Patent ID: 8872800
Filing Date: 2014-10-28
Classification: G06F

Abstract:
1. A three-dimensional (3D) touch-type input system for a computing device, the system comprising: three infrared (IR) emitters fixedly coupled to an input device for emitting three IR signals; two position sensors fixedly coupled to the computing device configured to receive the three IR signals emitted from the three IR emitters, each of the two position sensors configured to sense two two-dimensional (2D) directions for each of the three IR signals emitted from the input device, the two position sensors combinedly sensing six 2D directions; and a processor configured to use the six 2D directions sensed by the two position sensors to determine at least one of an orientation of the input device, or a 3D position of a tip of the input device in a volume of space above a major surface of the computing device.