Disk and disk recording apparatus
US6285638A · kind A · utility
18Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2000 |
| Grant date | Sep 4, 2001 |
| Priority date | — |
| Expiry date | Oct 23, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2562
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk of the present invention includes a first storage area for reproducing data and a second storage area for recording and reproducing data, the number of sectors in each track in the first and second storage areas close to each other is larger in the first storage area than in the second storage area, and leading edges of sectors in each track in the first storage area are aligned in at least one line in a radius direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.