Touch Screen Apparatus and Processing Method Thereof
First Claim
1. A touch screen apparatus comprising a receiving unit, a sending unit, a demodulator, a mutual capacitance connected between the receiving unit and the sending unit, and a data processing and analyzing module, wherein the touch screen apparatus further comprises a frequency spectrum analyzing unit and a frequency control unit;
- an output terminal of the receiving unit is connected to an input terminal of the frequency spectrum analyzing unit, and the output terminal of the receiving unit is further connected to the data processing and analyzing module via the demodulator;
the frequency spectrum analyzing unit is configured to determine whether a frequency domain signal of a signal output by the receiving unit or of a signal obtained by processing the signal output by the receiving unit for at least once comprises a predetermined noise signal feature; and
the frequency control unit is connected between the frequency spectrum analyzing unit and a frequency control terminal of the sending unit and is configured to control a frequency of a signal sent by the sending unit when the frequency spectrum analyzing unit determines that a signal received by the receiving unit comprises a noise signal.
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Accused Products
Abstract
A touch screen apparatus and a processing method thereof. In the touch screen apparatus according to the embodiment of the invention, a frequency spectrum analyzing unit determines that a frequency domain signal of a signal received by a receiving unit in the touch screen apparatus or of a signal obtained by processing the signal received by the receiving unit for at least once includes a predetermined noise signal feature, and then a frequency control unit controls the frequency of the signal sent by a sending unit, so that there is as little interference of the noise as possible when the sending unit performs transmission.
9 Citations
12 Claims
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1. A touch screen apparatus comprising a receiving unit, a sending unit, a demodulator, a mutual capacitance connected between the receiving unit and the sending unit, and a data processing and analyzing module, wherein the touch screen apparatus further comprises a frequency spectrum analyzing unit and a frequency control unit;
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an output terminal of the receiving unit is connected to an input terminal of the frequency spectrum analyzing unit, and the output terminal of the receiving unit is further connected to the data processing and analyzing module via the demodulator; the frequency spectrum analyzing unit is configured to determine whether a frequency domain signal of a signal output by the receiving unit or of a signal obtained by processing the signal output by the receiving unit for at least once comprises a predetermined noise signal feature; and the frequency control unit is connected between the frequency spectrum analyzing unit and a frequency control terminal of the sending unit and is configured to control a frequency of a signal sent by the sending unit when the frequency spectrum analyzing unit determines that a signal received by the receiving unit comprises a noise signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A processing method for a touch screen apparatus, comprising:
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acquiring a frequency domain signal of a signal received by a receiving unit in the touch screen apparatus or of a signal obtained by processing the signal received by the receiving unit for at least once; and determining that the acquired frequency domain signal comprises a predetermined noise signal feature, and controlling a frequency of a signal sent by a sending unit in the touch screen apparatus so that the sending unit sends the signal according to the controlled frequency. - View Dependent Claims (10, 11, 12)
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Specification