Touch trajectory acquisition method and touch screen

A touch trajectory and acquisition method technology, applied in the direction of instruments, electrical digital data processing, data processing input/output process, etc., can solve the problems of multiple matching methods, large amount of calculation, and difficulty in quickly obtaining touch traces on the touch screen

Active Publication Date: 2016-11-16
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem in the prior art that when there are many touch points in the current scan cycle and the touch points in the previous scan cycle, there are too many possible matching methods and the amount of calculation is too large, which makes it difficult for the touch screen to quickly obtain the touch track of the touch object. Embodiments of the invention provide a method for acquiring a touch track and a touch screen

Method used

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  • Touch trajectory acquisition method and touch screen
  • Touch trajectory acquisition method and touch screen
  • Touch trajectory acquisition method and touch screen

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Embodiment Construction

[0031] 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.

[0032] figure 1 It is a flow chart of a method for acquiring a touch track according to an embodiment of the present invention. This embodiment is described by taking the touch track acquisition applied to acquiring a touch track on a touch screen as an example. The method for obtaining the touch track may include the following steps:

[0033] Step 101 , determine the partition on the touch screen where each of the at least two touch points in the current scan period is located, the touch screen includes at least one partition, and each partition includes at least one touch point in the previous scan cycle.

[0034] Step 102 , in the same partition, perform one-to-one matching between the touch points in the current scan cycle and the...

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Abstract

The invention discloses a touch trajectory acquisition method and a touch screen, pertaining to the technical field of touch control.The method comprises following steps: determining partitions where each touch point of at least two touch points is located in the touch screen within the current scanning period, wherein the touch screen comprises at least one partition, and each partition comprise at least one touch point in a last scanning period; matching touch points in the current scanning period with those in the last scanning period in the same partition; and determining the connecting lines between touch points in the last scanning period and matched touch points in the current scanning period as touch trajectories. The touch trajectory acquisition method and the touch screen have following beneficial effects: by matching touch points in the current scanning period with those in the last scanning period one by one on the same partition of the touch screen, the touch screen can rapidly obtain touch trajectories of touch objects so that the possible matching methods are many and calculation loads are small; and the touch screen can rapidly obtain the touch trajectories of touch objects.

Description

technical field [0001] The invention relates to the field of touch technology, in particular to a method for acquiring a touch track and a touch screen. Background technique [0002] The touch screen can be infrared touch screen, capacitive touch screen, resistive touch screen and surface acoustic wave touch screen, etc. Depending on the type, the structure of the touch screen will be different. For example, there are multiple pairs of infrared tubes on the four sides of the infrared touch screen. Each pair of infrared tubes includes an infrared emitting tube and an infrared receiving tube. The infrared emitting tube is used to emit infrared light. , the infrared receiving tube is used to receive the infrared light in the scanning direction. When the touch object touches the infrared touch screen, the infrared light between the infrared pair tubes will be blocked, and then the infrared light can be blocked according to the position of the infrared pair tube. Determine the l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
Inventor 张晓娜王武军薛晓光李新
Owner HISENSE VISUAL TECH CO LTD
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