The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 2003
Filed:
Apr. 18, 2001
Takao Shimamura, Kawagoe, JP;
Takashi Sasaki, Kawagoe, JP;
Kenichi Takahashi, Kawagoe, JP;
Yoshihiro Hashizuka, Kawagoe, JP;
Koichi Kikuchi, Kawagoe, JP;
Shinya Honjou, Kawagoe, JP;
Takashi Suzuki, Kawagoe, JP;
Hideaki Yoshimura, Kawagoe, JP;
Pioneer Corporation, Tokyo, JP;
Abstract
A servo-control apparatus is provided for use with an optical disc player for reading and/or recording information. The apparatus includes an adjustment section for performing coarse and fine adjustment of a servo loop gain in accordance with a storage medium loaded in the player; a memory for storing a gain adjustment value; a discriminator for determining, upon one of reading and recording information, that the storage medium has already been subjected to the coarse and fine adjustment; and a controller. The controller allows the adjustment section to perform the fine adjustment of the servo loop gain in accordance with the stored adjustment value when it is determined that the storage medium has already been subjected to the coarse and fine adjustment.