ES2177874T3 - Dispositivo para la vigilancia de un elemento de seguridad en una zonade interrogacion. - Google Patents

Dispositivo para la vigilancia de un elemento de seguridad en una zonade interrogacion.

Info

Publication number
ES2177874T3
ES2177874T3 ES97117104T ES97117104T ES2177874T3 ES 2177874 T3 ES2177874 T3 ES 2177874T3 ES 97117104 T ES97117104 T ES 97117104T ES 97117104 T ES97117104 T ES 97117104T ES 2177874 T3 ES2177874 T3 ES 2177874T3
Authority
ES
Spain
Prior art keywords
signal
consultation
received
recognition
protection element
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
ES97117104T
Other languages
English (en)
Inventor
David Stocks
Terry Clancy
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.)
Meto International GmbH
Original Assignee
Meto International GmbH
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 Meto International GmbH filed Critical Meto International GmbH
Application granted granted Critical
Publication of ES2177874T3 publication Critical patent/ES2177874T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
    • G08B13/2482—EAS methods, e.g. description of flow chart of the detection procedure
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

LA INVENCION SE REFIERE A UN DISPOSITIVO PARA SUPERVISAR UN ELEMENTO ELECTRONICO DE PROTECCION (2) EN UNA ZONA DE CONSULTA (3), COMPUESTO POR UN DISPOSITIVO EMISOR (4) QUE EMITE AL MENOS UNA SEÑAL PERIODICA DE CONSULTA EN LA ZONA DE CONSULTA (3), EXCITANDO LA SEÑAL DE CONSULTA EL ELEMENTO DE PROTECCION (2) PARA EMITIR UNA SEÑAL DE RECONOCIMIENTO, POR UN DISPOSITIVO RECEPTOR (5) QUE RECIBE LA SEÑAL DE RECONOCIMIENTO, Y UNA UNIDAD DE CALCULO/REGULACION (7), QUE VALORA LAS SEÑALES RECIBIDAS R(S) POR EL DISPOSITIVO RECEPTOR (5) Y LIBERA UNA ALARMA CUANDO SE IDENTIFICA EL ELEMENTO DE PROTECCION (2). LA INVENCION SE HA IMPUESTO LA MISION DE PROPONER UN DISPOSITIVO (1), QUE MEJORE EL RECONOCIMIENTO DE ARTICULOS EQUIPADOS CON ELEMENTOS DE PROTECCION (2) DETECTABLES ELECTRONICAMENTE, DENTRO DE UNA ZONA DE CONSULTA (3). LA MISION ES RESUELTA POR MEDIO DE QUE EL DISPOSITIVO DE CALCULO/REGULACION (7) VALORA LA SEÑAL RECIBIDA EN CUANTO A AMPLITUD Y FASE (COMPONENTE I Y COMPONENTE Q), DE QUE RECONOCE Y DETERMINA APROXIMADAMENTE UNA SEÑAL DE PERTURBACION (FD(S)) QUE SURJA EN LA SEÑAL RECIBIDA Y DE QUE LIBERA LA SEÑAL RECIBIDA (R(S)) DE LA SEÑAL DE PERTURBACION (FD(S)).
ES97117104T 1996-10-18 1997-10-02 Dispositivo para la vigilancia de un elemento de seguridad en una zonade interrogacion. Expired - Lifetime ES2177874T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19642985A DE19642985A1 (de) 1996-10-18 1996-10-18 Vorrichtung zur Überwachung eines elektronischen Sicherungselementes in einer Abfragezone

Publications (1)

Publication Number Publication Date
ES2177874T3 true ES2177874T3 (es) 2002-12-16

Family

ID=7809080

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97117104T Expired - Lifetime ES2177874T3 (es) 1996-10-18 1997-10-02 Dispositivo para la vigilancia de un elemento de seguridad en una zonade interrogacion.

Country Status (4)

Country Link
US (1) US6064296A (es)
EP (1) EP0837432B1 (es)
DE (2) DE19642985A1 (es)
ES (1) ES2177874T3 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19809433C1 (de) * 1998-03-05 1999-06-24 Siemens Ag Verfahren zum Initialisieren eines Diebstahlschutzsystems für ein Kraftfahrzeug
NL1026690C2 (nl) * 2004-07-20 2006-01-23 Nedap Nv Elektronisch detectiesysteem voor het detecteren van antidiefstal- en/of identificatielabels.
KR100814002B1 (ko) * 2006-06-29 2008-03-14 삼성전자주식회사 전파 식별을 위한 데이터 복원 방법 및 장치

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4168496A (en) * 1977-10-05 1979-09-18 Lichtblau G J Quasi-stationary noise cancellation system
US4531117A (en) * 1983-07-05 1985-07-23 Minnesota Mining And Manufacturing Company Variable frequency RF electronic surveillance system
CA1234892A (en) * 1984-02-16 1988-04-05 Pierre Taillefer Security tag detection system
US4668942A (en) * 1984-11-19 1987-05-26 Progressive Dynamics, Inc. Signal analysis apparatus including recursive filter for electromagnetic surveillance system
SE9203479L (sv) * 1992-01-20 1993-07-21 Rso Corp Saett och anordning vid elektronisk identifiering
US5349339A (en) * 1992-04-07 1994-09-20 Actron Entwicklungs Ag Apparatus for the detection of labels employing subtraction of background signals
DE4436977A1 (de) * 1994-10-15 1996-04-18 Esselte Meto Int Gmbh Anlage zur elektronischen Artikelüberwachung

Also Published As

Publication number Publication date
DE59707635D1 (de) 2002-08-08
EP0837432B1 (de) 2002-07-03
DE19642985A1 (de) 1998-04-23
US6064296A (en) 2000-05-16
EP0837432A1 (de) 1998-04-22

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