EP0308935A1 - Antenna bracelet for a radio receiver incorporated in a watch - Google Patents
Antenna bracelet for a radio receiver incorporated in a watch Download PDFInfo
- Publication number
- EP0308935A1 EP0308935A1 EP88115606A EP88115606A EP0308935A1 EP 0308935 A1 EP0308935 A1 EP 0308935A1 EP 88115606 A EP88115606 A EP 88115606A EP 88115606 A EP88115606 A EP 88115606A EP 0308935 A1 EP0308935 A1 EP 0308935A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bracelet
- conductor
- receiver
- antenna according
- antenna
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G21/00—Input or output devices integrated in time-pieces
- G04G21/04—Input or output devices integrated in time-pieces using radio waves
-
- G—PHYSICS
- G04—HOROLOGY
- G04R—RADIO-CONTROLLED TIME-PIECES
- G04R60/00—Constructional details
- G04R60/04—Antennas attached to or integrated in watch bracelets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/273—Adaptation for carrying or wearing by persons or animals
Definitions
- the present invention relates to a wristband antenna for radio receiver integrated in a watch.
- Such a receiver is intended for example for the reception of a frequency band of several megahertz defined in the VHF and UHF ranges (that is to say from 80 MHz to 500 MHz or more)
- the wavelength ⁇ is too long for the antenna that can be integrated into a watch strap to have a correct size related to it; that is to say of the order of ⁇ / 2.
- the arm of the bracelet wearer and the proximity of his body absorb waves, dampen the antenna, thus disrupting adaptation and radiation.
- the real behavior of the arm is difficult to quantify and can be different depending on the morphology of the individual, his metabolism and the way of wearing his watch loose or tight.
- the antenna is optimized, in terms of its effectiveness, to be worn, it must remain operational when the watch strap is removed to be placed on a table, for example.
- the antenna design must therefore take account of these two operating modes. Another problem, linked to the necessary miniaturization, is to avoid the antenna adaptation circuits comprising inductors which are bulky and cause losses on the signal.
- the antenna of the present invention includes in its structure the inductance necessary for its own agreement.
- the invention therefore proposes a wristband antenna for a radio receiver integrated in a watch formed from a box containing said receiver and a strap, the bottom of the box comprising a first metal part which forms the mass of the receiver, characterized in that it includes at least a first conductor metallic disposed inside the bracelet near the external surface of the bracelet on the top side of the watch case, connected to the input of said receiver, and having the shape of a sinuating wire between the two side walls of the bracelet, the unfolded length of this conductor being close to ⁇ / 4, ⁇ being the wavelength corresponding to the central frequency of the signal to be received.
- Such a wristband antenna makes it possible to obtain a large bandwidth on reception, a great simplicity of embodiment in particular requiring no adaptation circuit for a receiver of input impedance close to 50 ⁇ .
- the invention provides a wristband antenna which comprises a second metallic conductor connected to the ground of the receiver and located near the internal surface of the wristband on the side of the case back of the watch, the two conductors therefore being arranged close to the two. opposite surfaces of the bracelet.
- the second metallic conductor like the first conductor, in the form of a sinuating wire between the two side walls of the bracelet, the unfolded length of this conductor being ⁇ / 4, ⁇ being the corresponding wavelength at the center frequency to be received.
- Figures 1 and 2 show a watch 10 consisting of a housing 11 and a bracelet, for example formed of two parts 12 and 13.
- a receiver 14 is disposed in the housing 11.
- the inventive bracelet antenna comprises at least a first metallic conductor 16 disposed near the external surface 17 of the strap 12, on the top side 18 of the case 11.
- This first conductor 16 is connected to the input of the receiver 14. It has the shape of a sinuous wire between the two side walls 20 and 21 of the strap 12. We will speak later of a "zig-zag" structure. This wire has an extended length of the order of ⁇ / 4; ⁇ being the wavelength corresponding to the center frequency of the signal to be received.
- the bracelet antenna may also include a second conductor 22 connected to the ground of the receiver 14.
- This second conductor 22 may have the form of a film placed close to the internal surface 19 of the bracelet situated on the bottom side 23 of the housing 11 .
- each of the two conductors 16 and 22 is disposed respectively inside one of the two parts 12 and 13 of the bracelet.
