Tracking servo system adapted to operate with variable track pitch
US5065383A · kind A · utility
13Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1989 |
| Grant date | Nov 12, 1991 |
| Priority date | — |
| Expiry date | Apr 6, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S358/907
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a tracking servo system for use in a disc player having a pickup, for playing an information recording disc having a recording track, the peak value of the tracking error signal obtained during a track jump operation is detected, and at least one of the pulse width and the pulse height of the deceleration pulse for the jump operation is varied in response to the detected peak value. With this feature, an appropriate control amount for the track jump operation corresponding to the track pitch is obtained even if there is a change in the track pitch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.