Two-layer optical disk
US5930225A · kind A · utility
25Cited by
10References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1997 |
| Grant date | Jul 27, 1999 |
| Priority date | — |
| Expiry date | Oct 21, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/237
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A two-layer optical disk has a first layer of a disk shaped recording medium for storing data and a second layer of a disk shaped recording medium placed over the first layer for storing data. Data blocks A, B, C are stored in the first layer in said order. Similarly, data blocks X, Y, Z are stored in the second layer in said order. When reading the data from the two-layer optical disk, the data blocks are read in the order of A, X, B, Y, C, Z.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.