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Method for Lossless Compression of Text Character Documents

IP.com Disclosure Number: IPCOM000053777D
Original Publication Date: 1981-Nov-01
Included in the Prior Art Database: 2005-Feb-12

Publishing Venue

IBM

Related People

Authors:
Rissman, JJ [+details]

Abstract

This invention relates to a method for the lossless compression of text character documents, comprising the steps of (1) lossy pattern matching, using a new entropy-based threshold function in order to generate contexts (skew numbers); and (2) arithmetic coding of the mismatch between characters and a library reference character, using the reference character as the context.