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
07317669
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.
REFERENCES:
patent: 5615191 (1997-03-01), Takeda et al.
patent: 5933397 (1999-08-01), Yamashita et al.
patent: 6118739 (2000-09-01), Kishinami et al.
patent: 6498772 (2002-12-01), Fujiune et al.
patent: 7012778 (2006-03-01), Shigematsu
patent: 2004/0213108 (2004-10-01), Fujiune
patent: 60185253 (1985-09-01), None
patent: 07-182676 (1995-07-01), None
patent: 2003-30877 (2003-01-01), None
patent: 2003-7197 (2003-01-01), None
Samsung Electornics Co., Ltd.
Staas & Halsey , LLP
Tran Thang V.
LandOfFree
Method and apparatus for compensating for disc eccentricity... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for compensating for disc eccentricity..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for compensating for disc eccentricity... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2780000