Weaver Austin Villeneuve & Sampson LLP
Pressure, rotation and stylus functionality for interactive display screens
This disclosure provides systems, methods and apparatus related to touch and gesture recognition with an electronic interactive display. The interactive display has a front surface that includes a viewing area, a planar light guide disposed proximate to and behind the front surface, a light source, and at least one photo sensing element coupled with the first planar light guide. The planar light guide is configured to receive scattered light, the received scattered light resulting from interaction between light emitted by the light source and an object in optical contact with the front surface. The photo sensing element is configured to detect at least some of the received scattered light and to output, to a processor, image data. The processor is configured to recognize, from the image data, one or both of a contact pressure and a rotational orientation of the object.
QUALCOMM Incorporated
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Khurshid Syed Jacek Evgeni Petrovich Russell Wayne Samir Kumar Evgeni Yurij Linda Stacey Thomas Gordon John Michael
Alam Maitan Gousev Gruhlke Gupta Poliakov Irish Brown Wyrwas