DE69930975D1 - Rauscharmer Signalgenerator zur Verwendung in einem RFID System - Google Patents

Rauscharmer Signalgenerator zur Verwendung in einem RFID System

Info

Publication number
DE69930975D1
DE69930975D1 DE69930975T DE69930975T DE69930975D1 DE 69930975 D1 DE69930975 D1 DE 69930975D1 DE 69930975 T DE69930975 T DE 69930975T DE 69930975 T DE69930975 T DE 69930975T DE 69930975 D1 DE69930975 D1 DE 69930975D1
Authority
DE
Germany
Prior art keywords
frequency
low
signal generator
noise signal
flip
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
DE69930975T
Other languages
English (en)
Other versions
DE69930975T2 (de
Inventor
William F Gallagher Iii
Eric Eckstein
Russell E Barber
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.)
Checkpoint Systems Inc
Original Assignee
Checkpoint Systems Inc
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 US09/122,121 external-priority patent/US5959531A/en
Priority claimed from US09/122,310 external-priority patent/US5955950A/en
Application filed by Checkpoint Systems Inc filed Critical Checkpoint Systems Inc
Application granted granted Critical
Publication of DE69930975D1 publication Critical patent/DE69930975D1/de
Publication of DE69930975T2 publication Critical patent/DE69930975T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • 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
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2405—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used
    • G08B13/2414—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used using inductive tags
    • G08B13/2417—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used using inductive tags having a radio frequency identification chip
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2465—Aspects related to the EAS system, e.g. system components other than tags
    • G08B13/2468—Antenna in system and the related signal processing
    • G08B13/2471—Antenna signal processing by receiver or emitter
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2465—Aspects related to the EAS system, e.g. system components other than tags
    • G08B13/2468—Antenna in system and the related signal processing
    • G08B13/2474—Antenna or antenna activator geometry, arrangement or layout
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2465—Aspects related to the EAS system, e.g. system components other than tags
    • G08B13/2468—Antenna in system and the related signal processing
    • G08B13/2477—Antenna or antenna activator circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
    • H04B10/25752—Optical arrangements for wireless networks
    • H04B10/25758—Optical arrangements for wireless networks between a central unit and a single remote unit by means of an optical fibre

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Artificial Intelligence (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Near-Field Transmission Systems (AREA)
  • Burglar Alarm Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
DE69930975T 1998-07-24 1999-07-13 Rauscharmer Signalgenerator zur Verwendung in einem RFID System Expired - Lifetime DE69930975T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US122310 1998-07-24
US122121 1998-07-24
US09/122,121 US5959531A (en) 1998-07-24 1998-07-24 Optical interface between receiver and tag response signal analyzer in RFID system for detecting low power resonant tags
US09/122,310 US5955950A (en) 1998-07-24 1998-07-24 Low noise signal generator for use with an RFID system

Publications (2)

Publication Number Publication Date
DE69930975D1 true DE69930975D1 (de) 2006-05-24
DE69930975T2 DE69930975T2 (de) 2006-12-14

Family

ID=26820183

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69921658T Expired - Lifetime DE69921658T2 (de) 1998-07-24 1999-07-13 Optisches Interface zwischen Empfänger und Auswerteeinheit für Antwortsignale eines Etiketts in RFID-Systemen zur Erkennung von leistungsschwachen Resonanzetiketten
DE69930975T Expired - Lifetime DE69930975T2 (de) 1998-07-24 1999-07-13 Rauscharmer Signalgenerator zur Verwendung in einem RFID System

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69921658T Expired - Lifetime DE69921658T2 (de) 1998-07-24 1999-07-13 Optisches Interface zwischen Empfänger und Auswerteeinheit für Antwortsignale eines Etiketts in RFID-Systemen zur Erkennung von leistungsschwachen Resonanzetiketten

Country Status (10)

