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:
Apr. 02, 2002
Filed:
Dec. 07, 1999
Applicant:
Inventor:
Katsuhiro Shiba, Tokorozawa, JP;
Assignee:
Pioneer Corporation, Tokyo-to, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 1/704 ;
U.S. Cl.
CPC ...
G11B 1/704 ;
Abstract
A disc changer has at least one slot in which any one of different kinds of disc magazines can be stored. The disc changer includes a first device for identifying a type and an identification number of the disc magazine, a second device for detecting existence of a disc in the disc magazine, a third device for reading information recorded on the disc, which is stored in the magazine and a fourth device for storing a data table, which includes the information on the type and the identification number of the disc magazine and on the existence of the disc in the disc magazine.