Method and apparatus for decoding
US4727547A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 9, 1985 |
| Grant date | Feb 23, 1988 |
| Priority date | — |
| Expiry date | Jul 9, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/1809
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Method and apparatus for transforming a first sequence of digital data and correction words having a first ordering thereof wherein blocks of data and correction words in the first ordering are formed out of the first sequence Data and correction words are selected from the first sequence and are combined in such manner as to form a second sequence with a second ordering. First and second groups of data and correction words are selected out of the second sequence. The first and second groups have one comon word which also belongs in one of the blocks. The data groups have one common word which also belongs in one of the blocks. The data words of the first and second groups are submitted simultaneously to a checking operation. The results of this operation are evaluated to decide if erroneous data words can be corrected. The second sequence of words is corrected using the correction words indicated by the evaluation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.