Optical data system and optical disk relating thereto
US6570839B2 · kind B2 · utility
5Cited by
88References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2001 |
| Grant date | May 27, 2003 |
| Priority date | — |
| Expiry date | Aug 3, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2525
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical disk includes a plurality of tracks that are arranged in a predetermined number of zones. Each track is divided into a plurality of sectors. The sector number is different in each zone. The sector increases in number moving outwardly on the disk. The optical disk also includes a format marking. The format marking includes a sector field for each sector. The format marking is erasably recorded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.