Frequency conversion circuit and radio communication apparatus with the same
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United States of America Patent
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Apr 21, 1998
Grant Date -
N/A
app pub date -
Sep 14, 1995
filing date -
Sep 16, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A frequency conversion apparatus comprising a sampling circuit for receiving a first intermediate frequency signal extracted from an input signal and having a predetermined intermediate frequency and a predetermined band width and sampling the first intermediate frequency signal in accordance with a predetermined sampling frequency signal, to output a second intermediate frequency signal, and a sampling signal generator for outputting the sampling frequency signal to the sampling circuit, the sampling frequency signal having a frequency determined so that an integer multiple of not less than three times the sampling frequency is outside a frequency range of the input signal.
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