Nothing Special   »   [go: up one dir, main page]

ATE283517T1 - Verbessertes identifikationssystem - Google Patents

Verbessertes identifikationssystem

Info

Publication number
ATE283517T1
ATE283517T1 AT02024117T AT02024117T ATE283517T1 AT E283517 T1 ATE283517 T1 AT E283517T1 AT 02024117 T AT02024117 T AT 02024117T AT 02024117 T AT02024117 T AT 02024117T AT E283517 T1 ATE283517 T1 AT E283517T1
Authority
AT
Austria
Prior art keywords
reader
transponder
transponders
signal
identification system
Prior art date
Application number
AT02024117T
Other languages
English (en)
Inventor
Raymond Catherall Atkins
Mario Alphonso Marais
Zyl Smit Hendrik Van
Original Assignee
Btg Int Ltd
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
Priority claimed from GBGB9709741.4A external-priority patent/GB9709741D0/en
Priority claimed from GBGB9724185.5A external-priority patent/GB9724185D0/en
Application filed by Btg Int Ltd filed Critical Btg Int Ltd
Application granted granted Critical
Publication of ATE283517T1 publication Critical patent/ATE283517T1/de

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
    • G06K7/08—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
    • 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
    • G06K7/10316—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 using at least one antenna particularly designed for interrogating the wireless record carriers
    • G06K7/10346—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 using at least one antenna particularly designed for interrogating the wireless record carriers the antenna being of the far field type, e.g. HF types or dipoles
    • 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
    • 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
    • G06K7/10039—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 interrogator driven, i.e. synchronous
    • 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
    • G06K7/10059—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 transponder driven
    • 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
    • G06K7/10316—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 using at least one antenna particularly designed for interrogating the wireless record carriers
    • G06K7/10336—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 using at least one antenna particularly designed for interrogating the wireless record carriers the antenna being of the near field type, inductive coil

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Artificial Intelligence (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Near-Field Transmission Systems (AREA)
  • Communication Control (AREA)
  • Mobile Radio Communication Systems (AREA)
  • External Artificial Organs (AREA)
  • Vehicle Body Suspensions (AREA)
  • Transplanting Machines (AREA)
AT02024117T 1997-05-14 1998-05-14 Verbessertes identifikationssystem ATE283517T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9709741.4A GB9709741D0 (en) 1997-05-14 1997-05-14 Enhanced identification system
GBGB9724185.5A GB9724185D0 (en) 1997-11-14 1997-11-14 Enhanced identification system

Publications (1)

Publication Number Publication Date
ATE283517T1 true ATE283517T1 (de) 2004-12-15

Family

ID=26311531

Family Applications (3)

Application Number Title Priority Date Filing Date
AT98921613T ATE250781T1 (de) 1997-05-14 1998-05-14 Verbessertes identifikationssystem
AT04012409T ATE508425T1 (de) 1997-05-14 1998-05-14 Verbessertes identifikationssystem
AT02024117T ATE283517T1 (de) 1997-05-14 1998-05-14 Verbessertes identifikationssystem

Family Applications Before (2)

Application Number Title Priority Date Filing Date
AT98921613T ATE250781T1 (de) 1997-05-14 1998-05-14 Verbessertes identifikationssystem
AT04012409T ATE508425T1 (de) 1997-05-14 1998-05-14 Verbessertes identifikationssystem

Country Status (16)

Country Link
US (4) US6661336B1 (de)
EP (3) EP0983569B1 (de)
JP (1) JP4172727B2 (de)
KR (1) KR100525317B1 (de)
CN (1) CN1255994A (de)
AT (3) ATE250781T1 (de)
AU (1) AU745638B2 (de)
BR (1) BR9808714A (de)
CA (1) CA2289207A1 (de)
DE (3) DE69818454T2 (de)
DK (2) DK1280092T3 (de)
ES (2) ES2207833T3 (de)
IL (1) IL132297A (de)
NZ (1) NZ337966A (de)
RU (1) RU2238585C2 (de)
WO (1) WO1998052142A1 (de)

