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US 6,473,378 B2Granted
Optical recording apparatus
AssigneePioneer Corporation
InventorsMitsuru Sato, Takanori Maeda
Life of this patent
Estimating the term…
Abstract
An optical recording apparatus for writing information on an optical recording medium in which a recording surface is covered with a transparent layer. The information to be written on the optical recording medium is converted into a pulse signal, and spherical aberration occurring due to an error of a thickness of the transparent layer is detected, the pulse signal being controlled in accordance with the detected spherical aberration.
Claims6
An apparatus for recording information on an optical recording medium in which a recording surface is covered with a transparent layer, comprising:
- means for converting recording information to be written on the optical recording medium into a pulse signal,
- detecting means for detecting spherical aberration occurring due to an error of a thickness of the transparent layer, and
- control means for controlling said pulse signal on the basis of the detected spherical aberration by said detecting means.
Dependencies are inferred from the claim text.