http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1220865-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2b8b744d430e252fa21c14c2b8dee176 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03M13-1575 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03M13-3707 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B20-1833 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H03M13-15 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H03M13-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B20-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H03M13-15 |
| filingDate | 1984-06-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1987-04-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d05eb5fb896160c6cd532f77b4785648 |
| publicationDate | 1987-04-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1220865-A |
| titleOfInvention | Decoder and reading device for optically readable record carrier |
| abstract | ABSTRACT: "Decoder for the decoding of code words which are protected against the occurrence of a plurality of symbol errors by means of a Reed-Solomon code. and reading device for op-tically readable record carriers which comprises such a decoder". A description is given of a decoding system for code words which are protected against the occurrence of a plurality of symbol errors within a code word by means of a Reed-Solomon code. After each formation of the syndrome symbols, the key equation is solved, assuming an as small as possible number of symbol errors. When a plausible number L is found using 2L syndrome symbols, an additional number of further syndrome symbols is considered for determining the discrepancy quantity. The locator equation is directly solved when it is of a low order; in the case of a higher order, a Chien search cycle is performed and each time a symbol error is found it is removed by division until the order becomes low enough for direct solution. The decoding system is suitable for implementation by means of a microcomputer and for use in a reading device for optically readable record carriers. |
| priorityDate | 1983-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.