Patent ID: 7986596
Filing Date: 2011-07-26
Classification: G11B

Abstract:
1. An optical recording/reproducing system for reading, based on a predetermined reproduction clock, information associated with a recording track of a recording medium by irradiating frequency light, the frequency light being scanned at a predetermined scan velocity, the optical recording/reproducing system comprising: a modulating unit that modulates light by a drive signal on which a frequency signal is superimposed to thereby output the frequency light; a synchronizing unit that synchronizes a frequency of the frequency signal with a frequency of the reproduction clock according to the scan velocity; and a first determining unit that determines whether the scan velocity is equal to or greater than a threshold velocity, the threshold velocity being set based on a minimum run length of a recorded signal included in the information and a modulation period of the frequency light, wherein the synchronizing unit includes a synchronizing module that synchronizes the frequency of the frequency signal with the frequency of the reproduction clock when it is determined that the scan velocity is equal to or greater than the threshold velocity by the first determining unit.