ES8705663A1 - Un sistema de respondedor. - Google Patents
Un sistema de respondedor.Info
- Publication number
- ES8705663A1 ES8705663A1 ES550303A ES550303A ES8705663A1 ES 8705663 A1 ES8705663 A1 ES 8705663A1 ES 550303 A ES550303 A ES 550303A ES 550303 A ES550303 A ES 550303A ES 8705663 A1 ES8705663 A1 ES 8705663A1
- Authority
- ES
- Spain
- Prior art keywords
- transponder
- antenna
- antennae
- desired region
- interrogating
- 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
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
- G06K7/10346—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers the antenna being of the far field type, e.g. HF types or dipoles
-
- 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
- G01S13/762—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted with special measures concerning the radiation pattern, e.g. S.L.S.
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/024—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using polarisation effects
- G01S7/026—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using polarisation effects involving the transmission of elliptically or circularly polarised waves
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
-
- 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
-
- 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)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Signal Processing (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Automation & Control Theory (AREA)
- Computer Security & Cryptography (AREA)
- General Health & Medical Sciences (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Theoretical Computer Science (AREA)
- Radar Systems Or Details Thereof (AREA)
- Near-Field Transmission Systems (AREA)
- Ship Loading And Unloading (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
SISTEMA DE RESPONDEDOR. CONSISTE EN UN RESPONDEDOR QUE SE PUEDE MONTAR SOBRE EL OBJETO A IDENTIFICAR, Y UN INTERROGADOR PARA INTERROGAR AL RESPONDEDOR. EL INTERROGADOR CONSISTE EN UN PAR DE ANTENAS CONFIGURADAS EN UN MISMO PLANO, UNA EN FORMA DE BUCLE CERRADO Y OTRA EN FORMA DE OCHO QUE PROPORCIONAN SEÑALES EN UNA DIRECCION QUE FORMA EN GENERAL ANGULOS RECTOS EN UNA ZONA EN LA QUE SE REQUIERE LA INTERROGACION AL RESPONDEDOR. AMBAS ANTENAS PUEDEN SER EXCITADAS SIMULTANEAMENTE Y SE INTRODUCE UN CAMBIO DE FASE ENTRE LAS SEÑALES SUMINISTRADAS A LAS ANTENAS PARA PROPORCIONAR UN CAMPO QUE SUMINISTRE COMPONENTES EN TODAS DIRECCIONES, PARA ASI ACTIVAR EL RESPONDEDOR INDEPENDIENTEMENTE DE LA ORIENTACION DE ESTE.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08432562A GB2180123B (en) | 1984-12-21 | 1984-12-21 | Transponder systems |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8705663A1 true ES8705663A1 (es) | 1987-05-01 |
ES550303A0 ES550303A0 (es) | 1987-05-01 |
Family
ID=10571684
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES550303A Expired ES8705663A1 (es) | 1984-12-21 | 1985-12-20 | Un sistema de respondedor. |
Country Status (9)
Country | Link |
---|---|
US (1) | US4679046A (es) |
EP (1) | EP0186483A3 (es) |
JP (1) | JPS61204575A (es) |
AU (1) | AU577171B2 (es) |
CA (1) | CA1248606A (es) |
DK (1) | DK593085A (es) |
ES (1) | ES8705663A1 (es) |
GB (2) | GB2180123B (es) |
NO (1) | NO855205L (es) |
Families Citing this family (83)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8602033A (nl) * | 1986-08-08 | 1988-03-01 | Nedap Nv | Precisie richtfunctie bij herkensysteem. |
CH668915A5 (fr) * | 1986-10-22 | 1989-02-15 | Ebauchesfabrik Eta Ag | Transpondeur passif. |
US5103234A (en) * | 1987-08-28 | 1992-04-07 | Sensormatic Electronics Corporation | Electronic article surveillance system |
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 |
SE501335C2 (sv) * | 1988-02-10 | 1995-01-16 | Rekondo Teknik Ab | Anordning för identifiering av föremål |
NL8800546A (nl) * | 1988-03-04 | 1989-10-02 | Nedap Nv | Eenwindingantennespoel voor draadloos electromagnetisch detectiesysteem. |
NL8802914A (nl) * | 1988-11-28 | 1990-06-18 | Nedap Nv | Antenneconfiguratie voor twee frequenties. |
