Patent ID: 6980495
Filing Date: 2005-12-27
Classification: G11B

Abstract:
1. An optical recording apparatus comprising: a rotating section that is provided for rotating an optical disk which has formed thereon a guide groove to define a spiral track having a plurality of rounds; an optical pickup that has a light source for generating an optical beam and a diffractive grating for diffracting the optical beam to form a main beam and a pair of sub beams opposite with each other relative to the main beam; a servo section that operates the optical pickup to enable the main beam to trace the spiral track with the accompanying pair of the sub beams along opposite sides of the spiral track based on a tracking error signal derived from return lights of the sub beams reflected back from the optical disk; a recording section that modulates the main beam for recording of information onto the spiral track while the optical disk is rotated and the power of main beam is increased to widely form pits to the extent that the pits recorded on previous round overlap partially with the sub beam positioned on the radially inner side so as to cause an undesirable track jumping; and a control section that controls recording of information each cycle the optical disk is rotated such that the recording of information is enabled to record one round of the spiral track and enabled to blank another round of the spiral track so as to alternate recorded rounds and blanked rounds.