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1. WO2022068574 - ELECTRONIC DEVICE AND CONTROL METHOD THEREFOR, TOUCH SYSTEM, AND CHIP SYSTEM

Publication Number WO/2022/068574
Publication Date 07.04.2022
International Application No. PCT/CN2021/118240
International Filing Date 14.09.2021
IPC
G06F 3/044 2006.1
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
G06F 3/041 2006.1
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
CPC
G06F 3/041
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
G06F 3/044
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
G06F 3/04883
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
048Interaction techniques based on graphical user interfaces [GUI]
0487using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
0488using a touch-screen or digitiser, e.g. input of commands through traced gestures
04883for entering handwritten data, e.g. gestures, text
Applicants
  • 华为技术有限公司 HUAWEI TECHNOLOGIES CO., LTD. [CN]/[CN]
Inventors
  • 胡征远 HU, Zhengyuan
  • 王丰欣 WANG, Fengxin
  • 张家聪 ZHANG, Jiacong
Agents
  • 北京中博世达专利商标代理有限公司 BEIJING ZBSD PATENT&TRADEMARK AGENT LTD.
Priority Data
202011063748.830.09.2020CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) ELECTRONIC DEVICE AND CONTROL METHOD THEREFOR, TOUCH SYSTEM, AND CHIP SYSTEM
(FR) DISPOSITIF ÉLECTRONIQUE ET SON PROCÉDÉ DE COMMANDE, SYSTÈME TACTILE ET SYSTÈME DE PUCE
(ZH) 一种电子设备及其控制方法、触控系统、芯片系统
Abstract
(EN) An electronic device and a control method therefor, a touch system, and a chip system, relating to the technical field of touch, and used for increasing a detection range applicable to floating touch. A touch detection driving circuit (20) in the electronic device (01) inputs a touch excitation signal (S1) to a touch electrode (10), and receives a detection signal of the touch electrode (10); an isolated power supply circuit (30) receives the touch excitation signal (S1) and a primary power supply voltage (Vin), causes a short circuit between a first reference ground (GND1) and a second reference ground (GND2) according to the touch excitation signal (S1) in a non-touch detection phase (P2), stores the primary power supply voltage (Vin), and transmits the primary power supply voltage (Vin) to the touch detection driving circuit (20), and disconnects the first reference ground (GND1) and the second reference ground (GND2), and discharges to the touch detection driving circuit (20) in a touch detection phase (P1); and an alternating-current amplifier circuit (40) receives and amplifies the touch excitation signal (S1) to generate a voltage regulation signal (S2), and transmits the voltage regulation signal (S2) to the second reference ground (GND2), wherein the peak-to-peak value of the voltage regulation signal (S2) is greater than the voltage value of the first reference ground (GND1).
(FR) Dispositif électronique et son procédé de commande, système tactile et système de puce, se rapportant au domaine technique du toucher, et utilisés pour augmenter une plage de détection applicable au toucher flottant. Un circuit d'attaque de détection tactile (20) dans le dispositif électronique (01) entre un signal d'excitation tactile (S1) à une électrode tactile (10), et reçoit un signal de détection de l'électrode tactile (10) ; un circuit d'alimentation électrique isolé (30) reçoit le signal d'excitation tactile (S1) et une tension d'alimentation électrique primaire (Vin), provoque un court-circuit entre une première masse de référence (GND1) et une seconde masse de référence (GND2) en fonction du signal d'excitation tactile (S1) dans une phase de détection non tactile (P2), stocke la tension d'alimentation électrique primaire (Vin), et transmet la tension d'alimentation électrique primaire (Vin) au circuit d'attaque de détection tactile (20), et déconnecte la première masse de référence (GND1) et la seconde masse de référence (GND2), et se décharge vers le circuit d'attaque de détection tactile (20) dans une phase de détection tactile (P1) ; et un circuit amplificateur de courant alternatif (40) reçoit et amplifie le signal d'excitation tactile (S1) pour générer un signal de régulation de tension (S2), et transmet le signal de régulation de tension (S2) à la seconde masse de référence (GND2), la valeur de crête à crête du signal de régulation de tension (S2) étant supérieure à la valeur de tension de la première masse de référence (GND1).
(ZH) 一种电子设备及其控制方法、触控系统、芯片系统,涉及触控技术领域,用于将适用于悬浮触控的检测量程增大。该电子设备(01)中的触控检测驱动电路(20)向触控电极(10)输入触控激励信号(S1),并接收触控电极(10)的检测信号。隔离电源电路(30)接收触控激励信号(S1)和初级电源电压(Vin),根据触控激励信号(S1)在非触控检测阶段(P2),将第一参考地(GND1)与第二参考地(GND2)短接,对初级电源电压(Vin)进行存储,并将初级电源电压(Vin)传输至触控检测驱动电路(20),在触控检测阶段(P1),将第一参考地(GND1)和第二参考地(GND2)断开,并向触控检测驱动电路(20)放电。交流放大电路(40)接收并放大触控激励信号(S1),以生成电压调节信号(S2),将电压调节信号(S2)传输至第二参考地(GND2)。其中,电压调节信号(S2)的峰峰值大于第一参考地(GND1)的电压值。
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