Optical disk and recording/reproducing apparatus using multiple address block groups shifted oppositely with multiple address blocks
US6172960A · kind A · utility
12Cited by
6References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1999 |
| Grant date | Jan 9, 2001 |
| Priority date | — |
| Expiry date | Jan 4, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2537
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Address groups are composed of two of address blocks 16, 17, 18, and 19, where the address blocks 16, 17, 18, and 19 are disposed in a sector address region 5 and include identifiable information of address numbers 13 and overlapping sequential numbers 14. The address groups are disposed so that each group is alternately shifted from a track center 2 toward the inner periphery side or the outer periphery side, by a width substantially equal to half the track pitch, along the radius direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.