Patent ID: 8310455

Claim:
An electronic apparatus, comprising: a display for displaying information; an input interface disposed adjacent to the display, the input interface comprising: a first touch sensing region having a plurality of touch pads arranged in a radial array therein; a second touch sensing region adjacent to a side of the first touch sensing region, the second touch sensing region having a plurality of touch pads arranged in a matrix array therein; and a third sensing region adjacent to another side of the first touch sensing region, the third sensing region having a plurality of touch pads arranged in a matrix array therein; wherein the first touch sensing region is positioned between the second touch sensing region and the third touch sensing region; a controller, electrically coupled to each touch pad in the input interface, for detecting a user input on the input interface and generating a plurality of sensing signals according to the user input; and a processor, electrically coupled to the controller, for executing a corresponding function according to the plurality of sensing signals; wherein each of the touch pads in the first touch sensing region has a saw-tooth edge and is connected to one another with the saw-tooth edge.