Method of recording information on magneto-optic information storage medium
US4670865A · kind A · utility
10Cited by
2References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 14, 1983 |
| Grant date | Jun 2, 1987 |
| Priority date | — |
| Expiry date | Apr 14, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B11/10595
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of recording information on a magneto-optic information storage medium having a normal magnetization film, comprising modulating a recording beam of light with the pieces of information to be recorded on the information storage medium; irradiating the normal magnetization film with the modulated beam of light in the presence of a bias magnetic field; detecting the sensitivity of recording of the information storage medium throughout the recording area of the information storage medium; and controlling the bias magnetic field to vary with the detected sensitivity of recording.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.