FR2643726B1 (fr) * | 1989-02-27 | 1992-01-31 | Caro Line Habigand | Systeme d'identification sans contact d'un mobile en deplacement a proximite d'un poste fixe |
JP2533800B2 (ja) * | 1989-06-02 | 1996-09-11 | 山武ハネウエル株式会社 | マイクロ波応答装置 |
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 |
FR2656449B1 (fr) * | 1989-12-22 | 1995-02-10 | Volback Sa | Procede et dispositif d'identification d'objets, notamment des vehicules automobiles. |
US5291204A (en) * | 1990-07-09 | 1994-03-01 | United Technologies Corporation | Radar response system |
NL9100026A (nl) * | 1991-01-09 | 1992-08-03 | Texas Instruments Holland | Ondervraagstation voor het identificeren van over een transportbaan voortbewogen objecten. |
NL9100111A (nl) * | 1991-01-23 | 1992-08-17 | Texas Instruments Holland | Antennestelsel voor een ondervraagstation voor het identificeren van objecten. |
GB9125846D0 (en) * | 1991-12-04 | 1992-02-05 | Esselte Meto Int Gmbh | Improved interrogation and detection means for theft-detection systems |
US5280286A (en) * | 1992-06-12 | 1994-01-18 | Smart Tag Systems, Inc. | Surveillance and identification system antennas |
NL9201270A (nl) * | 1992-07-15 | 1994-02-01 | Nedap Nv | Antiwinkeldiefstal-antenne met draaiveld. |
US5241923A (en) * | 1992-07-23 | 1993-09-07 | Pole/Zero Corporation | Transponder control of animal whereabouts |
JP3229407B2 (ja) * | 1992-12-04 | 2001-11-19 | キヤノン株式会社 | メールサービス装置 |
ES2122209T3 (es) * | 1993-07-13 | 1998-12-16 | Actron Entwicklungs Ag | Dispositivo de antena. |
EP0650074A1 (en) * | 1993-10-22 | 1995-04-26 | Texas Instruments Holland B.V. | Highly accurate RF-ID positioning system |
DE19507721C2 (de) * | 1995-03-07 | 1997-10-02 | Aeg Identifikationssys Gmbh | Transponderanordnung für elektromagnetische Abfragesysteme |
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 |
DE19542441C2 (de) * | 1995-11-14 | 1998-04-09 | Siemens Ag | Antennenvorrichtung für ein Diebstahlschutzsystem |
DE19600233A1 (de) * | 1996-01-05 | 1997-07-10 | Aeg Identifikationssys Gmbh | Transponder-Abfragegerät und Transpondersystem mit einem solchen Abfragegerät |
US5786763A (en) * | 1996-06-20 | 1998-07-28 | Sensormatic Electronics Corporation | Antenna multiplexer with isolation of switching elements |
US6362737B1 (en) | 1998-06-02 | 2002-03-26 | Rf Code, Inc. | Object Identification system with adaptive transceivers and methods of operation |
US6064308A (en) * | 1996-10-25 | 2000-05-16 | Pole/Zero Corporation | RF signaling system and system for controlling the whereabouts of animals using same |
US6446049B1 (en) | 1996-10-25 | 2002-09-03 | Pole/Zero Corporation | Method and apparatus for transmitting a digital information signal and vending system incorporating same |
DE29619668U1 (de) * | 1996-11-12 | 1997-02-06 | Siemens AG, 80333 München | Antennenanordnung einer Vorrichtung zum Erkennen eines in einem Kraftfahrzeug auf einem Fahrzeugsitz angeordneten Kindersitzes |
DE19717505C2 (de) * | 1997-04-25 | 1999-02-18 | Diehl Ident Gmbh | Transponder-Kommunikationseinrichtung |
DE19727930B4 (de) * | 1997-07-01 | 2004-05-27 | Anatoli Stobbe | Vorrichtung zur Identifizierung von an sportlichen Wettbewerben teilnehmenden Personen oder Tieren |
US6166643A (en) * | 1997-10-23 | 2000-12-26 | Janning; Joseph J. | Method and apparatus for controlling the whereabouts of an animal |
US6118378A (en) * | 1997-11-28 | 2000-09-12 | Sensormatic Electronics Corporation | Pulsed magnetic EAS system incorporating single antenna with independent phasing |
US5963173A (en) * | 1997-12-05 | 1999-10-05 | Sensormatic Electronics Corporation | Antenna and transmitter arrangement for EAS system |
US6351215B2 (en) | 1998-06-02 | 2002-02-26 | Rf Code, Inc. | Monitoring antenna system |
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 |
US6166706A (en) * | 1998-11-04 | 2000-12-26 | Checkpoint Systems, Inc. | Rotating field antenna with a magnetically coupled quadrature loop |
CN1264932A (zh) * | 1999-02-01 | 2000-08-30 | 超传感器(私有)有限公司 | 供电子识别系统使用的混合天线装置 |
