Touch point positioning method and device

A positioning method and a technology of a positioning device, which are applied in the directions of instruments, computing, and electrical digital data processing, etc., can solve the problems of large amount of calculation, long time-consuming touch point positioning, and slow touch point response speed, so as to improve the response speed and shorten the positioning time. The effect of time-consuming and reducing the amount of calculation

Active Publication Date: 2019-03-01
HISENSE VISUAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the number of touch areas in the multiple scanning directions is generally large, the touch point positioning method directly superimposes the touch areas in the multiple scanning directions, and the amount of calculation is relatively large, which leads to a large amount of touch point positioning. It takes a long time and the touch point responds slowly

Method used

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  • Touch point positioning method and device
  • Touch point positioning method and device
  • Touch point positioning method and device

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Embodiment Construction

[0047] In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0048] Before explaining the embodiments of the present invention in detail, the application scenarios of the embodiments of the present invention will be described first. The touch point positioning method provided by the embodiment of the present invention is applied to a terminal, which can be a mobile phone, a notebook computer, a UMPC (Ultra-mobile Personal Computer), a PDA (Personal Digital Assistant), etc. The embodiment of the invention does not specifically limit this. Further, at least an infrared touch screen is configured in the terminal, and the infrared touch screen is used to detect touch events. The touch event may be triggered by the user, and the touch event may be a single click event, a double click event, a sliding event,...

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Abstract

The invention discloses a method and device for positioning a touch point, and belongs to the technical field of touch. The method comprises the following steps: determining at least one candidate region in an infrared touch screen; determining related regions of the candidate region from a touch region in multiple scanning directions for each candidate region from at least one candidate region; judging whether the related regions in at least two scanning directions are designated related regions in the related region of the candidate region or not; intersecting center lines of related regions in any two scanning directions in at least two scanning directions to obtain at least one candidate intersection point when related regions in at least two scanning directions in the related regions of the candidate region are designated related regions; and determining a true touch point in the infrared touch screen from at least one candidate intersection point. The method can be used for shortening the time consumption for positioning the touch point and improving the response speed of the touch point.

Description

Technical field [0001] The present invention relates to the technical field of touch control, in particular to a method and device for locating touch points. Background technique [0002] With the development of touch technology, infrared touch screens, as a new type of computer input device, are widely used in many fields due to their simple structure and low cost. Its application makes human-computer interaction more intuitive and greatly facilitates people's work and life. Such as figure 1 As shown, the infrared touch screen usually includes a long transmitting side, a long receiving side, a short transmitting side and a short receiving side. There are multiple infrared transmitting tubes on the long transmitting side and the short transmitting side. An infrared receiver tube. Among them, the infrared transmitting tube on the long transmitting side can emit infrared to the infrared receiving tube on the long receiving side, and the infrared transmitting tube on the short tra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041G06F3/042
CPCG06F3/0416G06F3/0421
Inventor 张晓娜王武军杨林曹建伟
Owner HISENSE VISUAL TECH CO LTD
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