| 发明名称 |
DUAL ANTENNA COIL TRANSPONDER SYSTEM. |
| 摘要 |
<p>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.</p> |
| 申请公布号 |
MXPA04004165(A) |
申请公布日期 |
2004.07.08 |
| 申请号 |
MX2004PA04165 |
申请日期 |
2002.11.01 |
| 申请人 |
AVID IDENTIFICATION SYSTEMS, INC. |
发明人 |
WILLIAM H. WARD |
| 分类号 |
G06K17/00;G06K7/08;H01Q1/22;H01Q7/00;H04B1/59;H04B5/02;(IPC1-7):G01S5/04;G08B23/00;G08B26/00;G06F17/00 |
主分类号 |
G06K17/00 |
| 代理机构 |
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