Device and method for detecting synchronization patterns in CD-ROM media
US6708307B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 10, 2000 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | Aug 2, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a peripheral device for reliably detecting synchronization patterns in CD-ROM media. The peripheral device has an internal circuitry for controlling and processing data that is read from a medium of the peripheral device is disclosed. The peripheral device comprises a digital signal processor, a decoder circuit, and a state machine. The digital signal processor is configured to receive the data that is being read from the medium of the peripheral device. The decoder circuit is coupled to the digital signal processor and forms a part of the internal circuitry. Further, the decoder circuit includes an internal RAM that is configured to store a sector of the data including a current sync pattern and a next sync pattern. The state machine resides in the decoder for analyzing the current sync pattern and the next sync pattern of the sector of the data. In the analysis mode, the state code is configured to determine whether a fatal error is present in the data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.