ES8202958A1 - Un sistema de antenas para su uso en un sistema electronico de seguridad. - Google Patents
Un sistema de antenas para su uso en un sistema electronico de seguridad.Info
- Publication number
- ES8202958A1 ES8202958A1 ES496218A ES496218A ES8202958A1 ES 8202958 A1 ES8202958 A1 ES 8202958A1 ES 496218 A ES496218 A ES 496218A ES 496218 A ES496218 A ES 496218A ES 8202958 A1 ES8202958 A1 ES 8202958A1
- Authority
- ES
- Spain
- Prior art keywords
- antenna
- twisted
- electronic security
- shield
- enclosing
- 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
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
- 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
- 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)
- Details Of Aerials (AREA)
Abstract
SISTEMA DE ANTENAS PARA USAR EN UNA SISTEMA ELECTRONICO DE SEGURIDAD. CONSTA DE UNA ANTENA TRANSMISORA (12) ACOPLADA AL TRANSMISOR (10) DEL SISTEMA DE SEGURIDAD Y DE UNA ANTENA RECEPTORA (14) ACOPLADA AL RECEPTOR (30) DEL SISTEMA DE SEGURIDAD, ESTANDO DISPUESTAS LAS ANTENAS EN UNA POSICION ADECUADA PARA DETECTAR LAS ETIQUETAS RESONANTES (15) QUE PASAN ENTRE AMBAS. UNA, POR LO MENOS, DE LAS VITADAS ANTENAS ESTA PROVISTA DE DOS LAZOS TORCIDOS, ESTANDO CADA UNO DE ELLOS TORCIDO 180 GRADOS PARA QUEDAR EN POSICION DE FASE CON RELACION AL LAZO ADYACENTE. UN PROTECTOR CONDUCTIVO ENCIERRA CADA ANTENA DE LAZO TORCIDO IMPIDIENDO QUE SE ACOPLEN LOS CAMPOS ELECTROSTATICOS A LA RESPECTIVA ANTENA, PERO PERMITIENDO QUE SE ACOPLEN LOS CAMPOS MAGNETICOS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/094,429 US4251808A (en) | 1979-11-15 | 1979-11-15 | Shielded balanced loop antennas for electronic security systems |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8202958A1 true ES8202958A1 (es) | 1982-02-16 |
ES496218A0 ES496218A0 (es) | 1982-02-16 |
Family
ID=22245143
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES496218A Granted ES496218A0 (es) | 1979-11-15 | 1980-10-23 | Un sistema de antenas para su uso en un sistema electronico de seguridad. |
ES507188A Expired ES8302369A1 (es) | 1979-11-15 | 1981-11-16 | Un sistema de antenas para su uso en un sistema electronico de seguridad. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES507188A Expired ES8302369A1 (es) | 1979-11-15 | 1981-11-16 | Un sistema de antenas para su uso en un sistema electronico de seguridad. |
Country Status (13)
Country | Link |
---|---|
US (1) | US4251808A (es) |
JP (1) | JPS5683000A (es) |
AU (1) | AU530083B2 (es) |
CA (1) | CA1148630A (es) |
DE (1) | DE3043026A1 (es) |
DK (1) | DK158686C (es) |
ES (2) | ES496218A0 (es) |
FR (1) | FR2470976A1 (es) |
GB (1) | GB2063569B (es) |
IT (1) | IT1129351B (es) |
MX (1) | MX148678A (es) |
SE (1) | SE445498B (es) |
ZA (1) | ZA806639B (es) |
Families Citing this family (62)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1138955A (en) * | 1979-09-14 | 1983-01-04 | Edward R. Fearon | Anti-shoplifting system |
US4373163A (en) * | 1980-07-14 | 1983-02-08 | I.D. Engineering, Inc. | Loop antenna for security systems |
US4384281A (en) * | 1980-10-31 | 1983-05-17 | Knogo Corporation | Theft detection apparatus using saturable magnetic targets |
US4342999A (en) * | 1980-11-25 | 1982-08-03 | Rca Corporation | Loop antenna arrangements for inclusion in a television receiver |
