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. 30, 2006
Filed:
May. 16, 2003
Byung-sam Son, Gyeonggi-do, KR;
Byung-sam Son, Gyeonggi-do, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A loading motor control device of an optical device, which controls a loading motor to move a tray for loading or unloading a disc, and to raise and lower a pickup deck. The loading motor control device includes an optical sensor that has a light-emitting portion and a light-receiving portion, which are separated by a predetermined space and are face with each other; and a shutter that is provided on a sliding cam to move back and forth in the predetermined space, and that has a plurality of opening holes, through which a light beam emitted from the light-emitting portion passes, wherein the loading motor is controlled in multiple modes corresponding to the respective positions of the plurality of opening holes. The loading motor can be controlled adequately and correctly in multiple modes and with a simple structure.