Efficient high-speed Reed-Solomon decoder
US7051267B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2002 |
| Grant date | May 23, 2006 |
| Priority date | — |
| Expiry date | Jan 29, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/1515
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A Reed-Solomon decoder includes an inversionless Berlekamp-Massey algorithm (iBMA) circuit with a pipelined feedback loop. An error locator polynomial generator generates error locator polynomial values. A scratch polynomial generator generates scratch polynomial values. A discrepancy generator generates discrepancy values based on the error locator polynomial values and the scratch polynomial values. Multipliers used to generate the discrepancy values are also used to generate the error locator polynomial to reduce circuit area. A first delay circuit delays the discrepancy values. A feedback loop feeds back the delayed discrepancy values to the error locator polynomial generator and the scratch polynomial generator. An error location finder circuit communicates with the iBMA circuit and identifies error locations. An error value computation circuit communicates with at least one of the error location finder circuit and the iBMA circuit and generates error values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.