Touch sensor system
First Claim
Patent Images
1. A touch sensor system comprising:
- detecting means for detecting, in accordance with an electrostatic capacitance signal indicative of a change in electrostatic capacitance, a hand placing region indicative of a region in which a hand is placed so as to carry out a touch input with respect to a touch panel which includes a plurality of electrostatic capacitances provided in a matrix pattern;
replacing means for replacing, by a non-value indicative of a state in which no touch input is carried out, a value of an electrostatic capacitance signal which value corresponds to an electrostatic capacitance provided in the hand placing region detected by the detecting means; and
touch input recognizing means for supplying a coordinate value of the touch input to a host device in accordance with (i) the electrostatic capacitance signal whose value has been replaced by the non-value by the replacing means and (ii) an electrostatic capacitance signal corresponding to an electrostatic capacitance provided outside the hand placing region,the detecting means detecting the hand placing region in accordance with (i) a strength threshold for determining a strength of an electrostatic capacitance signal in a detection region so as to determine whether or not the touch input is carried out by a finger and (ii) a peripheral threshold which is lower than the strength threshold and is set so as to determine strengths of electrostatic capacitance signals in a plurality of peripheral regions surrounding the detection region.
1 Assignment
0 Petitions
Accused Products
Abstract
A detecting section of a touch sensor system detects a hand placing region in accordance with (i) a strength threshold for determining a strength of an electrostatic capacitance signal in a detection region so as to determine whether or not a touch input is carried out by a finger and (ii) a peripheral threshold which is lower than the strength threshold and is set so as to determine strengths of electrostatic capacitance signals in a plurality of peripheral regions surrounding the detection region.
15 Citations
4 Claims
-
1. A touch sensor system comprising:
-
detecting means for detecting, in accordance with an electrostatic capacitance signal indicative of a change in electrostatic capacitance, a hand placing region indicative of a region in which a hand is placed so as to carry out a touch input with respect to a touch panel which includes a plurality of electrostatic capacitances provided in a matrix pattern; replacing means for replacing, by a non-value indicative of a state in which no touch input is carried out, a value of an electrostatic capacitance signal which value corresponds to an electrostatic capacitance provided in the hand placing region detected by the detecting means; and touch input recognizing means for supplying a coordinate value of the touch input to a host device in accordance with (i) the electrostatic capacitance signal whose value has been replaced by the non-value by the replacing means and (ii) an electrostatic capacitance signal corresponding to an electrostatic capacitance provided outside the hand placing region, the detecting means detecting the hand placing region in accordance with (i) a strength threshold for determining a strength of an electrostatic capacitance signal in a detection region so as to determine whether or not the touch input is carried out by a finger and (ii) a peripheral threshold which is lower than the strength threshold and is set so as to determine strengths of electrostatic capacitance signals in a plurality of peripheral regions surrounding the detection region. - View Dependent Claims (2, 3, 4)
-
Specification