Optical disk apparatus and starting method thereof
US7965611B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 27, 2006 |
| Grant date | Jun 21, 2011 |
| Priority date | — |
| Expiry date | Oct 28, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2007/13727
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a three-wavelength-compliant optical disk apparatus, the present invention enables to shorten time required for starting the apparatus such as discrimination of an optical disk and adjustment of a beam-expander. At the time of starting the apparatus, the operation of a tray driver which pulls a loaded optical disk within the apparatus is conducted in parallel with the operation of a beam-expander driver which allows a movable lens of the beam-expander to move to a predetermined position in accordance with the kind of optical disk. Further, at the time of discriminating the disk, the number of times an optical disk of a specific kind has continuously been loaded into the apparatus to date is stored in a memory, and a sequence of discriminating the kind of optical disk that is newly discriminated is switched by referring to the history information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.