BR9813377A - Disposição de antena e transmissor para sistema de eas - Google Patents

Disposição de antena e transmissor para sistema de eas

Info

Publication number
BR9813377A
BR9813377A BR9813377-2A BR9813377A BR9813377A BR 9813377 A BR9813377 A BR 9813377A BR 9813377 A BR9813377 A BR 9813377A BR 9813377 A BR9813377 A BR 9813377A
Authority
BR
Brazil
Prior art keywords
antenna
antenna system
transmission
transmitter arrangement
loop
Prior art date
Application number
BR9813377-2A
Other languages
English (en)
Inventor
Ming-Ren Lian
Thomas P Solaski
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 BR9813377A publication Critical patent/BR9813377A/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
    • G08B13/2468—Antenna in system and the related signal processing
    • G08B13/2477—Antenna or antenna activator circuit
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/12—Resonant antennas
    • H01Q11/14—Resonant antennas with parts bent, folded, shaped or screened or with phasing impedances, to obtain desired phase relation of radiation from selected sections of the antenna or to obtain desired polarisation effect
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H01Q7/005—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with variable reactance for tuning the antenna
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H01Q7/04—Screened antennas

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)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Near-Field Transmission Systems (AREA)
  • Transmitters (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

"DISPOSIçãO DE ANTENA E TRANSMISSOR PARA SISTEMA DE EAS" Um sistema de antena para um sistema de supervisão de artigo eletrónico, compreendendo: uma primeira alça de transmissão sincronável (12); uma segunda alça de transmissão sincronizável (14), as primeira e segunda alças de transmissão sendo dispostas para primeiro e segundo modos de operação, as alças de transmissão sendo acopladas em campo uma na outra tal que o sistema de antena para um dos modos de operação desintoniza o sistema de antena para o outro modo de operação; e uma bobina de compensação sincronizável (16) acoplada em campo a cada uma das primeira e segunda alças de transmissão, a bobina de compensação sincronizável permitindo o sistema de antena ser sintonizado para operação em um dos modos a uma primeira frequência de ressonância, e a despeito da desintonia, permitindo o sistema de antena ser sintonizado para operação no outro dos modos a uma segunda frequência de ressonância independentemente da sintonia para o primeiro modo de operação. A alça de compensação (16) envolve as primeira e segunda alças de transmissão (12, 14).
BR9813377-2A 1997-12-05 1998-11-25 Disposição de antena e transmissor para sistema de eas BR9813377A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/985,941 US5963173A (en) 1997-12-05 1997-12-05 Antenna and transmitter arrangement for EAS system
PCT/US1998/025249 WO1999030384A1 (en) 1997-12-05 1998-11-25 Antenna and transmitter arrangement for eas system

Publications (1)

Publication Number Publication Date
BR9813377A true BR9813377A (pt) 2000-10-10

Family

ID=25531931

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9813377-2A BR9813377A (pt) 1997-12-05 1998-11-25 Disposição de antena e transmissor para sistema de eas

Country Status (8)

Country Link
US (1) US5963173A (pt)
EP (1) EP1036424B1 (pt)
JP (1) JP4619532B2 (pt)
AU (1) AU747534B2 (pt)
BR (1) BR9813377A (pt)
CA (1) CA2312929C (pt)
DE (1) DE69841329D1 (pt)
WO (1) WO1999030384A1 (pt)

