Patent ID: 9141148
Filing Date: 2015-09-22
Classification: G06F,H04M

Abstract:
1. A mobile communication device comprising: a housing of such a size that it can be held in one hand, a display integrated into the housing for providing an image reproduction surface, a controller for activating the display in such a way that it in an input mode provides a user interface that assists the realization of an input procedure, and an input device for carrying out the input procedure in accordance with input actions of a manual type, wherein the input device is configured such that when handling the device as intended, in an area placed in front of the display an input zone is provided within which input operations can be done by a user by performing control movements with his free hand with respect to the housing without touching the display or the mobile communication device with this hand, wherein a length and width of the display is smaller than a length and width of the input zone, and wherein the input device comprises an electrode structure comprising a central transmitter electrode comprising an electrode plate for generating a low frequency electric field and a first, a second and a third receiving electrode plates surrounding the transmitter electrode and configured to detect a low frequency electric field generated by the transmitter electrode and wherein at least one of a position of the free hand and a movement of the free hand within the input zone is detected by analyzing differences between signals received from said at least three electrodes plates.