Method and apparatus for multiple bit encoding and decoding of d

Details Method and apparatus for multiple bit encoding and decoding of d Method and apparatus for multiple bit encoding and decoding of d

1991-04-09

1993-06-01

Logan, Sharon D.

Coded data generation or conversion

Digital code to digital code converters

Tree structure

341106, H03M 700, H03M 742

Patent

active

052164233

ABSTRACT:
A decoder/encoder apparatus is provided which can be programmed to decode data and to encode data. To encode data, a memory within the apparatus is preloaded with a first memory map which is descriptive of a selected tree-based binary code. The first memory map is a reverse tree representation of the selected tree-based binary code. Data is then provided to the apparatus and is processed as specified by the first memory map thus generating encoded data. To decode data, the same memory is preloaded with a second memory map which is descriptive of the same selected tree-based binary code. The second memory map is a tree representation of the same selected tree-based binary code. Encoded data is then provided to the apparatus and is processed as specified by the second memory map thus generating decoded data.

REFERENCES:
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patent: 4591829 (1986-05-01), Takeda
patent: 4853696 (1989-08-01), Mukherjee
patent: 4990910 (1991-02-01), Takishima et al.
patent: 5021782 (1991-06-01), Perron et al.

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