Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Reexamination Certificate
2005-12-02
2009-02-03
Edun, Muhammad N. (Department: 2627)
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
C369S044140, C369S053190
Reexamination Certificate
active
07486597
ABSTRACT:
A pick-up angle adjustment apparatus in provided for adjusting an angle of an optical pick-up mounted in an optical disk apparatus. In the pick-up angle adjustment apparatus, a first guide shaft has a first length between a pair of ends thereof for guiding and supporting the optical pick-up. A second guide shaft has a second length between a pair of ends thereof for guiding and supporting the optical pick-up. A first adjustment member is operable for vertically moving one end of the first guide shaft so as to adjust the angle of the optical pick-up. The first adjustment member is capable of moving the one end of the first guide shaft by a first distance when the first adjustment member is operated by a given operation amount. A second adjustment member is operable for vertically moving one end of the second guide shaft so as to adjust the angle of the optical pick-up. The second adjustment member is capable of moving the one end of the second guide shaft by a second distance when the second adjustment member is operated by the same operation amount as applied to the first adjustment member. A distance ratio of the first distance and the second distance is set equal to a length ratio of the first length and the second length.
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Japanese Office Action dated Feb. 19, 2008 with English translation of relevant portions (Four (4) pages).
European Search Report dated Jun. 2, 2006 (Five (5) pages).
Crowell & Moring LLP
Edun Muhammad N.
Yamaha Corporation
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