Patent ID: 7230900
Filing Date: 2007-06-12
Classification: G11B

Abstract:
1. An optical disk apparatus for forming an image on an optical disk according to dot data which corresponds to intensity and period of dots of the image, the optical disk apparatus comprising: a framing unit which makes a frame data by grouping a plurality of unit data, wherein when the dot data are applied to the optical disk apparatus, the dot data are treated to be the plurality of unit data; a pit forming unit which sequentially forms pits defined by a bit train signal of the frame data; a discrimination unit which determines whether a section in the frame data corresponding to the dot data is a predetermined value; and a gate unit which, in case the discrimination result by the discrimination unit is affirmative, supplies the bit train signal to the pit forming unit in a certain period of the dot period and, in case the discrimination result by the discrimination unit is negative, interrupts supply of the bit train signal to the pit forming unit.