US4394645A (en) * | 1981-09-10 | 1983-07-19 | Sensormatic Electronics Corporation | Electrical surveillance apparatus with moveable antenna elements |
USRE32627E (en) * | 1981-09-10 | 1988-03-22 | Sensormatic Electronics Corporation | Electrical surveillance apparatus with moveable antenna elements |
EP0130973A1 (en) * | 1983-01-03 | 1985-01-16 | SHIN, Myong | Anti-shoplifting system |
US4609911A (en) * | 1983-07-05 | 1986-09-02 | Minnesota Mining And Manufacturing Company | Variable frequency RF electronic surveillance system |
US4509039A (en) * | 1983-07-05 | 1985-04-02 | Minnesota Mining And Manufacturing Company | Shielded, closely spaced transmit-receiver antennas for electronic article surveillance system |
US4531117A (en) * | 1983-07-05 | 1985-07-23 | Minnesota Mining And Manufacturing Company | Variable frequency RF electronic surveillance system |
US4642613A (en) * | 1984-03-16 | 1987-02-10 | Knogo Corporation | Electronic theft detection apparatus with responder elements on protected articles |
US4751516A (en) * | 1985-01-10 | 1988-06-14 | Lichtblau G J | Antenna system for magnetic and resonant circuit detection |
AU633247B2 (en) * | 1985-01-10 | 1993-01-28 | Checkpoint Systems, Inc. | Antenna system for magnetic and resonant circuit detection |
US4647910A (en) * | 1985-09-17 | 1987-03-03 | Allied Corporation | Selector for AC magnetic inductive field receiver coils |
US4728938A (en) * | 1986-01-10 | 1988-03-01 | Checkpoint Systems, Inc. | Security tag deactivation system |
US4769631A (en) * | 1986-06-30 | 1988-09-06 | Sensormatic Electronics Corporation | Method, system and apparatus for magnetic surveillance of articles |
JPS63236401A (ja) * | 1987-03-25 | 1988-10-03 | Kokusai Electric Co Ltd | 誘導無線装置用ループアンテナ |
US4779077A (en) * | 1987-04-13 | 1988-10-18 | Lichtblau G J | Continuously armed high reliability pulse train processor |
US4972198A (en) * | 1987-08-31 | 1990-11-20 | Monarch Marking Systems, Inc. | Multiple loop antenna |
US4872018A (en) * | 1987-08-31 | 1989-10-03 | Monarch Marking Systems, Inc. | Multiple loop antenna |
US5121103A (en) * | 1988-07-29 | 1992-06-09 | Knogo Corporation | Load isolated article surveillance system and antenna assembly |
US5103235A (en) * | 1988-12-30 | 1992-04-07 | Checkpoint Systems, Inc. | Antenna structure for an electronic article surveillance system |
US4999641A (en) * | 1989-09-01 | 1991-03-12 | Monarch Marking Systems, Inc. | Magnetic antenna system having independently controllable electrical field shielding and magnetic field balance |
GB9004431D0 (en) * | 1990-02-28 | 1990-04-25 | Scient Generics Ltd | Detection system for security systems |
US5051726A (en) * | 1990-08-14 | 1991-09-24 | Sensormatic Electronics Corporation | Electronic article surveillance system with antenna array for enhanced field falloff |
NL9100397A (nl) * | 1991-03-06 | 1992-10-01 | Nedap Nv | Asymmetrische antenne voor winkeldiefstaldetectiesystemen. |
US5142292A (en) * | 1991-08-05 | 1992-08-25 | Checkpoint Systems, Inc. | Coplanar multiple loop antenna for electronic article surveillance systems |
US5442334A (en) * | 1992-07-20 | 1995-08-15 | Stoplift Corporation | Security system having deactivatable security tag |
US5404147A (en) * | 1992-10-28 | 1995-04-04 | Sensormatic Electronics Corporation | EAS system loop antenna having three loops of different area |
US5373301A (en) * | 1993-01-04 | 1994-12-13 | Checkpoint Systems, Inc. | Transmit and receive antenna having angled crossover elements |
