发明名称 |
TRANSPONDER DETECTOR FOR AN RFID SYSTEM GENERATING A PROGRESSION OF DETECTION SIGNALS |
摘要 |
A transponder detector is provided with capabilities for detecting the presence and type of a transponder in its read range while operating at low power. Th e transponder detector includes an antenna assembly and a detection signal generator circuit coupled to the antenna assembly. The detection signal generator circuit is capable of generating a progression of detection signals on the antenna assembly across a range of frequencies. The transponder detector further includes a response signal receiver circuit coupled to the antenna assembly to receiv e a progression of response signals from the antenna assembly resulting from the progression of detection signals. A controller is coupled to the response signal receiver circuit which determines the presence and type of the transponder based on an evaluation of a transponder detection parameter in the progression of response signals. |
申请公布号 |
CA2582616(A1) |
申请公布日期 |
2007.09.30 |
申请号 |
CA20072582616 |
申请日期 |
2007.03.22 |
申请人 |
ASSA ABLOY IDENTIFICATION TECHNOLOGY GROUP AB |
发明人 |
BORCHERDING, ERIC J. |
分类号 |
H04B1/59;G01S13/75;G01V3/12 |
主分类号 |
H04B1/59 |
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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