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. 19, 2016
Filed:
Jun. 23, 2014
Chien-chung Liao, Hsin-Chu, TW;
Yao-shun Lin, Hsin-Chu, TW;
Chien-Chung Liao, Hsin-Chu, TW;
Yao-Shun Lin, Hsin-Chu, TW;
Coretronic Corporation, Hsin-Chu, TW;
Abstract
A touch module, a projection system, and a touch method of the touch module are provided. The touch module includes a laser scanner device, a photodiode, an image capturing device, and a processing unit. The laser scanner device sequentially provides a touch region with a laser beam at a plurality of angles in a first period. The photodiode is configured for receiving a reflection beam from a touch point in the touch region. The image capturing device captures an image having another reflection beam from the touch point in a second period. The processing unit determines a first angle corresponding to the touch point according to the reflection beam from the touch point received by the photodiode, determines a second angle corresponding to another reflection beam captured by the image capturing device, and calculates location information of the touch point according to the first angle and the corresponding second angle.