Electronic device and method of controlling electronic device using grip sensing

1. An electronic device comprising:

a touch screen disposed on a front of the electronic device;

a touch sensor configured to sense at least one touch on at least two different lateral sides of the electronic device;

a pressure sensor configured to sense at least one pressure on the at least two different lateral sides of the electronic device; and

a controller configured to determine a grip pattern, and a time period for which the grip pattern is maintained, on the electronic device using the touch sensor and the pressure sensor, and to control a predetermined function according to the grip pattern and the time period,

wherein the controller determines the grip pattern on the electronic device based on the sensed at least one touch and the sensed at least one pressure on the at least two different lateral sides of the electronic device, and

wherein the controller changes a first screen to a second screen rotated from the first screen, based on a change of the grip pattern.

2. The electronic device of claim 1 , wherein the touch sensor and the pressure sensor are disposed in a grip area on the lateral sides of the electronic device.

3. The electronic device of claim 1 , wherein when the electronic device rotates, the controller is configured to maintain displaying of the first screen if the grip pattern of the electronic device does not change.

4. The electronic device of claim 1 , wherein when the electronic device rotates, the controller is configured to change the first screen to the second screen rotated from the first screen, according to a rotation of the electronic device, if the grip pattern of the electronic device changes.

5. The electronic device of claim 1 , wherein if the electronic device is gripped according to a predetermined grip pattern, the controller is configured to execute a predetermined function.

6. The electronic device of claim 1 , wherein if a specific grip pattern is sensed whenever a function is executed, the controller is configured to generate a function execution command according to the specific grip pattern.

7. The electronic device of claim 1 , wherein when the electronic device is in a locked state, the controller is configured to unlock the electronic device according to a predetermined grip pattern.

8. The electronic device of claim 1 , wherein when the electronic device is in a power-off state, the controller is configured to power on the electronic device according to the time period for which a predetermined grip pattern is maintained.

9. The electronic device of claim 1 , wherein if a predetermined input is sensed on the grip area when the electronic device has been gripped, the controller is configured to control at least one of volume-up/down of a speaker and zoom-in/out of a camera.

10. The electronic device of claim 1 , further comprising a touch screen, wherein the controller is configured to determine whether the electronic device has been gripped if a touch input is sensed on the touch screen, and to ignore the touch input if it is determined that the electronic device has been gripped.

11. The electronic device of claim 1 , wherein if a touch input is sensed on the touch screen when the electronic device has been gripped, the controller is configured to determine whether the touch input is made by a palm, and to ignore the touch input if it is determined that the touch input is made by the palm.

12. A method of controlling an electronic device using grip sensing, the method comprising:

determining a grip pattern on the electronic device; and

controlling a predetermined function according to the grip pattern and a time period for which the grip pattern is maintained,

wherein the determining the grip pattern includes sensing at least one touch and at least one pressure on at least two different lateral sides of the electronic device and determining the grip pattern on the at least two different lateral sides of the electronic device based on the sensed at least one touch and the sensed at least one pressure on the at least two different lateral sides of the electronic device, and

wherein the controlling includes changing a first screen to a second screen rotated from the first screen, based on a change of the grip pattern.

13. The method of claim 12 , wherein controlling the predetermined function according to the grip pattern comprises:

determining the grip pattern if the electronic device senses rotation; and

maintaining displaying of the first screen if the grip pattern does not change.

14. The method of claim 12 , wherein controlling the predetermined function according to the grip pattern comprises:

determining the grip pattern if the electronic device senses rotation; and

changing the first screen to the second screen rotated from the first screen, according to the rotation of the electronic device, if the grip pattern changes.

15. The method of claim 12 , wherein controlling the predetermined function according to the grip pattern comprises:

determining whether the grip pattern is a predetermined grip pattern; and

executing a predetermined function if it is determined that the electronic device is gripped according to the predetermined grip pattern.

16. The method of claim 12 , wherein controlling the predetermined function according to the grip pattern comprises:

determining whether a specific grip pattern is sensed whenever a function is executed; and

generating a function execution command according to the specific grip pattern if it is determined that the specific grip pattern is sensed whenever the function is executed.

17. The method of claim 12 , wherein controlling the predetermined function according to the grip pattern comprises:

determining the grip pattern when the electronic device is in a locked state; and

unlocking the electronic device according to the grip pattern.

18. The method of claim 12 , wherein controlling the predetermined function according to the grip pattern comprises:

when the electronic device is in a power-off state, powering on the electronic device according to the time period for which the grip pattern is maintained.

19. The method of claim 12 , wherein controlling the predetermined function according to the grip pattern comprises:

determining whether a predetermined input is sensed on a grip area, when the electronic device has been gripped; and

controlling at least one of volume-up/down of a speaker and zoom-in/out of a camera, if it is determined that the predetermined input is sensed on the grip area.

20. The method of claim 12 , wherein controlling the predetermined function according to the grip pattern comprises:

determines whether a touch input is sensed on a touch screen of the electronic device;

determining whether the electronic device has been gripped, if it is determined that the touch input is sensed on the touch screen; and

ignoring the touch input if it is determined that the electronic device has been gripped.

21. The method of claim 12 , wherein controlling the predetermined function according to the grip pattern comprises:

determining whether a touch input is sensed on a touch screen of the electronic device, when the electronic device has been gripped;

determining whether the touch input is made by a palm, if it is determined that the touch input is sensed on the touch screen; and

ignoring the touch input if it is determined that the touch input is made by the palm.