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:
Sep. 14, 1999
Filed:
Sep. 10, 1998
Applicant:
Inventors:
Hiroshi Yokota, Tokorozawa, JP;
Ryuichi Naito, Tokorozawa, JP;
Hiroyuki Hirano, Tokorozawa, JP;
Katsumi Ishii, Tokorozawa, JP;
Shinichi Naohara, Tokorozawa, JP;
Yoshifumi Tsukuda, Tokorozawa, JP;
Kanya Matsumoto, Tokyo-to, JP;
Assignee:
Pioneer Electronic Corporation, Tokyo-to, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369219 ; 369244 ;
Abstract
A disc player includes: a plurality of pickup devices for reading information from a disc and a plurality of guide devices arranged radiately from a center of the disc, each for radially transferring one of the pickup devices. The guide devices are arranged so that each alternate pickup device is raised or lowered toward the inner circumferential portion of the disc.