Optical recording and reproducing apparatus with servo compensation for detected defects and external shocks
US5867461A · kind A · utility
7Cited by
4References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 27, 1993 |
| Grant date | Feb 2, 1999 |
| Priority date | — |
| Expiry date | Jul 27, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0948
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical recording and/or playback system having tracking and focus regulating circuits. Mechanical shock and/or disc defects are detected and the adverse effects on the tracking and focus regulating circuits are reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.