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Method and apparatus for iterative compression of digital data

  • US 5,486,826 A
  • Filed: 05/19/1994
  • Issued: 01/23/1996
  • Est. Priority Date: 05/19/1994
  • Status: Expired due to Fees
First Claim
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1. A method for compressing digitized information comprising the steps of:

  • a) storing input digital information in a first storage means;

    b) applying a compression process in a compressor means to the stored input digital information to obtain first information bit sets and a first control/data set about the first information bit sets, said first information bit sets intended to be a reduced number of information bit sets compared to said input digital information, and storing said first information bit sets and said first control/data set in a second storage means as first processed data;

    thereafterc) testing said first processed data in comparison to said input digital information to determine if total information storage requirements have been reduced; and

    if sod) testing said first processed data against a compression threshold; and

    , if the compression threshold is not met,e) applying an entropy transformation on said first processed data to obtain transformed data;

    thereuponf) storing as output information at least said transformed data in a third storage means as a representation of processed information;

    g) repeating step b) with said representation of processed information as said stored input digital information; and

    h) repeating steps c) through g) until no further compression is desired.

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