Capacitance detection system and method

A capacitance detection and capacitance value technology, applied in the field of detection, can solve the problems of misjudgment of touch screen, inability to distinguish between conductor and non-conductor of the operator, and poor user experience.

Active Publication Date: 2019-08-16
SHANGHAI AWINIC TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The inventor found that when the capacitive sensor in the existing touch screen is working, no matter whether it is self-capacitance detection or mutual capacitance detection, it can only recognize the touch of the operator, and...

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  • Capacitance detection system and method
  • Capacitance detection system and method

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Embodiment Construction

[0058] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0059] The embodiment of the present invention provides a capacitance detection system, the execution subject of the system may be a processor running on various mobile devices, the system structure diagram of the system is as follows figure 1 shown, including:

[0060] Capacitance sensor 101: used to generate a first sensing capacitance value and a second sensing capacitance value corresponding to the operating command when an operating command is received; ...

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Abstract

The invention discloses a capacitance detection system and method. The system comprises a capacitance sensor and a detection unit, the capacitance sensor is used for generating a first induction capacitance value and a second induction capacitance value when receiving the operation instruction. The detection unit is used for detecting a first induction capacitance value and a second induction capacitance value, calculating the first induction capacitance value and the first fixed capacitance value obtaining a first capacitance variation, calculating a second induction capacitance value and a second fixed capacitance value to obtain a second capacitance variation, determining an operation type corresponding to the operation instruction according to the first capacitance variation and the second capacitance variation, and outputting a control instruction corresponding to the operation type. By applying the system provided by the invention, the induction capacitance value of the capacitive sensor is detected, the induction capacitance value and the fixed capacitance value are calculated to obtain the calculated value, and the operation type of the operation instruction is determined according to the calculated value, so that the misjudgment on the touch screen is avoided, and the man-machine interaction experience of the touch screen is improved.

Description

technical field [0001] The invention relates to the detection field, in particular to a capacitance detection system and method. Background technique [0002] In recent years, the touch screen industry has developed rapidly, and related products have become popular in the market. As a kind of input device, the touch screen allows users to touch and control the displayed objects when using it, which makes human-computer interaction easier. , intuitive and user-friendly. Touch screens are divided into capacitive touch screens and resistive touch screens. Capacitive touch screens are mainly applied to the capacitance detection technology of capacitive sensors. The current capacitance detection technology is divided into self-capacitance detection and mutual capacitance detection. [0003] The inventors have found that when the capacitive sensor in the existing touch screen is working, no matter whether it is self-capacitance detection or mutual capacitance detection, it can on...

Claims

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Application Information

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IPC IPC(8): G06F3/041G06F3/044
CPCG06F3/0418G06F3/044
Inventor 程涛张忠程剑涛杜黎明孙洪军乔永庆
Owner SHANGHAI AWINIC TECH CO LTD
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