Back to results
US 8,543,887 B2Granted
Coding method and coding device
AssigneeSony Corporation
InventorMakoto Noda
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeSony Corporation
InventorMakoto Noda
Estimating the term…
The present invention relates to coding method and coding device that allow Rate-Compatible LDPC (low-density parity-check) codes to have favorable BER performance both with a low code rate and with a high code rate. In coding of LDPC codes that have plural code rates and whose all parity check matrices are composed of plural cyclic matrices, a coder 121 performs the coding in such a way that 1<w0 and w1<w0 are satisfied when the maximum column weight of the cyclic matrices in the check matrix of a certain code whose code rate is not the minimum value among the LDPC codes is defined as w0 and the maximum column weight of the cyclic matrices in the check matrix of a code having a code rate lower than that of the certain code is defined as w1.
A data encoding method employing a data coding device for coding LDPC (low-density parity-check) code that have a plurality of code rates and whose all parity check matrices are composed of a plurality of cyclic matrices, the data encoding method being implemented by a microprocessor, the method comprising:
A data encoding device for coding of LDPC codes that have a plurality of code rates and whose all parity check matrices are composed of a plurality of cyclic matrices, the data encoding device comprising:
Dependencies are inferred from the claim text.