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Real-time digital audio compression/decompression system

  • US 5,673,206 A
  • Filed: 06/26/1996
  • Issued: 09/30/1997
  • Est. Priority Date: 12/29/1993
  • Status: Expired due to Term
First Claim
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1. A computer program product comprising:

  • a computer useable medium having computer program code means embodied in said medium for compressing a stream of coded data samples, the computer useable medium further comprising;

    computer program code means for comparing a first data sample value and a second consecutive data sample value in the stream and for forming a difference value between the first data sample value and the second data sample value;

    computer program code means responsive to the difference value and the second data sample value for forming a compressed data stream by inserting the difference value into the compressed data stream in place of the second data sample value when the difference value occupies less storage space than the second data sample value; and

    computer program code means responsive to the compressed data stream forming code means for inserting a predetermined flag value into the compressed data stream when the difference value occupies at least the same storage space as the second data sample value.

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