Families Citing this family (77)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE250781T1 (de) 1997-05-14 2003-10-15 Btg Int Ltd Verbessertes identifikationssystem
US6432050B1 (en) * 1997-12-30 2002-08-13 Remon Medical Technologies Ltd. Implantable acoustic bio-sensing system and method
FR2788858B1 (fr) * 1999-01-22 2001-03-02 Gemplus Card Int Maintien d'un canal avec anticollision dans un systeme d'identification electronique
FR2795542B1 (fr) * 1999-06-25 2001-10-12 Gemplus Card Int Procede d'identification d'etiquettes electroniques par rondes adaptatives
CN1248419C (zh) * 2000-06-12 2006-03-29 休普传感器控股有限责任公司 用于电子射频识别系统的读取器及其读取方法
KR100486754B1 (ko) * 2000-08-31 2005-05-03 매그나칩 반도체 유한회사 데이터 충돌을 방지한 무선주파수 식별 태그 시스템 및데이터 충돌 방지 방법
US7283874B2 (en) 2000-10-16 2007-10-16 Remon Medical Technologies Ltd. Acoustically powered implantable stimulating device
US20020180587A1 (en) * 2001-03-05 2002-12-05 Datamars Sa Method for communication with multiple transponders
FR2825226B1 (fr) * 2001-05-25 2008-02-01 Fabien Beckers Procede et systeme pour fournir des informations en relation avec la position occupee par un utilisateur dans un site
US6988667B2 (en) 2001-05-31 2006-01-24 Alien Technology Corporation Methods and apparatuses to identify devices
EP1288841A1 (de) 2001-08-30 2003-03-05 Motorola, Inc. Passives Antwort Kommunikationssystem
US7024188B2 (en) * 2001-09-14 2006-04-04 Telefonaktiebolaget L M Ericsson (Publ) Wireless communications system with detection of foreign radiation sources
US7193504B2 (en) * 2001-10-09 2007-03-20 Alien Technology Corporation Methods and apparatuses for identification
US7011250B2 (en) * 2001-12-20 2006-03-14 Matsushita Electric Industrial Co., Ltd. IC card reader/writer, identification method and program
US7009495B2 (en) * 2002-10-02 2006-03-07 Battelle Memorial Institute System and method to identify multiple RFID tags
US7019617B2 (en) * 2002-10-02 2006-03-28 Battelle Memorial Institute Radio frequency identification devices, backscatter communication device wake-up methods, communication device wake-up methods and a radio frequency identification device wake-up method
US6995655B2 (en) * 2002-10-02 2006-02-07 Battelle Memorial Institute Method of simultaneously reading multiple radio frequency tags, RF tags, and RF reader
SI21392A (sl) * 2002-12-24 2004-06-30 Vinko Kunc Postopek za avtomatsko nastavitev ojačenja izpraševalnikovega sprejemnika v brezkontaktnem identifikacijskem sistemu
US7005965B2 (en) * 2003-02-14 2006-02-28 Winbond Electronics Corporation Radio frequency identification device
JP2004260708A (ja) * 2003-02-27 2004-09-16 Mitsumi Electric Co Ltd 通信システム及び通信装置
US7019650B2 (en) 2003-03-03 2006-03-28 Caducys, L.L.C. Interrogator and interrogation system employing the same
US8542717B2 (en) 2003-03-03 2013-09-24 Veroscan, Inc. Interrogator and interrogation system employing the same
US8102244B2 (en) 2003-08-09 2012-01-24 Alien Technology Corporation Methods and apparatuses to identify devices
US7119664B2 (en) * 2003-09-17 2006-10-10 Id Solutions, Inc. Deep sleep in an RFID tag
US8930582B2 (en) * 2003-10-31 2015-01-06 Oracle America, Inc. Method and apparatus for regulating communications between multiple transmitters and receivers
US7716160B2 (en) 2003-11-07 2010-05-11 Alien Technology Corporation Methods and apparatuses to identify devices
EP1692883B1 (de) * 2003-12-09 2010-06-02 Intelleflex Corporation Batterieaktivierungsschaltung
US20050134436A1 (en) * 2003-12-19 2005-06-23 George Brookner Multiple RFID anti-collision interrogation method
US7519323B2 (en) * 2004-01-12 2009-04-14 Nextivity, Inc. Short-range cellular booster
GB2410867B (en) 2004-02-06 2009-04-08 Btg Int Ltd Selection and arbitration method and system
JP4328705B2 (ja) * 2004-02-27 2009-09-09 均 北吉 Ｒｆｉｄタグ装置
US7327802B2 (en) * 2004-03-19 2008-02-05 Sirit Technologies Inc. Method and apparatus for canceling the transmitted signal in a homodyne duplex transceiver
US20060017545A1 (en) * 2004-03-26 2006-01-26 Volpi John P Radio frequency identification interrogation systems and methods of operating the same
US7501948B2 (en) 2004-09-29 2009-03-10 Lone Star Ip Holdings, Lp Interrogation system employing prior knowledge about an object to discern an identity thereof
US20060082442A1 (en) * 2004-10-18 2006-04-20 Impinj, Inc., A Delaware Corporation Preambles with relatively unambiguous autocorrelation peak in RFID systems
US7604178B2 (en) 2005-05-11 2009-10-20 Intelleflex Corporation Smart tag activation
US8198985B2 (en) * 2005-05-31 2012-06-12 Amtech Systems, LLC Automatic mode detection in a dual operating mode RFID tag
