Recording and/or reproducing apparatus with optical pickup actuator, and methods for same
US7466635B2 · kind B2 · utility
0Cited by
1References
16Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 13, 2005 |
| Grant date | Dec 16, 2008 |
| Priority date | — |
| Expiry date | Jan 31, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0956
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A recording/reproducing apparatus and an optical pickup actuator, and corresponding methods, for driving a bobbin in a focusing direction, a tracking direction or a tilting direction by use of a magnetic driving unit movably supported by a support member, where an object lens is mounted on the bobbin and a plurality of slits are formed on side walls of the bobbin. According to embodiments of the present invention, a secondary resonant frequency and a value of a secondary resonant peak are increased, thereby improving a gain margin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.