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:
Oct. 17, 2000
Filed:
Jul. 10, 1998
Takeshi Sato, Kawagoe, JP;
Takashi Suzuki, Kawagoe, JP;
Hiroyuki Abe, Kawagoe, JP;
Hideaki Watarihana, Kawagoe, JP;
Alex Bradshaw, Kawagoe, JP;
Motoi Kimura, Kawagoe, JP;
Kenichi Takahashi, Kawagoe, JP;
Pioneer Electronic Corporation, Tokyo, JP;
Abstract
A carriage controller for a multi-layer disc which is capable of performing a stable carriage control during reproduction of a multi-layer disc of the opposite recording scheme. A tracking error signal is relayed by an equalizer, and a carriage motor is driven in accordance with an output signal of the equalizer. An information reading direction on a layer of a disc on which a pickup reads information is detected, and an equalizer characteristic is set in the equalizer in accordance with the detection result.