BR0207122A - Sincronização sem fio automática de sistemas de vigilância de artigos eletrônicos - Google Patents

Sincronização sem fio automática de sistemas de vigilância de artigos eletrônicos

Info

Publication number
BR0207122A
BR0207122A BR0207122-3A BR0207122A BR0207122A BR 0207122 A BR0207122 A BR 0207122A BR 0207122 A BR0207122 A BR 0207122A BR 0207122 A BR0207122 A BR 0207122A
Authority
BR
Brazil
Prior art keywords
synchronous phase
phase link
wireless
surveillance systems
synchronization
Prior art date
Application number
BR0207122-3A
Other languages
English (en)
Inventor
Thomas J Frederick
Jeffrey Oakes
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 BR0207122A publication Critical patent/BR0207122A/pt

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
    • G08B13/2488—Timing issues, e.g. synchronising measures to avoid signal collision, with multiple emitters or a single emitter and receiver
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/07—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop using several loops, e.g. for redundant clock signal generation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
    • H03L7/0991—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider
    • H03L7/0992—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider comprising a counter or a frequency divider

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Burglar Alarm Systems (AREA)
  • Transmitters (AREA)

Abstract

"SINCRONIZAçãO SEM FIO AUTOMáTICA DE SISTEMAS DE VIGILâNCIA DE ARTIGOS ELETRôNICOS". é fornecido um sistema de elo de fase síncrona sem fio distribuído para sincronizar a forma de onda de modulação da portadora de transmissão, como regulação de pulso de transmissor em um sistema EAS pulsado e a função de varredura de trânsito para sincronização RF de varredura. Para remover o efeito de ruído de fase no sinal de linha de energia, um elo de fase síncrona é utilizado para filtrar esse sinal. A saída filtrada é utilizada como referência para um segundo elo de fase síncrona ligado em um oscilador numericamente controlado e o sinal recebido para fornecer um algoritmo de elo de fase síncrona distribuído isto é sem fio, e sincroniza automaticamente sistemas EAS adjacentes.
BR0207122-3A 2001-02-08 2002-01-25 Sincronização sem fio automática de sistemas de vigilância de artigos eletrônicos BR0207122A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US26942501P 2001-02-08 2001-02-08
PCT/US2002/002485 WO2002063771A2 (en) 2001-02-08 2002-01-25 Automatic wireless synchronization of electronic article surveillance systems

Publications (1)

Publication Number Publication Date
BR0207122A true BR0207122A (pt) 2004-02-10

Family

ID=23027181

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0207122-3A BR0207122A (pt) 2001-02-08 2002-01-25 Sincronização sem fio automática de sistemas de vigilância de artigos eletrônicos

Country Status (10)

Country Link
US (1) US7212117B2 (pt)
EP (1) EP1393445B1 (pt)
CN (1) CN100566172C (pt)
AR (1) AR032652A1 (pt)
AT (1) ATE467273T1 (pt)
BR (1) BR0207122A (pt)
CA (1) CA2437793C (pt)
DE (1) DE60236279D1 (pt)
ES (1) ES2348489T3 (pt)
WO (1) WO2002063771A2 (pt)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6812843B2 (en) * 2002-03-11 2004-11-02 Sensormatic Electronics Corporation Auto-phasing synchronization for pulsed electronic article surveillance systems
WO2003088169A2 (en) 2002-04-11 2003-10-23 Sensormatic Electronics Corporation System and method for optimizing range of an electronic article surveillance system
DE60313812T3 (de) 2003-04-02 2019-04-11 Christopher Julian Travis Methode zur erzeugung eines oszillator-taktsignales
CA2621490C (en) * 2005-09-09 2014-12-16 Sensormatic Electronics Corporation Eas system providing synchronized transmission
CA2655571A1 (en) 2006-06-27 2008-01-03 Sensormatic Electronics Corporation Wireless synchronized operation of pulsed eas systems
US7535338B2 (en) * 2006-06-27 2009-05-19 Sensormatic Electronics Corporation Wireless synchronized operation of pulsed EAS systems
US8102259B2 (en) 2006-10-17 2012-01-24 Honeywell International Inc. Fluorescent light immunity through synchronous sampling
US20080107219A1 (en) * 2006-11-07 2008-05-08 Sensormatic Electronics Corporation Electronic articles surveillance system synchronization using global positioning satellite signal
EP2053755A1 (en) * 2007-10-25 2009-04-29 Commissariat A L'energie Atomique Method of and apparatus for synchronisation
US8339264B2 (en) * 2008-02-22 2012-12-25 Xiao Hui Yang Control unit for an EAS system
US8106777B2 (en) * 2008-05-22 2012-01-31 Sensormatic Electronics, LLC Method and system to negate interference from adjacent transmitters in an electronic article surveillance system
US20100148932A1 (en) * 2008-12-17 2010-06-17 Sensormatic Electronics Corporation Wireless electronic article surveillance synchronization system and method with data transfer
US9356609B1 (en) * 2014-12-19 2016-05-31 Telefonaktiebolaget L M Ericsson (Publ) Phase switching PLL and calibration method
US10121362B1 (en) * 2017-08-15 2018-11-06 Tyco Fire & Security Gmbh Networked electronic article surveillance systems with synchronized tracking
WO2020018501A1 (en) * 2018-07-17 2020-01-23 Sensormatic Electronics, LLC Power supply with wirelessly supported phase offset control for acousto-magnetic systems

