Optical information recording apparatus
US4241240A · kind A · utility
3Cited by
5References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1978 |
| Grant date | Dec 23, 1980 |
| Priority date | — |
| Expiry date | Oct 26, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B27/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical information recording and reproducing apparatus is disclosed in which a predetermined signal is recorded on a track of a rotating recording medium by a recording light beam and the recorded information is reproduced by a reproducing light beam. The information recorded on the last record track is reproduced by the recording beam and the reproducing beam and radiating position of the recording beam on the recording medium is displaced by a predetermined distance from the last record track.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.