Self-capacitive touch control apparatus and control method thereof
First Claim
Patent Images
1. A control method for a self-capacitive touch control apparatus, the self-capacitive touch control apparatus comprising a plurality of electrodes, the control method comprising:
- a) detecting capacitance changes in the electrodes to generate sensing results;
b) calculating a total sensing amount according to the sensing results, and determining a number of touch points according to the total sensing amount;
c) grouping the sensing results according to the number of touch points to generate a grouping result; and
d) generating position information of one or more touch points corresponding to the number of touch points according to the grouping result and the sensing results,wherein the number of touch points is determined by comparing the total sensing amount to a predetermined upper threshold and a predetermined lower threshold.
4 Assignments
0 Petitions
Accused Products
Abstract
A self-capacitive touch control apparatus includes a plurality of electrodes, a plurality of sensors, and a number determining module. The sensors detect capacitance changes in the electrodes to generate a plurality of sensing results. The number determining module calculates a total sensing amount according to the sensing results, and determines the number of touch points according to the total sensing amount.
11 Citations
5 Claims
-
1. A control method for a self-capacitive touch control apparatus, the self-capacitive touch control apparatus comprising a plurality of electrodes, the control method comprising:
-
a) detecting capacitance changes in the electrodes to generate sensing results; b) calculating a total sensing amount according to the sensing results, and determining a number of touch points according to the total sensing amount; c) grouping the sensing results according to the number of touch points to generate a grouping result; and d) generating position information of one or more touch points corresponding to the number of touch points according to the grouping result and the sensing results, wherein the number of touch points is determined by comparing the total sensing amount to a predetermined upper threshold and a predetermined lower threshold. - View Dependent Claims (2, 3, 4, 5)
-
Specification