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1. WO2020087335 - NOISE REDUCTION METHOD, TOUCH DISPLAY DEVICE, AND COMPUTER-READABLE STORAGE MEDIUM

Publication Number WO/2020/087335
Publication Date 07.05.2020
International Application No. PCT/CN2018/112952
International Filing Date 31.10.2018
IPC
G06F 3/044 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01Input arrangements or combined input and output arrangements for interaction between user and computer
03Arrangements for converting the position or the displacement of a member into a coded form
041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
044by capacitive means
CPC
G06F 3/0418
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01Input arrangements or combined input and output arrangements for interaction between user and computer
03Arrangements for converting the position or the displacement of a member into a coded form
041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
0416Control or interface arrangements specially adapted for digitisers
0418for error correction or compensation, e.g. based on parallax, calibration or alignment
G06F 3/0446
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01Input arrangements or combined input and output arrangements for interaction between user and computer
03Arrangements for converting the position or the displacement of a member into a coded form
041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
044by capacitive means
0446using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
Applicants
  • 深圳市汇顶科技股份有限公司 SHENZHEN GOODIX TECHNOLOGY CO.,LTD. [CN]/[CN]
Inventors
  • 陈曦 CHEN, Xi
Agents
  • 上海晨皓知识产权代理事务所(普通合伙) SHANGHAI CHENHAO INTELLECTUAL PROPERTY LAW FIRM GENERAL PARTNERSHIP
Priority Data
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) NOISE REDUCTION METHOD, TOUCH DISPLAY DEVICE, AND COMPUTER-READABLE STORAGE MEDIUM
(FR) PROCÉDÉ DE RÉDUCTION DE BRUIT, DISPOSITIF D'AFFICHAGE TACTILE ET SUPPORT DE STOCKAGE LISIBLE PAR ORDINATEUR
(ZH) 降噪方法、触控显示装置和计算机可读存储介质
Abstract
(EN)
A noise reduction method, a touch display device, and a computer-readable storage medium. The noise reduction method is applied in a touch display device which is provided with multiple touch detection nodes, and comprises: obtaining noise data of each touch detection node (101); obtaining a feature value according to the noise data (102); fitting the noise data of a target node and the feature value to obtain a fit function having the feature value as an independent variable and the noise data of the target node as a dependent variable (103), wherein the target noise is a touch detection node requiring noise reduction; substituting the feature value into the fit function to obtain fit data corresponding to the feature value (104); and using the difference between the fit data and the noise data of the target node as noise-reduced data (105). Hardware costs are reduced, influences from fixed sampling frequency limitation are avoided, and noise interference of a non-direct current component can be filtered out.
(FR)
L’invention concerne un procédé de réduction de bruit, un dispositif d'affichage tactile et un support de stockage lisible par ordinateur. Le procédé de réduction de bruit est appliqué dans un dispositif d'affichage tactile qui est pourvu de multiples nœuds de détection tactile et comprend : l'obtention de données de bruit de chaque nœud de détection tactile (101) ; l'obtention d'une valeur de caractéristique en fonction des données de bruit (102) ; l'ajustement des données de bruit d'un nœud cible et de la valeur de caractéristique pour obtenir une fonction d'ajustement ayant la valeur de caractéristique en tant que variable indépendante et des données de bruit du nœud cible en tant que variable dépendante (103), le bruit cible étant un nœud de détection tactile nécessitant une réduction de bruit ; le remplacement de la valeur de caractéristique dans la fonction d'ajustement pour obtenir des données d'ajustement correspondant à la valeur de caractéristique (104) ; et l'utilisation de la différence entre les données d'ajustement et les données de bruit du nœud cible en tant que données à bruit réduit (105). Les coûts matériels sont réduits, les influences de la limitation de fréquence d'échantillonnage fixe sont évitées et l'interférence de bruit d'une composante non continue peut être filtrée.
(ZH)
一种降噪方法、触控显示装置和计算机可读存储介质。降噪方法,应用于触控显示装置,触控显示装置上设置有若干触摸检测节点,包括:获取各触摸检测节点的噪声数据(101);根据噪声数据获取特征值(102);对目标节点的噪声数据和特征值进行拟合处理,得到以特征值为自变量,以目标节点的噪声数据为因变量的拟合函数(103);目标节点为待降噪的触摸检测节点;将特征值代入拟合函数,得到与特征值对应的拟合数据(104);将拟合数据和目标节点的噪声数据的差值,作为降噪后的数据(105)。降低了硬件成本,无需受固定采样频率限制的影响,而且可对非直流分量的噪声干扰进行滤除。
Also published as
EP2018917574
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