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Apparatus for recording and reproducing a frequency bandwidth coded digital audio signal

  • US 5,648,948 A
  • Filed: 09/30/1992
  • Issued: 07/15/1997
  • Est. Priority Date: 03/04/1992
  • Status: Expired due to Fees
First Claim
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1. A method for recording digital audio signals on a recording medium, comprising the steps of:

  • receiving an original digital audio signal having a plurality of different frequency bands;

    converting original digital audio signals into separate channels, each channel containing a different group of band digital data for each frequency band of said original digital audio signals;

    dividing each of said band digital data groups in each of said channels along a time base, thereby obtaining a plurality of band subblocks obtained from said original digital audio signals;

    combining said ones of said band subblocks existing in a same time zone among said band subblocks, thereby obtaining an information data section composed of a plurality of said combined subblocks;

    producing a header section including identification data blocks indicative of each of said frequency bands of each subblock combined and included in said information data section;

    combining said subblocks of said information data section and said identification data blocks of said header section, thereby producing a block including a header section and an information data section obtained from said original digital audio signal; and

    recording said block on said recording medium.

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