Device and method for real time correction of row data from DVD media
US6260169A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 31, 1998 |
| Grant date | Jul 10, 2001 |
| Priority date | — |
| Expiry date | Mar 31, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/2906
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Disclosed is a device for performing a header and row correction on rows of sector data that are read sequentially from a DVD medium. The device includes a pair of row buffers, a syndrome generator, and an error correction circuitry. The pair of row buffers sequentially receives and stores a current row of the sector data. When one buffer is receiving a next row of the sector data and is functioning as a receive buffer, the other buffer stores the current row of the sector data and functions as a correction buffer to be used in error correction. The syndrome generator receives the current row of the sector data and is configured to sequentially generate a row syndrome for the current row. The row syndrome is configured to indicates whether an error is present in the current row that is stored in the correction buffer. The error correction circuitry is coupled to the syndrome generator and is configured to receive the row syndrome associated with the current row that is stored in the correction buffer. The error correction circuitry is configured to correct the error that is present in the current row that is contained in the correction buffer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.