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Method and device for positioning touch point

A positioning method and touch point technology, which is applied in the direction of instruments, electrical digital data processing, and data processing input/output process, can solve the problems of slow response speed of touch points, large amount of calculation, long time-consuming touch point positioning, etc., to achieve The effect of reducing the amount of calculation, improving the response speed, and shortening the positioning time

Active Publication Date: 2017-01-18
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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  • Method and device for positioning touch point
  • Method and device for positioning touch point
  • Method and device for positioning touch point

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Embodiment Construction

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

[0048]Before explaining and describing 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, and the terminal can be a mobile phone, a notebook computer, a UMPC (Ultra-mobile Personal Computer), a PDA (Personal Digital Assistant, 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. Wherein, the touch event may be triggered by the user, and the touch eve...

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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 field of touch technology, in particular to a touch point positioning method and device. Background technique [0002] With the development of touch technology, infrared touch screen, as a new type of computer input device, is widely used in many fields due to its 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 emission side, a long reception side, a short emission side and a short reception side. There are multiple infrared emission tubes on the long emission side and the short emission side, and multiple infrared emission tubes on the long reception side and the short reception side. an infrared receiving tube. Wherein, the infrared transmitting tube on the long transmitting side can emit infrared rays to the infrared receiving tube on the lo...

Claims

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Application Information

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Patent Type & Authority Applications(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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