Method of and apparatus for recording information
US7009923B2 · kind B2 · utility
3Cited by
12References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2003 |
| Grant date | Mar 7, 2006 |
| Priority date | — |
| Expiry date | Aug 21, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0062
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of recording information in which each recording mark is formed in a recording medium, by irradiating a pulse chain of an energy beam including a first pulse, a middle pulse chain, a last pulse and a negative pulse following the last pulse. The adjusting average power of the first middle, last and negative pulses to designated power levels of the first, middle, last and negative pulses recorded in a control data zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.