EP2260436A1 - Rfid tag apparatus for controlling of identification distance and method of operating rfid information using the apparatus - Google Patents

Rfid tag apparatus for controlling of identification distance and method of operating rfid information using the apparatus

Info

Publication number
EP2260436A1
EP2260436A1 EP08873066A EP08873066A EP2260436A1 EP 2260436 A1 EP2260436 A1 EP 2260436A1 EP 08873066 A EP08873066 A EP 08873066A EP 08873066 A EP08873066 A EP 08873066A EP 2260436 A1 EP2260436 A1 EP 2260436A1
Authority
EP
European Patent Office
Prior art keywords
rfid
antenna
rfid tag
switch
length
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.)
Withdrawn
Application number
EP08873066A
Other languages
German (de)
French (fr)
Other versions
EP2260436A4 (en
Inventor
Jun Seob Lee
Sang Keun Yoo
Eunsook Kim
Byoung Nam Lee
Yong-Woon Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electronics and Telecommunications Research Institute ETRI
Original Assignee
Electronics and Telecommunications Research Institute ETRI
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Electronics and Telecommunications Research Institute ETRI filed Critical Electronics and Telecommunications Research Institute ETRI
Publication of EP2260436A1 publication Critical patent/EP2260436A1/en
Publication of EP2260436A4 publication Critical patent/EP2260436A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/073—Special arrangements for circuits, e.g. for protecting identification code in memory
    • G06K19/07309—Means for preventing undesired reading or writing from or onto record carriers
    • G06K19/07345—Means for preventing undesired reading or writing from or onto record carriers by activating or deactivating at least a part of the circuit on the record carrier, e.g. ON/OFF switches
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/073—Special arrangements for circuits, e.g. for protecting identification code in memory
    • G06K19/07309—Means for preventing undesired reading or writing from or onto record carriers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
    • H01Q1/2225—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H04B5/77—

