Patent ID: 8059100

Claim:
A mobile terminal comprising: a storage unit for storing data associated with a plurality of sensing-zones; a touch screen configured to display a plurality of keys associated with the plurality of sensing-zones, such that each of the plurality of keys is associated with a different sensing-zone; a controller for associating the plurality of keys to the plurality of sensing-zones; a sensing-zone mode setup unit for establishing a sensing-zone mode and for adjusting the size and dimension of each of the plurality of sensing-zones according to the established sensing-zone mode such that at least two of the sensing-zones are different in size; a key assignment unit for generating a key assignment signal for associating a key from the plurality of keys to a sensing-zone from the plurality of sensing-zones; a rotation detection unit for detecting a rotation of the touch-screen, wherein the controller adjusts a direction of the plurality of sensing-zones according to the detected rotation of the touch-screen; and a frequency measurement unit for measuring a use frequency for each of the plurality of keys, wherein the controller associates a key having a higher use frequency to a larger sensing-zone, and the plurality of sensing-zones are arranged in order of greatest size to least size according to the established sensing zone mode.