Method for tracking moving track of touch input on touch control panel and electronic device thereof

Abstract

The invention relates to a method for tracking a moving track of the touch input on a touch control panel, which is applicable to an electronic device with the touch control panel and comprises the following steps of: detecting M touch positions of M touch inputs on the touch control panel in the first time period; detecting N touch positions of N touch inputs on the touch control panel in the second time period, wherein M and N are positive integers, and in addition, M is smaller than or equal to N; selecting a special touch input from the M touch inputs, wherein the special touch control input corresponds to a specific touch position in the M touch positions; and judging the moving track of the special touch input on the touch control panel according to N distances respectively between the specific touch position and the N touch positions.

Description

technical field [0001] The present invention relates to a method for tracking the movement trajectory of touch input on a touch panel, especially a method capable of tracking the movement trajectory of multiple touch inputs on the touch panel to correctly judge user's operation gestures. Background technique [0002] In traditional capacitive and optical touch panels, the processor detects the touch input on the touch panel according to a predetermined scanning sequence. The corresponding coordinates are stored in an array of the storage device. For example, assuming that the processor scans the touch input on the entire touch panel line by line from the upper left to the lower right of the touch panel, the coordinates corresponding to the first scanned touch input will be stored in the The first position of the array, the coordinates corresponding to the second scanned touch input will be stored in the second position of the array, and so on. [0003] However, because the...

AI Technical Summary

Problems solved by technology

However, since the processor determines the trajectory of the touch input based on the position of the array, the processor will store the coordinates P of the first position of the array 120 2 ' is misjudged as the coordinate corresponding to the user's thumb (in fact, it should be corresponding to the user's index finger), and the second position coordinate P stored in the array 120 will also be stored in the array 120. 1 ’ is misjudged as corresponding to the coordinates of the user’s index finger (in fact, it should be corresponding to the user’s thumb), resulting in a misjudgment of the movement track of the user’s finger on the touch panel 100, and the inability to correctly judge the user’s operation gesture

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