- Figures 1 and 2 of the invention are only schematic figures. Thus, for greater clarity, the proximity of the first and second conductors respectively to the external face and the internal face of the bracelet, which does not appear clearly, given the thin thickness of the bracelet, in these two figures 1 and 2, is highlighted in Figures 3A and 3B.
- This bracelet antenna behaves like a two-strand antenna, or like a dipole integrated into the bracelet, of equivalent electrical length equal to ⁇ / 2.
- the unworn watch therefore reacts like a dipole.
- the bottom of the case, or the second strand 13 of the bracelet ensures the earthing of the receiver.
- the other strand 12 the dipole of which is raised a little less than the thickness of the bracelet, produces a capacitor capturing the radial field around the arm.
- the dipole is produced, at least in part, by the "zig-zag" structure allowing integration of the tuning choke of the antenna in the strand itself.
- the second conductor 22 can also have a "zig-zag" structure as represented by the first connector. In this case, it also has an extended length of ⁇ / 4.
- the realization of a conductor in "zig-zag” is done by embedded wire or ribbon of a shape ensuring the bending, or by a printed circuit on flexible film sliding freely in a groove of the bracelet.
- the antenna can also be produced with conductors embedded in the molding, their shape ensuring the flexibility of the bracelet.
- the second conductor 22 connected to the bottom of the metal case is intended to provide, in addition to the case, the taking of the potential of the arm.
- the bottom 23 of the receiver watch case in fact, provides a galvanic or capacitive connection with the wearer by means of a large conductive surface covered or not by a thin insulating coating.
- the first conductor 16 performs a complex function according to the degree of tightening of the bracelet and the degree of sweating of the wearer.
- the conductor 22 closest to the skin ensures the reference to the potential of the wrist (a kind of earth).
- the conductor 16 away from the skin by the thickness of the bracelet produces a capacitive antenna (effective height approximately equal to the thickness of the bracelet) ensuring the capture of the radial field around the wrist. This is the desired effect, because the field around a cylindrical conductor can only be radial.
- the inductance made on the bracelet then compensates for the capacitive term.
- a variant of the invention which increases its efficiency, consists in using, as shown in FIG. 4, the upper part 24 of the housing 11, in the form for example of a metal crown isolated from the bottom of the housing, to increase the average effective height of the wristband antenna.
- the efficiency of the antenna in radial behavior is increased with a sufficient length of the two conductors 16 and 22, as shown in FIG. 5, by the doubling of thickness 27 when the bracelet is buckled and the normal projection 25 made by the end of a part 12 of the bracelet after passing through the loop 26.
- a bracelet antenna produced on Kapton film according to the invention makes it possible to obtain an optimum gain located at - 15dB compared to the ⁇ / 2 dipole for the bracelet worn on the wrist.
- This gain is, of course, a function of the direction of measurement and of the multiple attitudes that the wearer of the bracet can adopt.
- the deployed and unworn bracelet gives a gain of -15dB also with ommidirectional radiation relative to the electrical axis of the antenna.
- the bracelet 12, 13 can be produced in a single piece, this can for example be an elastic bracelet.
- interconnection devices of the bracelet to the case, known to those skilled in the art, have not been described: this may be, for example, electrical contacts produced by means of bars, flexible connections by film soldered or crimped.
Abstract
Description
La présente invention concerne une antenne bracelet pour récepteur radioélectrique intégré dans une montre.The present invention relates to a wristband antenna for radio receiver integrated in a watch.
Un tel récepteur est destiné par exemple à la réception d'une bande de fréquence de plusieurs mégahertz définie dans les gammes VHF et UHF (c'est-à-dire de 80 MHz à 500 MHz ou plus)Such a receiver is intended for example for the reception of a frequency band of several megahertz defined in the VHF and UHF ranges (that is to say from 80 MHz to 500 MHz or more)
A ces fréquences les difficultés sont nombreuses :
- la longueur d'onde λ est trop longue pour que l'antenne intégrable à un bracelet montre ait une taille correcte rapportée à celle-ci ; c'est-à-dire de l'ordre de λ /2.
- Le bras du porteur du bracelet et la proximité de son corps absorbent les ondes, amortissent l'antenne, perturbent ainsi l'adaptation et les rayonnements.There are many difficulties at these frequencies:
- the wavelength λ is too long for the antenna that can be integrated into a watch strap to have a correct size related to it; that is to say of the order of λ / 2.
- The arm of the bracelet wearer and the proximity of his body absorb waves, dampen the antenna, thus disrupting adaptation and radiation.
