TOUCH SENSING APPARATUS
First Claim
1. A touch sensing apparatus comprising:
- a sensor for receiving electricity signals from an object that touches the sensor;
an MCU (Microcontrol Unit) having a signal output port and a signal input port, the signal input port being connected to the sensor; and
an integration circuit interposed between the signal output port and the signal input port of the MCU;
wherein, the signal output port outputs AC signals to the signal input port through the integration circuit, the integration circuit prolongs active transition times of the AC signals, and the MCU identifies a touch on the sensor when the active transition times of the AC signals fall in a predetermined range and accordingly implements a predetermined function.
1 Assignment
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Accused Products
Abstract
A touch sensing apparatus is provided. A preferred embodiment of a touch sensing apparatus includes a sensor (13), an MCU (15), and an integration circuit (14). The sensor is for receiving electricity signals from an object that touches the sensor. The MCU (Microcontrol Unit) has a signal output port A and a signal input port B. The signal input port is connected to the sensor. The integration circuit interposes between the signal output port and the signal input port of the MCU. The signal output port outputs AC signals to the signal input port through the integration circuit. The integration circuit prolongs active transition times of the AC signals, and the MCU identifies a touch on the sensor when the active transition times of the AC signals fall in a predetermined range and accordingly implements a predetermined function.
7 Citations
6 Claims
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1. A touch sensing apparatus comprising:
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a sensor for receiving electricity signals from an object that touches the sensor; an MCU (Microcontrol Unit) having a signal output port and a signal input port, the signal input port being connected to the sensor; and an integration circuit interposed between the signal output port and the signal input port of the MCU; wherein, the signal output port outputs AC signals to the signal input port through the integration circuit, the integration circuit prolongs active transition times of the AC signals, and the MCU identifies a touch on the sensor when the active transition times of the AC signals fall in a predetermined range and accordingly implements a predetermined function. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification