Patent Number: 6,310,845

Title: Optical disk device

Abstract: An optical disk device has a unit for counting data read errors from an optical disk and a unit for reducing a playback speed of an optical disk. When a number of data read errors occurring in a predetermined period of time exceeds a predetermined value the playback speed reducing unit reduces the playback speed of the optical disk. As a result, repetition of error detection and consequent reduction in playback speed with each data read command when reading defective sectors of an optical disk can be prevented and the time required for error detection and speed reduction thereby eliminated, greatly improving overall average playback speed.

Inventors: Kanenaga; Junichi (Tanashi, JP), Onda; Hiroyuki (Higashikurume, JP)

Assignee: Teac Corporation

International Classification: G11B 20/18 (20060101); G11B 20/10 (20060101); G11B 19/26 (20060101); G11B 19/06 (20060101); G11B 7/0037 (20060101); G11B 7/00 (20060101); G11B 007/00 ()

Expiration Date: 10/30/2018