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Multisampling frequency circuit and multisampling frequency method

A multi-sampling and frequency technology, applied in electrical components, electronic switches, pulse technology, etc., can solve problems such as users' unsmooth use experience and control circuit reading, so as to improve the probability of successful reading and increase the fluency of use Effect

Active Publication Date: 2013-01-30
ACER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, during the process of adjusting the sampling frequency, the control circuit cannot read any signal from the touch sensor, which will lead to an unsmooth user experience

Method used

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  • Multisampling frequency circuit and multisampling frequency method
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  • Multisampling frequency circuit and multisampling frequency method

Examples

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Embodiment Construction

[0034] figure 2 is a schematic diagram showing a multiple sampling frequency circuit 200 according to an embodiment of the present invention. Such as figure 2 As shown, the multiple sampling frequency circuit 200 can be applied to the touch device 202, and includes: a transmitter 204, a receiver 206, a plurality of clock pulse generators 208-1, 208-2, ..., 208-N (N is greater than or a positive integer equal to 2), a switcher 210, and a microcontroller 212. The touch device 202 may include a touch panel, a touch sensor, and the like.

[0035] The transmitter 204 can transmit the detection signal A1 to the touch device 202 according to the working sampling frequency CLKO. The receiver 206 can receive the position signal A2 from the touch device 202 according to the working sampling frequency CLKO, so as to obtain the user's touch information (eg, touch position, pressure). A plurality of clock pulse generators 208-1, 208-2, ..., 208-N can be used to generate multiple samp...

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PUM

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Abstract

The invention provides a multisampling frequency circuit and a multisampling frequency method which are applicable to a touch device. The multisampling frequency circuit comprises a transmitter, a receiver, a plurality of clock pulse generators and a switcher, wherein the transmitter is used for transmitting a detection signal to the touch device according to a working sampling frequency, the receiver is used for receiving a position signal from the touch device according to the working sampling frequency, the clock pulse generators are used for generating multiple sampling frequencies, and the switcher is used for selecting one of the clock pulse generators as a working clock pulse generator according to a switching signal and outputting the working sampling frequency generated by the working clock pulse generator to the transmitter and the receiver. Success rate of reading is increased by the aid of the multiple sampling frequencies, and use fluency of the touch device is improved.

Description

technical field [0001] The invention relates to a multiple sampling frequency circuit, in particular to a multiple sampling frequency circuit suitable for a touch device. Background technique [0002] In a traditional touch penal design, a control circuit reads signals from a touch sensor according to a sampling rate. When various sources of interference occur (for example: cell phone signal, 60Hz voltage cycle), the control circuit will adjust the sampling frequency to avoid reading errors. [0003] figure 1 It is a diagram showing the process of adjusting the sampling frequency by the control circuit of the known touch panel. At the beginning, the sampling frequency is the frequency point f1( figure 1 The frequency range in , representing the frequency point f1 can also be a Gaussian distribution frequency range centered on the frequency point f1). When the control circuit finds that the signal is disturbed, it adjusts the sampling frequency to the frequency point f2. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K17/96
Inventor 林永森
Owner ACER INC
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