Tracking servo apparatus of disk player
US5025434A · kind A · utility
5Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 1989 |
| Grant date | Jun 18, 1991 |
| Priority date | — |
| Expiry date | Jun 8, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0901
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There is provided a tracking servo apparatus of a disk player comprising: off-track detecting means for detecting that an information reading spot of a pickup does not exist on an information recording track of a disk and for generating an off-track signal; and level control means for increasing an amplitude of a tracking error signal when the off-track signal exists, whereby the stable tracking servo operation can be executed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.