Optical disk reroducing device
US6577569B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2000 |
| Grant date | Jun 10, 2003 |
| Priority date | — |
| Expiry date | Apr 7, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2545
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical disk reproducing device, comprises a judgement circuit which, under an operating condition in which demodulated data amounting for one frame are being stored in a memory in synchronism with internally supplemented synchronous signals, and when an external first synchronous signal is detected from read-out signals, judges whether the external first synchronous signal appears in the first half or in the second half in the period of the internally supplemented synchronous signal, and when the judgement circuit judges that the external first synchronous signal appeared in the first half of the period of the internally supplemented synchronous signal, the demodulated data amounting for one frame are stored in the memory at a memory position for the immediately previous frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.