Method and apparatus for tilt correction and tilt driving...

Details Method and apparatus for tilt correction and tilt driving... Method and apparatus for tilt correction and tilt driving...

2007-05-01

2007-05-01

Edun, Muhammad (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S053190, C369S053120

Reexamination Certificate

active

10774395

ABSTRACT:
In the tilt correction method, information about inclination of an object lens relative to an information recording medium is acquired. A direct current signal Sdc for correcting the inclination is produced based on the information. An alternating current signal Sac having a prescribed signal characteristic is superposed onto the direct current signal Sdc to produce a driving signal Sout. The driving signal Sout is supplied to a driving mechanism to correct the inclination of the object lens against friction.

REFERENCES:
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patent: 2002/0039338 (2002-04-01), Kadowaki et al.
patent: 2002/0060964 (2002-05-01), Park
patent: 2002/0080692 (2002-06-01), Nagaoka et al.
patent: 62-141636 (1987-06-01), None
patent: 01-213837 (1989-08-01), None
patent: 09-282693 (1997-10-01), None
patent: 2000-011414 (2000-01-01), None
patent: 2000-260042 (2000-09-01), None

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