Optical disk device
US7539097B2 · kind B2 · utility
1Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2005 |
| Grant date | May 26, 2009 |
| Priority date | — |
| Expiry date | Apr 10, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2020/1268
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical disk device is provided with a first analog-to-digital converter for converting a push-pull signal detected from an optical disc medium into a digital sampling signal according to a sampling clock in the vicinity of a channel frequency. The optical disk device also includes an address polarity information detection circuit for detecting address polarity information from the digital sampling signal, and an address position information detection circuit for detecting address position information from the digital sampling signal while maintaining continuity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.