Patent ID: 8994694
Filing Date: 2015-03-31
Classification: G06F

Abstract:
1. A user input device for an electronic device, comprising: an illumination source; an image sensor module; a translucent layer disposed above the illumination source and the image sensor module, the translucent layer comprising at least a first set of patterns disposed thereon; and a deformable layer disposed above the translucent layer; at least a second set of patterns present on a bottom surface of the deformable layer, the bottom surface facing the translucent layer; and a separation region separating the translucent layer and the deformable layer, the separation region separating the translucent layer and the deformable layer by a separation distance, the separation distance having first distance when no pressure is applied to the deformable layer, the illumination source configured to illuminate at least the portion of the translucent layer, and the image sensor module comprising a field of view corresponding to at least a portion of the translucent layer, the image sensor module being configured to detect a third set of patterns when the deformable layer is deformed,