DE69129002T2 - Periodisches pulsdiskriminierungssystem - Google Patents

Periodisches pulsdiskriminierungssystem

Info

Publication number
DE69129002T2
DE69129002T2 DE69129002T DE69129002T DE69129002T2 DE 69129002 T2 DE69129002 T2 DE 69129002T2 DE 69129002 T DE69129002 T DE 69129002T DE 69129002 T DE69129002 T DE 69129002T DE 69129002 T2 DE69129002 T2 DE 69129002T2
Authority
DE
Germany
Prior art keywords
electromagnetic field
frequency
tag signals
frequencies
transmitter
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 - Fee Related
Application number
DE69129002T
Other languages
English (en)
Other versions
DE69129002D1 (de
Inventor
James Stoffer
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.)
Sensormatic Electronics Corp
Original Assignee
Sensormatic Electronics Corp
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 Sensormatic Electronics Corp filed Critical Sensormatic Electronics Corp
Publication of DE69129002D1 publication Critical patent/DE69129002D1/de
Application granted granted Critical
Publication of DE69129002T2 publication Critical patent/DE69129002T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • 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
    • G08B13/2477—Antenna or antenna activator circuit
    • 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
    • G08B13/2488—Timing issues, e.g. synchronising measures to avoid signal collision, with multiple emitters or a single emitter and receiver
DE69129002T 1990-05-29 1991-04-29 Periodisches pulsdiskriminierungssystem Expired - Fee Related DE69129002T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/530,900 US5300922A (en) 1990-05-29 1990-05-29 Swept frequency electronic article surveillance system having enhanced facility for tag signal detection
PCT/US1991/002833 WO1991019278A1 (en) 1990-05-29 1991-04-29 Periodic pulse discrimination system

Publications (2)

Publication Number Publication Date
DE69129002D1 DE69129002D1 (de) 1998-04-09
DE69129002T2 true DE69129002T2 (de) 1998-09-17

Family

ID=24115443

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69129002T Expired - Fee Related DE69129002T2 (de) 1990-05-29 1991-04-29 Periodisches pulsdiskriminierungssystem

Country Status (9)

Country Link
US (2) US5300922A (de)
EP (1) EP0485552B1 (de)
AT (1) ATE163789T1 (de)
AU (1) AU649450B2 (de)
CA (1) CA2059665C (de)
DE (1) DE69129002T2 (de)
ES (1) ES2113883T3 (de)
HK (1) HK1005919A1 (de)
WO (1) WO1991019278A1 (de)

