Compact disc subcode packing and error correction detection
US6591392B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 1999 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Nov 24, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2545
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A subcode processing circuit of an optical disc drive, and a method for processing subcode data are disclosed. The subcode processing circuit includes a shift register circuit for processing a plurality of standard subcode data bytes that are obtained from an optical disc media of the optical disc drive. The processing is configured to pack the plurality of standard subcode data bytes into a plurality of packed subcode data bytes. The plurality of packed subcode data bytes is configured to be less than the plurality of standard subcode data bytes. In one example, the shift register circuit is configured to include a plurality of shift registers and a multiplexer to assist in the processing. The subcode processing circuit is further configured to perform error correction for each byte of the plurality of packed subcode data bytes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.