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Signal processing device and signal processing method

A signal processing device and signal processing technology, which are used in electrical digital data processing, input/output process of data processing, instruments, etc., and can solve problems such as noise interference and unstable coordinate position.

Active Publication Date: 2011-08-31
MACRONIX INT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the traditional resistive touch panel, when detecting these signals, it is often interfered by noise, which leads to unstable coordinate positions

Method used

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  • Signal processing device and signal processing method
  • Signal processing device and signal processing method
  • Signal processing device and signal processing method

Examples

Experimental program
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Embodiment Construction

[0025] Please refer to Figure 1A , which shows a flowchart of a signal processing method according to an embodiment of the present invention. The signal processing method can be applied to a touch panel, especially to a resistive touch panel. When the touch panel is touched, the touch panel will generate a touch event. The method is used to generate a piece of positioning data according to a plurality of pieces of raw data obtained sequentially from a continuous input signal corresponding to a touch event.

[0026] In this embodiment, when a touch event occurs, the touched position of the touch panel will be sensed, and a continuous input signal corresponding to the touch event will be generated, and the continuous input signal includes X-direction and Y-direction continuous input signal. In the embodiment of the present invention, the positioning data in the X direction and the Y direction can be determined according to the continuous input signals in the X direction and t...

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Abstract

The invention discloses a signal processing device and a signal processing method. The signal processing method is applied to a touch panel; and when being touched, the touch panel generates a touch event. In the method, a group of locating data are generated according to a plurality of original data obtained in sequence by the continuously input signals corresponding to the touch event, and the method comprises the following steps: setting the size of a window to be n which is a positive integer; processing n groups of original data in the window to obtain k groups of sequenced data which are sequenced according to the size, wherein, k is a positive integer which is less than n, and in the window, the k groups of sequenced data are the k groups of original data which are closest to the local minimum; processing the k groups of sequenced data to determine one group of output data; and generating the group of locating data according to the group of output data.

Description

technical field [0001] The present invention relates to a processing device and a processing method, and in particular to a signal processing device and a signal processing method. Background technique [0002] Touch display panel technology has been widely used in electronic devices, such as mobile phones, notebook computers, music players (MP3), personal digital assistants (PDA), global satellite positioning systems (GPS), and portable electronic products. You can see a corner of the application field of the touch display panel. [0003] A common type of touch panel is a resistive touch panel. Generally speaking, in a traditional resistive touch panel, when the touch panel is touched, signals in the X direction and Y direction will be induced at the touch point on the panel. By detecting the signals in the X direction and the Y direction and judging the coordinate values ​​represented by them, the coordinate position of the touch point can be located. However, in the tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041G06F3/045
Inventor 刘健铃邹宏基李彦泽张文林
Owner MACRONIX INT CO LTD