Families Citing this family (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6118378A (en) * 1997-11-28 2000-09-12 Sensormatic Electronics Corporation Pulsed magnetic EAS system incorporating single antenna with independent phasing
US6570541B2 (en) 1998-05-18 2003-05-27 Db Tag, Inc. Systems and methods for wirelessly projecting power using multiple in-phase current loops
US6388628B1 (en) * 1998-05-18 2002-05-14 Db Tag, Inc. Systems and methods for wirelessly projecting power using in-phase current loops
US6166706A (en) * 1998-11-04 2000-12-26 Checkpoint Systems, Inc. Rotating field antenna with a magnetically coupled quadrature loop
GB9915595D0 (en) * 1999-07-02 1999-09-01 Sadler Robin W Identification apparatus for reading moving tags in passageways
US7225712B2 (en) 2000-08-14 2007-06-05 Sd3, Llc Motion detecting system for use in a safety system for power equipment
US20030056853A1 (en) 2001-09-21 2003-03-27 Gass Stephen F. Router with improved safety system
US7377199B2 (en) * 2000-09-29 2008-05-27 Sd3, Llc Contact detection system for power equipment
US7707920B2 (en) 2003-12-31 2010-05-04 Sd3, Llc Table saws with safety systems
US7536238B2 (en) 2003-12-31 2009-05-19 Sd3, Llc Detection systems for power equipment
US7024975B2 (en) 2000-08-14 2006-04-11 Sd3, Llc Brake mechanism for power equipment
US20020017179A1 (en) 2000-08-14 2002-02-14 Gass Stephen F. Miter saw with improved safety system
US7836804B2 (en) 2003-08-20 2010-11-23 Sd3, Llc Woodworking machines with overmolded arbors
US8061245B2 (en) 2000-09-29 2011-11-22 Sd3, Llc Safety methods for use in power equipment
US6857345B2 (en) 2000-08-14 2005-02-22 Sd3, Llc Brake positioning system
US9927796B2 (en) 2001-05-17 2018-03-27 Sawstop Holding Llc Band saw with improved safety system
US9724840B2 (en) 1999-10-01 2017-08-08 Sd3, Llc Safety systems for power equipment
US6957601B2 (en) * 2000-08-14 2005-10-25 Sd3, Llc Translation stop for use in power equipment
US7600455B2 (en) 2000-08-14 2009-10-13 Sd3, Llc Logic control for fast-acting safety system
US7284467B2 (en) * 2000-08-14 2007-10-23 Sd3, Llc Apparatus and method for detecting dangerous conditions in power equipment
US8065943B2 (en) 2000-09-18 2011-11-29 Sd3, Llc Translation stop for use in power equipment
US7827890B2 (en) 2004-01-29 2010-11-09 Sd3, Llc Table saws with safety systems and systems to mount and index attachments
US8459157B2 (en) 2003-12-31 2013-06-11 Sd3, Llc Brake cartridges and mounting systems for brake cartridges
US7210383B2 (en) 2000-08-14 2007-05-01 Sd3, Llc Detection system for power equipment
US7712403B2 (en) 2001-07-03 2010-05-11 Sd3, Llc Actuators for use in fast-acting safety systems
DE10002311C1 (de) * 2000-01-20 2001-06-13 Skidata Ag Kommunikationsendgerät
US6826988B2 (en) 2000-09-29 2004-12-07 Sd3, Llc Miter saw with improved safety system
US6813983B2 (en) 2000-09-29 2004-11-09 Sd3, Llc Power saw with improved safety system
JP3498716B2 (ja) * 2001-02-09 2004-02-16 オムロン株式会社 アンテナ装置
US20030001739A1 (en) * 2001-06-29 2003-01-02 Robert Clucas Electronic article surveillance antenna for attachment to a vertical structure
US6567050B1 (en) * 2001-12-17 2003-05-20 Briggs James B Loop antenna compensator
US6590542B1 (en) * 2001-12-17 2003-07-08 James B. Briggs Double loop antenna
US8321302B2 (en) * 2002-01-23 2012-11-27 Sensormatic Electronics, LLC Inventory management system
US8339265B2 (en) 2002-01-09 2012-12-25 Sensormatic Electronics, Llc. Method of assigning and deducing the location of articles detected by multiple RFID antennae
JP2005519491A (ja) * 2002-01-09 2005-06-30 ミードウエストベココーポレーション 複数のｒｆアンテナを使用するインテリジェントステーションならびにこれを組み込んだ在庫制御システムおよび在庫制御方法
PT102739A (pt) * 2002-03-13 2003-09-30 Gantle Trading & Services Ld Sistema de antenas para um dispositivo de leitura de transponder em radiofrequencia
US6753821B2 (en) * 2002-04-22 2004-06-22 Wg Security Products, Inc. Method and arrangement of antenna system of EAS
US6752837B2 (en) 2002-06-28 2004-06-22 Hewlett-Packard Development Company, L.P. Security tags with a reversible optical indicator
CN100583554C (zh) * 2003-08-29 2010-01-20 精工爱普生株式会社 环形天线装置
GB0328359D0 (en) * 2003-12-06 2004-01-14 Telegesis Uk Ltd Radio frequency antenna
US7417599B2 (en) * 2004-02-20 2008-08-26 3M Innovative Properties Company Multi-loop antenna for radio frequency identification (RFID) communication
US7301459B2 (en) * 2004-05-11 2007-11-27 Sensormatic Electronics Corporation Closed loop transmitter control for power amplifier in an EAS system
US20070164845A1 (en) * 2004-12-21 2007-07-19 Checkpoint Systems, Inc. System and method for monitoring security systems
NL1028330C2 (nl) * 2005-02-18 2006-08-21 Nedap Nv Smart Shelf.
US20060202033A1 (en) * 2005-03-03 2006-09-14 Campero Richard J Apparatus for and method of using an intelligent network and RFID signal router
US8316156B2 (en) * 2006-02-17 2012-11-20 Intel-Ne, Inc. Method and apparatus for interfacing device drivers to single multi-function adapter
US20070296548A1 (en) * 2006-06-27 2007-12-27 Hall Stewart E Resonant circuit tuning system using magnetic field coupled reactive elements
US7570220B2 (en) * 2006-06-27 2009-08-04 Sensormatic Electronics Corporation Resonant circuit tuning system with dynamic impedance matching
US7651267B2 (en) * 2006-08-08 2010-01-26 Ford Global Technologies, Llc Sensor arrangement and method for using same
DE102007018059A1 (de) * 2007-04-17 2008-10-23 Kathrein-Werke Kg RFID-Antennen-System
DE102007018058A1 (de) * 2007-04-17 2008-10-23 Kathrein-Werke Kg RFID-Antennen-System
US7460073B2 (en) 2007-04-18 2008-12-02 Kathrein-Werke Kg RFID antenna system
US7852268B2 (en) 2007-04-18 2010-12-14 Kathrein-Werke Kg RFID antenna system
GB2461126B (en) * 2008-06-25 2010-09-29 Shearwell Data Ltd Antenna system
NZ591383A (en) 2008-09-04 2013-08-30 Allflex Usa Inc Combination full-duplex and half-duplex electronic identification tag
JP5307241B2 (ja) * 2009-06-16 2013-10-02 株式会社ビー・アンド・プラス 双方向伝送用コイルおよびこれを用いた双方向伝送装置
NZ599876A (en) * 2009-10-09 2013-11-29 Aleis Pty Ltd Radio frequency identification reader antenna having a dynamically adjustable q-factor
WO2011044585A1 (en) * 2009-10-09 2011-04-14 Allflex Usa, Inc. Hdx demodulator
ES2776023T3 (es) * 2009-11-04 2020-07-28 Allflex Usa Inc Antena de múltiples bucles de transmisión/recepción de cancelación de señal para un lector de identificación de radiofrecuencia
FR2954551B1 (fr) * 2009-12-21 2012-08-17 Commissariat Energie Atomique Dispositif d'echange de donnees sans contact securise entre un lecteur et une carte
US8362956B2 (en) * 2010-11-18 2013-01-29 Nader Behdad Electrically small, source direction resolving antennas
US20120139730A1 (en) * 2010-12-03 2012-06-07 Metrologic Instruments, Inc. Electronic article surveillance system
US20150090789A1 (en) * 2012-01-05 2015-04-02 Hid Global Gmbh Calculated compensated magnetic antennas for different frequencies
US8849229B2 (en) 2012-06-01 2014-09-30 Wisconsin Alumni Research Foundation Electrically small, super directive antennas
US9424724B2 (en) 2013-08-02 2016-08-23 Bibliotheca Rfid Library Systems Ag Single turn magnetic drive loop for electronic article surveillance

