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:
Aug. 01, 2017
Filed:
May. 29, 2012
Wen-chieh Geoffrey Lee, Taipei, TW;
Wen-Chieh Geoffrey Lee, Taipei, TW;
Other;
Abstract
A cursor-manipulating device comprising a light diffusing surface, for example a Lambertian surface, covering a cavity containing a light source and an image sensor, wherein the cursor-manipulating device is a touch pad like device. The image detector senses the touching of the outer surface of the cursor-manipulating device with a pointing device, for example a finger, in which the outer surface comprises a light diffusing surface that allows the image sensor to capture and track an image of the pointing device touching the light diffusing surface in order to control a cursor of an electronic device. Multiple touching devices, like fingers, can be used to control simultaneous events on the screen of an electronic device, e.g. a notebook PC, cellular phone, game device and a GPS device.