US7321290B2 (en) * 2005-10-02 2008-01-22 Visible Assets, Inc. Radio tag and system
KR100682062B1 (ko) * 2005-06-23 2007-02-15 삼성전자주식회사 리더기, 태그, 전파식별(ｒｆｉｄ) 시스템 및 전파 식별방법
US8872633B2 (en) * 2005-07-20 2014-10-28 Intelleflex Corporation Ramped interrogation power levels
US8248211B2 (en) 2005-07-20 2012-08-21 Intelleflex Corporation Selective RF device activation
JP5027398B2 (ja) 2005-09-27 2012-09-19 ルネサスエレクトロニクス株式会社 Ｉｃタグ識別方法
US7772963B2 (en) * 2005-10-20 2010-08-10 Honeywell International Inc. System and method for synchronization of data streams
US8078103B2 (en) 2005-10-31 2011-12-13 Zih Corp. Multi-element RFID coupler
US8817737B2 (en) 2005-10-31 2014-08-26 Lg Electronics Inc. Method of transmitting and receiving data in a mobile communication network
US8548098B2 (en) 2005-12-15 2013-10-01 Intelleflex Corporation Clock-free activation circuit
US9524405B2 (en) * 2005-12-21 2016-12-20 Koninklijke Philips N.V. Collaborating RFID devices
WO2007127948A2 (en) 2006-04-27 2007-11-08 Sirit Technologies Inc. Adjusting parameters associated with leakage signals
US7852964B2 (en) * 2006-06-19 2010-12-14 Mayflower Communications Company, Inc. Antijam filter system and method for high fidelity high data rate wireless communication
US7768422B2 (en) * 2006-09-06 2010-08-03 Carmen Jr Lawrence R Method of restoring a remote wireless control device to a known state
US7880639B2 (en) * 2006-09-06 2011-02-01 Lutron Electronics Co., Inc. Method of establishing communication with wireless control devices
US20080055073A1 (en) * 2006-09-06 2008-03-06 Lutron Electronics Co., Inc. Method of discovering a remotely-located wireless control device
US7755505B2 (en) * 2006-09-06 2010-07-13 Lutron Electronics Co., Inc. Procedure for addressing remotely-located radio frequency components of a control system
DE102006052708B3 (de) 2006-11-08 2008-06-19 Siemens Ag Anordnung und Verfahren zur Datenerfassung
US8072327B2 (en) * 2007-02-21 2011-12-06 Impinj, Inc. Causing RFID tags to reply using changed reply timing
US20080280560A1 (en) * 2007-05-09 2008-11-13 Micron Technology, Inc. Method and system of placing a rfid tag in a continuous transmission mode
US8248212B2 (en) 2007-05-24 2012-08-21 Sirit Inc. Pipelining processes in a RF reader
AU2008266678B2 (en) 2007-06-14 2013-06-20 Cardiac Pacemakers, Inc. Multi-element acoustic recharging system
US8063740B1 (en) 2008-02-20 2011-11-22 Impinj, Inc. Interfacing to RFID reader utility that causes RFID tags to reply using changed reply timing
US9104923B1 (en) * 2008-02-21 2015-08-11 Impinj, Inc. Encapsulating commands for RFID tags and RFID readers
US8427316B2 (en) 2008-03-20 2013-04-23 3M Innovative Properties Company Detecting tampered with radio frequency identification tags
US8446256B2 (en) * 2008-05-19 2013-05-21 Sirit Technologies Inc. Multiplexing radio frequency signals
US8410906B1 (en) * 2008-09-05 2013-04-02 Intelleflex Corporation Battery assisted RFID system RF power control and interference mitigation methods
JP5492903B2 (ja) 2008-10-27 2014-05-14 カーディアック ペースメイカーズ， インコーポレイテッド 植込型装置を充電するための方法およびシステム
US8169312B2 (en) * 2009-01-09 2012-05-01 Sirit Inc. Determining speeds of radio frequency tags
US20100289623A1 (en) * 2009-05-13 2010-11-18 Roesner Bruce B Interrogating radio frequency identification (rfid) tags
US8416079B2 (en) * 2009-06-02 2013-04-09 3M Innovative Properties Company Switching radio frequency identification (RFID) tags
US20110205025A1 (en) * 2010-02-23 2011-08-25 Sirit Technologies Inc. Converting between different radio frequencies
EP2509027B1 (de) 2011-04-04 2019-02-06 Nxp B.V. Verfahren zur Kollisionshandhabung in einem Identifikationssystem
US9035774B2 (en) 2011-04-11 2015-05-19 Lone Star Ip Holdings, Lp Interrogator and system employing the same
US8958550B2 (en) * 2011-09-13 2015-02-17 Combined Conditional Access Development & Support. LLC (CCAD) Encryption operation with real data rounds, dummy data rounds, and delay periods
US10062025B2 (en) 2012-03-09 2018-08-28 Neology, Inc. Switchable RFID tag
FR3000587B1 (fr) * 2012-12-27 2016-04-15 Commissariat Energie Atomique Dispositif de detection du vol d'un objet
US9323964B2 (en) 2013-08-20 2016-04-26 Cubic Corporation Card detection and selection
FR3025608B1 (fr) * 2014-09-05 2019-04-19 Geocolis Suivi d'objets embarques dans une unite de transport
US10726696B1 (en) 2019-03-13 2020-07-28 Rade Security Solutions, Llc Apparatus and methods for providing emergency alerts and securing a premises
EP3869383B1 (de) 2020-02-20 2023-07-19 Continental Automotive Technologies GmbH Verfahren zur identifizierung einer passiven rfid-karte

