Optical disc drive apparatus and method

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

2007-03-06

2007-03-06

Psitos, Aristotelis M. (Department: 2627)

Dynamic optical information storage or retrieval

Dynamic mechanism optical subsystem

Having power driven optical transducer assembly

C720S666000, C720S681000, C356S150000, C369S244100

Reexamination Certificate

active

10824103

ABSTRACT:
An optical pickup unit (OPU) includes a moveable structure that is moved by a voice coil motor component in response to an input signal. The moveable structure includes a pattern that is moved corresponding to the input signal. An encoder reads the pattern to generate an output signal that corresponds to pattern movement as the input signal is applied over a period of time. A controller calculates a calibration factor relating the pattern movement to the input signal.

REFERENCES:
patent: 4701050 (1987-10-01), Oshida et al.
patent: 5473424 (1995-12-01), Okumura
patent: 5760564 (1998-06-01), Novak

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