Le comportement réel du bras est difficilement quantifiable et peut être différent selon la morphologie de l'individu, son métabolisme et la manière de porter sa montre lâche ou serré.The real behavior of the arm is difficult to quantify and can be different depending on the morphology of the individual, his metabolism and the way of wearing his watch loose or tight.
Par ailleurs même si l'antenne est optimisée, dans son efficacité, pour être portée, elle doit rester opérationnelle lorsque le bracelet-montre est ôté pour être posé sur une table, par exemple.Furthermore, even if the antenna is optimized, in terms of its effectiveness, to be worn, it must remain operational when the watch strap is removed to be placed on a table, for example.
La conception de l'antenne doit donc tenir compte de ces deux modes de fonctionnement. Un autre problème, lié à la miniaturisation nécessaire, est d'éviter les circuits d'adaptation de l'antenne comportant des inductances qui sont encombrantes et causes de pertes sur le signal.The antenna design must therefore take account of these two operating modes. Another problem, linked to the necessary miniaturization, is to avoid the antenna adaptation circuits comprising inductors which are bulky and cause losses on the signal.
Pour résoudre ces différents problèmes, l'antenne de la présente invention comporte dans sa structure l'inductance nécessaire à son propre accord.To solve these various problems, the antenna of the present invention includes in its structure the inductance necessary for its own agreement.
L'invention propose donc une antenne bracelet pour récepteur radioélectrique intégré dans une montre formée d'un boîtier contenant ledit récepteur et d'un bracelet, le fond du boîtier comportant une première partie métallique qui forme la masse du récepteur, caractérisée en ce qu'elle comprend au moins un premier conducteur métallique disposé à l'intérieur du bracelet à proximité de la surface externe du bracelet du côté du dessus du boîtier de montre, relié à l'entrée dudit récepteur, et ayant la forme d'un fil sinuant entre les deux parois latérales du bracelet, la longueur dépliée de ce conducteur étant voisine de λ /4, λ étant la longueur d'onde correspondant à la fréquence centrale du signal à recevoir.The invention therefore proposes a wristband antenna for a radio receiver integrated in a watch formed from a box containing said receiver and a strap, the bottom of the box comprising a first metal part which forms the mass of the receiver, characterized in that it includes at least a first conductor metallic disposed inside the bracelet near the external surface of the bracelet on the top side of the watch case, connected to the input of said receiver, and having the shape of a sinuating wire between the two side walls of the bracelet, the unfolded length of this conductor being close to λ / 4, λ being the wavelength corresponding to the central frequency of the signal to be received.
Une telle antenne bracelet permet d'obtenir une grande largeur de bande en réception, une grande simplicité de réalisation ne nécessitant notamment aucun circuit d'adaptation pour un récepteur d'impédance d'entrée voisine de 50 Ω.Such a wristband antenna makes it possible to obtain a large bandwidth on reception, a great simplicity of embodiment in particular requiring no adaptation circuit for a receiver of input impedance close to 50 Ω.
Avantageusement l'invention propose une antenne bracelet qui comprend un deuxième conducteur métallique relié à la masse du récepteur et situé à proximité de la surface interne du bracelet du côté du fond de boîtier de la montre, les deux conducteurs étant donc disposés à proximité des deux surfaces opposées du bracelet.Advantageously, the invention provides a wristband antenna which comprises a second metallic conductor connected to the ground of the receiver and located near the internal surface of the wristband on the side of the case back of the watch, the two conductors therefore being arranged close to the two. opposite surfaces of the bracelet.
Dans une réalisation particulière le deuxième conducteur métallique, tout comme le premier conducteur, à la forme d'un fil sinuant entre les deux parois latérales du bracelet, la longueur dépliée de ce conducteur étant λ /4, λ étant la longueur d'onde correspondant à la fréquence centrale à recevoir.In a particular embodiment, the second metallic conductor, like the first conductor, in the form of a sinuating wire between the two side walls of the bracelet, the unfolded length of this conductor being λ / 4, λ being the corresponding wavelength at the center frequency to be received.
