Optical disk apparatus for recording information using a light intensity modulation method with a partial response detector
US5790482A · kind A · utility
32Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 1995 |
| Grant date | Aug 4, 1998 |
| Priority date | — |
| Expiry date | Jul 18, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2020/1259
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical disk apparatus is capable of recording, reproduction and erasure by a laser beam. The user data is recorded in a RAM area on an optical disk by a recording device including a modulation encoder and a recording waveform generator. At the time of reproduction, the data in the RAM/ROM area is detected by a reproduction device to thereby demodulate the user data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.