发明名称 |
Adjustable circuit and RFID reader unit |
摘要 |
<p>The adjustable filtering circuit (300) has an adjustable oscillator (314) that generates an oscillator signal, and input mixing stages (318,320) that mix input signal with the oscillator signal, to generate an intermediate frequency signal. A band-stop filter (322) is arranged in the downstream side of one of the mixing stages, for suppressing carrier signal in the intermediate frequency signal. An independent claim is included for radio frequency identification (RFID) reader device.</p> |
申请公布号 |
EP2101279(A3) |
申请公布日期 |
2013.04.03 |
申请号 |
EP20090003451 |
申请日期 |
2009.03.10 |
申请人 |
PEPPERL + FUCHS GMBH |
发明人 |
SADEGHFAM, ARASH;HEUERMANN, HOLGER |
分类号 |
G06K7/10;H04B1/10;H04B1/12;H04B1/52 |
主分类号 |
G06K7/10 |
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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