Method for determining range to be scanned and light paths to be scanned in touch area recognition
A technology of touch area and determination method, which is applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve the problem of long time-consuming touch area identification, reduce the number of optical path scans, reduce time-consuming, improve The effect of scanning efficiency
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0033] Embodiment 1: a method for determining the required scanning range for touch screen touch area identification, comprising the following steps:
[0034] (1) All optical paths are layered, and the set of all optical paths with the same outgoing angle is regarded as an optical path layer;
[0035] (2) Determine the optical path layer to be scanned in the next frame according to the density of the touch area in the current frame.
[0036] Step (2) can be specifically: group all optical path layers first, and the grouping method can be set as a group of any two layers, a group of any three layers and / or all layers as a group, etc. The specific number of groups and each The number of optical path layers in a group can be set according to the total number of optical path layers of the current touch screen and the required precision; and an instruction or binary code is set for each group, and the touch screen controller is based on the density of the touch area of the curren...
Embodiment 2
[0044] Embodiment 2: A method for determining the optical path required for the touch area recognition of a touch screen, comprising the following steps:
[0045] (1) Segment the full-screen area of the touch screen, and set an area mask for each segmented area; set an optical path mask for all optical paths, and the optical path mask of each optical path is the segmented area that the optical path passes through. area mask or operation result;
[0046] (2) When a touch action occurs, perform an OR operation on the area masks of all areas where the touch occurs, so as to obtain the area mask used to determine the scanning optical path required for the next frame;
[0047] (3) Perform an AND operation with the optical path masks of all optical paths and the area mask used to determine the optical path to be scanned in the next frame obtained through step (2). If the result is non-zero, the optical path needs to be scanned. If the result is If it is zero, the optical path doe...
Embodiment 3
[0049] Embodiment 3: A method for determining the optical path required for the touch area recognition of a touch screen, comprising the following steps:
[0050] (1) Layer all optical paths, and each optical path layer has a layer mask; segment the full screen area of the touch screen, and each split area has an area mask; the layering method can be to make all the outgoing angles the same The collection of optical paths is regarded as an optical path layer;
[0051] An optical path mask is set for each optical path, which has a layer mask representing the optical path layer where the optical path is located, and an area mask representing the touch screen area that the optical path passes through; the layer mask in the optical path mask should be is the OR operation result of the layer masks of all the optical path layers to which this optical path belongs; the area mask in the escape mask shall be the OR operation result of the area masks of the segmented areas that this o...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More