Families Citing this family (86)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5349339A (en) * 1992-04-07 1994-09-20 Actron Entwicklungs Ag Apparatus for the detection of labels employing subtraction of background signals
US5264829A (en) * 1992-06-15 1993-11-23 Knogo Corporation Method and apparatus for theft detection using digital signal processing
US5349332A (en) * 1992-10-13 1994-09-20 Sensormatic Electronics Corportion EAS system with requency hopping
SE9401450L (sv) * 1994-04-26 1995-10-27 Rso Corp Sätt vid detektering av magnetiska element
SE9401449L (sv) * 1994-04-26 1995-10-27 Rso Corp Sätt och anordning vid kodning av elektroniska etiketter
SE9401436L (sv) * 1994-04-26 1995-10-27 Rso Corp Amorfa band med förbättrade egenskaper
SE9401448L (sv) * 1994-04-26 1995-10-27 Rso Corp Sätt och anordning vid excitering och detektering av magnetiska element
US5512878A (en) * 1994-10-06 1996-04-30 Sensormatic Electronics Corporation Pulsed electronic article surveillance systems
SE503526C2 (sv) * 1994-10-26 1996-07-01 Rso Corp Sätt för detektering av etiketter med amorfa magnetoelastiska band
BR9604805A (pt) * 1995-04-07 1998-06-09 Minnesota Mining & Mfg Sistema de vigilância eletrônica sobre artigos e processo de detectar a presença de uma etiqueta sensibilizada em um corredor de interrogação
DE19514601A1 (de) * 1995-04-20 1996-10-24 Esselte Meto Int Gmbh Anlage zur elektronischen Artikelüberwachung, insbesondere zur Detektion von Schwingkreisen mit stark unterschiedlichen Resonanzfrequenzen
CA2193846C (en) 1995-05-17 2004-02-17 Bradford L. Farris Rolling code security system
US5973597A (en) * 1996-08-27 1999-10-26 Maspro Denkoh, Co., Ltd. Theft checking system
DE19644927A1 (de) * 1996-10-29 1998-04-30 Esselte Meto Int Gmbh Vorrichtung zur Überwachung eines elektronischen Sicherungselementes in einer Abfragezone
US5745039A (en) * 1997-02-21 1998-04-28 Minnesota Mining And Manufacturing Company Remote sterilization monitor
US5926093A (en) * 1997-08-15 1999-07-20 Checkpoint Systems, Inc. Drive circuit for reactive loads
US5990791A (en) * 1997-10-22 1999-11-23 William B. Spargur Anti-theft detection system
US5973606A (en) * 1997-12-08 1999-10-26 Sensormatic Electronics Corporation Activation/deactivation system and method for electronic article surveillance markers for use on a conveyor
US5955992A (en) * 1998-02-12 1999-09-21 Shattil; Steve J. Frequency-shifted feedback cavity used as a phased array antenna controller and carrier interference multiple access spread-spectrum transmitter
US7430257B1 (en) 1998-02-12 2008-09-30 Lot 41 Acquisition Foundation, Llc Multicarrier sub-layer for direct sequence channel and multiple-access coding
US6028518A (en) * 1998-06-04 2000-02-22 Checkpoint Systems, Inc. System for verifying attachment of an EAS marker to an article after tagging
US6338028B1 (en) * 1998-06-11 2002-01-08 Trw Inc. Ultrasonic sensor system and method having input capture for echo processing
WO2000016283A1 (en) * 1998-09-11 2000-03-23 Motorola Inc. Generation of electrostatic voltage potentials for rfid/eas using piezoelectric crystals
KR100634296B1 (ko) * 1998-11-24 2006-10-16 가부시키가이샤 코진 자명식 물품감시장치
US6133829A (en) * 1999-03-05 2000-10-17 Frl, Inc. Walk-through metal detector system and method
US6249229B1 (en) * 1999-08-16 2001-06-19 Checkpoint Systems, Inc., A Corp. Of Pennsylvania Electronic article security system employing variable time shifts
US7406261B2 (en) * 1999-11-02 2008-07-29 Lot 41 Acquisition Foundation, Llc Unified multi-carrier framework for multiple-access technologies
US8670390B2 (en) 2000-11-22 2014-03-11 Genghiscomm Holdings, LLC Cooperative beam-forming in wireless networks
CN1401111A (zh) 2000-12-15 2003-03-05 东方条带及卷筒公司 纸卷防盗保护
US6634959B2 (en) * 2001-01-05 2003-10-21 Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C. Golf ball locator
CA2441904C (en) 2001-03-26 2011-06-14 Sensormatic Electronics Corporation Digital detection filters for electronic article surveillance
US9893774B2 (en) 2001-04-26 2018-02-13 Genghiscomm Holdings, LLC Cloud radio access network
US10355720B2 (en) 2001-04-26 2019-07-16 Genghiscomm Holdings, LLC Distributed software-defined radio
US9819449B2 (en) 2002-05-14 2017-11-14 Genghiscomm Holdings, LLC Cooperative subspace demultiplexing in content delivery networks
US10931338B2 (en) 2001-04-26 2021-02-23 Genghiscomm Holdings, LLC Coordinated multipoint systems
US10425135B2 (en) 2001-04-26 2019-09-24 Genghiscomm Holdings, LLC Coordinated multipoint systems
EP1288841A1 (de) * 2001-08-30 2003-03-05 Motorola, Inc. Passives Antwort Kommunikationssystem
WO2003088006A2 (en) * 2002-04-11 2003-10-23 Sensormatic Electronics Corporation System and method for managing assets using a portable combined electronic article surveillance system and barcode scanner
US6750768B2 (en) * 2002-04-15 2004-06-15 Wg Security Products, Inc. EAS system employing pseudorandom coding system and method
US6753821B2 (en) * 2002-04-22 2004-06-22 Wg Security Products, Inc. Method and arrangement of antenna system of EAS
US6745852B2 (en) * 2002-05-08 2004-06-08 Anadarko Petroleum Corporation Platform for drilling oil and gas wells in arctic, inaccessible, or environmentally sensitive locations
US10142082B1 (en) 2002-05-14 2018-11-27 Genghiscomm Holdings, LLC Pre-coding in OFDM
US10644916B1 (en) 2002-05-14 2020-05-05 Genghiscomm Holdings, LLC Spreading and precoding in OFDM
