Patent ID: 7065017
Filing Date: 2006-06-20
Classification: G11B

Abstract:
1. An optical disk apparatus comprising: wobble-signal generating means for generating a wobble signal having a signal level that varies in accordance with the meander of a groove in an optical disk by processing a result of received return-light obtained by irradiating the optical disk with a laser beam; playback-signal generating means for generating a playback signal having a signal level that varies in accordance with a series of pits formed in the optical disk by processing the result of the received return-light; writing-clock-signal generating means for generating a writing clock signal that serves as a reference for generating the series of pits, with reference to the wobble signal; and playback-clock-signal generating means for generating a playback clock signal that serves as a reference for playing back the series of pits, by switching an operational reference between the writing clock signal and the playback signal.