Data recording and reproducing system, and data recording and reproducing method
US7430705B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 24, 2005 |
| Grant date | Sep 30, 2008 |
| Priority date | — |
| Expiry date | Apr 17, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/6343
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A data recording and reproducing system adds a first error correcting code to input data to generate a first code block, encodes the first code block with a second error correcting code to generate a second code block, interleaves the second code block to generate a recording block, and records and reproduces the recording block via a partial response channel including a recording medium. An output signal from the partial response channel, and thus the second code block, is decoded; the decoded data and the reliability of the decoded data is determined, based on likelihood information obtained during iterative decoding; and the first error correcting code is decoded. The decoded data and the reliability information are supplied to the first error correcting code decoder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.