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. 10, 2013
Filed:
Dec. 15, 2009
Applicants:
Chien MO Lai, Taipei, TW;
Tsu Nan Lee, Taipei, TW;
Sheau Lin LI, Taipei, TW;
Inventors:
Assignee:
Kye Systems Corp., Taipei, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 3/033 (2013.01);
U.S. Cl.
CPC ...
Abstract
A specific wavelength selecting method for an optical input device includes the following steps. A light source for respectively emitting at least two light rays in different wavelength regions is first enabled. Next, the two light rays are projected to a working surface to obtain at least two corresponding reflected light rays. Then, optical signals of the reflected light rays are detected and compared to obtain a preferred optical result. Finally, a light ray in the most suitable wavelength region is selected and enabled according to the preferred optical result.