US9628231B2 (en) 2002-05-14 2017-04-18 Genghiscomm Holdings, LLC Spreading and precoding in OFDM
US10200227B2 (en) 2002-05-14 2019-02-05 Genghiscomm Holdings, LLC Pre-coding in multi-user MIMO
US7116227B2 (en) * 2004-02-23 2006-10-03 Checkpoint Systems, Inc. Tag having patterned circuit elements and a process for making same
US7138919B2 (en) * 2004-02-23 2006-11-21 Checkpoint Systems, Inc. Identification marking and method for applying the identification marking to an item
US7384496B2 (en) * 2004-02-23 2008-06-10 Checkpoint Systems, Inc. Security tag system for fabricating a tag including an integrated surface processing system
US7704346B2 (en) * 2004-02-23 2010-04-27 Checkpoint Systems, Inc. Method of fabricating a security tag in an integrated surface processing system
US8099335B2 (en) * 2004-02-23 2012-01-17 Checkpoint Systems, Inc. Method and system for determining billing information in a tag fabrication process
US7119685B2 (en) * 2004-02-23 2006-10-10 Checkpoint Systems, Inc. Method for aligning capacitor plates in a security tag and a capacitor formed thereby
US11184037B1 (en) 2004-08-02 2021-11-23 Genghiscomm Holdings, LLC Demodulating and decoding carrier interferometry signals
US11381285B1 (en) 2004-08-02 2022-07-05 Genghiscomm Holdings, LLC Transmit pre-coding
US11552737B1 (en) 2004-08-02 2023-01-10 Genghiscomm Holdings, LLC Cooperative MIMO
EP1812911A1 (de) * 2004-11-18 2007-08-01 Sensormatic Electronics Corporation Eas-leser zur detektion von eas-funktionen von einer rfid-vorrichtung
US9148409B2 (en) 2005-06-30 2015-09-29 The Chamberlain Group, Inc. Method and apparatus to facilitate message transmission and reception using different transmission characteristics
US8422667B2 (en) 2005-01-27 2013-04-16 The Chamberlain Group, Inc. Method and apparatus to facilitate transmission of an encrypted rolling code
US7689195B2 (en) * 2005-02-22 2010-03-30 Broadcom Corporation Multi-protocol radio frequency identification transponder tranceiver
WO2006112608A1 (en) * 2005-03-14 2006-10-26 Samsung Electronics Co., Ltd. Portable device for caching rf-id tag data and method thereof
US7825822B2 (en) 2005-04-01 2010-11-02 Cepia, Llc System and method for extracting and conveying modulated AC signal information
US9280692B2 (en) * 2005-08-25 2016-03-08 Nxp B.V. Method and RFID reader for evaluating a data stream signal in respect of data and/or collision
US7817015B1 (en) * 2005-09-29 2010-10-19 Tc License Ltd. Floating threshold for data detection in a RFID tag
US7663489B2 (en) * 2006-04-28 2010-02-16 Checkpoint Systems, Inc. Alarm systems, wireless alarm devices, and article security methods
FR2905493B1 (fr) * 2006-08-31 2008-12-05 Nbg Id Soc Par Actions Simplif Systeme automatise de realisation d'inventaires localises
US20080079543A1 (en) * 2006-09-14 2008-04-03 Bruno Fabre Apparatus for identifying and counting articles in bulk
US8207826B2 (en) * 2006-10-03 2012-06-26 Ncr Corporation Methods and apparatus for analyzing signal conditions affecting operation of an RFID communication device
US20090066496A1 (en) * 2007-09-11 2009-03-12 Lear Corporation Low frequency receiver for a tire pressure monitor system
JP2010193598A (ja) * 2009-02-17 2010-09-02 Nippon Soken Inc 非接触給電設備および非接触給電システム
MX2014015223A (es) * 2012-06-18 2015-03-19 Master Lock Co Sistema de deteccion de identificacion de radiofrecuencia.
US9595177B2 (en) 2014-12-14 2017-03-14 Wg Security Products, Inc. Noise compensating EAS antenna system
CN106656073A (zh) * 2016-10-28 2017-05-10 中州大学 一种传感器电子信号放大器
CN108363932B (zh) 2017-01-26 2023-04-18 手持产品公司 读取条形码并去激活商品电子防窃标签的方法
WO2018184231A1 (en) * 2017-04-07 2018-10-11 SZ DJI Technology Co., Ltd. Jamming device and jamming method
US10393784B2 (en) 2017-04-26 2019-08-27 Raytheon Company Analysis of a radio-frequency environment utilizing pulse masking
US10637705B1 (en) 2017-05-25 2020-04-28 Genghiscomm Holdings, LLC Peak-to-average-power reduction for OFDM multiple access
US10243773B1 (en) 2017-06-30 2019-03-26 Genghiscomm Holdings, LLC Efficient peak-to-average-power reduction for OFDM and MIMO-OFDM
US10154885B1 (en) 2017-05-26 2018-12-18 Medline Industries, Inc. Systems, apparatus and methods for continuously tracking medical items throughout a procedure
US10652743B2 (en) 2017-12-21 2020-05-12 The Chamberlain Group, Inc. Security system for a moveable barrier operator
US11074773B1 (en) 2018-06-27 2021-07-27 The Chamberlain Group, Inc. Network-based control of movable barrier operators for autonomous vehicles
CA3107457A1 (en) 2018-08-01 2020-02-06 The Chamberlain Group, Inc. Movable barrier operator and transmitter pairing over a network
US11343823B2 (en) 2020-08-16 2022-05-24 Tybalt, Llc Orthogonal multiple access and non-orthogonal multiple access
US11917604B2 (en) 2019-01-25 2024-02-27 Tybalt, Llc Orthogonal multiple access and non-orthogonal multiple access
EP3915236A4 (de) 2019-01-25 2023-05-24 Genghiscomm Holdings, LLC Orthogonaler mehrfachzugriff und nicht-orthogonaler mehrfachzugrif
US11617625B2 (en) 2019-03-12 2023-04-04 Medline Industries, Lp Systems, apparatus and methods for properly locating items
US10997810B2 (en) 2019-05-16 2021-05-04 The Chamberlain Group, Inc. In-vehicle transmitter training
WO2020242898A1 (en) 2019-05-26 2020-12-03 Genghiscomm Holdings, LLC Non-orthogonal multiple access

