Apparatus for recording and reproducing a frequency bandwidth coded digital audio signal
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United States of America Patent
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Jul 15, 1997
Grant Date -
N/A
app pub date -
Sep 30, 1992
filing date -
Mar 4, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A digital audio signal recording and reproducing system employs a recording method which can function for a reproducing apparatus of a low price satisfying the performance of the conventional standard and also an expensive reproducing apparatus of a high sound quality which satisfy the standard of the Super CD featuring a wide band, a high sound quality, and multi channels. The recording apparatus divides recording audio signals into a plurality of frequency components and produces data for recording, respectively. Further, the recording apparatus adds identification data indicative of a frequency band of each of the data and records the resultant data. The reproducing apparatus selectively extracts each of the above data by means of the identification data and performs the reproduction of the extracted data.
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