CA2073421C - Systeme de controle electronique d'inventaire - Google Patents

Systeme de controle electronique d'inventaire Download PDF

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Publication number
CA2073421C
CA2073421C CA002073421A CA2073421A CA2073421C CA 2073421 C CA2073421 C CA 2073421C CA 002073421 A CA002073421 A CA 002073421A CA 2073421 A CA2073421 A CA 2073421A CA 2073421 C CA2073421 C CA 2073421C
Authority
CA
Canada
Prior art keywords
article
sensors
responder assembly
zones
user
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
CA002073421A
Other languages
English (en)
Other versions
CA2073421A1 (fr
Inventor
Graeme R. Mann
Rick L. Naylor
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3775577&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2073421(C) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of CA2073421A1 publication Critical patent/CA2073421A1/fr
Application granted granted Critical
Publication of CA2073421C publication Critical patent/CA2073421C/fr
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
    • 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
    • G08B13/2408—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 ferromagnetic 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
CA002073421A 1991-07-25 1992-07-09 Systeme de controle electronique d'inventaire Expired - Lifetime CA2073421C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPK742591 1991-07-25
AUPK7425 1991-07-25

Publications (2)

Publication Number Publication Date
CA2073421A1 CA2073421A1 (fr) 1993-01-26
CA2073421C true CA2073421C (fr) 2003-09-23

Family

ID=3775577

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002073421A Expired - Lifetime CA2073421C (fr) 1991-07-25 1992-07-09 Systeme de controle electronique d'inventaire

Country Status (7)

Country Link
EP (1) EP0526038B1 (fr)
JP (1) JP3269573B2 (fr)
KR (1) KR100293835B1 (fr)
CA (1) CA2073421C (fr)
DE (1) DE69227224T2 (fr)
ES (1) ES2121824T3 (fr)
HK (1) HK1014285A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2728992B1 (fr) * 1994-12-30 1997-03-28 Int Du Libre Paiement Sa Procede et dispositif pour determiner l'unicite ou la pluralite de cibles magnetiques antivol magnetiques dans un volume de detection predetermine
US6369709B1 (en) 1998-04-10 2002-04-09 3M Innovative Properties Company Terminal for libraries and the like
US6154137A (en) 1998-06-08 2000-11-28 3M Innovative Properties Company Identification tag with enhanced security
ES2529584T3 (es) 1998-08-14 2015-02-23 3M Innovative Properties Company Método para interrogar un envase que lleva una etiqueta de RFID
AU762495B2 (en) 1998-08-14 2003-06-26 3M Innovative Properties Company Application for a radio frequency identification system
US6424262B2 (en) 1998-08-14 2002-07-23 3M Innovative Properties Company Applications for radio frequency identification systems
CA2338522C (fr) 1998-08-14 2009-04-07 3M Innovative Properties Company Applications pour des systemes d'identification de frequence radio
CN106956908A (zh) * 2017-03-30 2017-07-18 深圳华视电子读写设备有限公司 证件传输设备及证件传输设备的防重叠装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3423674A (en) * 1965-06-29 1969-01-21 Nytronics Inc Theft-detection system for library use including a plurality of hall cells
US4881061A (en) * 1988-12-05 1989-11-14 Minnesota Mining And Manufacturing Company Article removal control system

Also Published As

Publication number Publication date
CA2073421A1 (fr) 1993-01-26
JPH05238517A (ja) 1993-09-17
KR100293835B1 (ko) 2001-09-17
ES2121824T3 (es) 1998-12-16
DE69227224T2 (de) 1999-05-12
EP0526038B1 (fr) 1998-10-07
HK1014285A1 (en) 1999-09-24
JP3269573B2 (ja) 2002-03-25
KR930002931A (ko) 1993-02-23
EP0526038A1 (fr) 1993-02-03
DE69227224D1 (de) 1998-11-12

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