Multi-input large-area writing method, device and system
A large-area, multi-input technology, applied in the electronic field, can solve the problems of slow response, high cost, unfavorable electronic whiteboard popularization, etc., to achieve accurate erasing, reduce high-speed and high-precision effects
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[0074] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. 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.
[0075] figure 1 It is a schematic diagram of the structure and composition of the electronic whiteboard according to the embodiment of the present invention, such as figure 1 As shown, the plane monitoring area of the electronic whiteboard in the embodiment of the present invention is a whiteboard or blackboard, and the optical positioning sensor A and the optical positioning sensor B are arranged on both sides of the whiteboard or blackboard a...
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