Les caractéristiques et avantages de l'invention ressortiront d'ailleurs de la description qui va suivre, à titre d'exemple non limitatif, en référence aux figures annexées sur lesquelles :
- - la figure 1 illustre une vue schématique de dessus de l'antenne bracelet de l'invention ;
- - la figure 2 illustre une vue schématique en élévation de l'antenne bracelet de l'invention ;
- - les figures 3A et 3B illustrant deux vues de détail de la figure 2 ;
- - les figures 4 et 5 illustrent deux vues schématiques en élévation d'une variante de l'antenne bracelet de l'invention.
- - Figure 1 illustrates a schematic top view of the wrist antenna of the invention;
- - Figure 2 illustrates a schematic elevational view of the wrist antenna of the invention;
- - Figures 3A and 3B illustrating two detailed views of Figure 2;
- - Figures 4 and 5 illustrate two schematic elevational views of a variant of the wrist antenna of the invention.
Les figures 1 et 2 représentent une montre 10 constituée d'un boîtier 11 et d'un bracelet, par exemple formé de deux parties 12 et 13. Un récepteur 14 est disposé dans le boîtier 11. Une partie 15 du boîtier 11, proche du fond 23 de celui-ci, forme la masse du récepteur 14.Figures 1 and 2 show a
L'antenne bracelet de l'invention comprend au moins un premier conducteur métallique 16 disposé à proximité de la surface externe 17 du bracelet 12, du côté du dessus 18 du boîtier 11.The inventive bracelet antenna comprises at least a first
Ce premier conducteur 16 est relié à l'entrée du récepteur 14. Il a la forme d'un fil sinuant entre les deux parois latérales 20 et 21 du bracelet 12. On parlera ultérieurement d'une structure en "zig-zag". Ce fil a une longueur dépliée de l'ordre de λ /4 ; λ étant la longueur d'onde correspondant à la fréquence centrale du signal à recevoir.This
L'antenne bracelet peut comporter également un second conducteur 22 relié à la masse du récepteur 14. Ce deuxième conducteur 22 peut avoir la forme d'un film disposé à proximité de la surface interne 19 du bracelet située du côté du fond 23 du boîtier 11.The bracelet antenna may also include a
Sur les figures 1 et 2 chacun des deux conducteurs 16 et 22 est disposé respectivement à l'intérieur de l'une des deux parties 12 et 13 du bracelet.In Figures 1 and 2 each of the two
Les figures 1 et 2 de l'invention ne sont que des figures schématiques. Ainsi, pour plus de clarté, la proximité du premier et du second conducteurs avec respectivement la face externe et la face interne du bracelet, qui n'apparaît pas clairement, vu la faible épaisseur du bracelet, sur ces deux figures 1 et 2, est mise en valeur sur les figures 3A et 3B.Figures 1 and 2 of the invention are only schematic figures. Thus, for greater clarity, the proximity of the first and second conductors respectively to the external face and the internal face of the bracelet, which does not appear clearly, given the thin thickness of the bracelet, in these two figures 1 and 2, is highlighted in Figures 3A and 3B.
Cette antenne bracelet se comporte comme une antenne à deux brins, ou comme un dipôle intégré au bracelet, de longueur électrique équivalente égale à λ /2.This bracelet antenna behaves like a two-strand antenna, or like a dipole integrated into the bracelet, of equivalent electrical length equal to λ / 2.
La montre non portée réagit donc comme un dipôle.The unworn watch therefore reacts like a dipole.
Lorsque la montre est fixée au poignet de l'utilisateur, le fond du boîtier, ou le deuxième brin 13 du bracelet, assure la mise à la masse du récepteur. L'autre brin 12, dont le dipôle est surélevé d'un peu moins que l'épaisseur du bracelet, réalise un condensateur captant le champ radial autour du bras.When the watch is attached to the user's wrist, the bottom of the case, or the
Le dipôle est réalisé, au moins en partie, par la structure en "zig-zag" permettant une intégration de la self d'accord de l'antenne dans le brin lui-même.The dipole is produced, at least in part, by the "zig-zag" structure allowing integration of the tuning choke of the antenna in the strand itself.
Le deuxième conducteur 22 peut lui aussi avoir une structure en "zig-zag" comme représenté par le premier connecteur. Dans ce cas, il a également une longueur dépliée de λ /4.The
La réalisation d'un conducteur en "zig-zag" se fait par fil noyé ou ruban d'une forme assurant la flexion, ou par un circuit imprimé sur film souple glissant librement dans une rainure du bracelet. L'antenne peut également être réalisée avec des conducteurs noyés au moulage, leur forme assurant la souplesse du bracelet.The realization of a conductor in "zig-zag" is done by embedded wire or ribbon of a shape ensuring the bending, or by a printed circuit on flexible film sliding freely in a groove of the bracelet. The antenna can also be produced with conductors embedded in the molding, their shape ensuring the flexibility of the bracelet.
