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. 15, 2016
Filed:
Jul. 20, 2012
Feng-cheng Yang, Hsin-Chu, TW;
Ching-lin Chung, Hsin-Chu, TW;
Hsin-chia Chen, Hsin-Chu, TW;
Hui-hsuan Chen, Hsin-Chu, TW;
Feng-Cheng Yang, Hsin-Chu, TW;
Ching-Lin Chung, Hsin-Chu, TW;
Hsin-Chia Chen, Hsin-Chu, TW;
Hui-Hsuan Chen, Hsin-Chu, TW;
PIXART IMAGING INC., Hsin-Chu, TW;
Abstract
An input device comprising an optical module having a light guide plate, a light source, a scattering layer and a sensor is provided. The light guide plate has a top surface, a bottom surface, and a side. The light source emits a light to the side. The light travels within the light guide plate. The scattering layer changes a path of parts of the light on the bottom surface so that the light is projected out of the top surface to form a penetrating light. When an object approaches or touches the top surface of the light guide plate, at least a part of the penetrating light is reflected by the object to form a reflected light received by the sensor. According to the reflected light, the input device generates a position signal indicating at least one relative position of the object with respect to the top surface.