JP3575340B2 (ja) | 1999-07-28 | 2004-10-13 | 株式会社日本自動車部品総合研究所 | Ask変調波を用いた送信機 |
FR2797123A1 (fr) * | 1999-07-28 | 2001-02-02 | Gemplus Card Int | Systeme d'identification d'objets sur un convoyeur en mouvement |
US6693511B1 (en) | 1999-09-24 | 2004-02-17 | Ge Interlogix, Inc. | System and method for communicating with dormant radio frequency identification tags |
US6661335B1 (en) | 1999-09-24 | 2003-12-09 | Ge Interlogix, Inc. | System and method for locating radio frequency identification tags |
EP1226455A2 (en) * | 1999-09-24 | 2002-07-31 | Interlogix, Inc. | System and method for locating radio frequency identification tags using three-phase antenna |
US6396438B1 (en) | 1999-09-24 | 2002-05-28 | Slc Technologies | System and method for locating radio frequency identification tags using three-phase antenna |
US6452504B1 (en) | 1999-09-24 | 2002-09-17 | Ge Interlogix, Inc. | System and method for communication with radio frequency identification tags using tow message DFM protocol |
ITAR20000040A1 (it) | 2000-09-08 | 2002-03-08 | Alessandro Manneschi | Trasduttore lettore di transponder per il controllo dei passaggi |
FR2819772B1 (fr) * | 2001-01-22 | 2004-05-28 | Alstom | Dispositif et procede pour la localisation ponctuelle d'un vehicule ferroviaire le long d'une voie ferree equipee de balises et antenne destinee a equiper un tel dispositif |
US6693557B2 (en) * | 2001-09-27 | 2004-02-17 | Wavetronix Llc | Vehicular traffic sensor |
JP3587185B2 (ja) * | 2001-09-28 | 2004-11-10 | オムロン株式会社 | 誘導無線アンテナ、およびこれを用いた非接触データ通信装置 |
DE60214761T2 (de) | 2001-12-12 | 2006-12-28 | Jervis B. Webb International Co., Farmington Hills | Leitsystem und Verfahren für fahrerloses Fahrzeug |
EP1332719A1 (en) * | 2002-01-23 | 2003-08-06 | Roke Manor Research Limited | Method and apparatus to detect metal fragments in patients |
US6753821B2 (en) * | 2002-04-22 | 2004-06-22 | Wg Security Products, Inc. | Method and arrangement of antenna system of EAS |
GB2391710B (en) * | 2002-08-08 | 2005-11-30 | Shearwell Data Ltd | Antenna system |
US7045996B2 (en) * | 2003-01-30 | 2006-05-16 | Hewlett-Packard Development Company, L.P. | Position determination based on phase difference |
US7026939B2 (en) * | 2003-02-10 | 2006-04-11 | Phase Iv Engineering, Inc. | Livestock data acquisition and collection |
WO2004074873A1 (en) * | 2003-02-18 | 2004-09-02 | Tagsys Sa | System for minimizing coupling nulls within an electromagnetic field |
US7019651B2 (en) * | 2003-06-16 | 2006-03-28 | Sensormatic Electronics Corporation | EAS and RFID systems incorporating field canceling core antennas |
US7495565B2 (en) * | 2004-05-11 | 2009-02-24 | Sensomatic Electronics Corporation | Methods and apparatus for arbitrary antenna phasing in an electronic article surveillance system |
DE102004035621A1 (de) * | 2004-07-22 | 2006-03-16 | Feig Electronic Gmbh | Antennenanordnung für grosse zusammenhängende Erfassungsräume |
US7432874B2 (en) | 2004-07-22 | 2008-10-07 | Feig Electronic Gmbh | Antenna array |
US7648065B2 (en) * | 2005-08-31 | 2010-01-19 | The Stanley Works | Storage cabinet with improved RFID antenna system |
US8154465B2 (en) | 2005-09-20 | 2012-04-10 | Allflex Australia Pty. Limited | Portal antenna |
US7956751B2 (en) * | 2006-08-23 | 2011-06-07 | Tagsys Sas | System for minimizing coupling nulls |
US8933790B2 (en) * | 2007-06-08 | 2015-01-13 | Checkpoint Systems, Inc. | Phase coupler for rotating fields |
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 |
GB2461126B (en) | 2008-06-25 | 2010-09-29 | Shearwell Data Ltd | Antenna system |
DE102008060188A1 (de) * | 2008-11-28 | 2010-06-10 | Siemens Aktiengesellschaft | Verfahren und Vorrichtung zur Abstandsmessung |
AU2010203373B2 (en) | 2009-01-12 | 2013-08-01 | University Of Massachusetts Lowell | Polyisobutylene-based polyurethanes |
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 |
FR2960349B1 (fr) * | 2010-05-21 | 2012-06-15 | Alstom Transp | Antenne destinee a etre embarquee sur un vehicule ferroviaire afin de localiser ledit vehicule ferroviaire le long d'une voie ferree equipee d'un systeme de balises au sol |
