Multiple sections for dual-layer optical recording medium
US6801494B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 31, 2001 |
| Grant date | Oct 5, 2004 |
| Priority date | — |
| Expiry date | Sep 26, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2562
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A optical storage disk provides multiple logical disks without the need to physically alter the structure of the optical storage disk. According to one example embodiment of the present invention, a dual-layer data disk is adapted to store data in each of two layers readable by an optical disk reader. A first region of the disk includes data recorded for a first logical disk, and a second region is adapted to store data for a second logical disk, and the first and second regions are located on the two layers. Each of the data logical disks includes a lead-in region and a lead-out region and for data therebetween traversing each of the two layers. The lead-out region of the first logical disk stores pointing data which points to the lead-in region of second logical disk, and the logical disks are not necessarily physically contiguous.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.