DE69325099T2 - Verfahren und vorrichtung zur diebstahldetektion durch digitalsignalverarbeitung. - Google Patents

Verfahren und vorrichtung zur diebstahldetektion durch digitalsignalverarbeitung.

Info

Publication number
DE69325099T2
DE69325099T2 DE69325099T DE69325099T DE69325099T2 DE 69325099 T2 DE69325099 T2 DE 69325099T2 DE 69325099 T DE69325099 T DE 69325099T DE 69325099 T DE69325099 T DE 69325099T DE 69325099 T2 DE69325099 T2 DE 69325099T2
Authority
DE
Germany
Prior art keywords
signal processing
digital signal
theft detection
theft
detection
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
DE69325099T
Other languages
English (en)
Other versions
DE69325099D1 (de
Inventor
Christopher Paul
David Lundquist
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 DE69325099D1 publication Critical patent/DE69325099D1/de
Application granted granted Critical
Publication of DE69325099T2 publication Critical patent/DE69325099T2/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
    • G08B13/2465—Aspects related to the EAS system, e.g. system components other than tags
    • G08B13/2485—Simultaneous detection of multiple EAS 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
    • G08B13/2474—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
    • G08B13/2488—Timing issues, e.g. synchronising measures to avoid signal collision, with multiple emitters or a single emitter and receiver

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Burglar Alarm Systems (AREA)
DE69325099T 1992-06-15 1993-06-14 Verfahren und vorrichtung zur diebstahldetektion durch digitalsignalverarbeitung. Expired - Fee Related DE69325099T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/898,687 US5264829A (en) 1992-06-15 1992-06-15 Method and apparatus for theft detection using digital signal processing
PCT/US1993/005503 WO1993025984A1 (en) 1992-06-15 1993-06-14 Method and apparatus for theft detection using digital signal processing

Publications (2)

Publication Number Publication Date
DE69325099D1 DE69325099D1 (de) 1999-07-01
DE69325099T2 true DE69325099T2 (de) 1999-12-16

Family

ID=25409889

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69325099T Expired - Fee Related DE69325099T2 (de) 1992-06-15 1993-06-14 Verfahren und vorrichtung zur diebstahldetektion durch digitalsignalverarbeitung.
DE69331349T Expired - Fee Related DE69331349T2 (de) 1992-06-15 1993-06-14 Verfahren und Vorrichtung zur Diebstahldetektion mit digitaler Signalverarbeitung

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69331349T Expired - Fee Related DE69331349T2 (de) 1992-06-15 1993-06-14 Verfahren und Vorrichtung zur Diebstahldetektion mit digitaler Signalverarbeitung

Country Status (9)

Country Link
US (1) US5264829A (de)
EP (2) EP0646266B1 (de)
JP (1) JPH08506669A (de)
CN (1) CN1048566C (de)
AU (1) AU668407B2 (de)
BR (1) BR9306561A (de)
CA (1) CA2138273C (de)
DE (2) DE69325099T2 (de)
WO (1) WO1993025984A1 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5537094A (en) * 1995-01-27 1996-07-16 Sensormatic Electronics Corporation Method and apparatus for detecting an EAS marker using a neural network processing device
AU692696B2 (en) * 1995-04-07 1998-06-11 Minnesota Mining And Manufacturing Company Electronic article surveillance system with adaptative filtering and digital detection
US5798693A (en) * 1995-06-07 1998-08-25 Engellenner; Thomas J. Electronic locating systems
JP3803982B2 (ja) * 1995-08-23 2006-08-02 マスプロ電工株式会社 盗難防止システム
US5847650A (en) * 1996-10-04 1998-12-08 Knogo North America Inc. Theft resistant circuit assembly
DE19745953C2 (de) * 1997-10-17 2002-12-05 Anatoli Stobbe Diebstahl-Sicherungssystem sowie Verfahren zur automatischen Detektion und Identifikation eines Warensicherungsetiketts durch eine Basisstation
US5990791A (en) * 1997-10-22 1999-11-23 William B. Spargur Anti-theft detection system
NO981723D0 (no) 1998-04-16 1998-04-16 Instrutek Holding As System for overvÕking og kontroll av gjenstander eller personer
US6232878B1 (en) * 1999-05-20 2001-05-15 Checkpoint Systems, Inc. Resonant circuit detection, measurement and deactivation system employing a numerically controlled oscillator
JP2010030024A (ja) * 2008-07-31 2010-02-12 Makita Corp 電気機器
CN102110337B (zh) * 2011-03-01 2013-03-20 哈尔滨工程大学 超声波防盗空间预警方法
CN104091403B (zh) * 2014-06-30 2016-11-09 国家电网公司 一种待投电力电缆防盗报警装置
DE102015202960B4 (de) * 2015-02-18 2016-10-06 Siemens Aktiengesellschaft Analogeingangsschaltung, Verfahren zum Betrieb einer Analogeingangsschaltung und Baugruppe mit einer Analogeingangsschaltung
DE202020101812U1 (de) 2020-04-02 2020-04-17 Franz Gloß Sicherheitsvorrichtung für einen Kassenbereich

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4455550A (en) * 1980-11-06 1984-06-19 General Research Of Electronics, Inc. Detection circuit for a video intrusion monitoring apparatus
US4623877A (en) * 1983-06-30 1986-11-18 Knogo Corporation Method and apparatus for detection of targets in an interrogation zone
US5103209A (en) * 1989-01-09 1992-04-07 Checkpoint Systems, Inc. Electronic article surveillance system with improved differentiation
US5023598A (en) * 1990-01-02 1991-06-11 Pitney Bowes Inc. Digital signal processor for electronic article gates
US5300922A (en) * 1990-05-29 1994-04-05 Sensormatic Electronics Corporation Swept frequency electronic article surveillance system having enhanced facility for tag signal detection

Also Published As

Publication number Publication date
DE69325099D1 (de) 1999-07-01
CA2138273C (en) 2001-08-14
US5264829A (en) 1993-11-23
EP0646266A4 (de) 1995-08-02
CN1079835A (zh) 1993-12-22
DE69331349D1 (de) 2002-01-24
EP0907155A1 (de) 1999-04-07
AU4531493A (en) 1994-01-04
EP0646266B1 (de) 1999-05-26
BR9306561A (pt) 1999-01-12
CA2138273A1 (en) 1993-12-23
EP0907155B1 (de) 2001-12-12
EP0646266A1 (de) 1995-04-05
DE69331349T2 (de) 2002-08-14
CN1048566C (zh) 2000-01-19
JPH08506669A (ja) 1996-07-16
WO1993025984A1 (en) 1993-12-23
AU668407B2 (en) 1996-05-02

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Legal Events

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