DE68925453D1 - Verfahren zur Reduzierung der Anzahl der Falschalarme und zur Bewegungssinnbestimmung - Google Patents

Verfahren zur Reduzierung der Anzahl der Falschalarme und zur Bewegungssinnbestimmung

Info

Publication number
DE68925453D1
DE68925453D1 DE68925453T DE68925453T DE68925453D1 DE 68925453 D1 DE68925453 D1 DE 68925453D1 DE 68925453 T DE68925453 T DE 68925453T DE 68925453 T DE68925453 T DE 68925453T DE 68925453 D1 DE68925453 D1 DE 68925453D1
Authority
DE
Germany
Prior art keywords
sense
procedure
determining
reducing
movement
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
DE68925453T
Other languages
English (en)
Other versions
DE68925453T2 (de
Inventor
Walter J C O Minnesota Remine
Anthony M C O Minnesota Belka
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
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Application granted granted Critical
Publication of DE68925453D1 publication Critical patent/DE68925453D1/de
Publication of DE68925453T2 publication Critical patent/DE68925453T2/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
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • 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
    • 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
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/18—Prevention or correction of operating errors
    • G08B29/185—Signal analysis techniques for reducing or preventing false alarms or for enhancing the reliability of the system
DE68925453T 1988-09-16 1989-09-14 Verfahren zur Reduzierung der Anzahl der Falschalarme und zur Bewegungssinnbestimmung Expired - Fee Related DE68925453T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/245,781 US4888579A (en) 1988-09-16 1988-09-16 False alarm minimization and direction determination methods

Publications (2)

Publication Number Publication Date
DE68925453D1 true DE68925453D1 (de) 1996-02-29
DE68925453T2 DE68925453T2 (de) 1996-08-22

Family

ID=22928046

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68925453T Expired - Fee Related DE68925453T2 (de) 1988-09-16 1989-09-14 Verfahren zur Reduzierung der Anzahl der Falschalarme und zur Bewegungssinnbestimmung

Country Status (7)

Country Link
US (1) US4888579A (de)
EP (1) EP0364107B1 (de)
JP (1) JPH02121090A (de)
KR (1) KR0133867B1 (de)
AU (1) AU606295B2 (de)
CA (1) CA1317653C (de)
DE (1) DE68925453T2 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5083111A (en) * 1990-11-26 1992-01-21 Sensormatic Electronics Corporation Jamming apparatus for electronic article surveillance systems
DE69230171T2 (de) * 1991-04-03 2000-04-13 Integrated Silicon Design Pty Warensortiersystem
DE4200082A1 (de) * 1992-01-03 1993-07-08 Minnesota Mining & Mfg Vorrichtung und verfahren zum erkennen eines magnetisierbaren markierungselementes
KR19980703681A (ko) * 1995-04-07 1998-12-05 워렌리차드보비 적응 필터링 기능 및 디지털 검출 기능을 갖는 전자식 물체감시 시스템
US5708423A (en) * 1995-05-09 1998-01-13 Sensormatic Electronics Corporation Zone-Based asset tracking and control system
US5661457A (en) * 1995-06-19 1997-08-26 Sensormatic Electronics Corporation Directional antenna configuration for asset tracking system
DE19647905A1 (de) * 1996-11-20 1998-05-28 Meto International Gmbh Vorrichtung zur Überwachung eines elektronischen Sicherungselementes in einer Abfragezone
US6121878A (en) * 1998-05-01 2000-09-19 Intermec Ip Corp. System for controlling assets
DE60012202T2 (de) * 1999-10-08 2005-08-04 Activerf Ltd. Verbesserungen in Bezug auf Sicherheiteinrichtungen
US6373389B1 (en) * 2000-04-21 2002-04-16 Usm Systems, Ltd. Event driven information system
US8148989B2 (en) * 2002-03-11 2012-04-03 Keith Kopp Ferromagnetic detection enhancer compatible with magnetic resonance
US7489128B2 (en) * 2002-03-11 2009-02-10 Kopp Keith A MRI protector
GB2395276B (en) * 2002-11-12 2006-03-08 Qinetiq Ltd Ferromagnetic object detector
JP3917062B2 (ja) * 2002-11-21 2007-05-23 株式会社日立製作所 防犯システム及びその誤動作抑止方法
US7667602B2 (en) * 2007-01-19 2010-02-23 Wal-Mart Stores, Inc. Multi-directional RFID reader for controlling inventory and shelf stock
US20080278320A1 (en) 2007-05-07 2008-11-13 Sensormatic Electronics Corporation Method and system for reduction of electronic article surveillance system false alarms
US9135481B2 (en) 2013-03-14 2015-09-15 Wal-Mart Stores, Inc. Method and apparatus pertaining to installation of an RFID-tag reader system
US9158950B2 (en) 2013-03-14 2015-10-13 Wal-Mart Stores, Inc. Method and apparatus pertaining to use of multiple sessions with RFID tags
CN108831131A (zh) * 2018-06-28 2018-11-16 北京百悟科技有限公司 一种报警事件的处理方法、装置及计算机可读存储介质
GB2622022A (en) * 2022-08-31 2024-03-06 Sekura Global Ip Llp Method for triggering a security tag

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3058059A (en) * 1959-08-12 1962-10-09 Gen Motors Corp Electromagnetic metal detector
US3665449A (en) * 1969-07-11 1972-05-23 Minnesota Mining & Mfg Method and apparatus for detecting at a distance the status and identity of objects
US3617874A (en) * 1970-04-13 1971-11-02 Foerster Friedrich M O Magnetic leakage field flaw detector utilizing two ring core sensors
US3740742A (en) * 1971-05-11 1973-06-19 T Thompson Method and apparatus for actuating an electric circuit
JPS5411826Y2 (de) * 1971-08-09 1979-05-25
US3938125A (en) * 1974-02-20 1976-02-10 Minnesota Mining And Manufacturing Company Antipilferage system and marker therefor
GB1548771A (en) * 1976-11-05 1979-07-18 Spirig Ernst Intruder alarm systems
US4135183A (en) * 1977-05-24 1979-01-16 Minnesota Mining And Manufacturing Company Antipilferage system utilizing "figure-8" shaped field producing and detector coils
CA1138955A (en) * 1979-09-14 1983-01-04 Edward R. Fearon Anti-shoplifting system
US4272762A (en) * 1979-09-17 1981-06-09 Gte Laboratories Incorporated Exit-entry sensing apparatus
US4309697A (en) * 1980-10-02 1982-01-05 Sensormatic Electronics Corporation Magnetic surveillance system with odd-even harmonic and phase discrimination
US4535323A (en) * 1982-03-15 1985-08-13 Progressive Dynamics, Inc. Preamplifying and signal processing method and apparatus for theft detection systems
US4524350A (en) * 1982-03-15 1985-06-18 Progressive Dynamics, Inc. Detection logic and signal processing method and apparatus for theft detection systems
DE3380326D1 (en) * 1982-03-15 1989-09-07 Progressive Dynamics Method and apparatus for theft detection systems
DK148106C (da) * 1983-04-12 1987-10-19 2 M Security System Aps Tyverisikringsanlaeg, navnlig til butiksarealer
US4531117A (en) * 1983-07-05 1985-07-23 Minnesota Mining And Manufacturing Company Variable frequency RF electronic surveillance system
US4609911A (en) * 1983-07-05 1986-09-02 Minnesota Mining And Manufacturing Company Variable frequency RF electronic surveillance system
US4565996A (en) * 1984-02-06 1986-01-21 Mrs. Lawrence Israel Range limited coherent frequency doppler surveillance system
CA1234892A (en) * 1984-02-16 1988-04-05 Pierre Taillefer Security tag detection system
US4639716A (en) * 1984-11-19 1987-01-27 Ici Americas Inc. Alarm packet system
US4686513A (en) * 1985-09-30 1987-08-11 Sensormatic Electronics Corporation Electronic surveillance using self-powered article attached tags
US4697170A (en) * 1985-10-31 1987-09-29 Minnesota Mining And Manufacturing Company Method for minimizing false alarms and electronic noise in electronic article surveillance systems.
US4720701A (en) * 1986-01-02 1988-01-19 Lichtblau G J System with enhanced signal detection and discrimination with saturable magnetic marker
JPS6350003A (ja) * 1986-08-20 1988-03-02 Toshiba Corp 磁気共鳴イメ−ジング装置用磁石装置
DE3632316A1 (de) * 1986-09-23 1988-03-31 Siemens Ag Fahrzeugdetektor

Also Published As

Publication number Publication date
DE68925453T2 (de) 1996-08-22
EP0364107B1 (de) 1996-01-17
KR900005360A (ko) 1990-04-14
AU606295B2 (en) 1991-01-31
US4888579A (en) 1989-12-19
KR0133867B1 (ko) 1998-04-23
AU4001689A (en) 1990-03-22
CA1317653C (en) 1993-05-11
JPH02121090A (ja) 1990-05-08
EP0364107A1 (de) 1990-04-18

Similar Documents

Publication Publication Date Title
DE68925453D1 (de) Verfahren zur Reduzierung der Anzahl der Falschalarme und zur Bewegungssinnbestimmung
DE68928033D1 (de) Stereosynthesizer und entsprechendes verfahren
DE69026014T2 (de) Feueralarmsystem
KR900014898A (ko) 지하도체의 위치 및 방향을 결정하는 방법 및 장치
ATA127387A (de) Brandmeldeanlage und verfahren für dieselbe
DE69303368T2 (de) Indikatorband und verfahren
DE3890288T1 (de) Erfassung von diamanten
DE69030799T2 (de) Feueralarmsystem sowie Verfahren dazu und Umgebungsmonitor
DE68916588D1 (de) Verfahren und Gerät zur Feststellung von Gasen.
DE69033872T2 (de) Messgerät und Verfahren
DE69320281D1 (de) Verfahren zur Überprüfung des Gewichtes von Teigabschnitten
DE69329463D1 (de) Verfahren und einrichtung zur erkennung der anwesenheit der gesandten informationen
DE68926594D1 (de) Ultraschallvorrichtung zur Feststellung von Fehlstellen
DE69322103D1 (de) Auswerteverfahren und -geraet der seismik
DE68928471T2 (de) Erkennungs- und Analysesystem von runden Objekten
FI103368B1 (fi) Paloilmoitin
DE68925286T2 (de) Falschzwirnverfahren
DK18390A (da) Navigationssystem og -fremgangsmåde
DE69027742D1 (de) System und Verfahren zur Wiederaufnahme mit Überprüfung des Operationsmodus der Zentraleinheit
DE3855509T2 (de) Multiprozessorsystem und zugehöriges Verfahren
DE69028959D1 (de) Verfahren und Systeme zur Lagebestimmung
KR870002758U (ko) 민방공용 싸이렌의 오경보 차단장치
SE8900945D0 (sv) System foer detektering av lavinoffer
DK5790D0 (da) Selvprogrammerende alarmanlaeg
IT215922Z2 (it) Struttura modulare per la realizzazione di controsoffittature e/o contropareti

Legal Events

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