Coded data generation or conversion – Digital code to digital code converters – Byte length changed
Patent
1986-08-11
1989-03-21
Shoop, Jr., William M.
Coded data generation or conversion
Digital code to digital code converters
Byte length changed
364200, 364900, H03M 700
Patent
active
048147460
ABSTRACT:
Communications between a Host Computing System and a number of remote terminals is enhanced by a data compression method which modifies the data compression method of Lempel and Ziv by addition of new character and new string extensions to improve the compression ratio, and deletion of a least recently used routine to limit the encoding tables to a fixed size to significantly improve data transmission efficiency.
REFERENCES:
patent: 4386416 (1983-05-01), Giltner et al.
patent: 4464650 (1984-08-01), Eastman
Ziv et al., "Compression of Individual Sequences Via Variable-Rate Coding"; IEEE TRans. on Info. Theory; vol. IT-24, No. 5; pp. 530-536.
Langdon, Jr., "A Note on the Ziv-Lempel Model for Compressing Individual Sequences"; IEEE Trans. on Info. Theory; vol. IT-29, No. 2; pp. 284-287.
Miller Victor S.
Wegman Mark N.
Blum Richard K.
Dowd Thomas P.
International Business Machines - Corporation
Shoop Jr. William M.
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