Ainsi le second conducteur 22 relié au fond du boïtier métallique (isolé ou non) est destiné a assurer en complément du boîtier, la prise du potentiel du bras.Thus the
Le fond 23 du boîtier de la montre récepteur assure, en effet, une liaison galvanique ou capacitive avec le porteur par l'intermédiaire d'une large surface conductrice recouverte ou non par un revêtement isolant de faible épaisseur.The
Le premier conducteur 16 assure une fonction complexe selon le degré de serrage du bracelet et le degré de sudation du porteur.The
On peut schématiser le fonctionnement dans deux cas extrêmes : - Si le bracelet est peu serré, ou si le porteur a une peau très sèche, l'ensemble des deux conducteurs 16 et 22 constitue toujours un dipôle comme en espace libre, le poignet se comportant comme un isolant à perte ramenant capacité et conductance qui amortissent l'antenne sans compromettre son fonctionnement. Elle est ainsi peu dépendante de la longueur utilisée du bracelet qui est fonction du diamètre du poignet. La polarisation principale est alors dans le sens du bracelet.
- Si le bracelet est porté très serré, ou si le sujet porteur est très potelé ou a une peau très acide et sujette à transpiration, on peut alors assimiler le poignet à un cylindre conducteur. Celui-ci a tendance à court-circuiter les deux brins ou conducteurs de l'antenne vue comme un dipôle. C'est alors que la dissymétrie de construction des deux parties 12 et 13 du bracelet permet de garder de l'efficacité à l'antenne. Le conducteur 22 le plus près de la peau, combiné au fond de boîtier, assure la prise de référence au potentiel du poignet (une terre en quelque sorte). Le conducteur 16 éloigné de la peau par l'épaisseur du bracelet réalise une antenne capacitive (de hauteur effective à peu près égale à l'épaisseur du bracelet) assurant la captation du champ radial autour du poignet. Ceci est l'effet souhaité, car le champ autour d'un conducteur cylindrique ne peut être que radial. L'inductance réalisée sur le bracelet compense alors le terme capacitif.We can schematize the operation in two extreme cases: - If the bracelet is loosely tightened, or if the wearer has very dry skin, the set of two
- If the bracelet is worn very tight, or if the wearer is very chubby or has a very acid skin and prone to perspiration, we can then assimilate the wrist to a conductive cylinder. It tends to short-circuit the two strands or conductors of the antenna seen as a dipole. It is then that the asymmetry of construction of the two
Une variante de l'invention, qui augmente son efficacité, consiste à utiliser, comme représenté à la figure 4, la partie supérieure 24 du boîtier 11, en forme par exemple de couronne métallique isolée du fond du boîtier, pour augmenter la hauteur effective moyenne de l'antenne bracelet.A variant of the invention, which increases its efficiency, consists in using, as shown in FIG. 4, the upper part 24 of the
L'efficacité de l'antenne en comportement radial est augmentée avec une longueur suffisante des deux conducteurs 16 et 22, comme représenté à la figure 5, par la doublement d'épaisseur 27 au bouclage du bracelet et la saillie normale 25 qu'effectue l'extrémité d'une partie 12 du bracelet après passage dans le passant 26.The efficiency of the antenna in radial behavior is increased with a sufficient length of the two
Une antenne bracelet réalisée sur film Kapton selon l'invention, à 450 MHz, permet d'obtenir un gain optimum situé à - 15dB par rapport au dipole λ/2 pour le bracelet porté au poignet. Ce gain est, bien entendu fonction de la direction de mesure et des multiples attitudes que peut adopter le porteur du bracet.A bracelet antenna produced on Kapton film according to the invention, at 450 MHz, makes it possible to obtain an optimum gain located at - 15dB compared to the λ / 2 dipole for the bracelet worn on the wrist. This gain is, of course, a function of the direction of measurement and of the multiple attitudes that the wearer of the bracet can adopt.
Le bracelet déployé et non porté donne un gain de -15dB également avec un rayonnement ommidirectionnel par rapport à l'axe électrique de l'antenne.The deployed and unworn bracelet gives a gain of -15dB also with ommidirectional radiation relative to the electrical axis of the antenna.
