发明名称 |
DUAL ANTENNA COIL TRANSPONDER SYSTEM |
摘要 |
The present invention relates to a dual antenna coil (112, 114) identification system, and more particularly, to an interrogator (100) or reader for inductively coupling to a transponder and thereby extract data from the transponder. The magnetic field required to energize a transponder is generated by currents flowing through two essentially identical but opposite phased antenna coils arranged near the area where tags are to be read.
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申请公布号 |
CA2465651(C) |
申请公布日期 |
2011.02.08 |
申请号 |
CA20022465651 |
申请日期 |
2002.11.01 |
申请人 |
AVID IDENTIFICATION SYSTEMS, INC. |
发明人 |
WARD, WILLIAM H., JR.;WARD, TIMOTHY JON |
分类号 |
G01V3/10;G06K17/00;G01V3/12;G06K7/08;H01Q1/22;H01Q7/00;H04B1/59;H04B5/02 |
主分类号 |
G01V3/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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