Patent ID: 8907908

Claim:
A method for identifying multiple touch objects comprising steps of: reading at least one touched cluster to be identified in a sensing frame and determining a range of each one of the at least one touched cluster to be identified; comparing the range of each touched cluster to be identified with a first preset division range, if the range of the touched cluster to be identified exceeds the first preset division range, determining the touched cluster to be identified as a first touched cluster to be divided and performing a next step, and otherwise, resuming a previous step; selecting one sensing point intersected by a middle column and a middle row of the first touched cluster to be divided when a count of sensing points along X axis is odd and a count of sensing points along Y axis is odd, and reducing a sensing value of the selected sensing point; selecting two sensing points intersected by a middle column and two adjacent middle rows of the first touched cluster to be divided when a count of sensing points along X axis is odd and a count of sensing point along Y axis is even, and reducing a sensing value of at least one of the two selected sensing points; selecting two sensing points intersected by a middle row and two adjacent middle columns of the first touched cluster to be divided when a count of sensing points along X axis is even and a count of sensing points along Y axis is odd, and reducing a sensing value of at least one of the two selected sensing points; selecting four sensing points intersected by two adjacent middle rows and two adjacent middle columns of the first touched cluster to be divided when a count of sensing points along X axis is even and a count of sensing points along Y axis is even, and reducing a sensing value of at least one of the four selected sensing points; determining a count of center sensing points of each first touched cluster to be divided, wherein each sensing point is aligned with a center of a range consisting of multiple sensing points the center sensing point is determined according to the sensing values of the sensing points within the range; and dividing the first touched cluster to be divided containing multiple center sensing points.