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:
Apr. 21, 2015
Filed:
Oct. 19, 2012
Applicant:
Pixart Imaging Inc., Hsin-Chu, TW;
Inventors:
Tzung Min Su, Hsinchu, TW;
Chih Hsin Lin, Hsinchu, TW;
Assignee:
Pixart Imaging Inc., Hsin-chu, TW;
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/042 (2006.01);
U.S. Cl.
CPC ...
G06F 3/042 (2013.01);
Abstract
An optical touch system comprises a first imaging device configured to be directed toward a side surface of a target on a touch surface and a processing device. The first imaging device sequentially generates a first picture having an image of the target and a second picture having an image of the target. The computing device is configured to calculate a first dimension of the target using the first picture and a second dimension of the target using the second picture, and to determine whether the target is formed by one object or two objects by the first and second dimensions.