Infrared electronic whiteboard and control method

An electronic whiteboard and infrared technology, applied in the direction of electrical digital data processing, instrumentation, data processing input/output process, etc., can solve the problems of poor anti-interference ability, large whiteboard area, complex circuit, etc., and achieve strong anti-interference ability, The transmission circuit is simple and the effect of improving the response speed

Active Publication Date: 2012-02-01
HITEVISION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The circuit board with large size and many components not only occupies a large area of ​​the whiteboard, but also has high cost, but also has complex circuits, high failure rate, and poor anti-interference ability

Method used

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  • Infrared electronic whiteboard and control method
  • Infrared electronic whiteboard and control method
  • Infrared electronic whiteboard and control method

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0040] An embodiment of the infrared electronic whiteboard of the present invention includes a rectangular screen and a whiteboard circuit, and the whiteboard circuit includes a control circuit, an infrared receiving circuit, a first infrared emitting circuit and a second infrared emitting circuit.

[0041] Such as figure 2 As shown, each infrared emitting circuit includes many infrared emitting tubes, and the number depends on the length of the whiteboard frame. The circuit board of the first infrared emitting circuit and the circuit board of the second infrared emitting circuit are relatively arranged on two side frame parts of the rectangular screen. The side frame is the short side of the rectangular screen, which can reduce the length of the launch board and the number of circuit components to reduce the cost of the product.

[0042] The infrared receiving circuit is divided into four external receiving amplifying circuits, each infrared receiving amplifying circuit has...

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PUM

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Abstract

The invention discloses an infrared electronic whiteboard and a control method. The infrared electronic whiteboard comprises a rectangular screen and a whiteboard circuit, wherein the whiteboard circuit comprises a control circuit, an infrared receiving circuit, a first infrared transmitting circuit and a second infrared transmitting circuit; each infrared transmitting circuit comprises a plurality of infrared transmitting tubes; the circuit board of the first infrared transmitting circuit and the circuit board of the second infrared transmitting circuit are oppositely arranged at the two rim parts of the rectangular screen; the infrared receiving circuit comprises four infrared receiving tubes; and the four infrared receiving tubes are respectively arranged at four corners of the rectangular screen. The infrared electronic whiteboard has the advantages of simple circuits, a few components, low fault rate and low cost; and the response speed and the whole anti-interference capacity of the infrared electronic whiteboard are improved.

Description

[technical field] [0001] The invention relates to an electronic whiteboard, in particular to an infrared electronic whiteboard and a control method. [Background technique] [0002] The circuit board occupies a large proportion in the hardware cost of the infrared whiteboard, such as figure 1 As shown, the upper, lower and left and right circuit boards in the X and Y directions are uniformly arranged with infrared emitting tubes and infrared receiving tubes, corresponding to form an infrared matrix that crosses horizontally and vertically. Since the infrared emitting tube and receiving tube need circuit board driving and signal receiving amplification, these circuit boards also need to be arranged around the whiteboard. The larger the size of the whiteboard, the longer the circuit board. Moreover, a rectangular electronic whiteboard generally has a long side and a short side. There are more circuit boards on the long side than the short side. Especially for a 16:9 electronic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/042
Inventor 郭亚临谢晓东厉建明
Owner HITEVISION CO LTD
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