Phase modulated system with phase domain filtering
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United States of America Patent
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-
Oct 9, 1990
Issued Date -
N/A
app pub date -
May 13, 1988
filing date -
Apr 15, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A phase modulation system includes a phase mapping circuit (218) for mapping binary data into a plurality of discrete phase values in accordance with a predetermined phase modulation scheme. The discrete phase values are then filtered in the phase domain by a filter (220) to provide a filtered output. This filtered output is then digitized and input to a numerically controlled oscillator for phase modulating a carrier.
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