Local erasing method based on touch track recognition, writing board, blackboard and drawing board

A technology of touch track and writing board, which is applied to blackboards, drawing boards, writing boards, and partial erasure based on touch track recognition. Partial erasing of the range, improving efficiency, and avoiding confusion and misjudgment

Pending Publication Date: 2020-03-27
SHANDONG LANBEISITE EDUCATIONAL EQUIP GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But, the inventor of the present disclosure finds: (1) common blackboard eraser is easy to influence the handwriting on the side when wanting to erase the handwriting of a smaller range (for example 2cm-4cm diameter) than blackboard eraser in the course of actual use, i.e. Erase the handwriting that should not be erased; (2) If the diameter of the eraser is too small, the efficiency is low when erasing a large range of handwriting, and it is easy to be confused with the recognition of the writing pen, resulting in the synchronous transmission function of handwriting and erasing affected

Method used

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  • Local erasing method based on touch track recognition, writing board, blackboard and drawing board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as figure 1 As shown, Embodiment 1 of the present disclosure provides a local erasing method based on touch track recognition, which uses touch recognition to identify a touch object, and when the width of the touch object is within a preset width range, the movement track of the touch object is carried out. Recognition, judging whether the touch object is reciprocating within a preset range, and when the number of reciprocating movements exceeds the preset number, the position covered by the reciprocating movement is partially erased.

[0041] The touch object includes at least one of a finger, an electromagnetic pen, a whiteboard marker or a touch pen.

[0042] The touch recognition method includes at least one of infrared, electromagnetic, capacitive or ultrasonic touch recognition methods. The above touch recognition methods are all existing touch recognition technologies, which are not the core of the invention disclosed in this disclosure. Those skilled in th...

Embodiment 2

[0051] Embodiment 2 of the present disclosure provides a partial erasing method based on touch track recognition. When the width of the touch object is greater than the diameter of the tip of the writing pen, the movement track of the touch object is identified. Other steps are the same as in Embodiment 1. , which will not be repeated here.

Embodiment 3

[0053] Embodiment 3 of the present disclosure provides a tablet, including a main control unit and a motion trajectory identification unit. Using the partial erasing method based on touch trajectory identification described in Embodiment 1 of the present disclosure, the main control unit recognizes the Partial erasure of the position covered by the movement track of the touch object on the tablet;

[0054] The writing board also includes:

[0055] The handwriting storage unit is used to directly record and store the writing track information; or, convert the writing track into standard characters and store it;

[0056] The communication unit is used for communicating with external equipment, and transmitting the writing track information or standard characters to the external equipment.

[0057] The external device may be a mobile terminal such as a mobile phone or a PAD, and may also be a PC or other device terminals conceivable by those skilled in the art.

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Abstract

The invention provides a local erasing method based on touch track recognition, a writing board, a blackboard and a drawing board. The method comprises the steps that a touch recognition mode is usedfor recognizing a touch object, when the width of the touch object is within a preset width range, the motion trail of the touch object is recognized, whether the touch object does reciprocating motion within a preset range or not is judged, and when the number of times of reciprocating motion is larger than the preset number of times, the position covered by the reciprocating motion is locally erased. The motion trail of the touch object is recognized through induction, local erasing in a smaller range can be achieved, and confusion misjudgment of writing and erasing is avoided.

Description

technical field [0001] The present disclosure relates to the technical field of partial erasing of writing boards, in particular to a method for partial erasing based on touch track recognition, a writing board, a blackboard and a drawing board. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] Although the light energy blackboard has realized one-key clearing and partial erasing functions of the board eraser, for example, the patent number CN208367361U is a kind of writing film, writing board, blackboard and drawing board that can realize partial erasing, which can realize partial area erasure of the written content. While other areas are not affected by erasing, it overcomes the shortcomings of traditional technology that can only achieve full erasing; Patent No. CN110147171A liquid crystal writing film partial erasing voltage generation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041G06F3/0488
CPCG06F3/0416G06F3/04883
Inventor 李清波史新立康鹏杨猛训
Owner SHANDONG LANBEISITE EDUCATIONAL EQUIP GRP
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