Mobile terminal and touch recognizing method therein

摘要

A mobile terminal and touch recognizing method therein are disclosed, by which a multi-touch can be recognized. The present invention includes receiving a plurality of touches simultaneously using a touchscreen, consecutively receiving a plurality of images including a plurality of the received touches for a predetermined time using a camera provided under the touchscreen, determining patterns and pattern changes of a plurality of the touches included in a plurality of the images, respectively, and recognizing a gesture by a plurality of the touches in accordance with a result of the determining step. Moreover, the touch pattern includes at least one selected from the group consisting of a touch number, a touch point, a touch size and a touch figure.

主权项

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