Encoding apparatus, decoding apparatus, encoding method, decoding method, and information recording and playback apparatus
US7535384B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2007 |
| Grant date | May 19, 2009 |
| Priority date | — |
| Expiry date | Jun 27, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/1426
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There is provided an apparatus which obtains a circumstance where LDPC codes are interleaved without damaging modulation rules and thereby a correction ability of LDPC encoding and decoding method is fully exhibited. The apparatus includes an RLL rule applying section which modulates user data by applying an RLL rule to the user data and thereby obtains RLL encoded sequence data, an interleave section which interleaves the RLL encoded sequence data and thereby obtains interleaved sequence data, an LDPC parity generating section which subjects the interleaved sequence data to LDPC encoding processing and thereby obtains LDPC parity sequence data, an inserting section which inserts parity of the LDPC parity sequence data in the RLL encoded sequence data in a distribution manner and thereby obtains output data, and an output section which records or transmits the output data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.