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471345A (en) 1982-03-05 1984-09-11 Sensormatic Electronics Corporation Randomized tag to portal communication system
DE3560829D1 (de) 1984-04-02 1987-12-03 Squibb & Sons Inc Enkephalinase inhibitors
GB8408538D0 (en) * 1984-04-03 1984-05-16 Senelco Ltd Transmitter-responder systems
GB2157977A (en) 1984-05-04 1985-11-06 Metal Box Plc A device for producing a travelling jet of hot gas
NL8802718A (nl) * 1988-11-04 1990-06-01 Nedap Nv Het achtereenvolgens uitlezen van meerdere radiofrequente detectielabels in een ondervraagveld.
NL8901659A (nl) * 1989-06-30 1991-01-16 Nedap Nv Multipassysteem.
US5055659A (en) * 1990-02-06 1991-10-08 Amtech Technology Corp. High speed system for reading and writing data from and into remote tags
EP0467036B1 (de) 1990-06-15 1996-02-07 Savi Technology, Inc. Verfahren und Gerät zur Radioidentifizierung und Zielverfolgung
US5528232A (en) 1990-06-15 1996-06-18 Savi Technology, Inc. Method and apparatus for locating items
US5242435A (en) 1991-01-04 1993-09-07 Johnson & Johnson Inc. Highly absorbent and flexible cellulosic pulp fluff sheet
JP3100716B2 (ja) 1991-01-04 2000-10-23 シーエスアイアール 識別装置
US5231273A (en) * 1991-04-09 1993-07-27 Comtec Industries Inventory management system
US5365551A (en) * 1992-12-15 1994-11-15 Micron Technology, Inc. Data communication transceiver using identification protocol
RU2156540C2 (ru) * 1992-08-26 2000-09-20 Бритиш Технолоджи гроуп Лимитед Система идентификации с опросным устройством и множеством ответчиков, ответчик системы идентификации
NZ250219A (en) 1992-11-18 1997-05-26 Csir Identification of multiple transponders
US5430447A (en) * 1993-08-23 1995-07-04 Texas Instruments Deutschland Gmbh Protection against manipulation of batteryless read/write transponders
US5471212A (en) * 1994-04-26 1995-11-28 Texas Instruments Incorporated Multi-stage transponder wake-up, method and structure
US5530702A (en) * 1994-05-31 1996-06-25 Ludwig Kipp System for storage and communication of information
JPH0816739A (ja) * 1994-06-24 1996-01-19 Tokimec Inc リーダライタとデータキャリアを用いたデータ処理装置
US6812852B1 (en) 1994-09-09 2004-11-02 Intermac Ip Corp. System and method for selecting a subset of autonomous and independent slave entities
DE19526353A1 (de) * 1995-07-19 1997-01-23 Anatoli Stobbe Verfahren zur automatischen Identifikation einer unbekannten Anzahl von Transpondern durch einen Leser sowie Identifikationssystem zur Durchführung des Verfahrens
US5926110A (en) * 1995-08-30 1999-07-20 Ramtron International Corporation Programmable output devices for controlling signal levels in an RF/ID transponder
DE19544054A1 (de) * 1995-11-25 1997-05-28 Daimler Benz Aerospace Ag Identifizierungssystem
US5940006A (en) * 1995-12-12 1999-08-17 Lucent Technologies Inc. Enhanced uplink modulated backscatter system
US5777561A (en) * 1996-09-30 1998-07-07 International Business Machines Corporation Method of grouping RF transponders
US5952922A (en) * 1996-12-31 1999-09-14 Lucent Technologies Inc. In-building modulated backscatter system
ATE250781T1 (de) 1997-05-14 2003-10-15 Btg Int Ltd Verbessertes identifikationssystem
GB9724183D0 (en) 1997-11-14 1998-01-14 British Tech Group Identification system
US6104279A (en) * 1998-03-23 2000-08-15 Atmel Corporation Method of communication between a plurality of remote units and a control unit
CN1248419C (zh) * 2000-06-12 2006-03-29 休普传感器控股有限责任公司 用于电子射频识别系统的读取器及其读取方法
GB2410867B (en) 2004-02-06 2009-04-08 Btg Int Ltd Selection and arbitration method and system
US7916023B2 (en) 2006-01-31 2011-03-29 Zebra Enterprise Solutions Corp. System and method for tracking assets within a monitored environment

