Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Reexamination Certificate
2003-06-05
2008-12-23
Dinh, Tan X (Department: 2627)
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
C369S044290, C369S044310, C369S044350, C369S044360, C369S044320, C369S053280, C369S053350, C369S053230
Reexamination Certificate
active
07468935
ABSTRACT:
The invention relates to a method for optimized tracking of an optical scanner along a track of an optical recording medium, the track having information markings arranged in dense succession, and also having fundamental changes in properties in significantly lower density. The method has the following steps: formation of a track error signal, detection of the occurrence of fundamental changes in properties of the track, formation of an offset value from the comparison of the value of the track error signal that occurs shortly before and shortly after the fundamental change in properties, formation of the track error signal, taking account of the offset value and repetition of the aforementioned steps.
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Büchler Christian
Dietrich Christoph
Dinh Tan X
Laks Joseph J.
Lin Reitseng
Nguyen Linh T
Shedd Robert D.
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