Patent Number: 7,272,088

Title: Information recording apparatus and optimum recording laser power detecting method

Abstract: An information recording apparatus records the record data onto an information recording medium, which is provided with wobbled tracks and on which pre-format address information is recorded. The information recording apparatus is provided with: an optical pickup; a detector for detecting a push-pull signal on the basis of an output of the optical pickup; a timing generator for generating a timing signal by detecting the pre-format address information and by detecting a slot unit smaller than a data management unit of the pre-format address information on the basis of a cycle of the push-pull signal; and a system controller for detecting an optimum recording laser power by recording or reproducing a test signal on the tracks while changing a recording laser power on the basis of the timing signal.

Inventors: Yoshida; Masayoshi (Tokorozawa, JP), Koda; Takeshi (Tokorozawa, JP), Katata; Keiji (Tokorozawa, JP)

Assignee: Pioneer Corporation

International Classification: G11B 7/00 (20060101)

Expiration Date: 2019-09-18 0:00:00