Method and apparatus for performing efficient reseeks in an optical storage device
US6704900B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2001 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Jun 1, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2020/1062
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for performing efficient reseeks in an optical storage device. As data sectors are read by the optical storage device, address information corresponding to sectors being processed by the optical storage device is stored in a stack. The stack may be composed of shift registers that shift the address information of new sectors down the stack as they are read. When an interrupt occurs, a selector determines which stack location contains address information for the sector being processed, and transfers the address information to a register. The address information is held in the register until it is accessed by a microprocessor. The microprocessor uses the address information to determine a reseek location, and causes the sector being processed to be read again.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.