Invention Grant
US07646687B2 Method for determining recording laser power for super-resolution optical recording medium and apparatus for recording information on super-resolution optical recording medium 失效
用于确定超分辨率光学记录介质的记录激光功率的方法和用于在超分辨率光学记录介质上记录信息的装置

Method for determining recording laser power for super-resolution optical recording medium and apparatus for recording information on super-resolution optical recording medium
Abstract:
A method for determining recording laser power on a super-resolution optical recording medium, on which information is recorded on a super-resolution optical recording medium by irradiating a laser beam modulated into a recording pulse train according to recording data to thereby form a recording mark train including recording marks and spaces smaller than the resolution limit of a reproduction optical system and recording marks and spaces equal to or larger than the resolution limit, is provided. At the time of recording, the method determines a minimum value and a maximum value of recordable laser powers determined by test-writing before recording, and determines a maximum value of a recordable range of laser power by adding to the minimum value one-third of a difference between the maximum value of the recordable laser powers and the minimum value. The method determines an optimal range of recording laser power from the minimum value of recordable laser powers to the maximum value of the recordable range.
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