Binary frequency-shift keying demodulator
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United States of America Patent
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Issued Date -
Oct 6, 2005
app pub date -
May 20, 2004
filing date -
Apr 5, 2004
priority date (Note) -
Abandoned
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Abstract
A BFSK demodulator comprises a frequency-to-voltage converter, a differentiator circuit, and a sampling selector circuit. The frequency-to-voltage converter converts an information input signal into a voltage signal. The differentiator circuit receives the voltage signal and produces an input signal to the sampling selector circuit for reproducing a demodulated signal by properly selecting a plurality of reference voltage signals.
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