Method and apparatus for error code correction
US7356753B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 8, 2004 |
| Grant date | Apr 8, 2008 |
| Priority date | — |
| Expiry date | Feb 9, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2020/1836
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for ECC (error code correction) adopts a first directional first decoding, a first directional second decoding with a greater error tolerant ability than the first directional first decoding, a second directional first decoding, and a second directional second decoding with a greater error tolerant ability than the second directional first decoding. The ECC method includes steps of: read to be decoded; if there exists at least one solution cannot be efficiently solved after continuous executing the first directional first decoding and the second directional second decoding, execute the decoding action according to a predetermined flow control rule; if there exists no correction performed during the ECC decoding and switch to the other directional decoding, the un-modified value is added by one; and if the un-modified value reached a maximum un-modified value, an ECC failure is confirmed and then stop the ECC decoding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.