Method and apparatus for adaptive data compression

Details Method and apparatus for adaptive data compression Method and apparatus for adaptive data compression

1987-10-15

1989-11-14

Shoop, Jr., William M.

Coded data generation or conversion

Digital code to digital code converters

Unnecessary data suppression

341 51, 341106, H03M 730

Patent

active

048810754

ABSTRACT:
Data compression/decompression apparatus and methods are provided which exhibit significant data compression improvement over prior art methods and apparatus. This is achieved by providing an adaptive characteristic in which a pair of data compression/decompression translation tables are constructed based on the data which is to be compressed or decompressed. One table is used to compress or decompress while the other is being rebuilt, thus reflecting the characteristics of the most recent input data.

REFERENCES:
patent: 4099257 (1978-07-01), Arnold et al.
patent: 4355306 (1982-10-01), Mitchell
patent: 4464650 (1984-08-01), Eastman et al.
patent: 4558302 (1985-12-01), Welch

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