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. 15, 2001
Filed:
Dec. 17, 1998
Applicant:
Inventors:
Assignee:
Pioneer Electronic Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 2/303 ;
U.S. Cl.
CPC ...
G11B 2/303 ;
Abstract
A disc cartridge includes an upper lid and a lower lid for housing an optical disc or a magneto-optical disc between them. The disc cartridge also includes amechanism for making a gap between the upper lid and the lower lid varable. The mechanism increases a clearance between the surface of the disc housed in the disc cartridge and the inner surface of the upper and lower lids when the disc cartridge is inserted in an information recording and reproducing device. The mechanism may also increase a clearance between the outer rim of the disc and the inner wall of the disc cartridge when the disc cartridge is inserted in an information recording and reproducing device.