EP0634807B1 (de) * | 1993-07-13 | 1998-08-12 | Actron Entwicklungs AG | Antennenvorrichtung |
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 |
EP0703637A1 (de) | 1994-09-23 | 1996-03-27 | Actron Entwicklungs AG | Antenne für ein elektronisches Sicherungssystem |
BR9609286A (pt) * | 1995-05-30 | 1999-05-11 | Sensormatic Electronics Corp | Configuração de antena de sistema eas para proporcionar melhor distribuição de campo de interrogação |
US5602556A (en) * | 1995-06-07 | 1997-02-11 | Check Point Systems, Inc. | Transmit and receive loop antenna |
US5825335A (en) * | 1995-10-23 | 1998-10-20 | Kubota Corporation | Sheet antenna apparatus |
US5653192A (en) * | 1996-03-06 | 1997-08-05 | Alfa Laval Agri Inc. | Livestock identification apparatus |
AU2546597A (en) * | 1996-04-10 | 1997-10-29 | 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 |
DE19732254A1 (de) * | 1997-07-26 | 1999-02-11 | Kaba Benzing Gmbh | Vorrichtung zur Übermittlung magnetischer Signale mittels einer Leiterplatte |
US6611783B2 (en) | 2000-01-07 | 2003-08-26 | Nocwatch, Inc. | Attitude indicator and activity monitoring device |
EP1158601A1 (de) * | 2000-05-15 | 2001-11-28 | Häni Prolectron Ag | Trägerelement für eine Antenne mit geringer Handempfindlichkeit |
US7030750B2 (en) | 2002-07-16 | 2006-04-18 | Bert Taeho Lee | Detachable entrance and exit gate with a combined commodity burglarproofing and small arms detecting system |
US6900727B2 (en) | 2002-07-16 | 2005-05-31 | Bert Taeho Lee | Weapon detector system |
KR200298223Y1 (ko) * | 2002-09-11 | 2002-12-16 | 태호 리 버트 | 총기류 탐지 겸용 상품도난 방지장치의 출입게이트 구조 |
US20040102870A1 (en) * | 2002-11-26 | 2004-05-27 | Andersen Scott Paul | RFID enabled paper rolls and system and method for tracking inventory |
JP4804365B2 (ja) * | 2004-02-19 | 2011-11-02 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 通信の発生源を一意的に識別することなく緊急事態の存在を伝送するための方法及び装置 |
US7591415B2 (en) * | 2004-09-28 | 2009-09-22 | 3M Innovative Properties Company | Passport reader for processing a passport having an RFID element |
US20070252001A1 (en) * | 2006-04-25 | 2007-11-01 | Kail Kevin J | Access control system with RFID and biometric facial recognition |
EP2327230B1 (en) | 2008-09-04 | 2013-03-27 | Allflex Usa, Inc. | Combination full-duplex and half-duplex electronic identification tag |
WO2011044585A1 (en) * | 2009-10-09 | 2011-04-14 | Allflex Usa, Inc. | Hdx demodulator |
CA2780323C (en) * | 2009-10-09 | 2018-06-12 | Aleis Pty Ltd | Radio frequency identification reader antenna having a dynamically adjustable q-factor |
CA2783571C (en) * | 2009-11-04 | 2018-01-09 | Allflex Usa, Inc. | Signal cancelling transmit/receive multi-loop antenna for a radio frequency identification reader |
US20120139730A1 (en) * | 2010-12-03 | 2012-06-07 | Metrologic Instruments, Inc. | Electronic article surveillance system |
WO2012149025A1 (en) * | 2011-04-25 | 2012-11-01 | Conocophillips Company | In situ radio frequency catalytic upgrading |
US9671478B2 (en) * | 2011-07-22 | 2017-06-06 | Max-Planck-Gesellschaft Zur Foerderung Der Wissenschaften E.V. | Antenna and antenna arrangement for magnetic resonance applications |
MX346099B (es) | 2011-10-11 | 2017-03-07 | Senseonics Inc | Sistema para activar la fuerza de un campo electrodinámico. |
US9577349B2 (en) | 2015-06-29 | 2017-02-21 | Near Field Magnetics, Inc. | Near-field magnetic communication antenna |
