Patent Number: 6,480,448

Title: Disc player

Abstract: In a disc player, a CAL pattern is recorded in a disc-like optical recording medium during a recording stand-by time period, which is yielded by a difference between a data rate in inputting information to a disc player 50 and a recording rate in recording information into the optical recording medium. The CAL pattern is reproduced from the optical recording medium, the reproduced pattern is evaluated, and an irradiation intensity of a laser beam is optimized for recording information in the optical recording medium, by a laser-output controller 30.

Inventors: Kawano; Eisaku (Saitama, JP), Shimoda; Yoshitaka (Saitama, JP), Ishii; Hidehiro (Saitama, JP), Muramatsu; Eiji (Saitama, JP), Kato; Masahiro (Saitama, JP), Horikawa; Kunihiko (Saitama, JP)

Assignee: Pioneer Corporation

International Classification: G11B 7/00 (20060101); G11B 7/0045 (20060101); G11B 7/125 (20060101); G11B 007/00 ()

Expiration Date: 11/12/2019