Information recording method, information recording apparatus, information recording medium, and medium estimating method
US8958275B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | May 10, 2013 |
| Grant date | Feb 17, 2015 |
| Priority date | — |
| Expiry date | May 10, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0062
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A recording waveform is adjusted based on the fluctuation amount of the mark edge position, focused on that fluctuation of a mark edge position is increased in aged deterioration of a recording signal. Specifically, the recording waveform is adjusted such that a fluctuation amount becomes minimum or a threshold value or less. Then, information is recorded on the optical disc using the recording waveform. Further, provided is a recording medium or an information recording apparatus which stores parameters of the recording waveform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.