Mobile terminal and touch recognizing method therein

1. A mobile terminal, comprising:

a touchscreen configured to simultaneously receive a plurality of touches and to display information;

a camera provided under the touchscreen, the camera configured to capture a plurality of images of the plurality of received touches; and

a controller configured to:

detect the plurality of touches from the plurality of captured images;

detect a first touch scheme, a second touch scheme, a third touch scheme, and a fourth touch scheme from the plurality of touches, the first touch scheme and the second touch scheme each comprising at least two touches;

determine patterns and pattern changes of a first intermediate point of the at least two touches of the first touch scheme and a second intermediate point of the at least two touches of the second touch scheme;

recognize a gesture pattern of the plurality of touches based on the patterns and pattern changes of the first intermediate point and the second intermediate point;

recognize the third touch scheme as an enlarging gesture, wherein the third touch scheme comprises a first touch and a second touch of the plurality of touches, the second touch located to a right side of the first touch, and wherein the first touch is rotated clockwise while the second touch is rotated counter-clockwise at a same time, each of the first and second touches rotated while maintaining a same respective touch location;

cause enlargement of the displayed information based on the recognized third touch scheme;

recognize the fourth touch scheme as a reducing gesture, wherein the fourth touch scheme comprises a third touch and a fourth touch of the plurality of touches, the third and fourth touches simultaneously received via the touchscreen, and the fourth touch located to a right side of the third touch, and wherein the third touch is rotated counter-clockwise while the fourth touch is rotated clockwise at a same time, each of the third and fourth touches rotated while maintaining a same respective touch location; and

cause reduction of the displayed information based on the recognized fourth touch scheme.

2. The mobile terminal of claim 1 , wherein the controller is further configured to recognize the gesture pattern by detecting at least a number of touches, a position of at least one touch, a size of at least one touch, or a shape of at least one touch.

3. The mobile terminal of claim 1 , wherein the controller is further configured to recognize the gesture pattern by detecting at least a moved distance, a moved direction, or a change in distance from a particular point of each of the plurality of touches.

4. The mobile terminal of claim 3 , wherein the controller is further configured to detect:

a reducing gesture pattern when the moved direction of each of two or more of the plurality of touches is a direction converging toward a particular point; and

an enlarging gesture pattern when the moved direction of each of two or more of the plurality of touches is a direction expanding away from a particular point.

5. The mobile terminal of claim 3 , wherein the controller is further configured to:

group at least two touches of the plurality of touches, wherein the moved direction of each of the at least two touches comprises a same direction; and

generate a representative touch of the grouped at least two touches.

6. The mobile terminal of claim 5 , wherein the controller is further configured to detect at least a shift gesture pattern or a scroll gesture pattern in response to a moved distance or a moved direction of the representative touch.

7. The mobile terminal of claim 2 , wherein the controller is further configured to:

recognize an enlarging gesture pattern when the size of each of the plurality of touches increases; and

recognize a reducing gesture pattern when the size of each of the plurality of touches decreases.

8. The mobile terminal of claim 2 , wherein the controller is further configured to recognize a rotating gesture pattern by detecting a rotating movement of each of the plurality of touches in a first direction.

9. The mobile terminal of claim 1 , further comprising a memory configured to store information related to a plurality of gesture patterns corresponding to the plurality of touches.

10. The mobile terminal of claim 1 , wherein the controller is further configured to cause the touchscreen to perform a display operation corresponding to the recognized gesture pattern.

11. A method for recognizing touch inputs in a mobile terminal, the method comprising:

displaying, on a touchscreen of the mobile terminal, information;

capturing, via a camera of the mobile terminal, a plurality of images of a plurality of touches to the touchscreen;

detecting the plurality of touches from the plurality of captured images;

detecting a first touch scheme, a second touch scheme, a third touch scheme, and a fourth touch scheme from the plurality of touches, the first touch scheme and the second touch scheme each comprising at least two touches;

determining patterns and pattern changes of a first intermediate point of the at least two touches of the first touch scheme and a second intermediate point of the at least two touches of the second touch scheme;

recognizing a gesture pattern of the plurality of touches based on the patterns and pattern changes of the first intermediate point and the second intermediate point;

recognizing the third touch scheme as an enlarging gesture, wherein the third touch scheme comprises a first touch and a second touch of the plurality of touches, the first and second touches simultaneously received via the touchscreen, and the second touch located to a right side of the first touch, and wherein the first touch is rotated clockwise while the second touch is rotated counter-clockwise at a same time, each of the first and second touches rotated while maintaining a same respective touch location;

enlarging the displayed information based on the recognized third touch scheme;

recognizing the fourth touch scheme as a reducing gesture, wherein the fourth touch scheme comprises a third touch and a fourth touch of the plurality of touches, the fourth touch located to a right side of the third touch, and wherein the third touch is rotated counter-clockwise while the fourth touch is rotated clockwise at a same time, each of the third and fourth touches rotated while maintaining a same respective touch location; and

reducing the displayed information based on the recognized fourth touch scheme.

12. The method of claim 11 , wherein the gesture pattern is further recognized by detecting at least a moved distance, a moved direction, or a change in distance from a particular point of each of the plurality of touches.

13. The method of claim 11 , wherein recognizing the gesture pattern further comprises:

recognizing a reducing gesture pattern when the moved direction of each of the plurality of touches is a direction converging toward a particular point;

recognizing an enlarging gesture pattern when the moved direction of each of the plurality of touches is a direction expanding away from a particular point; and

recognizing a rotating gesture pattern when the moved direction of each of the plurality of touches is circular about a particular point in a first direction.

14. The method of claim 12 , further comprising:

grouping at least two touches of the plurality of touches, wherein a detected moved direction of each of the at least two touches comprise a same direction; and

generating a representative touch of the grouped at least two touches.

15. The method of claim 14 , further comprising detecting at least a shift gesture pattern or a scroll gesture pattern in response to a moved distance or a moved direction of the representative touch.