Method and apparatus for encoding/decoding in fixed length

Details Method and apparatus for encoding/decoding in fixed length Method and apparatus for encoding/decoding in fixed length

2006-03-07

2008-03-25

Nguyen, Khai M. (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

To or from minimum d.c. level codes

C341S059000, C375S253000

Reexamination Certificate

active

07348900

ABSTRACT:
A modulation method for a first data string having a plurality of symbols is disclosed. The method includes: appending a data string to the first data string to form a second data string; and converting the second data string to a code word sequence by converting each of the symbols in the first data string to a code word according to predetermined modulation rules and a symbol set selected from the second data string. Each code word has a first fixed number of bits, each symbol has a second fixed number of bits, and each symbol set has a fixed number of symbols.

REFERENCES:
patent: 6172622 (2001-01-01), Nakagawa et al.
patent: 6496541 (2002-12-01), Kahlman et al.
patent: 6686855 (2004-02-01), Hayami et al.
patent: 6690308 (2004-02-01), Hayami
patent: 6879637 (2005-04-01), Nakagawa et al.
patent: 6950042 (2005-09-01), Nakagawa et al.
patent: 2003/0184456 (2003-10-01), Hayami et al.
patent: 2004/0130467 (2004-07-01), Nakagawa et al.

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