Recording power adjustment for optical storage apparatus
US6067284A · kind A · utility
26Cited by
0References
50Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1997 |
| Grant date | May 23, 2000 |
| Priority date | — |
| Expiry date | Oct 30, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/182
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
After a first test pattern and a second test pattern were sequentially test written to at least two adjacent tracks by a light emission driving of a laser diode, the adjacent track in which the first test pattern was first test written is reproduced, thereby checking the presence or absence of a data error. When there is the data error, the test writing is repeated while changing a light emitting power until the data error is eliminated. When there is no data error, the light emitting power used in the test writing is set to a recording power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.