Definitions

  • the present invention relates to a radio frequency identification (RFID) tag apparatus for controlling of identification distance and a method of operating RFID information using the apparatus. More particularly, the present invention relates to an RFID tag apparatus that enables a user to determine whether to transmit RFID information by adjusting a length of an antenna connected with an RFID chip using a switch, and a method of operating RFID information using the apparatus.
  • RFID radio frequency identification
  • RFID radio frequency identification
  • An integrated circuit (IC) chip and an antenna are embedded in the RFID tag.
  • a memory device of the chip includes a storage to store an identification (ID) code and other data, and a storage to receive a signal from a reader and send data stored in the tag.
  • ID identification
  • a storage to receive a signal from a reader and send data stored in the tag.
  • the existing tag identification distance controlling method reduces identification distance of an RFID tag by shortening an antenna of the RFID tag to thereby prevent others from easily reading the RFID tag.
  • An aspect of the present invention provides a method of controlling identification distance of a radio frequency identification (RFID) tag by adjusting a length of an antenna of an RFID tag.
  • RFID radio frequency identification
  • Another aspect of the present invention also provides an RFID tag apparatus that can variously set an antenna of an RFID tag using a plurality of switches.
  • Another aspect of the present invention also provides a private information protection service that can adjust a length of an antenna of an RFID tag to thereby set a portable RFID tag of a user to not be identified by an external RFID reader in an environment undesired by the user.
  • a radio frequency identification (RFID) tag apparatus for controlling of identification distance, the apparatus including: a RFID tag chip storing RFID information; an antenna extracting the RFID information from the RFID tag chip to transmit the extracted RFID information to an RFID reader; and a switch setting the length of the antenna to determine whether to transmit the RFID information.
  • RFID radio frequency identification
  • the RFID reader when the switch sets the length of the antenna to be short, the RFID reader is incapable of receiving the RFID information stored in the RFID tag chip. Also, when the switch sets the length of the antenna to be long, the RFID reader is capable of receiving the RFID information stored in the RFID tag chip.
  • each of at least one switch may variably set the length of the antenna in a state where the at least one switch is combined with the antenna.
  • a method of operating RFID information using an RFID tag apparatus for controlling of identification distance including: setting the length of an antenna connected with an RFID tag chip using a switch; and transmitting, depending on the set length of the antenna, RFID information stored in the RFID tag chip to an RFID reader.
  • the RFID reader when the switch sets the length of the antenna to be short, the RFID reader is incapable of receiving the RFID information stored in the RFID tag chip. Also, when the switch sets the length of the antenna to be long, the RFID reader is capable of receiving the RFID information stored in the RFID tag chip.
  • each of at least one switch may variably set the length of the antenna in a state where the at least one switch is combined with the antenna.
  • a method that may control identification distance of a radio frequency identification (RFID) tag by adjusting a length of an antenna of an RFID tag.
  • RFID radio frequency identification
  • an RFID tag apparatus that may variously set an antenna of an RFID tag using a plurality of switches.
  • FIG. 1 is a simplified diagram illustrating a configuration of a radio frequency identification (RFID) tag apparatus for controlling of identification distance according to an embodiment of the present invention
  • FIG. 2 illustrates an example of adjusting a length of an antenna using a switch according to an embodiment of the present invention
  • FIG. 3 illustrates an example of applying an RFID tag apparatus for controlling of identification distance to a mobile communication terminal according to an embodiment of the present invention
  • FIG. 4 is a simplified diagram illustrating a configuration of an RFID tag apparatus for controlling of identification distance according to another embodiment of the present invention.
  • FIG. 5 illustrates a first example of operating an RFID tag apparatus for controlling of identification distance with a plurality of switches according to another embodiment of the present invention
  • FIG. 6 illustrates a second example of operating an RFID tag apparatus for controlling of identification distance with a plurality of switches according to another embodiment of the present invention.
  • FIG. 7 is a flowchart illustrating a method of operating RFID information using an
  • FIG. 1 is a simplified diagram illustrating a configuration of a radio frequency identification (RFID) tag apparatus for controlling of identification distance according to an embodiment of the present invention.
  • RFID radio frequency identification
  • the RFID tag apparatus for controlling of identification distance may adjust, using a switch, a length of an antenna that is connected from a game server to an RFID tag chip to thereby enable a user to arbitrarily set an ID of RFID information.
  • the present invention includes an RFID tag chip 100, an antenna 200, and a switch
  • the RFID tag chip 100 may store RFID information of an RFID tag attached to a product or an object.
  • the RFID tag chip 100 may transmit corresponding information via the antenna 200.
  • the RFID tag chip 100 functions as a storage to store RFID information corresponding to unique ID information of the object and also functions as a controller to transmit corresponding information.
  • the antenna 200 may extract the RFID information from the RFID tag chip 100 to transmit the extracted RFID information to an RFID reader.
  • a length of the antenna 200 may be variably set using the switch 300.
  • a particular service may be provided to the mobile communication terminal of a user.
  • the RFID reader may identify all the RFID tags around the RFID reader.
  • an RFID tag embedded in a mobile phone of the user may be identified.
  • a user controls the switch 300 to thereby set the length of the antenna 200 to be short, it is possible to prevent the RFID tag of the user from being identified in an undesired situation of the user.
  • the user when a user desires and voluntarily submits to an RFID tag of the user to be identified by an external RFID reader, the user may control the switch 300 to thereby set the length of the antenna 200 to be long, so that the external RFID reader may readily read the RFID tag.
  • FIG. 2 illustrates an example of adjusting a length of an antenna 200 using a switch
  • the RFID reader may not receive RFID information stored in the RFID tag chip 100.
  • the user may set the length of the antenna 200 to be long using the switch 300 as shown in FIG. 1. Through this, the user may reset the RFID reader to receive RFID information stored in the RFID tag chip 100.
  • FIG. 3 illustrates an example of applying an RFID tag apparatus for controlling of identification distance to a mobile communication terminal according to an embodiment of the present invention.
  • the RFID tag chip 100 according to the present invention may be applicable to the mobile communication terminal, but the present invention is not limited thereto. Specifically, the present invention may be applicable to all the identification apparatuses using the RFID tag.
  • the RFID tag chip according to the present invention may be packaged into any one of a metal case and a plastic case.
  • a method of operating RFID information using the RFID tag apparatus for controlling of identification distance may be applicable to a case where the RFID tag is inserted into a mobile phone and to a case where the RFID tag is packaged into any one of the metal case and the plastic case.
  • FIG. 4 is a simplified diagram illustrating a configuration of an RFID tag apparatus for controlling of identification distance according to another embodiment of the present invention.
  • FIG. 5 illustrates a first example of operating an RFID tag apparatus for controlling of identification distance with a plurality of switches according to an embodiment of the present invention.
  • FIG. 6 illustrates a second example of operating an RFID tag apparatus for controlling identification distance with a plurality of switches according to an embodiment of the present invention.
  • the method may be performed by the RFID tag apparatus for controlling of identification distance and thus include all the functional elements of the RFID tag apparatus. Therefore, detailed descriptions related thereto will be omitted or will be briefly described.
  • FIG. 7 is a flowchart illustrating a method of operating RFID information using an
  • RFID tag apparatus for controlling of identification distance according to an embodiment of the present invention.
  • a length of the antenna 200 connected with the RFID tag chip 100 may be set using the switch 300.
  • the RFID tag chip 100 may determine the length of the antenna
  • the RFID tag chip 100 may transmit the RFID information to the RFID reader.
  • an identifiable range of the RFID information stored in the RFID tag chip 100 may be widely set and thus the RFID reader may identify corresponding information.
  • the identifiable range of the RFID information stored in the RFID tag chip 100 may be narrowly set and thus the RFID reader may not identify the corresponding information.
  • the exemplary embodiments of the present invention include computer-readable media including program instructions to implement various operations embodied by a computer.
  • the media may also include, alone or in combination with the program instructions, data files, data structures, tables, and the like.
  • the media and program instructions may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well known and available to those having skill in the computer software arts.
  • Examples of computer-readable media include magnetic media such as hard disks, floppy disks, and magnetic tape; optical media such as CD ROM disks; magneto-optical media such as floptical disks; and hardware devices that are specially configured to store and perform program instructions, such as read-only memory devices (ROM) and random access memory (RAM).
  • Examples of program instructions include both machine code, such as produced by a compiler, and files containing higher level code that may be executed by the computer using an interpreter.
  • the hardware device may be constructed to function as at least one software module, or vice versa.
  • a private information protection service may adjust a length of an antenna of an RFID tag to thereby set a portable RFID tag of a user to not be identified by an external RFID reader in an environment undesired by the user.

Abstract

A radio frequency identification (RFID) tag apparatus for controlling of identification distance, the apparatus including: a RFID tag chip storing RFID information; an antenna extracting the RFID information from the RFID tag chip to transmit the extracted RFID information to an RFID reader; and a switch setting the length of the antenna to determine whether to transmit the RFID information is provided.

Description

Description
RFID TAG APPARATUS FOR CONTROLLING OF IDENTIFICATION DISTANCE AND METHOD OF OPERATING RFID INFORMATION USING THE APPARATUS
Technical Field
[1] The present invention relates to a radio frequency identification (RFID) tag apparatus for controlling of identification distance and a method of operating RFID information using the apparatus. More particularly, the present invention relates to an RFID tag apparatus that enables a user to determine whether to transmit RFID information by adjusting a length of an antenna connected with an RFID chip using a switch, and a method of operating RFID information using the apparatus. Background Art
[2] Generally, a barcode has been used to simply identify a product or object. It was possible to identify the product or the object by scanning the barcode using a barcode reader.
[3] Currently, to replace the existing barcode, a radio frequency identification (RFID) tag embedded with a small chip containing various types of information associated with the product or the object and attached thereto is widely used. RFID information stored in the RFID tag may be used in a management system via an RFID reader, may be used in interoperation with various communication lines such as wired communication and satellite communication, and the like.
[4] An integrated circuit (IC) chip and an antenna are embedded in the RFID tag. A memory device of the chip includes a storage to store an identification (ID) code and other data, and a storage to receive a signal from a reader and send data stored in the tag.
[5] The existing tag identification distance controlling method reduces identification distance of an RFID tag by shortening an antenna of the RFID tag to thereby prevent others from easily reading the RFID tag.
[6] In the case of the above method, it is possible to reduce the tag identification distance, however, it is not possible to easily shorten the antenna and also is not possible to extend the tag identification distance again as necessary. Disclosure of Invention
Technical Problem
[7] An aspect of the present invention provides a method of controlling identification distance of a radio frequency identification (RFID) tag by adjusting a length of an antenna of an RFID tag.
[8] Another aspect of the present invention also provides an RFID tag apparatus that can variously set an antenna of an RFID tag using a plurality of switches.
[9] Another aspect of the present invention also provides a private information protection service that can adjust a length of an antenna of an RFID tag to thereby set a portable RFID tag of a user to not be identified by an external RFID reader in an environment undesired by the user. Technical Solution
[10] According to an aspect of the present invention, there is provided a radio frequency identification (RFID) tag apparatus for controlling of identification distance, the apparatus including: a RFID tag chip storing RFID information; an antenna extracting the RFID information from the RFID tag chip to transmit the extracted RFID information to an RFID reader; and a switch setting the length of the antenna to determine whether to transmit the RFID information.
[11] In this instance, when the switch sets the length of the antenna to be short, the RFID reader is incapable of receiving the RFID information stored in the RFID tag chip. Also, when the switch sets the length of the antenna to be long, the RFID reader is capable of receiving the RFID information stored in the RFID tag chip.
[12] Also, each of at least one switch may variably set the length of the antenna in a state where the at least one switch is combined with the antenna.
[13] According to another aspect of the present invention, there is provided a method of operating RFID information using an RFID tag apparatus for controlling of identification distance, the method including: setting the length of an antenna connected with an RFID tag chip using a switch; and transmitting, depending on the set length of the antenna, RFID information stored in the RFID tag chip to an RFID reader.
[14] In this instance, when the switch sets the length of the antenna to be short, the RFID reader is incapable of receiving the RFID information stored in the RFID tag chip. Also, when the switch sets the length of the antenna to be long, the RFID reader is capable of receiving the RFID information stored in the RFID tag chip.
[15] Also, each of at least one switch may variably set the length of the antenna in a state where the at least one switch is combined with the antenna.
Advantageous Effects
[16] According to the present invention, there is provided a method that may control identification distance of a radio frequency identification (RFID) tag by adjusting a length of an antenna of an RFID tag.
[17] Also, according to the present invention, there is provided an RFID tag apparatus that may variously set an antenna of an RFID tag using a plurality of switches. Brief Description of the Drawings
[18] FIG. 1 is a simplified diagram illustrating a configuration of a radio frequency identification (RFID) tag apparatus for controlling of identification distance according to an embodiment of the present invention;
[19] FIG. 2 illustrates an example of adjusting a length of an antenna using a switch according to an embodiment of the present invention;
[20] FIG. 3 illustrates an example of applying an RFID tag apparatus for controlling of identification distance to a mobile communication terminal according to an embodiment of the present invention;
[21] FIG. 4 is a simplified diagram illustrating a configuration of an RFID tag apparatus for controlling of identification distance according to another embodiment of the present invention;
[22] FIG. 5 illustrates a first example of operating an RFID tag apparatus for controlling of identification distance with a plurality of switches according to another embodiment of the present invention;
[23] FIG. 6 illustrates a second example of operating an RFID tag apparatus for controlling of identification distance with a plurality of switches according to another embodiment of the present invention; and
[24] FIG. 7 is a flowchart illustrating a method of operating RFID information using an
RFID tag apparatus for controlling of identification distance according to an embodiment of the present invention. Mode for the Invention
[25] Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. The embodiments are described below in order to explain the present invention by referring to the figures.
[26] FIG. 1 is a simplified diagram illustrating a configuration of a radio frequency identification (RFID) tag apparatus for controlling of identification distance according to an embodiment of the present invention.
[27] The RFID tag apparatus for controlling of identification distance according to the present invention may adjust, using a switch, a length of an antenna that is connected from a game server to an RFID tag chip to thereby enable a user to arbitrarily set an ID of RFID information.
[28] The present invention includes an RFID tag chip 100, an antenna 200, and a switch
300. Hereinafter, a configuration thereof will be described with reference to FIG. 1.
[29] As described above, the RFID tag chip 100 may store RFID information of an RFID tag attached to a product or an object. When an identifier requires the RFID in- formation using an RFID reader, the RFID tag chip 100 may transmit corresponding information via the antenna 200.
[30] Specifically, the RFID tag chip 100 functions as a storage to store RFID information corresponding to unique ID information of the object and also functions as a controller to transmit corresponding information.
[31] Also, the antenna 200 may extract the RFID information from the RFID tag chip 100 to transmit the extracted RFID information to an RFID reader. According to an aspect of the present invention, a length of the antenna 200 may be variably set using the switch 300.
[32] Specifically, according to an aspect of the present invention, it is possible to set whether to transmit the RFID information using the switch 300, which is determined by switching on or off the switch 300 coupled with the antenna 200. It is possible to adjust the length of the antenna 200 depending on on/off of the switch 300.
[33] For example, when identifying an RFID tag using an RFID reader by embedding the
RFID tag in an existing mobile communication terminal, a particular service may be provided to the mobile communication terminal of a user. In this instance, the RFID reader may identify all the RFID tags around the RFID reader.
[34] Although undesired by a user, an RFID tag embedded in a mobile phone of the user may be identified. However, according to an aspect of the present invention, in order to prevent the above event, when a user controls the switch 300 to thereby set the length of the antenna 200 to be short, it is possible to prevent the RFID tag of the user from being identified in an undesired situation of the user.
[35] Also, according to an aspect of the present invention, when a user desires and voluntarily submits to an RFID tag of the user to be identified by an external RFID reader, the user may control the switch 300 to thereby set the length of the antenna 200 to be long, so that the external RFID reader may readily read the RFID tag.
[36] FIG. 2 illustrates an example of adjusting a length of an antenna 200 using a switch
300 according to an embodiment of the present invention.
[37] Specifically, as shown in FIG. 2, when the length of the antenna 200 is set to be short using the switch 300, the RFID reader may not receive RFID information stored in the RFID tag chip 100.
[38] Also, when the user desires the RFID information to be identified, the user may set the length of the antenna 200 to be long using the switch 300 as shown in FIG. 1. Through this, the user may reset the RFID reader to receive RFID information stored in the RFID tag chip 100.
[39] FIG. 3 illustrates an example of applying an RFID tag apparatus for controlling of identification distance to a mobile communication terminal according to an embodiment of the present invention. [40] As shown in FIG. 3, the RFID tag chip 100 according to the present invention may be applicable to the mobile communication terminal, but the present invention is not limited thereto. Specifically, the present invention may be applicable to all the identification apparatuses using the RFID tag.
[41] Also, the RFID tag chip according to the present invention may be packaged into any one of a metal case and a plastic case. Specifically, a method of operating RFID information using the RFID tag apparatus for controlling of identification distance may be applicable to a case where the RFID tag is inserted into a mobile phone and to a case where the RFID tag is packaged into any one of the metal case and the plastic case.
[42] Also, according to an aspect of the present invention, it is possible to install a plurality of switches 300 in the antenna 200 and thereby variously set identification distance of RFID information.
[43] FIG. 4 is a simplified diagram illustrating a configuration of an RFID tag apparatus for controlling of identification distance according to another embodiment of the present invention.
[44] Specifically, as shown in FIG. 4, it is possible to couple at least one switch 300 with the antenna 200 and variably adjust the length of the antenna 200 using each of the at least one switch 300.
[45] FIG. 5 illustrates a first example of operating an RFID tag apparatus for controlling of identification distance with a plurality of switches according to an embodiment of the present invention. FIG. 6 illustrates a second example of operating an RFID tag apparatus for controlling identification distance with a plurality of switches according to an embodiment of the present invention.
[46] For example, as shown in FIG. 5, it is possible to switch off a first switch 310 among the first switch 310, a second switch 320, and a third switch 330 and identify a distance corresponding thereto, and thereby set an identifiable range of RFID information. Also, as shown in FIG. 6, it is possible to switch off the second switch 320 and identify a distance corresponding thereto and thereby set the identifiable range of RFID information.
[47] As described above, according to an the present invention, there is provided a method of operating RFID information that can set an identifiable range of RFID information using an RFID tag apparatus for controlling of identification distance. Hereinafter, the method will be described with reference to FIG. 7 by considering a functional aspect of the RFID tag apparatus for controlling of identification distance.
[48] The method may be performed by the RFID tag apparatus for controlling of identification distance and thus include all the functional elements of the RFID tag apparatus. Therefore, detailed descriptions related thereto will be omitted or will be briefly described.
[49] FIG. 7 is a flowchart illustrating a method of operating RFID information using an
RFID tag apparatus for controlling of identification distance according to an embodiment of the present invention.
[50] In operation S710, a length of the antenna 200 connected with the RFID tag chip 100 may be set using the switch 300.
[51] According to an aspect of the present invention, it is possible to transmit RFID information stored in the RFID tag chip 100 to an RFID reader depending on the set length of the antenna 200.
[52] In operation S720, the RFID tag chip 100 may determine the length of the antenna
200. In operation S730, when the length of the antenna 200 is set to be long, the RFID tag chip 100 may transmit the RFID information to the RFID reader.
[53] Specifically, when the length of the antenna 200 is set to be long using the switch
300, an identifiable range of the RFID information stored in the RFID tag chip 100 may be widely set and thus the RFID reader may identify corresponding information.
[54] In operation S740, when the length of the antenna 200 is not long, it is possible to block transmission of the RFID information to the RFID reader.
[55] Specifically, when the length of the antenna 200 is set to be short using the switch
300, the identifiable range of the RFID information stored in the RFID tag chip 100 may be narrowly set and thus the RFID reader may not identify the corresponding information.
[56] The exemplary embodiments of the present invention include computer-readable media including program instructions to implement various operations embodied by a computer. The media may also include, alone or in combination with the program instructions, data files, data structures, tables, and the like. The media and program instructions may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well known and available to those having skill in the computer software arts. Examples of computer-readable media include magnetic media such as hard disks, floppy disks, and magnetic tape; optical media such as CD ROM disks; magneto-optical media such as floptical disks; and hardware devices that are specially configured to store and perform program instructions, such as read-only memory devices (ROM) and random access memory (RAM). Examples of program instructions include both machine code, such as produced by a compiler, and files containing higher level code that may be executed by the computer using an interpreter. The hardware device may be constructed to function as at least one software module, or vice versa.
[57] Also, according to the present invention, there is provided a private information protection service that may adjust a length of an antenna of an RFID tag to thereby set a portable RFID tag of a user to not be identified by an external RFID reader in an environment undesired by the user. [58] Although a few embodiments of the present invention have been shown and described, the present invention is not limited to the described embodiments. Instead, it would be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

Claims
[I] A radio frequency identification (RFID) tag apparatus for controlling of identification distance, the apparatus comprising: a RFID tag chip storing RFID information; an antenna extracting the RFID information from the RFID tag chip to transmit the extracted RFID information to an RFID reader; and a switch setting the length of the antenna to determine whether to transmit the
RFID information. [2] The apparatus of claim 1, wherein, when the switch sets the length of the antenna to be short, the RFID reader is incapable of receiving the RFID information stored in the RFID tag chip. [3] The apparatus of claim 1, wherein, when the switch sets the length of the antenna to be long, the RFID reader is capable of receiving the RFID information stored in the RFID tag chip. [4] The apparatus of claim 1, wherein the RFID tag chip is an available chip for a mobile communication terminal. [5] The apparatus of claim 1, wherein the RFID tag chip is packaged into any one of a metal case and a plastic case. [6] The apparatus of claim 1, wherein each of at least one switch variably sets the length of the antenna in a state where the at least one switch is combined with the antenna.
[7] A method of operating RFID information using an RFID tag apparatus for controlling of identification distance, the method comprising: setting the length of an antenna connected with an RFID tag chip using a switch; and transmitting, depending on the set length of the antenna, RFID information stored in the RFID tag chip to an RFID reader. [8] The method of claim 7, wherein, when the switch sets the length of the antenna to be short, the RFID reader is incapable of receiving the RFID information stored in the RFID tag chip. [9] The method of claim 7, wherein, when the switch sets the length of the antenna to be long, the RFID reader is capable of receiving the RFID information stored in the RFID tag chip. [10] The method of claim 7, wherein each of at least one switch variably sets the length of the antenna in a state where the at least one switch is combined with the antenna.
[I I] The method of claim 7, wherein the RFID tag chip is an available chip for a mobile communication terminal.
[12] The method of claim 7, wherein the RFID tag chip is packaged into any one of a metal case and a plastic case.
EP08873066A 2008-03-05 2008-10-07 Rfid tag apparatus for controlling of identification distance and method of operating rfid information using the apparatus Withdrawn EP2260436A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020080020649A KR100963041B1 (en) 2008-03-05 2008-03-05 Apparatus for rfid tag by recognition distance regulation and method for rfid information operation in using the apparatus
PCT/KR2008/005878 WO2009110668A1 (en) 2008-03-05 2008-10-07 Rfid tag apparatus for controlling of identification distance and method of operating rfid information using the apparatus

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EP2260436A4 EP2260436A4 (en) 2011-10-19

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EP2260436A4 (en) 2011-10-19
KR100963041B1 (en) 2010-06-10
WO2009110668A1 (en) 2009-09-11
KR20090095361A (en) 2009-09-09

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