Patent ID: 8102750
Filing Date: 2012-01-24
Classification: G11B

Abstract:
1. An optical recording/reproducing apparatus to reproduce information on an information recording medium having a recording region adapted to super resolution reproduction, the optical recording/reproducing apparatus comprising: a spindle motor for retaining and rotationally driving the information recording medium; an optical pickup for irradiating the information recording medium with a laser beam, receiving reproduction light, and outputting a reproduction signal; and a control section for receiving the reproduction signal from the optical pickup; wherein, when the information on the information recording medium is to be reproduced, the optical recording/reproducing apparatus optimizes the reproduction power of the laser beam by repeatedly irradiating the recording region adapted to super resolution reproduction with the laser beam at a predetermined power, judging whether the resulting reproduction signal output satisfies a predetermined threshold value, and adjusting the power of the laser beam in accordance with the judgment result, and wherein the control section controls the reproduction power of the laser beam for executing a tracking with a super resolution effect, and in accordance with the amount of eccentricity of the information recording medium.