Position control apparatus and optical apparatus

Details Position control apparatus and optical apparatus Position control apparatus and optical apparatus

2006-06-08

2011-12-06

Nguyen, Hoa T (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C348S347000, C356S482000

Reexamination Certificate

active

08072851

ABSTRACT:
A position control apparatus (optical apparatus) is disclosed which is capable of preventing disadvantages caused by the absence of a dead band while achieving a required accuracy of positional control. The position control apparatus comprises a controller which controls the drive of an object (optical member) so that the position of the object, which detected by a position detector, moves closer to a target position. The controller has a control function which does not drive the object in a case where the difference between the position detected by the position detector and the target position is within a predetermined range, and changes the predetermined range according to control modes relating to the drive of the object.

REFERENCES:
patent: 6229568 (2001-05-01), Kawaguchi et al.
patent: 6577343 (2003-06-01), Ohkawara
patent: 6683652 (2004-01-01), Ohkawara et al.
patent: 6924941 (2005-08-01), Okada et al.
patent: 7493033 (2009-02-01), Triteyaprasert et al.
patent: 62-56911 (1987-03-01), None
patent: 62-83711 (1987-04-01), None
patent: 7-281084 (1995-10-01), None
patent: 1-162279 (1998-06-01), None
patent: 11-133295 (1999-05-01), None
patent: 2003-107326 (2003-04-01), None
patent: 2003-167183 (2003-06-01), None
patent: 2004-325517 (2004-11-01), None
Notice of Reasons for Rejection issued in corresponding Japanese Patent Application No. 2005-170888 dated Aug. 10, 2010. English Translation provided.

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