Signal processing method, device, electromagnetic pen and electromagnetic induction system

A signal processing device and signal processing technology, applied in the field of electromagnetic induction system, signal processing of electromagnetic pen, and signal processing device of electromagnetic pen, can solve problems such as linear change, discount of writing experience, difficult pressure of electromagnetic pen, etc., to achieve Stable linear changes, strong anti-interference ability, and improve the effect of writing experience

Active Publication Date: 2022-02-22
BEIJING HANWANG PENGTAI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the analog signal is easily disturbed by the external environment, it is difficult to achieve a stable linear change in the pen pressure of the electromagnetic pen, which will greatly reduce the writing experience. It is very necessary to provide an anti-interference ability of the electromagnetic pen. signal processing method

Method used

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  • Signal processing method, device, electromagnetic pen and electromagnetic induction system
  • Signal processing method, device, electromagnetic pen and electromagnetic induction system
  • Signal processing method, device, electromagnetic pen and electromagnetic induction system

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Embodiment Construction

[0049] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0050] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0051] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0052] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...

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Abstract

The invention discloses a signal processing method and device, an electromagnetic pen and an electromagnetic induction system. The signal processing method includes: obtaining information to be sent by the electromagnetic pen; digitally encoding the information to be sent to obtain corresponding digitally encoded information; For information, the electromagnetic signal generating circuit of the electromagnetic pen is controlled to generate a changing electromagnetic signal, wherein the changing electromagnetic signal is set to represent the information to be sent. The invention provides a technical solution for signal processing, which can control the electromagnetic signal generation circuit to generate changed electromagnetic signals according to the digital coded information, and then realize the transmission of information, thereby improving the anti-interference ability of the electromagnetic pen and ensuring the pen pressure of the electromagnetic pen Presents a stable linear change to improve the writing experience.

Description

technical field [0001] The present invention relates to the technical field of electronic pens, and more specifically, to a signal processing method for an electromagnetic pen, a signal processing device for an electromagnetic pen, an electromagnetic pen, and an electromagnetic induction system. Background technique [0002] The emergence of electromagnetic screen magnetic control technology (electromagnetic touch) has opened a new era of original handwriting handwriting input for us. With the electromagnetic pen on the electromagnetic screen, it can realize the advantages of original handwriting signature and original handwriting text recording. Electromagnetic screen magnetic control Technology has gradually been recognized and accepted by consumers, and its application fields are becoming wider and wider. [0003] In the prior art, there are two electromagnetic touch solutions according to whether the electromagnetic pen has a power supply device, one is a passive electro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/0354G06F3/038G06F3/041G06F3/046
CPCG06F3/03545G06F3/0383G06F3/0414G06F3/0416G06F3/046
Inventor 孙影程慧慧李俊峰
Owner BEIJING HANWANG PENGTAI TECH CO LTD
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