Il est bien entendu que la présente invention n'a été décrite et représentée qu'à titre d'exemple préférentiel et que l'on pourra remplacer ses éléments constitutifs par des éléments équivalents sans, pour autant, sortir du cadre de l'invention.It is understood that the present invention has only been described and shown as a preferred example and that its constituent elements can be replaced by equivalent elements without, however, departing from the scope of the invention.
Ainsi le bracelet 12, 13 peut être réalisé en un seul tenant, ce peut être par exemple un bracelet élastique.Thus the
Les dispositifs d'interconnection du bracelet au boîtier, connus de l'homme de l'art, n'ont pas été décrits : ce peut être, par exemple, des contacts électriques réalisés par l'intermédiaire de barrettes, de liaisons souples par film soudé ou serti.The interconnection devices of the bracelet to the case, known to those skilled in the art, have not been described: this may be, for example, electrical contacts produced by means of bars, flexible connections by film soldered or crimped.
Claims (10)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8713265 | 1987-09-25 | ||
| FR8713265A FR2621178B1 (en) | 1987-09-25 | 1987-09-25 | BRACELET ANTENNA FOR A RADIO RECEIVER INTEGRATED IN A WATCH |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0308935A1 true EP0308935A1 (en) | 1989-03-29 |
| EP0308935B1 EP0308935B1 (en) | 1992-02-19 |
Family
ID=9355217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP88115606A Expired - Lifetime EP0308935B1 (en) | 1987-09-25 | 1988-09-22 | Antenna bracelet for a radio receiver incorporated in a watch |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0308935B1 (en) |
| DE (1) | DE3868469D1 (en) |
| ES (1) | ES2029508T3 (en) |
| FR (1) | FR2621178B1 (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990014721A1 (en) * | 1989-05-15 | 1990-11-29 | Telesia S.P.A. | Portable personal reception and display device for information transmitted via radio, combined with a watch |
| EP0443491A1 (en) * | 1990-02-20 | 1991-08-28 | Nippon Telegraph And Telephone Corporation | Wrist watch type receiver |
| US5168281A (en) * | 1990-05-16 | 1992-12-01 | Seiko Epson Corporation | Antenna connection device for electronic equipment |
| US5243356A (en) * | 1988-08-05 | 1993-09-07 | Seiko Epson Corporation | Antenna circuit and wrist radio instrument |
| GB2382722A (en) * | 2001-11-19 | 2003-06-04 | Psion Digital Ltd | Portable radio device with antenna contained in headphone lead |
| US7151496B2 (en) | 2003-09-03 | 2006-12-19 | Asulab S.A. | Patch antenna integrated in a wristwatch |
| GB2494922A (en) * | 2011-09-26 | 2013-03-27 | Antenova Ltd | External and flexible groundplane extensions for antennas |
| WO2014107158A1 (en) * | 2013-01-04 | 2014-07-10 | Evado Filip Holding Ltd. | Band with an antenna for use with a wireless electronic device |
| KR20150055989A (en) * | 2013-11-14 | 2015-05-22 | 삼성전기주식회사 | Portable terminal, charging device, and charging structure thereof |
| CN105428781A (en) * | 2014-09-15 | 2016-03-23 | 三星电子株式会社 | Electronic device |
| CN106558758A (en) * | 2016-11-28 | 2017-04-05 | 深圳众思科技有限公司 | Wearable device |
| CN107710631A (en) * | 2015-06-27 | 2018-02-16 | 英特尔公司 | Wearable antenna system |
| WO2022068799A1 (en) * | 2020-09-29 | 2022-04-07 | 维沃移动通信有限公司 | Wearable electronic device, antenna control method, and storage medium |
| WO2022068801A1 (en) * | 2020-09-29 | 2022-04-07 | 维沃移动通信有限公司 | Wearable electronic device, antenna control method, and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1019717B (en) * | 1956-01-03 | 1957-11-21 | Anton Kathrein Fabrik Elektrot | Shortened dipole |
| US3032651A (en) * | 1957-07-02 | 1962-05-01 | Gisiger-Stahli Josef | Wrist carried radio set |
