Electromagnetic touch control equipment and coordinate positioning method
A technology of electromagnetic touch and equipment, which is applied in the input/output process of electrical digital data processing, instruments, and data processing, etc., can solve the problem of inaccurate positioning of the stylus, and achieve the improvement of the strength of the induction signal, the convenience of calculation, and the improvement of positioning. The effect of precision
Inactive Publication Date: 2018-03-27
SHENZHEN HUION ANIMATION TECH
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Problems solved by technology
[0003] The display effective edge area of the antenna board of a traditional electromagnetic touch device is generally only covered by one antenna coil, so that when the stylus is in the middle area of the antenna board, it can be positioned by three antenna coils. However, when the stylus is in the middle area of the antenna board When displaying effective edge writing, the positioning of the stylus has only two coils, resulting in inaccurate positioning of the stylus
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[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0019] see figure 1 , the present invention provides an electromagnetic touch device 100, comprising an electromagnetic handwriting drive board 1 and an electromagnetic stylus 2 for handwriting input on the electromagnetic handwriting drive board 1 and emitting magnetic force lines, the electromagnetic handwriting drive board 1 includes Antenna board 11 and controller 12.
[0020] The electromagnetic stylus 2 is a handwriting input device with a resonant circuit inside, which can generate electromagnetic induction s...
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The invention provides electromagnetic touch control equipment which comprises an electromagnetic handwriting driver board and an electromagnetic handwriting pen. The electromagnetic handwriting driver board comprises an antenna board, a plurality of groups of first coils are distributed on the antenna board, the antenna board further comprises second coils arranged in a display effective marginalarea in the length direction of the antenna board, the width of the second coils is 2 / 3 of that of the first coils, and the second coils cover the display effective marginal area in the length direction of the antenna board and are at least partially positioned outside the display effective marginal area. Compared with the prior art, the electromagnetic touch control equipment has advantages of high positioning accuracy, convenience in calculation and capability of calculating the position of the electromagnetic handwriting pen according to an existing algorithm; by simultaneous signal transmission in the display effective marginal area through the first coils and the second coils, sensing signal intensity is remarkably improved.
Description
technical field [0001] The invention relates to the field of electromagnetic handwriting input, in particular to an electromagnetic touch device and a coordinate positioning method thereof. Background technique [0002] Electromagnetic touch equipment is a commonly used computer peripheral product, and the equipment used with it is an electromagnetic board. Data such as the track coordinates and pressure of the electromagnetic touch device moving on the electromagnetic board can be transmitted to the computer through the electromagnetic board, thereby realizing the purpose of writing and drawing. [0003] The display effective edge area of the antenna board of a traditional electromagnetic touch device is generally only covered by one antenna coil, so that when the stylus is in the middle area of the antenna board, it can be positioned by three antenna coils. However, when the stylus is in the middle area of the antenna board When displaying effective edge writing, th...
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CPCG06F3/046
Inventor 王周宏吴世华
Owner SHENZHEN HUION ANIMATION TECH