Optical pickup control circuit and optical disc drive device
US8391111B2 · kind B2 · utility
0Cited by
1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2011 |
| Grant date | Mar 5, 2013 |
| Priority date | — |
| Expiry date | Jun 7, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0941
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical pickup control circuit includes an adding portion that adds a tracking driving signal which is for moving an objective lens, provided to face a discoid optical information recording medium, in a tracking direction of the corresponding optical information recording medium, to a tilt driving signal which is for moving the corresponding objective lens in a tilt direction of the corresponding optical information recording medium, and supplies the signal to a tilt actuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.