Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Reexamination Certificate
2008-01-08
2008-01-08
Tran, Thang V. (Department: 2627)
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
C369S044320, C369S044350, C369S053140
Reexamination Certificate
active
10894360
ABSTRACT:
A method and apparatus compensating for disc eccentricity includes extracting eccentricity data from a tracking error signal having one period, generated by a tracking servo, detecting parameter values of an eccentricity component extracted during the extraction of the eccentricity data and transforming a reference sine wave based on the detected parameter values of the eccentricity component. The eccentricity data is replaced with the transformed reference sine wave and the replaced eccentricity data is added to the tracking error signal to compensate for the disc eccentricity.
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Samsung Electornics Co., Ltd.
Tran Thang V.
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