发明名称 MERCHANDISE SURVEILLANCE SYSTEM ANTENNA AND METHOD
摘要 Embodiments of the invention provide a method, system and apparatus for d etecting a merchandise marker in which a first antenna has a circuit having a first loop defining a first area and a second loop defining a second area substantially coplanar with the first area. A second antenna is substantiall y coplanar and orthogonally positioned with respect to the first antenna. Th e second antenna has a circuit having a third loop defining a third area and a fourth loop defining a fourth area substantially coplanar with the third area.
申请公布号 CA2661472(A1) 申请公布日期 2008.02.28
申请号 CA20072661472 申请日期 2007.08.22
申请人 SENSORMATIC ELECTRONICS CORPORATION 发明人 SCHNEIDER, JACK H.;BALCH, BRENT FRANKLIN
分类号 H01Q7/04;H01Q1/22 主分类号 H01Q7/04
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