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106007A (en) * 1974-07-17 1978-08-08 New England Power Service Company Method and apparatus for transmitting intelligence over a carrier wave
US4622543A (en) 1984-03-22 1986-11-11 Anderson Iii Philip M Surveillance system having acoustic magnetomechanical marker
US4658241A (en) 1985-09-17 1987-04-14 Allied Corporation Surveillance system including transmitter and receiver synchronized by power line zero crossings
US4675658A (en) 1985-09-17 1987-06-23 Allied Corporation System including tuned AC magnetic field transmit antenna and untuned AC magnetic field receive antenna
US4667185A (en) * 1985-12-06 1987-05-19 Minnesota Mining And Manufacturing Company Wireless synchronization system for electronic article surveillance system
DK161227C (da) * 1986-01-27 1991-11-25 Antonson Security Denmark Aps Apparat til synkronisering af tyveridetektorer
NL8900658A (nl) * 1989-03-17 1990-10-16 Nedap Nv Hoogfrequent winkeldiefstaldetectiesysteem volgens het transmissieprincipe.
US5371490A (en) * 1989-03-22 1994-12-06 Actron Entwicklungs Ag System for electronic safeguarding against burglary using multiple transmitters and receivers
US5023600A (en) 1990-04-10 1991-06-11 Sensormatic Electronics Corporation Electronic article surveillance system with adaptiveness for synchronization with companion systems
US5337040A (en) * 1991-10-31 1994-08-09 Actron Entwicklungs Ag Detection apparatus for shoplifting-preventing labels
EP0561062A1 (en) * 1992-03-17 1993-09-22 Moisei Samuel Granovsky Method and electromagnetic security system for detection of protected objects in a surveillance zone
US5353011A (en) * 1993-01-04 1994-10-04 Checkpoint Systems, Inc. Electronic article security system with digital signal processing and increased detection range
JPH0823568A (ja) 1994-07-08 1996-01-23 Nec Corp 無線フレーム同期方式
US5699045A (en) * 1996-06-06 1997-12-16 Sensormatic Electronics Corporation Electronic article surveillance system with cancellation of interference signals
US5995002A (en) * 1997-11-28 1999-11-30 Sensormatic Electronics Corporation Line synchronized delays for multiple pulsed EAS systems
US6201469B1 (en) 1999-02-12 2001-03-13 Sensormatic Electronics Corporation Wireless synchronization of pulsed magnetic EAS systems
US6320507B1 (en) * 2000-04-07 2001-11-20 Sensormatic Electronics Corporation Method for synchronization between systems

Also Published As

Publication number Publication date
US7212117B2 (en) 2007-05-01
US20020135480A1 (en) 2002-09-26
EP1393445A2 (en) 2004-03-03
AR032652A1 (es) 2003-11-19
CN1529940A (zh) 2004-09-15
CA2437793A1 (en) 2002-08-15
ATE467273T1 (de) 2010-05-15
WO2002063771A3 (en) 2003-12-11
DE60236279D1 (de) 2010-06-17
CN100566172C (zh) 2009-12-02
WO2002063771A2 (en) 2002-08-15
ES2348489T3 (es) 2010-12-07
CA2437793C (en) 2010-07-20
EP1393445B1 (en) 2010-05-05

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Legal Events

Date Code Title Description
B25A Requested transfer of rights approved

Owner name: SENSORMATIC ELECTRONICS, LLC (US)

Free format text: TRANSFERIDO POR INCORPORACAO DE: SENSORMATIC ELECTRONICS CORPORATION

B15K Others concerning applications: alteration of classification

Free format text: AS CLASSIFICACOES ANTERIORES ERAM: H03L 7/07 , G08B 13/24

Ipc: G08B 13/24 (2006.01)

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: INDEFIRO O PEDIDO DE ACORDO COM OS ARTIGOS 22 E ART. 25 DA LPI

B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL.