Decoding device for code symbols protected by Reed-Solomon code
US4683572A · kind A · utility
25Cited by
5References
13Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 24, 1984 |
| Grant date | Jul 28, 1987 |
| Priority date | — |
| Expiry date | Sep 24, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/2924
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
For the decoding of a data stream which is word-wise protected against errors by a double Reed-Solomon code with symbol-wise interleaving over the code words, first the reliability information for the constituent symbols is aggregated for a code word. Therefrom the strategy is determined, entailing the number of erase symbols and the maximum number of error symbols to be corrected. The correction result is compared with a reliability code and on the basis thereof all symbols obtain an at least trivalent secondary reliability indication for decoding in the second code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.