DE102017105649A1 (de) * | 2017-03-16 | 2018-09-20 | Bundesdruckerei Gmbh | RFID-Lesegerät und Verfahren zu seiner Herstellung |
US11152151B2 (en) | 2017-05-26 | 2021-10-19 | Nucurrent, Inc. | Crossover coil structure for wireless transmission |
US11283303B2 (en) * | 2020-07-24 | 2022-03-22 | Nucurrent, Inc. | Area-apportioned wireless power antenna for maximized charging volume |
US11695302B2 (en) | 2021-02-01 | 2023-07-04 | Nucurrent, Inc. | Segmented shielding for wide area wireless power transmitter |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB419783A (en) * | 1933-02-02 | 1934-11-19 | Marconi Wireless Telegraph Co | Improvements in and relating to wireless receiving apparatus |
US2391026A (en) * | 1943-11-15 | 1945-12-18 | Standard Telephones Cables Ltd | Shielded loop antenna |
JPS4327094Y1 (es) * | 1964-02-25 | 1968-11-09 | ||
US3810147A (en) * | 1971-12-30 | 1974-05-07 | G Lichtblau | Electronic security system |
US3863244A (en) * | 1972-06-14 | 1975-01-28 | Lichtblau G J | Electronic security system having improved noise discrimination |
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 |
US3973263A (en) * | 1973-04-20 | 1976-08-03 | The United States Of America As Represented By The Secretary Of The Navy | Sensitivity improvement of spaced-loop antenna by capacitive gap loading |
JPS5046062A (es) * | 1973-08-28 | 1975-04-24 | ||
JPS5226879A (en) * | 1975-08-26 | 1977-02-28 | Nippon Telegr & Teleph Corp <Ntt> | Method of measuring phase constants in waveguides |
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 |
-
1979
- 1979-11-15 US US06/094,429 patent/US4251808A/en not_active Expired - Lifetime
-
1980
- 1980-10-06 AU AU62989/80A patent/AU530083B2/en not_active Ceased
- 1980-10-10 CA CA000362129A patent/CA1148630A/en not_active Expired
- 1980-10-23 ES ES496218A patent/ES496218A0/es active Granted
- 1980-10-29 ZA ZA00806639A patent/ZA806639B/xx unknown
- 1980-10-30 IT IT68658/80A patent/IT1129351B/it active
- 1980-11-11 MX MX184713A patent/MX148678A/es unknown
- 1980-11-12 JP JP15834080A patent/JPS5683000A/ja active Granted
- 1980-11-14 FR FR8024264A patent/FR2470976A1/fr active Granted
- 1980-11-14 GB GB8036676A patent/GB2063569B/en not_active Expired
- 1980-11-14 DE DE19803043026 patent/DE3043026A1/de active Granted
- 1980-11-14 DK DK489380A patent/DK158686C/da active
- 1980-11-14 SE SE8007986A patent/SE445498B/sv not_active IP Right Cessation
-
1981
- 1981-11-16 ES ES507188A patent/ES8302369A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES507188A0 (es) | 1982-12-16 |
GB2063569B (en) | 1983-06-22 |
AU6298980A (en) | 1981-06-04 |
ES8302369A1 (es) | 1982-12-16 |
US4251808A (en) | 1981-02-17 |
DE3043026C2 (es) | 1990-02-22 |
SE8007986L (sv) | 1981-05-16 |
JPS5683000A (en) | 1981-07-07 |
CA1148630A (en) | 1983-06-21 |
JPH0230553B2 (es) | 1990-07-06 |
FR2470976A1 (fr) | 1981-06-12 |
ZA806639B (en) | 1981-11-25 |
MX148678A (es) | 1983-05-27 |
ES496218A0 (es) | 1982-02-16 |
AU530083B2 (en) | 1983-06-30 |
DK158686B (da) | 1990-07-02 |
SE445498B (sv) | 1986-06-23 |
IT1129351B (it) | 1986-06-04 |
DK489380A (da) | 1981-05-16 |
GB2063569A (en) | 1981-06-03 |
FR2470976B1 (es) | 1984-11-23 |
DE3043026A1 (de) | 1981-05-21 |
IT8068658A0 (it) | 1980-10-30 |
DK158686C (da) | 1991-02-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19971205 |