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
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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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