Method and apparatus for recognizing grip state in electronic device

1. A method for recognizing a user's grip state in an electronic device, the method comprising:

detecting a hovering input which is inputted by a user's grip on the electronic device through a capacitive touch screen of the electronic device; and

determining, based on the hovering input, the user's grip state,

wherein determining the user's grip state comprises:

determining that the user's grip state is a left-hand grip state in response to identifying that a distribution of a signal corresponding to the hovering input includes a first form of decreasing-increasing-decreasing from a left edge of the capacitive touch screen to a right edge of the capacitive touch screen according to one axis of the capacitive touch screen, wherein a first difference between the signal and a reference value is greater than a threshold level during the decreasing-increasing of the first form, and the first difference is a zero level at the right edge; and

determining that the user's grip state is a right-hand grip state in response to identifying that the distribution includes a second form of increasing-decreasing-increasing from the left edge to the right edge according to the one axis, wherein a second difference between the signal and the reference value is greater than the threshold level during the decreasing-increasing of the second form, and the second difference is the zero level at the left edge.

2. The method of claim 1 , wherein determining the user's grip state further comprises in response to identifying that the distribution includes a third form of decreasing-increasing-decreasing-increasing-decreasing-increasing from the left edge to the right edge according to the one axis, determining that the user's grip state is a both-hand grip state, wherein a third difference between the signal and the reference value is greater than the threshold level during the decreasing-increasing-decreasing-increasing-decreasing-increasing of the third form.

3. The method of claim 1 , further comprising:

determining a user's grip position based on the determined user's grip state;

selecting at least one antenna in consideration of the user's grip position; and

transmitting/receiving data using the selected at least one antenna.

4. The method of claim 3 , wherein selecting the at least one antenna in consideration of the user's grip position comprises selecting a remnant antenna excepting an antenna corresponding to the user's grip position.

5. The method of claim 1 , further comprising:

adjusting a call volume in accordance with the user's grip state.

6. The method of claim 5 , wherein adjusting the call volume in accordance with the user's grip state further comprises:

in response to determining that the user's grip state is the left-hand grip state, adjusting the call volume in consideration of a left hearing of a user, and

in response to determining that the user's grip state is the right-hand grip state, adjusting the call volume in consideration of a right hearing of the user.

7. An apparatus for recognizing a user's grip state in an electronic device, the apparatus comprising:

a capacitive touch screen; and

a touch screen controller controlling the capacitive touch screen,

wherein the touch screen controller is configured to:

detect a hovering input which is inputted by a user's grip on the electronic device through the capacitive touch screen; and

determine, based on the hovering input, the user's grip state,

wherein the touch screen controller is further configured to:

determine that the user's grip state is a left-hand grip state in response to identifying that a distribution of a signal corresponding to the hovering input includes a first form of decreasing-increasing-decreasing from a left edge of the capacitive touch screen to a right edge of the capacitive touch screen according to one axis of the capacitive touch screen, wherein a first difference between the signal and a reference value is greater than a threshold level during the decreasing-increasing of the first form, and the first difference is a zero level at the right edge; and

determine that the user's grip state is a right-hand grip state in response to identifying that the distribution includes a second form of increasing-decreasing-increasing from the left edge to the right edge according to the one axis, wherein a second difference between the signal and the reference value is greater than the threshold level during the decreasing-increasing of the second form, and the second difference is the zero level at the left edge.

8. The apparatus of claim 7 , wherein the touch screen controller is further configured to:

in response to identifying that the distribution includes a third form of decreasing-increasing-decreasing-increasing-decreasing-increasing from the left edge to the right edge according to the one axis, determine that the user's grip state is a both-hand grip state, wherein a third difference between the signal and the reference value is greater than the threshold level during the decreasing-increasing-decreasing-increasing-decreasing-increasing of the third form.

9. The apparatus of claim 7 , wherein the touch screen controller is further configured to determine the user's grip state using a method of mechanical learning based on a pattern of previously extracted data.

10. The apparatus of claim 7 , wherein the touch screen controller is further configured to:

determine a user's grip position based on the determined user's grip state;

select at least one antenna in consideration of the user's grip position; and

transmit/receive data using the selected at least one antenna.

11. The apparatus of claim 10 , wherein the touch screen controller is further configured to select a remnant antenna excepting an antenna corresponding to the user's grip position.

12. The apparatus of claim 7 , wherein the touch screen controller is further configured to adjust a call volume in accordance with the user's grip state.

13. The apparatus of claim 12 , wherein the touch screen controller is further configured to:

in response to determining that the user's grip state is the left-hand grip state, adjust a call volume in consideration of a left hearing of a user, and

in response to determining that the user's grip state is the right-hand grip state, adjust the call volume in consideration of a right hearing of the user.

14. A non-transitory computer-readable storage medium for storing one or more programs, performed by an electronic device, the one or more programs including instructions which allow the device to perform a method for recognizing a user's grip state in the electronic device, the method comprising:

detecting a hovering input which is inputted by a user's grip on the electronic device through a capacitive touch screen of the electronic device; and

determining, based on the hovering input, the user's grip state,

wherein determining the user's grip state comprises:

determining that the user's grip state is a left-hand grip state in response to identifying that a distribution of a signal corresponding to the hovering input includes a form of decreasing-increasing-decreasing from a left edge of the capacitive touch screen to a right edge of the capacitive touch screen according to one axis of the capacitive touch screen, wherein a first difference between the signal and a reference value is greater than a threshold level during the decreasing-increasing of a first form, and the first difference is a zero level at the right edge; and

determining that the user's grip state is a right-hand grip state in response to identifying that the distribution includes a form of increasing-decreasing-increasing from the left edge to the right edge according to the one axis, wherein a second difference between the signal and the reference value is greater than the threshold level during the decreasing-increasing of a second form, and the second difference is the zero level at the left edge.