Title:
OPTICAL DISK REPRODUCING PROCESSING METHOD
Document Type and Number:
Japanese Patent JP2000137921
Kind Code:
A
Abstract:
To enable an optical disk to be properly reproduced even if ruggedness exists larger than a pit on the data pit surface of the optical disk.
During the reproduction of a rugged part larger than a pit, a prescribed value F or the minimum added value G is added to the tracking offset adjustment value before the completion of the adjustment, with the pickup moved in the direction suppressing the return phenomenon. During the reproduction of the rugged part larger than the pit, when the tracking offset adjustment is complete, the minimum subtraction value 1 is subtracted from a tracking gain adjustment value, with the sensitivity of a tracking error signal reduced so that no return phenomenon is generated.
Inventors:
FUJIMORI HIROAKI
TOYODA SATOSHI
TOYODA SATOSHI
Application Number:
JP31021898A
Publication Date:
May 16, 2000
Filing Date:
October 30, 1998
Export Citation:
Assignee:
TOSHIBA AVE KK
TOSHIBA LSI SYSTEM SUPPORT KK
TOSHIBA CORP
TOSHIBA LSI SYSTEM SUPPORT KK
TOSHIBA CORP
International Classes:
G11B7/09; (IPC1-7): G11B7/09
Attorney, Agent or Firm:
Norio Ogo (1 outside)