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3818472A (en) * 1972-05-26 1974-06-18 K Mauk R.f. system for detecting unauthorized travel of articles through a selected zone
US3967161A (en) * 1972-06-14 1976-06-29 Lichtblau G J A multi-frequency resonant tag circuit for use with an electronic security system having improved noise discrimination
US4168496A (en) * 1977-10-05 1979-09-18 Lichtblau G J Quasi-stationary noise cancellation system
US4300183A (en) * 1980-03-27 1981-11-10 Richardson Robert H Method and apparatus for generating alternating magnetic fields to produce harmonic signals from a metallic strip
US4429302A (en) * 1981-10-08 1984-01-31 I. D. Engineering, Inc. Electronic security system with noise rejection
CA1234892A (en) * 1984-02-16 1988-04-05 Pierre Taillefer Security tag detection system
US4779077A (en) * 1987-04-13 1988-10-18 Lichtblau G J Continuously armed high reliability pulse train processor
US4906973A (en) * 1988-04-29 1990-03-06 White's Electronics, Inc. Walk-through metal detector
US4888579A (en) * 1988-09-16 1989-12-19 Minnesota Mining And Manufacturing Company False alarm minimization and direction determination methods
EP0403632A4 (en) * 1989-01-09 1993-05-05 Checkpoint Systems, Inc. Electronic article surveillance system with improved differentiation
US5103209A (en) * 1989-01-09 1992-04-07 Checkpoint Systems, Inc. Electronic article surveillance system with improved differentiation

