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
First Claim
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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Accused Products
Abstract
Data is compressed through implementing the inserting of a regressive reference string scheme, each such reference replacing a particular data string through referring to an associated earlier data string of identical content. In particular, the regressive string reference item to an encoded object is inserted as being based on pointing and delimiting a pointee string, and identifying the reference item through an associated signalling element.
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Citations
16 Claims
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 16)
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11. A compression system being arranged for executing compression of a data stream through inserting means for 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 system being characterized in that: said inserting means are arranged for 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 referencing means for providing a back-reference scheme for straightforwardly backreferencing to such reference strings. - View Dependent Claims (12, 13, 14, 15)
Specification