Recording a mark with the rising and falling edges varied based on previously recorded control data
US6160784A · kind A · utility
48Cited by
6References
13Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 4, 1999 |
| Grant date | Dec 12, 2000 |
| Priority date | — |
| Expiry date | Aug 4, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/00736
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Optimum edge recording methods are previously held in a control data zone on the recording medium, and one of the methods is selected in a write mode by referring to the recorded methods. An information recording apparatus for forming a recording mark by converting an energy beam to a multi-pulsed train and irradiating the beam onto the recording medium includes that change-over can be realized between mark edge control based on control of both pulse edge positions and mark edge control based on control of one of the pulse edge positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.