Patent ID: 8701049

Claim:
A method of controlling an operating mode of an electronic device having a touch sensitive display screen, the method comprising: simultaneously displaying a plurality of areas corresponding to operating modes that are different from each other on the touch sensitive display screen; changing a size of a first area and a second area of the plurality of areas without closing the first area or the second area when a user drags a boundary line between the first and the second area via a multi touch drag on the touch sensitive display screen; and changing an operating mode of the first area and an operating mode of the second area of the plurality of areas when the multi touch drag on the touch sensitive display screen reaches a predetermined location of the touch sensitive display screen without closing the first area or the second area, the predetermined location being at, or within a predetermined distance from, a center line of the touch sensitive display screen, wherein the changing of the operating modes is a conversion of at least one of an operating state and an input/output attribute of a current screen, wherein the operating mode of the first area is changed from a first operating mode to a third operating mode, wherein the operating mode of the second area is changed from a second operating mode to a fourth operating mode, wherein the first operating mode is related to the second operating mode with respect to data input and display within the corresponding areas, wherein the third operating mode is related to the fourth operating mode with respect to data input and display within the corresponding areas, and wherein the first and second operating modes are voice communication modes for initiating voice communication, and the third and fourth operating modes are texting modes for transmitting text messages.