Spread intermediate frequency radio receiver with adaptive spurious rejection
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United States of America Patent
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Oct 8, 1996
Grant Date -
N/A
app pub date -
May 26, 1994
filing date -
May 26, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A radio receiver in which the received signal is spread and subsequently despread in order to identify unwanted signals. One embodiment of the present invention is comprised of a frequency-hopping spreading synthesizer that operates in synchronization with a despreader synthesizer such that unwanted signals are effectively suppressed based upon different spreading characteristics of the desired and undesired signals. Use of a logic device, in one case a digital signal processor, in combination with a state-level monitor allows for the reconfiguring of the receiver such that a state containing a large interferer can be removed from further signal processing.
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