Error-locator-polynomial generation with erasure support
US8413023B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2009 |
| Grant date | Apr 2, 2013 |
| Priority date | — |
| Expiry date | Aug 22, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/41
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A system and method for correcting errors in an ECC block using erasure-identification data when generating an error-locator polynomial. In an embodiment, a ECC decoding method, uses “erasure” data indicative of bits of data that are unable to be deciphered by a decoder. Such a method may use an Berlekamp-Massey algorithm that receives two polynomials as inputs; a first polynomial indicative of erasure location in the stream of bits and a syndrome polynomial indicative of all bits as initially determined. The Berlekamp-Massey algorithm may use the erasure identification information to more easily decipher the overall codeword when faced with a error-filled codeword.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.