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3588905A (en) * 1967-10-05 1971-06-28 John H Dunlavy Jr Wide range tunable transmitting loop antenna
US3683389A (en) * 1971-01-20 1972-08-08 Corning Glass Works Omnidirectional loop antenna array
US4243980A (en) * 1978-02-17 1981-01-06 Lichtblau G J Antenna system for electronic security installations
US4260990A (en) * 1979-11-08 1981-04-07 Lichtblau G J Asymmetrical antennas for use in electronic security systems
US4647931A (en) * 1984-11-29 1987-03-03 Rca Corporation Dual frequency identification system
GB2180123B (en) * 1984-12-21 1989-01-18 Senezco Limited Transponder systems
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
US5103234A (en) * 1987-08-28 1992-04-07 Sensormatic Electronics Corporation Electronic article surveillance system
US5103235A (en) * 1988-12-30 1992-04-07 Checkpoint Systems, Inc. Antenna structure for an electronic article surveillance system
US5023600A (en) * 1990-04-10 1991-06-11 Sensormatic Electronics Corporation Electronic article surveillance system with adaptiveness for synchronization with companion systems
US5353011A (en) * 1993-01-04 1994-10-04 Checkpoint Systems, Inc. Electronic article security system with digital signal processing and increased detection range
ES2122209T3 (es) * 1993-07-13 1998-12-16 Actron Entwicklungs Ag Dispositivo de antena.
US5602556A (en) * 1995-06-07 1997-02-11 Check Point Systems, Inc. Transmit and receive loop antenna

