Optical information write/read device and method for writing data
US5469418A · kind A · utility
15Cited by
6References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 1993 |
| Grant date | Nov 21, 1995 |
| Priority date | — |
| Expiry date | Jul 15, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0045
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A write/read device includes two optical heads for writing data on an optical disk. The two heads are moved simultaneously after data is written in a track, the written data is read and checked for writing errors. This write verify is performed by the two optical heads in parallel, and data can be written on an optical disk at a fast rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.