Patent ID: 8064302
Filing Date: 2011-11-22
Classification: G11B

Abstract:
1. An optical disk drawing apparatus comprising: a receiver that receives pixel data of an image to be drawn on an optical disk; an image data generator that generates image data by frame-formatting the received pixel data; a drive signal generator that generates a drive signal indicative of irradiation timing for any one of a write level, an erase level, and a read level based upon the generated image data; an image data identifying unit that identifies a first control signal indicative of a gradation degree for every pixel contained in that image data; a first time period specifying unit that specifies a time period for irradiating the laser light of the erase level as a first time period based upon the identified first control signal; a gate unit that supplies the drive signal indicative of the erase level within the specified first time period, and supplies the drive signal generated in a time period other than the specified first time period; and a laser irradiating unit that irradiates laser light at the timing indicative of the supplied drive signal, wherein