Patent ID: 8937613
Filing Date: 2015-01-20
Classification: G06F

Abstract:
1. A human-machine interface, comprising: a panel formed of energy transmissive material, and having a substantially non-deformable major contact surface and a second major surface substantially parallel with the major contact surface; an energy source to direct energy to the panel; an image acquisition device to acquire, through the panel and through the second major surface, an image of a region including the one or more contact regions and generally being over the area of the major contact surface and including at least the alterations of the at least one parameter of the energy; and a processor configured to communicate with the image acquisition device and process the image to determine a location of each contact region at which the object contacts the major contact surface, wherein the determination of the location of each contact region is based on at least the alterations of the at least one parameter of the energy.