Single-head, direct overwrite magneto-optic system and method
US4882718A · kind A · utility
22Cited by
6References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 10, 1988 |
| Grant date | Nov 21, 1989 |
| Priority date | — |
| Expiry date | Feb 10, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2525
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magneto-optic information storage system is disclosed suitable for compensation point recording in the absence of an external bias field. The pulse of light used to erase imparts less energy than the pulse used to write. Also disclosed is a method for directly overwriting data recorded on a magneto-optic medium by applying lower energy erasing pulses of light and higher energy writing pulses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.