发明名称 Input and output filtering system for a direct conversion receiver
摘要 A direct conversion receiver including a filtering system for improving signal reception in the receiver is disclosed. In one embodiment, the direct conversion receiver comprises a first filter adapted to receive a plurality of receive signals comprising a receive band. The first filter is configured to attenuate a frequency range of the receive band to de-emphasize signals within of the frequency range. The direct conversion receiver also comprises a second filter coupled to a signal processing logic output and is configured to amplify the signals in the frequency range of the receive band, the signal processing logic being coupled to the output of the first filter and configured to substantially attenuate a plurality of unwanted signals in the receive band.
申请公布号 US2003232611(A1) 申请公布日期 2003.12.18
申请号 US20020172239 申请日期 2002.06.14
申请人 VASA JOHN E. 发明人 VASA JOHN E.
分类号 H04B1/12;H04B1/30;(IPC1-7):H04B1/10 主分类号 H04B1/12
代理机构 代理人
主权项
地址