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. 02, 2008
Filed:
Mar. 06, 2006
Sojiro Kirihara, Kawasaki, JP;
Yoshiyuki Tanaka, Kawasaki, JP;
Shinya Tsubota, Mito, JP;
Hitachi-LG Data Storage, Inc., Tokyo, JP;
Abstract
An optical disc apparatus includes position restricting component for restricting the position of a unit mechanism portion in a disc plane direction when the unit mechanism portion is in a raised state. The position restricting component includes a first portion that restricts the position of a base of the unit mechanism portion when the base is at a height position for write or read of information to or from an optical disc and a second portion that cancels the position restriction on the base of the unit mechanism portion in the disc plane direction or makes the position restriction easier than in the first portion when the base is at a height position corresponding to a chucked portion of the optical disc onto the turntable. At the height position where the optical disc is chucked the position restricting component makes the turntable displaceable in the disc plane direction so that the axis of the turntable becomes nearly coincident with the center of a center hole formed in the optical disc.