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:
Mar. 19, 2013
Filed:
Apr. 13, 2011
Hsu-hung Chen, Taoyuan, TW;
Chien-hung Lin, Taoyuan County, TW;
Bo-yi Wu, New Taipei, TW;
Quanta Computer Inc., Taoyuan Shien, TW;
Abstract
A touch device to sense and compute the coordinate of a touch object is provided. The touch device comprises a panel, a light-emitting element, an image sensor, a reflective strip and a processing unit. The panel has a sensing area surrounded by first to fourth boundaries where the first and the third boundaries define an x direction and the other two boundaries defines y direction. The light-emitting element and the image sensor are located on the first boundary with a specific distance therebetween. The reflective strip is located on the second to fourth boundaries. When the touch object touches the sensing area, a first and a second light path from the light-emitting element to the image sensor are blocked to form a real and a virtual image such that the processing unit computes the coordinate of the touch object according to the real and the virtual images. A touch method is disclosed herein as well.