发明名称 |
ADJUSTABLE CIRCUIT AND RFID READER DEVICE |
摘要 |
The present invention relates to an adjustable circuit for filtering a transmission channel of an RFID signal and for suppressing a carrier signal in the reception path between an input gate and an output gate, including at least one adjustable oscillator for generating an oscillator signal, at least one input mixing stage cooperating with the oscillator for mixing an input signal by means of the oscillator signal to an intermediate frequency and a blocking device arranged downstream of the input mixing stage or the input mixing stages for suppressing the carrier signal at the intermediate frequency.
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申请公布号 |
US2009224887(A1) |
申请公布日期 |
2009.09.10 |
申请号 |
US20090400183 |
申请日期 |
2009.03.09 |
申请人 |
SADEGHFAM ARASH;HEUERMANN HOLGER |
发明人 |
SADEGHFAM ARASH;HEUERMANN HOLGER |
分类号 |
H04Q5/22;H04B1/10 |
主分类号 |
H04Q5/22 |
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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