| EP0125930A2 (en) * | 1983-05-17 | 1984-11-21 | Sinclair Research Limited | Strap assembly |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH073923B2 (en) * | 1985-02-06 | 1995-01-18 | 公人 堀江 | Band type antenna device |
| US4754285A (en) * | 1987-05-01 | 1988-06-28 | Timex Corporation | Expansion band antenna for a wristwatch application |
-
1987
- 1987-09-25 FR FR8713265A patent/FR2621178B1/en not_active Expired
-
1988
- 1988-09-22 DE DE8888115606T patent/DE3868469D1/en not_active Expired - Lifetime
- 1988-09-22 ES ES88115606T patent/ES2029508T3/en not_active Expired - Lifetime
- 1988-09-22 EP EP88115606A patent/EP0308935B1/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1019717B (en) * | 1956-01-03 | 1957-11-21 | Anton Kathrein Fabrik Elektrot | Shortened dipole |
| US3032651A (en) * | 1957-07-02 | 1962-05-01 | Gisiger-Stahli Josef | Wrist carried radio set |
| EP0125930A2 (en) * | 1983-05-17 | 1984-11-21 | Sinclair Research Limited | Strap assembly |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN, vol. 11, no. 4 (E-468)[2451], 7 janvier 1987; & JP-A-61 181 203 (KIMITO HORIE) 13-08-1986 * |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5243356A (en) * | 1988-08-05 | 1993-09-07 | Seiko Epson Corporation | Antenna circuit and wrist radio instrument |
| WO1990014721A1 (en) * | 1989-05-15 | 1990-11-29 | Telesia S.P.A. | Portable personal reception and display device for information transmitted via radio, combined with a watch |
| EP0443491A1 (en) * | 1990-02-20 | 1991-08-28 | Nippon Telegraph And Telephone Corporation | Wrist watch type receiver |
| US5136303A (en) * | 1990-02-20 | 1992-08-04 | Nippon Telegraph And Telephone Corporation | Wrist watch type receiver |
| US5168281A (en) * | 1990-05-16 | 1992-12-01 | Seiko Epson Corporation | Antenna connection device for electronic equipment |
| GB2382722A (en) * | 2001-11-19 | 2003-06-04 | Psion Digital Ltd | Portable radio device with antenna contained in headphone lead |
| GB2382722B (en) * | 2001-11-19 | 2004-06-02 | Psion Digital Ltd | Antenna for a portable radio device |
| US7151496B2 (en) | 2003-09-03 | 2006-12-19 | Asulab S.A. | Patch antenna integrated in a wristwatch |
| GB2494922A (en) * | 2011-09-26 | 2013-03-27 | Antenova Ltd | External and flexible groundplane extensions for antennas |
| WO2014107158A1 (en) * | 2013-01-04 | 2014-07-10 | Evado Filip Holding Ltd. | Band with an antenna for use with a wireless electronic device |
| KR20150055989A (en) * | 2013-11-14 | 2015-05-22 | 삼성전기주식회사 | Portable terminal, charging device, and charging structure thereof |
| CN105428781A (en) * | 2014-09-15 | 2016-03-23 | 三星电子株式会社 | Electronic device |
| EP3001500A3 (en) * | 2014-09-15 | 2016-04-06 | Samsung Electronics Co., Ltd. | Electronic device |
| US9786982B2 (en) | 2014-09-15 | 2017-10-10 | Samsung Electronics Co., Ltd. | Electronic device |
| CN107710631A (en) * | 2015-06-27 | 2018-02-16 | 英特尔公司 | Wearable antenna system |
| EP3314770A4 (en) * | 2015-06-27 | 2019-02-20 | INTEL Corporation | Wearable antenna system |
| CN107710631B (en) * | 2015-06-27 | 2021-03-12 | 英特尔公司 | Wearable antenna system |
| CN106558758A (en) * | 2016-11-28 | 2017-04-05 | 深圳众思科技有限公司 | Wearable device |
| WO2022068799A1 (en) * | 2020-09-29 | 2022-04-07 | 维沃移动通信有限公司 | Wearable electronic device, antenna control method, and storage medium |
| WO2022068801A1 (en) * | 2020-09-29 | 2022-04-07 | 维沃移动通信有限公司 | Wearable electronic device, antenna control method, and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2029508T3 (en) | 1992-08-16 |
| FR2621178A1 (en) | 1989-03-31 |
| EP0308935B1 (en) | 1992-02-19 |
| DE3868469D1 (en) | 1992-03-26 |
| FR2621178B1 (en) | 1989-12-01 |
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