发明授权
- 专利标题: Electronic article surveillance system
- 专利标题(中): 电子物品监控系统
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申请号: US10142096申请日: 2002-05-09
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公开(公告)号: US06836216B2公开(公告)日: 2004-12-28
- 发明人: Vladimir Manov , Alexander Rubshtein , Edward Brook-Levinson
- 申请人: Vladimir Manov , Alexander Rubshtein , Edward Brook-Levinson
- 主分类号: G08B1314
- IPC分类号: G08B1314
摘要:
An electronic article surveillance system is disclosed. The system utilizes interaction between magnetic fields generated by a plurality of antennae elements to generate magnetic field in different orientations within an interrogation zone. The antenna elements are fed in different phases in accordance to phase patterns to generate the different orientations. A novel receiving antenna construction for receiving the perturbations caused by re-magnetization of a marker within the interrogation zone is also disclosed. The antenna construction comprises a receiving coil at a certain distance from the transmitting coil, and a compensating coil closer to a transmitting coil. A method for utilizing the system is also presented.
公开/授权文献
- US20030210145A1 Electronic article surveillance system 公开/授权日:2003-11-13
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