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4results about How to "Improve writing experience" patented technology

An infrared touch point positioning solution

The invention discloses an infrared touch point positioning scheme, comprising the following steps: setting the number of scanning directions k and the specific angle of each direction, setting a threshold value t1 of the number of unilaterally blocked light paths, a threshold value t2 of the number of different directions, and a threshold value t3 of the angle of light paths in different directions, performing a frame of scanning, counting the blocked light paths, and if both the X side and the Y side are blocked light paths at the moment, jumping to step S4, otherwise, if only the X side or the Y side is blocked light paths at the moment, the beneficial effects achieved by the invention include: the invention proposes a scheme idea of ​​performing point positioning only according to the X or Y unilateral light paths, and proposes a scheme idea of ​​judging whether to perform point positioning operation according to conditions such as the number of unilaterally blocked light paths and the angle between light paths with different slopes, thereby ensuring the accuracy of the final output point contour and point position, thereby reducing the probability of line breakage in fine pen writing, and at the same time being conducive to reducing the cost of the touch scheme (it can support reducing the number of lamp tubes), thereby achieving the purpose of improving the writing experience.
Owner:BEIJING QLTOUCH DEVICE CO LTD

Pen point pressure sensing structure and electronic pen

The utility model discloses a pen point pressure sensing structure and an electronic pen, and belongs to the technical field of electronic pens, and the pen point pressure sensing structure comprises a pen point assembly which extends in the first direction. The pen cap is provided with a containing space, and at least part of the pen point assembly is located in the containing space. The pressure detection device is located in the containing space and comprises a base plate and a plurality of first pressure sensors, the base plate is connected with the pen point assembly and connected with the inner wall of the pen sleeve, and the first pressure sensors are arranged on the side, facing the pen point, of the base plate and surround the pen point assembly. The first pressure sensor is used for detecting the deformation quantity of the pen point assembly acting on the substrate. The substrate deforms under the acting force of the pen point assembly, the multiple first pressure sensors are used for measuring the deformation quantity of the substrate, and therefore the stress changes of the pen point assembly in multiple directions can be obtained. Through the arrangement, the pressure measurement precision of the pressure detection device can be effectively improved, the pressure expression effect and the pen point stability can be improved, and the writing experience of a user is improved.
Owner:SHENZHEN XINWEI INTELLIGENT TECH CO LTD

Lattice pen lost stroke reason detection method and system based on lightweight convolutional network

The invention relates to the technical field of stroke loss reason detection, in particular to a dot matrix pen stroke loss reason detection method and system based on a lightweight convolutional network, and the method comprises the steps: obtaining real-time writing data, importing the real-time writing data into a trained lightweight convolutional network model, carrying out the feature recognition, obtaining real-time writing features, and carrying out the recognition of the real-time writing features. The real-time writing characteristics comprise a movement track, handheld pressure and a timestamp; the real-time writing features are subjected to visualization processing, a visualization motion trail diagram corresponding to the real-time writing features is obtained, and the visualization motion trail diagram comprises the motion trail of the dot matrix pen in the writing process and the holding pressure at each writing moment; and determining a target stroke loss reason based on the visual motion trail diagram, and feeding back the target stroke loss reason. The method is convenient for improving the timeliness and accuracy of determining the stroke loss reason.
Owner:BEIJING TOGETHER EDUCATION TECH DEV CO LTD