Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kristofer Jakobson0
Tomas Christiansson0
Date of Patent
May 25, 2021
Patent Application Number
16654393
Date Filed
October 16, 2019
Patent Citations
Patent Citations Received
Patent Primary Examiner
Patent abstract
An optical IR touch sensing apparatus can determine, based on output signals of light detectors, a light energy value for each light path across a touch surface, and generate a transmission value for each light path based on the light energy value. A processor can operate an image reconstruction algorithm on at least part of the thus-generated transmission values and determine a position of a touching object on the touch surface, an attenuation value corresponding to the attenuation of the light resulting from the object touching the touch surface, and an occlusion compensation value for compensating the occlusion affect from other objects on the touch surface. Using these values, the processor can identify the type of object.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.