Optical disc drive apparatus and method

Details Optical disc drive apparatus and method Optical disc drive apparatus and method

2007-11-20

2007-11-20

Hindi, Nabil (Department: 2627)

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

Reexamination Certificate

active

10900924

ABSTRACT:
An optical disc drive is has a voice coil motor that carries and moves focal optics to focus a laser beam onto an optical disc The voice coil motor is responsive to input signals which are based on a calibrated temperature. A temperature measurement is made at the voice coil motor for an operating temperature, and a difference is calculated between calibrated and operating temperatures. The temperature differences are used to calculate adjustment in input signals used to drive the voice coil motors.

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European Search Report for European Application No. EP 05014293.4 Report issued Apr. 24, 2007.
Translation of Japan Office Action dated Aug. 29, 2006 for JP Patent Application No. 2005-217315, (4 pgs).

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