MX346099B (es) | 2011-10-11 | 2017-03-07 | Senseonics Inc | Sistema para activar la fuerza de un campo electrodinámico. |
WO2013117994A1 (en) * | 2012-01-05 | 2013-08-15 | Hid Global Gmbh | Calculated compensated magnetic antennas for different frequencies |
CN103311674A (zh) * | 2012-03-09 | 2013-09-18 | 杭州上立电子科技有限公司 | 一种eas天线系统及其防盗检测方法 |
US9099765B2 (en) | 2012-07-06 | 2015-08-04 | Blackberry Limited | Device having a quadrature near field communication antenna |
EP2683032B1 (en) * | 2012-07-06 | 2015-11-18 | BlackBerry Limited | A device having a quadrature near field communication antenna |
WO2017156345A1 (en) | 2016-03-09 | 2017-09-14 | WaveMark, Inc. | Medical cabinet communication system and methods |
EP3415946B1 (en) * | 2017-06-13 | 2021-08-04 | Swiss Timing Ltd. | Method for calculating a position of a transponder within an area of interest |
US10439656B2 (en) | 2017-11-28 | 2019-10-08 | Schlage Lock Company Llc | Communication circuit with single element antenna for multi-frequency applications |
US10355723B2 (en) | 2017-11-28 | 2019-07-16 | Schlage Lock Company Llc | Communication circuit with single element antenna for multi-frequency applications |
US11472911B2 (en) | 2018-01-17 | 2022-10-18 | Cardiac Pacemakers, Inc. | End-capped polyisobutylene polyurethane |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1927660U (de) * | 1964-07-29 | 1965-11-25 | Gen Electric | Vorrichtung zur identifizierung von beweglichen objekten, insbesondere schienenfahrzeugen. |
US3765007A (en) * | 1969-07-11 | 1973-10-09 | Minnesota Mining & Mfg | Method and apparatus for detecting at a distance the status and identity of objects |
US3747100A (en) * | 1970-07-30 | 1973-07-17 | Us Navy | Apparatus for identifying main lobe responses |
JPS539139A (en) * | 1976-07-13 | 1978-01-27 | Marunaga Konpou Kk | Method of discriminating articles using radio wave |
GB1599120A (en) * | 1978-05-19 | 1981-09-30 | Philips Electronic Associated | Detection system |
JPS6040724B2 (ja) * | 1978-07-31 | 1985-09-12 | 八木アンテナ株式会社 | 妨害波除去装置 |
US4260990A (en) * | 1979-11-08 | 1981-04-07 | Lichtblau G J | Asymmetrical antennas for use in electronic security systems |
US4373163A (en) * | 1980-07-14 | 1983-02-08 | I.D. Engineering, Inc. | Loop antenna for security systems |
US4309697A (en) * | 1980-10-02 | 1982-01-05 | Sensormatic Electronics Corporation | Magnetic surveillance system with odd-even harmonic and phase discrimination |
DE3104508C2 (de) * | 1981-02-09 | 1984-12-13 | Siemens AG, 1000 Berlin und 8000 München | Sekundärradar-Antennenanordnung |
GB2133660B (en) * | 1982-11-09 | 1986-07-30 | Tag Radionics Ltd | Transponder detection systems |
EP0130973A1 (en) * | 1983-01-03 | 1985-01-16 | SHIN, Myong | Anti-shoplifting system |
-
1984
- 1984-12-21 GB GB08432562A patent/GB2180123B/en not_active Expired
-
1985
- 1985-12-17 US US06/810,026 patent/US4679046A/en not_active Expired - Fee Related
- 1985-12-18 AU AU51446/85A patent/AU577171B2/en not_active Ceased
- 1985-12-19 GB GB858531287A patent/GB8531287D0/en active Pending
- 1985-12-19 DK DK593085A patent/DK593085A/da not_active Application Discontinuation
- 1985-12-20 JP JP60289094A patent/JPS61204575A/ja active Pending
- 1985-12-20 NO NO855205A patent/NO855205L/no unknown
- 1985-12-20 CA CA000498217A patent/CA1248606A/en not_active Expired
- 1985-12-20 ES ES550303A patent/ES8705663A1/es not_active Expired
- 1985-12-20 EP EP85309391A patent/EP0186483A3/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
NO855205L (no) | 1986-06-23 |
GB2180123A (en) | 1987-03-18 |
EP0186483A2 (en) | 1986-07-02 |
DK593085D0 (da) | 1985-12-19 |
GB8432562D0 (en) | 1985-02-06 |
GB8531287D0 (en) | 1986-01-29 |
EP0186483A3 (en) | 1987-09-02 |
US4679046A (en) | 1987-07-07 |
CA1248606A (en) | 1989-01-10 |
AU5144685A (en) | 1986-06-26 |
GB2180123B (en) | 1989-01-18 |
ES550303A0 (es) | 1987-05-01 |
AU577171B2 (en) | 1988-09-15 |
JPS61204575A (ja) | 1986-09-10 |
DK593085A (da) | 1986-06-22 |
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