Disk recording apparatus for re-establishing a recording mode at a desired address
US5012461A · kind A · utility
21Cited by
8References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1988 |
| Grant date | Apr 30, 1991 |
| Priority date | — |
| Expiry date | Oct 21, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0946
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk recording apparatus for recording data such as information concerning a musical performance on a recording disk (1) to which absolute addresses have been imparted in advance. Vibration during the recording operation and unexpected track jumping due to defects in the recording disk are detected relying upon the discontinuity of absolute addresses reproduced from the recording disk (1). In case track jumping has taken place, the laser power of the optical head (12) is dropped to the reproduction level and the track jump control is actuated to access a desired track. The recording operation is then resumed for the track.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.