Calibration of tracking error signal gain in a tracking servo system
US6906985B2 · kind B2 · utility
11Cited by
77References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 10, 2001 |
| Grant date | Jun 14, 2005 |
| Priority date | — |
| Expiry date | Jun 27, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0941
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A calibration for a tracking error signal gain in a tracking servo system of an optical disk drive is presented. The calibration determines the peak-to-peak tracking error signal when the tracking servo system is open, calculates a gain factor in response to the peak-to-peak tracking error signal, and calculates a new tracking error signal gain based on the tracking error signal gain and the gain factor. New tracking error signal gains are calculated until the gain factor is approximately one.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.