Optical information storage unit and laser power control method
AssigneeFujitsu Limited
InventorMASAOKI OHTSUKA
Life of this patent
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Abstract
An optical information storage unit optically stores information on a disk shaped recording medium by irradiating a laser beam on the recording medium. The optical information storage unit is provided with a section which controls a laser power of the laser beam irradiated on the recording medium depending on a rotary angle of the recording medium.
Claims20
An optical information storage unit which optically stores information on a disk shaped recording medium by irradiating a laser beam on the recording medium by a laser beam irradiating section, comprising:
- a power control section controlling a laser power of the laser beam irradiated on the recording medium by the laser beam irradiating section depending on a rotary angle of the recording medium.
A laser power control method for controlling a laser power of a laser beam irradiated on a recording medium, comprising the steps of:
- (a) controlling the laser power of the laser beam irradiated on the recording medium depending on a rotary angle of the recording medium.
Dependencies are inferred from the claim text.