Information recording device

Application Number: 00108788
Application Date: 2000.06.02
Publication Number: 1276601
Publication Date: 2000.12.13
Priority Information: 1999/6/2 JP 154652/1999
International: G11B11/105;G11B7/004
Applicant(s) Name: Hitachi, Ltd.
Inventor(s) Name: Saga Hideki
Patent Agency Code: 11038
Patent Agent: yu jing
Abstract An information recording apparatus includes an energy generation device for generating recording energy; a position control device for controlling a position of irradiation on the recording medium with an output of the energy generation device; a drive device for driving the energy generation device; a switching device for switching information based on user data and test information to supply the two kinds of information selectively to the drive device; a reading device for reading the marks recorded on the recording medium; an evaluation device for evaluating a reproduced signal obtained by the reading device; and a recording condition control device for controlling a recording condition on the basis of an evaluation result obtained by the evaluation device.