发明名称 Electromagnetic transponder reader
摘要 A method and a circuit for demodulating a signal transmitted by an electromagnetic transponder, including a sensor of a variable which is a function of the load formed by the transponder on an oscillating circuit, a phase demodulator and an amplitude demodulator at least functionally in parallel and receiving a signal coming from said sensor, a summer of the results provided by the demodulators, and a delay element in series with a first one of said demodulators, to compensate for a possible propagation time difference therebetween.
申请公布号 US6847256(B2) 申请公布日期 2005.01.25
申请号 US20030454119 申请日期 2003.06.04
申请人 STMICROELECTRONICS, S.A. 发明人 ENGUENT JEAN-PIERRE
分类号 G06K17/00;G06K7/00;H03D5/00;H04B1/59;H04B5/02;(IPC1-7):H04Q5/22 主分类号 G06K17/00
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