Optical recording medium
US6510130B2 · kind B2 · utility
10Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2001 |
| Grant date | Jan 21, 2003 |
| Priority date | — |
| Expiry date | Aug 29, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/00745
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical recording medium that enables a recording or reproduction apparatus to perform accurate tracking servo control even if intersymbol interference occurs. An optical recording medium includes a plurality of frames continuously extending in an information reading direction. Each frame is defined by a servo region for recording tracking pits used in tracking servo control and a data region for recording information data. A position of each of the respective tracking pits in each respective servo region is changed in the information reading direction between successive frames.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.