concluded), golf course employees may search for findable balls (using a handheld unit) which remain on the course.
- operation 1271 which may not be performed by some golf courses.
- the operation 1271 may be performed at some predetermined time (after the course closes) or otherwise (e.g. when it is decided that too many golfers are finding too many false positives).
- the operation may be performed after each round of golf or every other day after the course closes or once a week (e.g. Sunday night after the course closes) or at some other interval.
- operation 1273 the golf course decides to cut the grass in the rough areas less often, thereby allowing it to grow higher. It will also be appreciated that this operation 1273 is also optional.
- each golf ball could be printed with a unique identification number such as a serial number in order to allow a user to identify from a group of lost balls which lost ball is his/her lost ball.
- a quasi-unique identifier such as a manufacturing date when the ball is manufactured, may be printed on the outside of the ball so that it can be read by a user to verify that a user's ball has been found within a group of lost balls which have been uncovered by the handheld unit.
- the embodiments of the present invention may be used with one piece or three-piece golf balls in addition to two-piece golf balls described above.
- the impedance of the diode may be matched to the impedance of the antenna.
- the tags discussed above are passive tags having no active components such as semiconductor memory circuits, and the antenna does not need to energize such active components such as semiconductor memory components.
Abstract
Description
Claims
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JP2006502854A JP4476277B2 (en) | 2003-01-17 | 2004-01-15 | Apparatus, method and system related to a golf ball that can be found |
CA002513670A CA2513670A1 (en) | 2003-01-17 | 2004-01-15 | Apparatuses, methods and systems relating to findable golf balls |
AU2004207473A AU2004207473A1 (en) | 2003-01-17 | 2004-01-15 | Apparatuses, methods and systems relating to findable golf balls |
EP04702570A EP1590050A2 (en) | 2003-01-17 | 2004-01-15 | Apparatuses, methods and systems relating to findable golf balls |
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US10/346,919 US20040142766A1 (en) | 2003-01-17 | 2003-01-17 | Apparatuses, methods and systems relating to findable golf balls |
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US9757619B2 (en) | 2010-11-10 | 2017-09-12 | Nike, Inc. | Systems and methods for time-based athletic activity measurement and display |
US11600371B2 (en) | 2010-11-10 | 2023-03-07 | Nike, Inc. | Systems and methods for time-based athletic activity measurement and display |
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Also Published As
Publication number | Publication date |
---|---|
US8425350B2 (en) | 2013-04-23 |
WO2004067109A3 (en) | 2005-05-19 |
US20070155520A1 (en) | 2007-07-05 |
US20040142766A1 (en) | 2004-07-22 |
CN1761503A (en) | 2006-04-19 |
KR20050114608A (en) | 2005-12-06 |
EP1590050A2 (en) | 2005-11-02 |
US8002645B2 (en) | 2011-08-23 |
US20060128503A1 (en) | 2006-06-15 |
US20110316192A1 (en) | 2011-12-29 |
AU2004207473A1 (en) | 2004-08-12 |
ZA200505685B (en) | 2006-04-26 |
CA2513670A1 (en) | 2004-08-12 |
JP2006518247A (en) | 2006-08-10 |
JP4476277B2 (en) | 2010-06-09 |
US20070259740A1 (en) | 2007-11-08 |
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