Also Published As

Publication number Publication date
US9607193B2 (en) 2017-03-28
ATE250781T1 (de) 2003-10-15
BR9808714A (pt) 2000-07-11
DK1280092T3 (da) 2005-03-29
RU2238585C2 (ru) 2004-10-20
DK0983569T3 (da) 2004-02-09
IL132297A0 (en) 2001-03-19
DE69827858T2 (de) 2005-11-24
EP1462983A1 (de) 2004-09-29
IL132297A (en) 2004-06-20
US20060279408A1 (en) 2006-12-14
EP1280092A1 (de) 2003-01-29
DE69842260D1 (de) 2011-06-16
EP0983569B1 (de) 2003-09-24
US7053755B2 (en) 2006-05-30
KR100525317B1 (ko) 2005-11-02
AU745638B2 (en) 2002-03-28
ES2231634T3 (es) 2005-05-16
US20120306625A1 (en) 2012-12-06
KR20010012520A (ko) 2001-02-15
US8872631B2 (en) 2014-10-28
EP1462983B1 (de) 2011-05-04
ATE508425T1 (de) 2011-05-15
EP0983569A1 (de) 2000-03-08
DE69827858D1 (de) 2004-12-30
US20040046645A1 (en) 2004-03-11
CN1255994A (zh) 2000-06-07
WO1998052142A1 (en) 1998-11-19
EP1280092B1 (de) 2004-11-24
ES2207833T3 (es) 2004-06-01
JP2001525140A (ja) 2001-12-04
CA2289207A1 (en) 1998-11-19
NZ337966A (en) 2001-11-30
JP4172727B2 (ja) 2008-10-29
DE69818454D1 (de) 2003-10-30
US6661336B1 (en) 2003-12-09
AU7440198A (en) 1998-12-08
DE69818454T2 (de) 2004-07-22

Similar Documents

Publication Publication Date Title
DK1280092T3 (da) Forbedret identifikationssystem
WO2000054414A3 (en) Learning security control device
GB2357337B (en) A method and system for directing a following device toward a movable object
NO934177D0 (no) Identifikasjonssystem
DE19625002B4 (de) Fahrzeugkommunikationssystem
WO2000071843A3 (de) Verfahren und anordnung zur fern-zugangssteuerung
DE60109166D1 (de) Kommunikationssystem zur Detektion von ausserhalb des Systems erzeugter Interferenz
WO2005027017A3 (en) Systems and methods for amplifying a transmit signal in a rfid interrogator
AU1230400A (en) Low-height, low-cost, high-gain antenna and system for mobile platforms
EP1001366A3 (de) Elektronisches Identifizierungssystem
DE69831711D1 (de) Transpondernachrichtenübertragungsgerät
AU2001270416A1 (en) Low-power passive transponder
BR9908568B1 (pt) sistema de comunicações, método de comunicação de um sinal de vídeo e método de estabelecimento de um sistema de comunicações.
WO2001054371A3 (de) Verfahren, system zur übermittlung von daten von einem sender zu einem empfänger und sender bzw. empfänger hierzu
WO2001079881A3 (en) Distributed power amplifier architecture for tcas transmitter
PT894061E (pt) Processo e dispositivo de transmissao selectiva de dados em sistemas de comnicacao de engenharia de trafego
ATE500707T1 (de) System und verfahren für effektives empfangen und senden von satellitensignalen
AU2110300A (en) Method for securing access to a data processing device and appropriate device
WO2001019001A3 (de) Verfahren zur datenverarbeitung in einem rundfunkempfänger
WO2003085843A3 (en) Transponder-based communication systems
WO2000052636A3 (en) Identification system

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties