Optical disc drive

Details Optical disc drive Optical disc drive

2006-09-29

2009-11-10

Agustin, Peter Vincent (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C720S662000

Reexamination Certificate

active

07616532

ABSTRACT:
A small-sized optical disc drive includes one voice coil motor magnet within which a tracking coil and two focusing coils are disposed such that the tracking coil straddles the two poles of permanent magnets that are adjacently disposed. The two focusing coils are disposed on either side of the tracking coil, with each of the two focusing coils being only disposed over one of the permanent magnets.

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patent: 2003-500787 (2003-01-01), None
patent: WO 00/72312 (2000-11-01), None
ASME/JSME Joint Conference on Micromechatronics for Information and Precision Equipment (MIPE) Santa Clara, CA Jun. 21-23, 2006.

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