发明名称 FM RECEIVER WITH BANDWIDTH CONTROL MEANS
摘要 FM receivers use IF filters to realize an optimum IF bandwidth. As the number of FM transmitters has increased the last decades the required channel selectivity also has to be increased. The invention provides a FM receiver with control means for controlling the IF filter. The control means receive a first input signal in dependence of a received RF level signal and a second input signal in dependence of a demodulated signal and have an output coupled to the controllable IF filter.
申请公布号 WO0077939(A1) 申请公布日期 2000.12.21
申请号 WO2000EP05248 申请日期 2000.06.07
申请人 KONINKLIJKE PHILIPS ELECTRONICS N.V. 发明人 KIANUSH, KAVEH;SANDEE, JACOBUS, C.
分类号 H04B1/26;H04B1/06;H04B1/10;H04B1/18;(IPC1-7):H04B1/10 主分类号 H04B1/26
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