Tracking control device
US6181506A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1995 |
| Grant date | Jan 30, 2001 |
| Priority date | — |
| Expiry date | Jul 19, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/588
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A novel tracking control device and method is disclosed. In the tracking control device and method, digital information is reproduced from a recording medium by a reproducing head, an error contained in the reproduced digital information is detected, and the relative position between the recording medium and the reproducing head is controlled by using the detection result. In addition, an arrangement capable of realizing a high tracking capability with respect to the non-linearity of a track is also disclosed. The arrangement forms a plurality of tracking error signals indicative of positional deviations between the reproducing head and a plurality of divided areas into which each track formed on the recording medium is divided, and selectively uses the plurality of tracking error signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.