Patent ID: 9171564
Filing Date: 2015-10-27
Classification: G11B

Abstract:
1. An optical disc device configured to reproduce an optical disc, the optical disc device comprising: an optical pickup including a laser emission component configured to emit a laser beam, and a light receiver configured to receive returning light of the laser beam; a high-frequency production component configured to produce a high-frequency signal; a driver configured to produces a drive signal for driving the laser emission component by superposing the high-frequency signal produced by the high-frequency production component onto a specific drive signal; and a controller configured to control the high-frequency production component to adjust an amplitude of the high-frequency signal, the controller being further configured to calculate a number of settings based on an amplitude change amount of the high-frequency signal and a predetermined change amount of each amplitude adjustment of the high-frequency signal, the controller being further configured to control the high-frequency production component such that the amplitude of the high-frequency signal is adjusted based on the predetermined change amount and the number of settings.