Encoding method and decoding method

Details Encoding method and decoding method Encoding method and decoding method

2002-10-02

2008-03-04

Ghayour, Mohammed (Department: 2611)

Coded data generation or conversion

Digital code to digital code converters

C341S058000, C341S059000, C375S341000, C375S259000, C375S262000, C375S265000

Reexamination Certificate

active

07339500

ABSTRACT:
The present invention allows two different block codes to be encoded by one-type of encoding section. A first-point-fixed encoding section divides m-bit data into a first-half code and a second-half code, and encodes them into an n-bit provisional code with fixed start-point state. A code A/B counter receives a reset-signal and outputs a code selection signal to a code-order reversing section and a top-code correction section. The code-order reversing section receives a codeword excluding the top code from the start-point-fixed encoding section; and outputs the codeword as is, when the code selection signal indicates a code B, and reverses the order of the codeword to generate a new codeword, and outputs the new codeword to a latch, when the code selection signal indicates a code A. The top-code correction section determines whether the top code needs to be modified, and modifies the top code, if necessary.

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