Also Published As

Publication number Publication date
US5463376A (en) 1995-10-31
EP0485552A4 (en) 1992-10-28
DE69129002D1 (de) 1998-04-09
WO1991019278A1 (en) 1991-12-12
HK1005919A1 (en) 1999-01-29
ES2113883T3 (es) 1998-05-16
CA2059665C (en) 2000-03-21
ATE163789T1 (de) 1998-03-15
EP0485552A1 (de) 1992-05-20
US5300922A (en) 1994-04-05
EP0485552B1 (de) 1998-03-04
AU7876091A (en) 1991-12-31
AU649450B2 (en) 1994-05-26
CA2059665A1 (en) 1991-11-30

Similar Documents

Publication Publication Date Title
DE69129002D1 (de) Periodisches pulsdiskriminierungssystem
US3798642A (en) Recognition system
ES413541A1 (es) Un sistema de vigilancia para detectar la presencia en un espacio controlado de un receptor-retransmisor de senales electricas.
DK206790A (da) Antennekonstruktion til et elektronisk vareovervaagningsanlaeg
ES472647A1 (es) Un sistema de vigilancia perfeccionado para detectar la pre-sencia, en un espacio controlado, de un receptor-retransmi- sor de senales electricas
NO801465L (no) Fremgangsmaate og anordning for paavisning av en elektromagnetisk transponder i en overvaakningssone
AU538997B2 (en) Active transponder
SE9600528L (sv) Givare för beröringsfri detektering av föremål
DE69916759D1 (de) Sicherheitssystem zur Durchgangsüberwachung von Artikeln
FR2669481B1 (fr) Systeme d'echanges de donnees par ondes electromagnetiques.
ES442400A1 (es) Un sistema para la deteccion de objetos moviles dentro de unarea de reconocimiento por difraccion de microondas.
DK374687D0 (da) Anlaeg til fjernovervaagning af tilstedevaerelsen i et naerliggende omraade af en bevaegelig genstand, et dyr eller et menneske
AU8520301A (en) A magnetomechanical electronic article surveillance system and method using sideband detection
ES2170129T3 (es) Dispositivo y procedimiento de televigilancia de objetos depositados en un local.
CA2178901A1 (en) Circular magnetic target for an electronic article surveillance system
GB1354947A (en) Identification systems and identification transmitters therefor
JPS5779476A (en) Identification device
GB1212504A (en) Theft detection system
DE68920736D1 (de) Eindringdetektor, der elektromagnetische wellen verwendet.
TH18356EX (th) ระบบสำหรับส่งสัญญาณวิทยุเกี่ยวกับข้อมูลแสดงระดับของเหลว และสำหรับแปลงข้อมูลที่ได้รับเป็นข้อมูลแสดงปริมาตร
AR246003A1 (es) Una disposicion electronico de seguridad.
SU943787A1 (ru) Устройство для охранной сигнализации
DE59505271D1 (de) Anlage zur elektronischen Artikelüberwachung
YU47170B (sh) Elektronski sigurnosni sistem kod koga se koristi elektronsko kolo priveska
IT1198055B (it) Sistema antitaccheggio

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee