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DATA COMPRESSION METHOD AND SYSTEM THAT USE A REGRESSIVE STRING REFERENCE, POINTING TO AND DELIMITING AN ENCODED POINTEE STRING, AND IDENTIFY THE REFERENCE THROUGH A SIGNALLING ELEMENT, AN ENCODING DEVICE AND A DECODING DEVICE ARRANGED FOR IMPLEMENTING THE METHOD, AND A STORAGE MEDIUM PROVIDED WITH INFORMATION PRODUCED BY SUCH ENCODING DEVICE AND/OR ARRANGED FOR DECODING BY SUCH DECODING DEVICE

  • US 6,642,860 B2
  • Filed: 01/08/2002
  • Issued: 11/04/2003
  • Est. Priority Date: 01/11/2001
  • Status: Expired due to Fees
First Claim
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1. A method for executing compression of a data stream through systematically implementing the inserting of regressive pointer-length reference strings along such stream, each such reference indicating the replacing of a particular data string through referring to an associated earlier data string of identical content as said particular data string,said method being characterized by the steps of:

  • inserting said regressive reference string as referring to an encoded object, through pointing to a pointee object, identifying said regressive reference string through a respectively associated value of a signalling element, as well as identifying unreplaced data through a respectively associated further value of a signalling element, and providing a back-reference scheme for straightforwardly backreferencing to such reference strings.

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