Patent ID: 7564757
Filing Date: 2009-07-21
Classification: G11B

Abstract:
1. An optical disk recording apparatus for forming marks by irradiating an optical disk with laser light to form a visible image on the optical disk together with recording data to the optical disk, the optical disk recording apparatus comprising: a strategy circuit which converts recording data into a pulse train signal for defining an irradiation timing of the laser light according to one of a plurality of conversion rules under each of which, marks of different width are formed, a changing unit which changes the conversion rule used for the strategy circuit from one of the conversion rules to another, when one of a portion for which complementation of the recording data is possible and a portion for which the discarding of a reproduction signal is negligible has arrived after a timing of forming a contour of an image has passed when forming the image on the optical disk; and an irradiation controlling unit which controls the irradiation of the laser light according to the pulse train signal based on the strategy circuit.