Country Link
EP (2) EP1376445B1 (de)
JP (1) JP4445672B2 (de)
KR (1) KR100660409B1 (de)
CN (2) CN1238732C (de)
AT (2) ATE323910T1 (de)
AU (1) AU753617B2 (de)
CA (2) CA2624853A1 (de)
DE (2) DE69921658T2 (de)
ES (2) ES2262929T3 (de)
WO (1) WO2000005692A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006060763A (ja) * 2003-12-26 2006-03-02 Ricoh Co Ltd Ｉｃタグ用リーダ及び／又はライタ、並びにｉｃタグ用リーダ及び／又はライタを有する装置
US7259677B2 (en) 2003-12-26 2007-08-21 Ricoh Company, Ltd. IC-tag read-write apparatus
JP4387323B2 (ja) * 2005-04-08 2009-12-16 富士通株式会社 Ｒｆｉｄ用送受信装置
US7456743B2 (en) * 2005-12-07 2008-11-25 Datamars S.A. Combined low and high frequency RFID system
SE531799C2 (sv) * 2006-09-01 2009-08-04 Leptonradio Ab En anordning för trådlös manövrering och en metod för att manövrera anordningen
JP5152274B2 (ja) * 2010-08-24 2013-02-27 日立電線株式会社 Ｒｆｉｄ読み取り装置
CN103152028A (zh) * 2013-01-31 2013-06-12 南京南瑞继保电气有限公司 一种提高固态开关驱动可靠性的装置
CN104382601A (zh) * 2014-11-21 2015-03-04 天津大学 一种基于rfid的血氧脉搏检测系统
CN105006155A (zh) * 2015-07-28 2015-10-28 苏州宏展信息科技有限公司 一种基于射频传输的行人交通信号灯箱控制系统

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4083003A (en) * 1973-11-05 1978-04-04 Products Of Information Technology, Inc. Vehicle location system
US4623877A (en) * 1983-06-30 1986-11-18 Knogo Corporation Method and apparatus for detection of targets in an interrogation zone
US5121103A (en) * 1988-07-29 1992-06-09 Knogo Corporation Load isolated article surveillance system and antenna assembly
US5070500A (en) * 1988-08-30 1991-12-03 Tokyo Keiki Company Ltd. Memory package system utilizing inductive coupling between memory module and read/write unit
US4975681A (en) * 1989-12-07 1990-12-04 Sensormatic Electronics Corporation Interfering signal rejection circuitry and electronic article surveillance system and method employing same
US5266926A (en) * 1991-05-31 1993-11-30 Avid Marketing, Inc. Signal transmission and tag power consumption measurement circuit for an inductive reader
FR2685582B1 (fr) * 1991-12-18 1997-06-27 Com 1 Dispositif d'interface electronique de transmission lineaire de signaux a haute isolation par opto-coupleurs polarises en inverse.
US5331453A (en) * 1992-06-15 1994-07-19 Ael Defense Corp. Millimeter wave fiber-optically linked antenna receiver device
US5353011A (en) * 1993-01-04 1994-10-04 Checkpoint Systems, Inc. Electronic article security system with digital signal processing and increased detection range
JP3600266B2 (ja) * 1994-04-08 2004-12-15 株式会社ルネサステクノロジ 非接触ｉｃカードインタフェース装置及びそれを用いた通信システム

Also Published As

Publication number Publication date
CN1495438A (zh) 2004-05-12
CN1238732C (zh) 2006-01-25
EP1376445A2 (de) 2004-01-02
ATE323910T1 (de) 2006-05-15
KR100660409B1 (ko) 2006-12-22
DE69921658D1 (de) 2004-12-09
EP1099200A4 (de) 2003-04-09
DE69930975T2 (de) 2006-12-14
ES2233058T3 (es) 2005-06-01
EP1099200B1 (de) 2004-11-03
KR20010079523A (ko) 2001-08-22
DE69921658T2 (de) 2005-10-20
CN1135509C (zh) 2004-01-21
CA2338640C (en) 2010-02-02
CN1310833A (zh) 2001-08-29
EP1376445B1 (de) 2006-04-19
JP4445672B2 (ja) 2010-04-07
CA2338640A1 (en) 2000-02-03
EP1099200A1 (de) 2001-05-16
JP2002521899A (ja) 2002-07-16
ATE281671T1 (de) 2004-11-15
AU5100799A (en) 2000-02-14
CA2624853A1 (en) 2000-02-03
WO2000005692A1 (en) 2000-02-03
EP1376445A3 (de) 2004-01-07
AU753617B2 (en) 2002-10-24
ES2262929T3 (es) 2006-12-01

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