DE69925394D1 - Verfahren zum Identifizieren von in einem Untersuchungsbereich präsentierten elektronischen Karten - Google Patents

Verfahren zum Identifizieren von in einem Untersuchungsbereich präsentierten elektronischen Karten

Info

Publication number
DE69925394D1
DE69925394D1 DE69925394T DE69925394T DE69925394D1 DE 69925394 D1 DE69925394 D1 DE 69925394D1 DE 69925394 T DE69925394 T DE 69925394T DE 69925394 T DE69925394 T DE 69925394T DE 69925394 D1 DE69925394 D1 DE 69925394D1
Authority
DE
Germany
Prior art keywords
electronic cards
examination area
identifying electronic
cards presented
presented
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.)
Expired - Lifetime
Application number
DE69925394T
Other languages
English (en)
Inventor
Jean-Marie Gaultier
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.)
STMicroelectronics SA
Original Assignee
STMicroelectronics SA
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 STMicroelectronics SA filed Critical STMicroelectronics SA
Application granted granted Critical
Publication of DE69925394D1 publication Critical patent/DE69925394D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10019—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers.
    • G06K7/10029—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the time domain, e.g. using binary tree search or RFID responses allocated to a random time slot
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/20—Individual registration on entry or exit involving the use of a pass
    • G07C9/28—Individual registration on entry or exit involving the use of a pass the pass enabling tracking or indicating presence
DE69925394T 1998-02-04 1999-02-03 Verfahren zum Identifizieren von in einem Untersuchungsbereich präsentierten elektronischen Karten Expired - Lifetime DE69925394D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9801309A FR2774495B1 (fr) 1998-02-04 1998-02-04 Procede d'identification de cartes electroniques presentes dans une zone d'investigation

Publications (1)

Publication Number Publication Date
DE69925394D1 true DE69925394D1 (de) 2005-06-30

Family

ID=9522599

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69925394T Expired - Lifetime DE69925394D1 (de) 1998-02-04 1999-02-03 Verfahren zum Identifizieren von in einem Untersuchungsbereich präsentierten elektronischen Karten

Country Status (4)

Country Link
US (1) US6469618B1 (de)
EP (1) EP0935222B1 (de)
DE (1) DE69925394D1 (de)
FR (1) FR2774495B1 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2809515B1 (fr) * 2000-05-25 2002-08-30 Gemplus Card Int Procede de detection d'emissions simultanees d'etiquettes electroniques
US6774766B1 (en) 2000-07-21 2004-08-10 E-Tag Systems, Inc. Method for efficiently querying and identifying multiple items on a communication channel
US6725014B1 (en) * 2000-08-17 2004-04-20 Honeywell International, Inc. Method and system for contention resolution in radio frequency identification systems
US6727803B2 (en) * 2001-03-16 2004-04-27 E-Tag Systems, Inc. Method and apparatus for efficiently querying and identifying multiple items on a communication channel
FR2823339A1 (fr) * 2001-04-04 2002-10-11 St Microelectronics Sa Circuit integre sans contact comprenant un circuit anticollision a logique cablee
JP4023308B2 (ja) * 2002-12-17 2007-12-19 ソニー株式会社 通信装置および通信方法
ES2346888T3 (es) * 2003-12-09 2010-10-21 Intelleflex Corporation Circuito de activacion de bateria.
US6966734B2 (en) * 2004-04-23 2005-11-22 Toteff Thomas S Dual purpose track for holding wheel chocks and strap clips to tie down dirt bikes to trailers
KR101059872B1 (ko) 2005-01-03 2011-08-29 삼성전자주식회사 고유 식별자를 이용한 통신충돌방지 프로토콜
US7274284B2 (en) * 2005-02-04 2007-09-25 Atmel Corporation Method for RF card detection in a contactless system
US7604178B2 (en) * 2005-05-11 2009-10-20 Intelleflex Corporation Smart tag activation
US20070001812A1 (en) * 2005-06-30 2007-01-04 Symbol Technologies, Inc. Systems and methods for optimizing communications between an RFID reader and a tag population using partial binary tree traversal
US8248211B2 (en) 2005-07-20 2012-08-21 Intelleflex Corporation Selective RF device activation
US8548098B2 (en) 2005-12-15 2013-10-01 Intelleflex Corporation Clock-free activation circuit
US20090102610A1 (en) * 2007-10-22 2009-04-23 The Stanley Works Rfid antenna selection system and method
KR100936893B1 (ko) * 2008-01-04 2010-01-14 중앙대학교 산학협력단 태그 인식 방법, 충돌 방지 방법 및 이를 이용한 ｒｆｉｄ태그
NL2009537C2 (en) * 2012-09-28 2014-03-31 Roel Ryan Snel Method of controlling a plurality of mobile transceivers scattered throughout a transceiver field.

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4071908A (en) * 1977-03-17 1978-01-31 Bell Telephone Laboratories, Incorporated Adaptive polling technique
EP0285419B1 (de) * 1987-03-31 1994-08-24 Identec Limited Zugangskontrolleinrichtung
SE464946B (sv) * 1989-11-10 1991-07-01 Philips Norden Ab Oeverfoeringssystem innefattande en fraagestation och ett antal svarsstationer
FR2671894A1 (fr) * 1991-01-18 1992-07-24 Gemplus Card Int Systeme de communication entre une borne et des mobiles.
FR2677135B1 (fr) * 1991-05-28 1997-09-12 Commissariat Energie Atomique Systeme d'identification automatique d'objets ou d'individus par interrogation a distance
JP2877594B2 (ja) * 1991-11-14 1999-03-31 富士通株式会社 入場者管理システム
US5539394A (en) * 1994-03-16 1996-07-23 International Business Machines Corporation Time division multiplexed batch mode item identification system
US5489908A (en) * 1994-07-27 1996-02-06 Texas Instruments Deutschland Gmbh Apparatus and method for identifying multiple transponders
US5602538A (en) * 1994-07-27 1997-02-11 Texas Instruments Incorporated Apparatus and method for identifying multiple transponders
FR2741979B1 (fr) * 1995-12-01 1998-01-23 Raimbault Pierre Procede d'interrogation a distance d'etiquettes station et etiquette pour sa mise en oeuvre
US5856788A (en) * 1996-03-12 1999-01-05 Single Chips Systems Corp. Method and apparatus for radiofrequency identification tags
US5986570A (en) * 1997-09-03 1999-11-16 Micron Communications, Inc. Method for resolving signal collisions between multiple RFID transponders in a field

Also Published As

Publication number Publication date
FR2774495B1 (fr) 2000-09-22
US6469618B1 (en) 2002-10-22
EP0935222A1 (de) 1999-08-11
FR2774495A1 (fr) 1999-08-06
EP0935222B1 (de) 2005-05-25

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Legal Events

Date Code Title Description
8332 No legal effect for de