Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Reexamination Certificate
2005-03-22
2009-02-10
Huber, Paul (Department: 2627)
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
C369S053120
Reexamination Certificate
active
07489603
ABSTRACT:
An apparatus including a first engaging portion for holding an optical pickup, a second engaging portion to be engaged with the first engaging portion, a transfer portion for driving the second engaging portion to transfer the first engaging portion in a radial direction, a calculating portion for calculating a backlash value between the first and second engaging portions in a transfer direction of the first engaging portion, and a driving control unit. The driving control unit controls a driving portion to transfer the optical pickup based on a calculated backlash value.
REFERENCES:
patent: 6434096 (2002-08-01), Akagi et al.
patent: 2002/0039329 (2002-04-01), Yonezawa
patent: 2005/0157610 (2005-07-01), Osada et al.
patent: 7-93767 (1995-04-01), None
patent: 2001-210029 (2001-08-01), None
Sugai Ichiro
Takahashi Kazuo
Drinker Biddle & Reath LLP
Huber Paul
Pioneer Corporation
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