Receiver
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United States of America Patent
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-
Apr 2, 2002
Grant Date -
N/A
app pub date -
Mar 26, 1999
filing date -
Mar 30, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention intends to provide a receiver which receives a signal by switching a plurality of communication systems, wherein a circuit scale is reduced to intend to the miniaturization of a device. The receiver converts a received signal to a base band signal by a local oscillation frequency based on the selected communication system by a mixer, limits a band by an LPF through which signals of all communication systems can pass, performs a band limitation based on the communication system by weighting with a tap coefficient based on the selected communication system to synthesis by a transversal filter, and demodulates a signal by a demodulation system based on the selected communication system by a demodulating unit.
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