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US 2003/0142606 A1Published application
Information recording apparatus and method
AssigneeKabushiki Kaisha Toshiba
InventorsAkihito Ogawa, Maho Kuwahara, Kazuo Watabe
Life of this patent
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Abstract
An information recording apparatus varies an output level of laser light according to the length of a segment in which information is to be erased when information recorded on an information recording medium is erased by use of laser light of a preset output level.
Claims15
An information recording apparatus comprising:
- a circuit which varies an output level of laser light according to length of a segment in which information is to be erased when information recorded on an information recording medium is erased by use of laser light of a preset output level.
An information recording apparatus comprising:
- a recording section which is configured to record and erase information with respect to an information recording medium by varying an output level of laser light, and
- a control section which is configured to variably change an output level used to erase information with respect to said recording section according to length of a segment in which information is to be erased.
An information recording method comprising:
- recording and erasing information with respect to an information recording medium by changing output levels of laser light, and
- varying an output level used to erase information according to length of a segment in which information is to be erased.
Dependencies are inferred from the claim text.