Apparatus for encoding and decoding of low-density...

Details Apparatus for encoding and decoding of low-density... Apparatus for encoding and decoding of low-density...

2008-07-01

2008-07-01

Chase, Shelly (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Error/fault detection technique

Reexamination Certificate

active

07395494

ABSTRACT:
An LDPC code encoding apparatus includes: a code matrix generator for generating and transmitting a parity-check matrix comprising a combination of square matrices having a unique value on each row and column thereof; an encoding means encoding block LDPC codes according to the parity-check matrix received from the code matrix generator; and a codeword selector for puncturing the encoded result of the encoding means to generate an LDPC codeword. The code matrix generator divides an information word to be encoded into block matrices having a predetermined length to generate a vector information word. The encoding means encodes the block LDPC codes using the parity-check matrix divided into the block matrices and a Tanner graph divided into smaller graphs in correspondence to the parity-check matrix.

REFERENCES:
patent: 6961888 (2005-11-01), Jin et al.
patent: 2003/0033575 (2003-02-01), Richardson et al.
patent: 2005/0246616 (2005-11-01), Choi et al.
patent: 1020020095749 (2002-12-01), None
patent: 1020030016720 (2003-03-01), None

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