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:
Jun. 09, 2009
Filed:
Feb. 17, 2006
Applicants:
Siang Leong Foo, Penang, MY;
Boon Keat Tan, Penang, MY;
Yee Loong Chin, Perak, MY;
Inventors:
Assignee:
Avago Technologies ECBU IP (Singapore) Pte. Ltd., Singapore, SG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06M 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A directional input device with a light directing shaft that avoids wear and tear caused by physical contact between a shaft and a sensor surface. A directional input device according to the present teachings includes a light emitter and a shaft having a surface that reflects light from the light emitter. A directional input device according to the present teachings further includes a set of light sensing elements that are positioned to detect a position of the shaft by sensing light reflected from the shaft.