Optical disc apparatus
US7936652B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2008 |
| Grant date | May 3, 2011 |
| Priority date | — |
| Expiry date | Mar 24, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
For achieving an improvement on recording/reproducing quality of information, with enabling more adequate tilt adjustment, even for an optical disc to be used under a circumstance having a large temperature change, an optical disc apparatus for conducting recording or reproducing of video information onto/from the optical disc 2, through buffers 17 and 18, while conducting a tilt adjustment through a learning of a tilt amount, comprises a temperature sensor 4 for detecting temperature within an optical pickup 1, wherein a control unit determines whether a relearning of the tilt amount of the optical pickup, upon basis of a change of temperature detected, a movement amount of the optical pickup between the time when a previous learning is done and the time when a present learning is done, and a remaining memory capacity of the buffers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.