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:
Dec. 18, 2007
Filed:
Nov. 05, 2003
Applicant:
Tomoyuki Miyake, Nara, JP;
Inventor:
Tomoyuki Miyake, Nara, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A tilt sensoris provided on a CD optical pickup, and a sub-chassisand a height adjustment mechanismand the like are provided for adjusting the tilt of a DVD optical pickup. A recording or reproduction position is read in by the DVD optical pickupwhile moving the CD optical pickupand the DVD optical pickupalong guide shaftsandrespectively, the amount of tilt of the optical diskat this position is detected by the tilt sensorof the CD optical pickup, the tilt of the laser light axis from the DVD optical pickupis adjusted in accordance with the amount of tilt that is detected, and the amount of tilt of the optical diskis corrected.