发明名称 Merchandise surveillance system antenna and method
摘要 Embodiments of the invention provide a method, system and apparatus for detecting 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 substantially coplanar and orthogonally positioned with respect to the first antenna. The 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 US2008068273(A1) 申请公布日期 2008.03.20
申请号 US20060507920 申请日期 2006.08.22
申请人 SENSORMATIC ELECTRONICS CORPORATION 发明人 SCHNEIDER JACK HOWARD;BALCH BRENT FRANKLIN
分类号 H01Q11/12 主分类号 H01Q11/12
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