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Energy-saving method and device for capacitive pen and capacitance pen

An energy-saving device, a technology of a capacitive pen, which is applied to the input/output process of electrical digital data processing, instruments, and data processing, etc., can solve the problems of weak battery life, large power consumption, and inability to meet users' long-term use, etc. The effect of long battery life and power saving

Pending Publication Date: 2020-02-11
北京科加触控技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the capacitive pen needs to send and receive signals frequently and perform a series of processing on the signals during use, the overall power consumption is relatively large, and the battery life is weak. time use needs

Method used

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  • Energy-saving method and device for capacitive pen and capacitance pen
  • Energy-saving method and device for capacitive pen and capacitance pen
  • Energy-saving method and device for capacitive pen and capacitance pen

Examples

Experimental program
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Effect test

Embodiment 1

[0042] Such as figure 1 As shown, the present embodiment proposes a method for energy saving of a capacitive pen, the method comprising:

[0043] S101. Obtain an excitation signal sent by the capacitive screen.

[0044] Specifically, currently common capacitive screens on the market are generally divided into two types: surface capacitive screens and projected capacitive screens, wherein projected capacitive screens are further divided into self-capacitive screens and mutual capacitive screens. Surface capacitive screens and self-capacitive screens are difficult to achieve true multi-touch due to limitations in their structure and working principle. Therefore, the mutual capacitance screen becomes the capacitive screen that more users tend to use. The mutual capacitance screen uses ITO to make horizontal electrodes and vertical electrodes on the glass surface. The difference between it and the self-capacitance screen is that the intersection of two sets of electrodes will fo...

Embodiment 2

[0056] Such as figure 2 As shown, corresponding to Embodiment 1, this embodiment proposes an energy-saving device for a capacitive pen. The device includes a signal acquisition unit and a processor. The signal acquisition unit is used to collect the excitation signal sent by the capacitive screen. A processor configured with processor-executable operational instructions to perform the following operations:

[0057] Obtain the excitation signal sent by the capacitive screen collected by the signal acquisition unit;

[0058] The working state of the capacitive pen is switched from the first working state to the second working state according to the excitation signal.

[0059] Specifically, in this embodiment, a signal collection unit is used to collect the excitation signal sent by the capacitive screen. The signal acquisition unit can be realized by a triode. Such as image 3 As shown, the signal acquisition unit includes a two-stage amplifier circuit and a half-wave shapi...

Embodiment 3

[0062] Such as Figure 4 As shown, this embodiment proposes a capacitor pen, which includes a pen body and a capacitor pen energy-saving device. The pen body includes a pen body and a nib. The nib is arranged at the front end of the pen body. The energy-saving device of the capacitive pen is arranged in the pen body. Wherein, the signal collection unit is arranged near the tip of the pen, and is used to collect the excitation signal sent by the capacitive screen. The processor is used for switching the working state of the pen body according to the excitation signal.

[0063] Specifically, the pen body described in this embodiment is a conventional active capacitive pen or passive capacitive pen structure, which includes a pen body and a pen tip. The nib is arranged at the front end of the pen body. A circuit structure capable of realizing the basic functions of the pen body and an energy-saving device for the capacitive pen are arranged in the pen body. The circuit stru...

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Abstract

The invention provides an energy-saving method for a capacitive pen. The method comprises the following steps: acquiring an excitation signal sent by a capacitive screen; and switching the working state of the capacitance pen from a first working state to a second working state according to the excitation signal, wherein the first working state is the working state of the capacitance pen in an energy-saving mode, and the second working state is the working state of the capacitance pen in a full-power power supply mode. The invention further provides an energy-saving device for the capacitive pen. The characteristic that the capacitive screen can send signals to the outside is fully utilized, and when the signals sent by the capacitive screen can be detected, it can be considered that a user already places the capacitive pen near the capacitive screen and uses the capacitive pen. At the moment, the capacitance pen is switched from the energy-saving mode to the full-power power supply mode, and related functions of the capacitance pen are achieved. Therefore, full-power power supply can be performed only when the capacitance pen is used, the electric energy consumption of the capacitance pen is reduced, and the endurance capability of the capacitance pen for a longer time is realized.

Description

technical field [0001] The present application relates to the field of smart devices, in particular to an energy-saving method and device for a capacitive pen and the capacitive pen. Background technique [0002] With the improvement of the level of technology and the quality of life, more and more smart devices appear in people's daily work and life, and touch devices are one of them. People can directly operate on the display screen by touching the device, without a mouse or other devices for wired or wireless operations, which is convenient and quick. At the same time, writing devices that can write on touch devices also emerged as the times require. By using the writing device, people can freely write on the touch device like using a pen. [0003] Capacitive touch screen is a touch device widely used at present and in the future. The capacitive touch screen only needs to be touched, and does not need pressure to generate a signal. It has the advantages of wear resista...

Claims

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Application Information

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IPC IPC(8): G06F3/0354G06F3/038G06F3/041G06F3/044
CPCG06F3/03545G06F3/0383G06F3/0416G06F3/044
Inventor 吴振宇周广道
Owner 北京科加触控技术有限公司
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