Touch point location method and apparatus, and terminal device

The technology of a positioning device and positioning method is applied in the direction of instruments, electrical digital data processing, and input/output process of data processing, etc., which can solve the problems of difficult breakthroughs in reporting rate and long scanning time, etc., so as to improve the reporting rate , the effect of saving scanning time

Active Publication Date: 2016-05-18
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the interactive capacitance technology uses progressive scanning of all sensing areas of the touch screen, which needs to scan and detect X×Y electrodes. Difficult to break through

Method used

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  • Touch point location method and apparatus, and terminal device
  • Touch point location method and apparatus, and terminal device
  • Touch point location method and apparatus, and terminal device

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Embodiment Construction

[0045] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0046] The interactive capacitance in the embodiment of the present invention is also called mutual capacitance, and the touch screen adopting this technology is called interactive capacitive screen, mutual capacitance screen or mutual capacitance touch screen. When detecting the capacitance in the mutual-capacitance screen, the hor...

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Abstract

Embodiments of the invention disclose a touch screen touch point location method and apparatus, and a terminal device, which can effectively shorten scanning time and improve the report rate. The method comprises the steps that for each target sub-region in a target region, a touch screen controller scans horizontal channels in the target sub-region parallelly, determines the target sub-region with a touch point, and determines whether the sub-region with the touch point can be divided, if the sub-region with the touch point can be divided, the target sub-region with the touch point is used as a target region, the above steps are repeated till the target sub-region with the touch point cannot be divided, then the horizontal coordinate of the touch point is determined; and a longitudinal coordinate of the touch point is determined according to longitudinal channels receiving signals of the horizontal channels parallelly. According to the method, a plurality of channels parallelly transmit to scan the horizontal coordinate, the scanning range is reduced through division of the target region, iteration and decrement, so that scanning time is saved, the report rate is improved, and the user experience is improved.

Description

technical field [0001] The present invention relates to the field of touch screens, in particular to a touch point positioning method, device and terminal equipment of a touch screen. Background technique [0002] As a human-computer interaction interface, the touch screen is widely used in various digital information systems due to its advantages of ease of use, fast response, and space saving. When the touch screen is working, it will scan the touch screen at a certain scanning frequency to obtain the user's touch position. [0003] According to the working principle of the touch screen and the medium for transmitting information, the touch screen can be divided into resistive type, surface capacitive type, projected capacitive type, infrared type, surface acoustic wave type, bending wave type, active digital converter type and optical imaging type. With the advent of the iPhone and its global popularity, Apple took the lead in applying projected capacitive touch screens ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044G06F3/041
CPCG06F3/0416G06F3/044G06F2203/04104G06F2203/04107G06F3/041G06F3/04166G06F3/0445G06F3/0446
Inventor 钟光华苟书鑫黄基松
Owner HUAWEI TECH CO LTD
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