DE59406653D1 - Antennenvorrichtung - Google Patents
AntennenvorrichtungInfo
- Publication number
- DE59406653D1 DE59406653D1 DE59406653T DE59406653T DE59406653D1 DE 59406653 D1 DE59406653 D1 DE 59406653D1 DE 59406653 T DE59406653 T DE 59406653T DE 59406653 T DE59406653 T DE 59406653T DE 59406653 D1 DE59406653 D1 DE 59406653D1
- Authority
- DE
- Germany
- Prior art keywords
- electrically
- loop
- partial
- antenna device
- antenna
- 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 - Fee Related
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
- G08B13/2474—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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH209493 | 1993-07-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE59406653D1 true DE59406653D1 (de) | 1998-09-17 |
Family
ID=4225752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE59406653T Expired - Fee Related DE59406653D1 (de) | 1993-07-13 | 1994-06-06 | Antennenvorrichtung |
Country Status (6)
Country | Link |
---|---|
US (1) | US5663738A (de) |
EP (1) | EP0634807B1 (de) |
JP (1) | JP3606603B2 (de) |
AT (1) | ATE169776T1 (de) |
DE (1) | DE59406653D1 (de) |
ES (1) | ES2122209T3 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5825335A (en) * | 1995-10-23 | 1998-10-20 | Kubota Corporation | Sheet antenna apparatus |
JPH10303635A (ja) * | 1997-04-25 | 1998-11-13 | Matsushita Electric Ind Co Ltd | ループアンテナ回路 |
US5963173A (en) * | 1997-12-05 | 1999-10-05 | Sensormatic Electronics Corporation | Antenna and transmitter arrangement for EAS system |
FR2784524B1 (fr) * | 1998-10-12 | 2006-07-07 | Dassault Electronique | Antenne perfectionnee, notamment pour un lecteur de badge sans contact |
US6166706A (en) * | 1998-11-04 | 2000-12-26 | Checkpoint Systems, Inc. | Rotating field antenna with a magnetically coupled quadrature loop |
US6025807A (en) * | 1999-03-12 | 2000-02-15 | Lucent Technologies, Inc. | Orientation independent loop antenna |
JP3498716B2 (ja) * | 2001-02-09 | 2004-02-16 | オムロン株式会社 | アンテナ装置 |
TWI296062B (en) * | 2001-12-28 | 2008-04-21 | Sanyo Electric Co | Liquid crystal display device |
CA2389791C (en) * | 2002-06-20 | 2004-10-19 | James Stanley Podger | Multiloop antenna elements |
CN100583554C (zh) * | 2003-08-29 | 2010-01-20 | 精工爱普生株式会社 | 环形天线装置 |
ES2303243T3 (es) * | 2004-04-28 | 2008-08-01 | Checkpoint Systems, Inc. | Sistema electronico de seguimiento de articulos para bastidor de venta al detalle que utilizan antena de bucle. |
CN101006607B (zh) * | 2004-07-16 | 2014-05-07 | Nxp股份有限公司 | 天线、通信站以及包括天线或通信站的设备 |
JP4890097B2 (ja) * | 2006-05-19 | 2012-03-07 | 日本信号株式会社 | 磁束発生装置及び物品管理収納装置 |
US20090135080A1 (en) * | 2007-11-28 | 2009-05-28 | Stichting Astron | Magnetc radiator arranged with decoupling means |
JP2012143061A (ja) * | 2010-12-28 | 2012-07-26 | Central Japan Railway Co | 2重ループ構造 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2597518A (en) * | 1949-10-17 | 1952-05-20 | Motorola Inc | Vehicle detecting system |
US4016553A (en) * | 1975-06-27 | 1977-04-05 | Knogo Corporation | Article detection system with near field electromagnetic wave control |
US4135183A (en) * | 1977-05-24 | 1979-01-16 | Minnesota Mining And Manufacturing Company | Antipilferage system utilizing "figure-8" shaped field producing and detector coils |
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 |
US4251808A (en) * | 1979-11-15 | 1981-02-17 | Lichtblau G J | Shielded balanced loop antennas for electronic security systems |
GB2180123B (en) * | 1984-12-21 | 1989-01-18 | Senezco Limited | Transponder systems |
US4633250A (en) * | 1985-01-07 | 1986-12-30 | Allied Corporation | Coplanar antenna for proximate surveillance systems |
US4866455A (en) * | 1985-01-10 | 1989-09-12 | Lichtblau G J | Antenna system for magnetic and resonant circuit detection |
US4751516A (en) * | 1985-01-10 | 1988-06-14 | Lichtblau G J | Antenna system for magnetic and resonant circuit detection |
US4720701A (en) * | 1986-01-02 | 1988-01-19 | Lichtblau G J | System with enhanced signal detection and discrimination with saturable magnetic marker |
US4859991A (en) * | 1987-08-28 | 1989-08-22 | Sensormatic Electronics Corporation | Electronic article surveillance system employing time domain and/or frequency domain analysis and computerized operation |
US4872018A (en) * | 1987-08-31 | 1989-10-03 | Monarch Marking Systems, Inc. | Multiple loop antenna |
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 |
US5061941A (en) * | 1990-02-01 | 1991-10-29 | Checkpoint Systems, Inc. | Composite antenna for electronic article surveillance systems |
GB9004431D0 (en) * | 1990-02-28 | 1990-04-25 | Scient Generics Ltd | Detection system for security systems |
-
1994
- 1994-06-06 EP EP94810334A patent/EP0634807B1/de not_active Expired - Lifetime
- 1994-06-06 DE DE59406653T patent/DE59406653D1/de not_active Expired - Fee Related
- 1994-06-06 AT AT94810334T patent/ATE169776T1/de active
- 1994-06-06 ES ES94810334T patent/ES2122209T3/es not_active Expired - Lifetime
- 1994-06-30 JP JP14953694A patent/JP3606603B2/ja not_active Expired - Fee Related
-
1996
- 1996-05-02 US US08/643,097 patent/US5663738A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ES2122209T3 (es) | 1998-12-16 |
ATE169776T1 (de) | 1998-08-15 |
EP0634807B1 (de) | 1998-08-12 |
JP3606603B2 (ja) | 2005-01-05 |
JPH07154130A (ja) | 1995-06-16 |
US5663738A (en) | 1997-09-02 |
EP0634807A1 (de) | 1995-01-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |