SE7901420L - Antennsystem for elektroniska sekerhetssystem - Google Patents

Antennsystem for elektroniska sekerhetssystem

Info

Publication number
SE7901420L
SE7901420L SE7901420A SE7901420A SE7901420L SE 7901420 L SE7901420 L SE 7901420L SE 7901420 A SE7901420 A SE 7901420A SE 7901420 A SE7901420 A SE 7901420A SE 7901420 L SE7901420 L SE 7901420L
Authority
SE
Sweden
Prior art keywords
antenna
loop
electronic security
substantially identical
phase
Prior art date
Application number
SE7901420A
Other languages
English (en)
Other versions
SE439850B (sv
Original Assignee
Lichtblau G J
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 Lichtblau G J filed Critical Lichtblau G J
Publication of SE7901420L publication Critical patent/SE7901420L/sv
Publication of SE439850B publication Critical patent/SE439850B/sv

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
    • G08B13/2471—Antenna signal processing by receiver or emitter
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
    • G01S13/767—Responders; Transponders
    • 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
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Burglar Alarm Systems (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Alarm Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Near-Field Transmission Systems (AREA)
SE7901420A 1978-02-17 1979-02-16 Antennsystem for elektroniska sekerhetssystem SE439850B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/878,753 US4243980A (en) 1978-02-17 1978-02-17 Antenna system for electronic security installations

Publications (2)

Publication Number Publication Date
SE7901420L true SE7901420L (sv) 1979-08-18
SE439850B SE439850B (sv) 1985-07-01

Family

ID=25372764

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7901420A SE439850B (sv) 1978-02-17 1979-02-16 Antennsystem for elektroniska sekerhetssystem

Country Status (13)

Country Link
US (1) US4243980A (sv)
JP (2) JPS54115099A (sv)
AU (1) AU531513B2 (sv)
CA (1) CA1138990A (sv)
DE (1) DE2904978A1 (sv)
DK (1) DK156857C (sv)
ES (1) ES477673A1 (sv)
FR (1) FR2427697A1 (sv)
GB (1) GB2014796B (sv)
IT (1) IT1118373B (sv)
MX (1) MX147098A (sv)
SE (1) SE439850B (sv)
ZA (1) ZA79542B (sv)

