Apparatus for controlling the write beam in an optical data recording system
US4562567A · kind A · utility
19Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1982 |
| Grant date | Dec 31, 1985 |
| Priority date | — |
| Expiry date | Nov 12, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B27/36
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Apparatus for recording data by means of a beam of radiation on a recording medium which upon exposure to the beam undergoes optically detectable changes in the form of pits, which apparatus includes means for reducing the beam intensity as a result of pit initiation thereby forming more accurate pits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.