Data processing apparatus and method using data compression

Details Data processing apparatus and method using data compression Data processing apparatus and method using data compression

1990-12-12

1998-11-17

Logan, Sharon D.

Coded data generation or conversion

Digital code to digital code converters

Adaptive coding

341 67, 341 76, 341106, 341107, H03M 742, H03M 736

Patent

active

058382666

ABSTRACT:
A method and apparatus for processing data using data compression. During compression, a relationship between a next data word and a previous data word is determined and that relationship is encoded into variable bit-length code words, the bit-length being inversely proportional to the probability of occurrence of the relationship between the data words. The encoded relationships are transmitted rather than the data words themselves. In one embodiment, a look-up table of code words is stored which is indexed according to the possible relationships. A relationship is determined between the previous and next data words and the relationship is matched to the index to find the corresponding code word in the look-up table. The corresponding code word is retrieved from the look-up table, is substituted for the relationship, and is transmitted.

REFERENCES:
patent: 4591829 (1986-05-01), Takeda
patent: 4626829 (1986-12-01), Hanck
patent: 4797653 (1989-01-01), Takayama
patent: 4816901 (1989-03-01), Music et al.
patent: 4843466 (1989-06-01), Music et al.
patent: 4847677 (1989-07-01), Music et al.
patent: 4849807 (1989-07-01), Music et al.
patent: 4857991 (1989-08-01), Music et al.
patent: 4857993 (1989-08-01), Music et al.
patent: 4862167 (1989-08-01), Copeland, III
patent: 4914508 (1990-04-01), Music et al.
patent: 5007102 (1991-04-01), Haskell

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