05532694 is referenced by 122 patents and cites 80 patents.

An apparatus and method for converting an input data character stream into a variable length encoded data stream in a data compression system. A sliding window data compression algorithm is combined with Huffman encoding on the strings and raw bytes. The Huffman table, in a compressed form, is prepended to the encoded output data. The Huffman codes representing the shortest strings encode both the string length and part of the string offset. Assigning Huffman codes to represent the combined length and offset allows the use of a smaller sliding window size without sacrificing compression ratio. The smaller window size allows implementations in software and hardware to minimize memory usage, thus reducing cost.

Title
Data compression apparatus and method using matching string searching and Huffman encoding
Application Number
297152
Publication Number
5532694
Application Date
July 7, 1995
Publication Date
July 2, 1996
Inventor
Douglas L Whiting
Carlsbad
CA, US
Clay Mayers
San Diego
CA, US
Agent
Irell & Manella
Assignee
Stac Electronics
CA, US
IPC
H03M 7/40
View Original Source