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US4751516A (en) * 1985-01-10 1988-06-14 Lichtblau G J Antenna system for magnetic and resonant circuit detection
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US4779077A (en) * 1987-04-13 1988-10-18 Lichtblau G J Continuously armed high reliability pulse train processor
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WO1989007347A1 (en) * 1988-02-04 1989-08-10 Uniscan Ltd. Magnetic field concentrator
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DE4200082A1 (de) * 1992-01-03 1993-07-08 Minnesota Mining & Mfg Vorrichtung und verfahren zum erkennen eines magnetisierbaren markierungselementes
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US5404147A (en) * 1992-10-28 1995-04-04 Sensormatic Electronics Corporation EAS system loop antenna having three loops of different area
US5387900A (en) * 1992-11-19 1995-02-07 Sensormatic Electronics Corporation EAS system with improved processing of antenna signals
GB9305085D0 (en) * 1993-03-12 1993-04-28 Esselte Meto Int Gmbh Electronic article surveillance system with enhanced geometric arrangement
ATE169776T1 (de) * 1993-07-13 1998-08-15 Actron Entwicklungs Ag Antennenvorrichtung
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US5694139A (en) * 1994-06-28 1997-12-02 Sony Corporation Short-distance communication antenna and methods of manufacturing and using the short-distance communication antenna
JP3966556B2 (ja) * 1995-05-30 2007-08-29 センサーマティック・エレクトロニクス・コーポレーション 改良された呼びかけ磁界分布を提供するためのｅａｓ装置アンテナ構造
US5653192A (en) * 1996-03-06 1997-08-05 Alfa Laval Agri Inc. Livestock identification apparatus
CA2251326C (en) * 1996-04-10 2003-06-17 Sentry Technology Corporation Electronic article surveillance system
US5914692A (en) * 1997-01-14 1999-06-22 Checkpoint Systems, Inc. Multiple loop antenna with crossover element having a pair of spaced, parallel conductors for electrically connecting the multiple loops
DE19727930B4 (de) * 1997-07-01 2004-05-27 Anatoli Stobbe Vorrichtung zur Identifizierung von an sportlichen Wettbewerben teilnehmenden Personen oder Tieren
US5963173A (en) * 1997-12-05 1999-10-05 Sensormatic Electronics Corporation Antenna and transmitter arrangement for EAS system
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
FR2781088B1 (fr) * 1998-07-08 2000-10-20 Roland Wehrlen Dispositif d'antennes passives dephasees adaptables exterieurement ou interieurement pour telephones h.f portables pour la protection electromagnetique h.f des utilisateurs
JP2000151257A (ja) * 1998-11-12 2000-05-30 Sofueru:Kk 電磁波送受信用アンテナ構造
EP1109123B1 (de) * 1999-12-16 2010-02-24 Infineon Technologies AG Spulenanordnung für induktive kontaktlose Karten- und ID-Systeme
JP3498716B2 (ja) 2001-02-09 2004-02-16 オムロン株式会社 アンテナ装置
GB2376801B (en) * 2001-06-22 2005-10-19 * Motorola Israel Limited R F Radiators and Transmitters
JP2004227185A (ja) * 2003-01-21 2004-08-12 Toshiba Corp アンテナユニットとカード処理システム
US7026939B2 (en) * 2003-02-10 2006-04-11 Phase Iv Engineering, Inc. Livestock data acquisition and collection
US7019651B2 (en) * 2003-06-16 2006-03-28 Sensormatic Electronics Corporation EAS and RFID systems incorporating field canceling core antennas
JP4032014B2 (ja) * 2003-07-18 2008-01-16 リンテック株式会社 磁界検出用アンテナ、同アンテナを用いる検知タグ検出用ゲート
US7417599B2 (en) * 2004-02-20 2008-08-26 3M Innovative Properties Company Multi-loop antenna for radio frequency identification (RFID) communication
JP2006025363A (ja) * 2004-07-09 2006-01-26 Nippon Signal Co Ltd:The リーダライタ用アンテナ及び物品管理システム
US7591415B2 (en) * 2004-09-28 2009-09-22 3M Innovative Properties Company Passport reader for processing a passport having an RFID element
FR2879831B1 (fr) * 2004-12-21 2008-07-11 Tagsys Sa Agencement d'antennes
US20100066614A1 (en) * 2006-11-21 2010-03-18 Pioneer Corporation Communicating apparatus
JP2010529564A (ja) * 2007-06-08 2010-08-26 チエツクポイント システムズ， インコーポレーテツド 動的ｅａｓ検出システムおよび方法
US8933790B2 (en) * 2007-06-08 2015-01-13 Checkpoint Systems, Inc. Phase coupler for rotating fields
EP2065973A1 (en) * 2007-11-28 2009-06-03 Stichting Astron A magnetic radiator arranged with decoupling means
CN101285866B (zh) * 2008-05-23 2011-08-24 杭州电子科技大学 电子软标签检测传感器
DE102010027639B4 (de) 2010-07-19 2023-03-30 Sew-Eurodrive Gmbh & Co Kg Spuleneinrichtung und Spulenanordnung
DE102011014887A1 (de) * 2011-03-23 2012-09-27 Sew-Eurodrive Gmbh & Co. Kg Anlage mit einem stationären Teil und einem dazu relativ bewegbar angeordneten Mobilteil
DE102011103318A1 (de) * 2011-05-27 2012-12-13 Paul Vahle Gmbh & Co. Kg Induktives kontaktloses Energie- und Datenübertragungssystem
US8576114B2 (en) * 2011-06-24 2013-11-05 Thales Canada Inc. Location of a transponder center point
US8864599B2 (en) * 2011-07-18 2014-10-21 Swing-Wright, Llc Teaching aid
RU2630894C2 (ru) * 2015-03-16 2017-09-14 Валерий Николаевич Фролов Способ радиолокационного обнаружения для технических средств охраны
CN114424207B (zh) * 2019-09-19 2024-11-01 胡斯华纳有限公司 无线识别标签和对应的读取器

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Publication number Priority date Publication date Assignee Title
FR763681A (fr) * 1933-11-10 1934-05-04 Procédé de repérage des objets par modification d'un champ magnétique
US2366195A (en) * 1942-11-23 1945-01-02 Standard Telephones Cables Ltd Antenna array
US2550688A (en) * 1949-03-19 1951-05-01 Rca Corp Metal detection apparatus
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US3810147A (en) * 1971-12-30 1974-05-07 G Lichtblau Electronic security system
US3967161A (en) * 1972-06-14 1976-06-29 Lichtblau G J A multi-frequency resonant tag circuit for use with an electronic security system having improved noise discrimination
US3967262A (en) * 1975-04-30 1976-06-29 The United States Of America As Represented By The Secretary Of The Army Line integrated combination magnetic and strain line sensor
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US4135183A (en) * 1977-05-24 1979-01-16 Minnesota Mining And Manufacturing Company Antipilferage system utilizing "figure-8" shaped field producing and detector coils
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Also Published As

Publication number Publication date
GB2014796A (en) 1979-08-30
DK66779A (da) 1979-08-18
MX147098A (es) 1982-10-05
ES477673A1 (es) 1980-04-01
JPS54115099A (en) 1979-09-07
FR2427697B1 (sv) 1985-02-08
JPS59118084U (ja) 1984-08-09
GB2014796B (en) 1982-08-04
JPS6037675Y2 (ja) 1985-11-09
AU531513B2 (en) 1983-08-25
DE2904978A1 (de) 1979-08-23
SE439850B (sv) 1985-07-01
ZA79542B (en) 1980-03-26
US4243980A (en) 1981-01-06
DE2904978C2 (sv) 1988-03-03
DK156857B (da) 1989-10-09
AU4400879A (en) 1979-08-23
DK156857C (da) 1990-02-26
FR2427697A1 (fr) 1979-12-28
IT7967350A0 (it) 1979-02-16
CA1138990A (en) 1983-01-04
IT1118373B (it) 1986-02-24

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