Also Published As

Publication number Publication date
CA2312929C (en) 2006-07-11
DE69841329D1 (de) 2010-01-07
WO1999030384A1 (en) 1999-06-17
EP1036424A4 (en) 2001-01-24
US5963173A (en) 1999-10-05
AU2085499A (en) 1999-06-28
JP4619532B2 (ja) 2011-01-26
EP1036424B1 (en) 2009-11-25
CA2312929A1 (en) 1999-06-17
AU747534B2 (en) 2002-05-16
EP1036424A1 (en) 2000-09-20
JP2001526480A (ja) 2001-12-18

Similar Documents

Publication Publication Date Title
BR9813377A (pt) Disposição de antena e transmissor para sistema de eas
AU9026891A (en) Nmr frequency locking circuit
AR024054A1 (es) Disposicion de seguridad electronica de articulos
EP1090441A4 (en) LOW-POWER SWITCHED ANTENNA DIVERSITY SYSTEM
SE9703294L (sv) Radiokommunikationsenhet och radiotelefon innefattande radiokommunikationsenhet
BR9810748A (pt) Ressonadores baseados em substrato, ortogonalmente montados
BR9808996A (pt) Ressonador munido de um dispositivo ressonante e com um circuito de seleção para selecionar um modo de ressonância
WO1998023969A3 (de) ANORDNUNG ZUR ANKOPPLUNG EINES rf-SQUID AN EINEN SUPRALEITENDEN TANKSCHWINGKREIS
SE9802191D0 (sv) Device for tuning of a dielectric resonator
ATE361156T1 (de) Resonanzvorrichtung wie schläger oder krafterzeuger
Kotserzhinskii et al. Solid-state oscillators with quasi-optical resonance systems
Bespalov et al. Effect of geomagnetic pulsations on whistlers near the plasmapause
CA2350217A1 (en) Multiple loop antenna
Egan LOs share circuitry to synthesize 4 frequencies
Goldman Differential circuit minimizes detector distortion in PLLs
Artemev et al. Dynamic range of measurement of the detuning of microwave resonators
Dixon et al. Receiver system matches channels from 6 to 18 GHz
DE60006161D1 (de) Oszillator unter verwendung einer lc-resonanz-schaltung mit konzentrierten elementen
Peltonen Development of components and subsystems for low noise receivers at micro-and millimeter waves
Jackson et al. YIG-tuned integrated devices
Borodkin et al. Two-frequency two-diode quasi-optical millimeter-wave oscillator
Dea et al. Observations of ELF signatures arising from space vehicle disturbances of the ionosphere
Semenko Coherent power-combining of microwave oscillators by means of coupled phase-locked loops
Gorobets et al. Traveling-wave-resonator slot antenna
Dyshko et al. Numerical studies of the induced axisymmetric electrical oscillations of a perfectly conducting prolate spheroid

Legal Events

Date Code Title Description
B25A Requested transfer of rights approved

Free format text: TYCO ACQUISITION CORP. XXIV (US)

B25D Requested change of name of applicant approved
B25G Requested change of headquarter approved
B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: REFERENTE A 6A,7A E 8A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1910 DE 14/08/2007.