US Patent 4,876,541

Number:	4,876,541
Title:	Stem [sic] for dynamically compressing and decompressing electronic data
Filed:	15-Oct-1987
Granted:	24-Oct-1989
Inventor:	James A. Storer
Assignee:	Data Compression Corporation

Comment by FAQ:A data compression system for encoding and decoding textual data, including an encoder for encoding the data and for a decoder for decoding the encoded data.