06970403 is referenced by 12 patents and cites 58 patents.

A calibration for a tracking error signal offset in a tracking servo system of an optical disk drive is presented. In some embodiments, the tracking error signal offset is adjusted for best servo function by, for example, adjusting the center of a tracking error signal when the tracking servo system is open to zero. In some embodiments, the tracking error signal offset is adjusted for best read function by, for example, adjusting the tracking error signal offset until the data jitter is minimized. Data jitter can be determined by reading data from the optical media and measuring the data error rate.

Title
Calibration of tracking error signal offset in a tracking servo system
Application Number
9/950377
Publication Number
6970403 (B2)
Application Date
September 10, 2001
Publication Date
November 29, 2005
Inventor
Hans B Wach
Longmont
CO, US
Charles R Watt
Longmont
CO, US
Ron J Kadlec
Longmont
CO, US
Agent
MacPherson Kwok Chen & Heid
Jonathan W Hallman
Assignee
DPHI Acquisition
CO, US
IPC
G11B 007/00
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