Method and circuit for decoding an analog audio signal using the BTSC standard
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United States of America Patent
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-
Dec 10, 2002
Grant Date -
Nov 14, 2002
app pub date -
Aug 17, 2001
filing date -
Jul 9, 1999
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An integrated circuit for decoding an analog audio signal includes a tuner that receives the analog audio signal and provides a sound intercarrier frequency signal. A digital demodulator receives and digitizes the sound intercarrier frequency signal to provide a digitized sound intercarrier frequency signal, and digitally demodulates the digitized sound intercarrier frequency signal to provide a digitized multichannel television sound (MTS) demodulated signal. A digital broadcast television system committee (BTSC) compatible decoder receives and decodes the digitized multichannel television sound (MTS) demodulated signal, and provides a summed (L+R) audio output signal and a difference (L-R) audio output signal.
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