公开(公告)号：US11216113B2

公开(公告)日：2022-01-04

申请号：US16149448

申请日：2018-10-02

Applicant: SITRONIX TECHNOLOGY CORP.

Inventor： Chi Huan Lu ,  Chun Kuan Wu ,  Ching-Jen Tung ,  Hung-Yen Tai

IPC: G06F3/041 ,  G06F3/044

Abstract: The present invention provides a touch circuit, which comprises a detection circuit and an emulation circuit. The detection circuit detects a detection signal; the emulation circuit includes a reference load and receives a signal. The emulation circuit generates an emulation signal according to the reference load and the signal. The touch circuit outputs a touch signal according to the detection signal and the emulation signal.

公开(公告)号：US09864467B2

公开(公告)日：2018-01-09

申请号：US15054143

申请日：2016-02-26

Applicant: Sitronix Technology Corp.

Inventor： Hung-Yen Tai ,  Chun-Kuan Wu ,  Ching-Jen Tung ,  Chen-Yuan Yang

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/044

Abstract: A calibration method for a capacitive sensing device is disclosed. The capacitive sensing device is capable of operating in a self-sensing mode or a mutual-sensing mode. The calibration method includes detecting a capacitance change of a panel in the self-sensing mode to generate a self-sensing output signal, detecting a capacitance change of the panel in the mutual-sensing mode to generate a mutual-sensing output signal, calculating a self-sensing difference between the self-sensing output signal and a self-sensing static parameter, and calibrating the mutual-sensing output signal according to the mutual-sensing output signal and the self-sensing difference.

公开(公告)号：US09264058B1

公开(公告)日：2016-02-16

申请号：US14797192

申请日：2015-07-13

Applicant: Sitronix Technology Corp.

Inventor： Hung-Yen Tai ,  Yao-Sheng Hu

IPC: H03M1/10 ,  H03M1/00 ,  H03M1/46

CPC classification number: H03M1/1009 ,  H03M1/1057 ,  H03M1/468

Abstract: An analog-to-digital converting device includes a converting module for sampling an input voltage according to a plurality of sampling signals, to generate a comparing signal; a control module, for adjusting the plurality of sampling signal according to the comparing signal, to generate a first digital signal corresponding to the input voltage and a plurality of weights; and a calibration module, for adjusting the plurality of sampling signal according to the first digital signal to make the control module generate a second digital signal and for adjusting the plurality of weights according to the first digital signal and the second digital signal; wherein the second digital signal is different from the first digital signal and is corresponding to the plurality of weights.

Abstract translation: 模数转换装置包括：转换模块，用于根据多个采样信号对输入电压进行采样，以产生比较信号; 控制模块，用于根据所述比较信号调整所述多个采样信号，以产生对应于所述输入电压的第一数字信号和多个权重; 以及校准模块，用于根据第一数字信号调整多个采样信号，以使控制模块产生第二数字信号，并根据第一数字信号和第二数字信号调整多个权重; 其中所述第二数字信号与所述第一数字信号不同，并且对应于所述多个权重。

公开(公告)号：US20230400946A1

公开(公告)日：2023-12-14

申请号：US18149684

申请日：2023-01-04

Applicant: SITRONIX TECHNOLOGY CORP.

Inventor： Chen-Yuan Yang ,  Hung-Yen Tai ,  Tzu-Hsuan Liu

IPC: G06F3/041

CPC classification number: G06F3/04182

Abstract: The present application provides a touch sensing circuit, which comprises a plurality of analog front-end circuits, a noise processing circuit, and a compensation circuit. The analog front-end circuits generate a plurality of output signals according to a plurality of sensing signals. The noise processing circuit is coupled to the analog front-end circuits and generates an average noise according to the output signals. The compensation circuit is coupled to the noise processing circuit and compensates the output signals according to the average noise. By applying the touch sensing circuit of the present application, the influence of common-mode noise may be suppressed and the sensitivity of sensing touches may be improved.

公开(公告)号：US20170038868A1

公开(公告)日：2017-02-09

申请号：US15091591

申请日：2016-04-06

Applicant: Sitronix Technology Corp.

Inventor： Hung-Yen Tai ,  Chun-Kuan Wu ,  Ching-Jen Tung

IPC: G06F3/044 ,  G06F3/041

Abstract: A touch detection method for a capacitive sensing device is disclosed. The capacitive sensing device is utilized for detecting capacitance variance of a panel, and a variable capacitor includes a first end electrically coupled to the panel. The touch detection method includes simultaneously providing a first clock signal to a second end of the variable capacitor and providing a second clock signal to the panel; determining a touched region of the panel according to a voltage variance of the first end of the variable capacitor; and generating an output signal utilized for indicating the touched region. Notably, the first clock signal and the second clock signal have opposite phases against each other.

Abstract translation: 公开了一种用于电容式感测装置的触摸检测方法。 电容感测装置用于检测面板的电容变化，并且可变电容器包括电耦合到面板的第一端。 所述触摸检测方法包括同时向所述可变电容器的第二端提供第一时钟信号，并向所述面板提供第二时钟信号; 根据可变电容器的第一端的电压变化确定面板的触摸区域; 并产生用于指示所触摸的区域的输出信号。 值得注意的是，第一时钟信号和第二时钟信号具有彼此相反的相位。

公开(公告)号：US20170024071A1

公开(公告)日：2017-01-26

申请号：US15054143

申请日：2016-02-26

Applicant: Sitronix Technology Corp.

Inventor： Hung-Yen Tai ,  Chun-Kuan Wu ,  Ching-Jen Tung ,  Chen-Yuan Yang

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/044

Abstract: A calibration method for a capacitive sensing device is disclosed. The capacitive sensing device is capable of operating in a self-sensing mode or a mutual-sensing mode. The calibration method includes detecting a capacitance change of a panel in the self-sensing mode to generate a self-sensing output signal, detecting a capacitance change of the panel in the mutual-sensing mode to generate a mutual-sensing output signal, calculating a self-sensing difference between the self-sensing output signal and a self-sensing static parameter, and calibrating the mutual-sensing output signal according to the mutual-sensing output signal and the self-sensing difference.

Abstract translation: 公开了用于电容式感测装置的校准方法。 电容式感测装置能够以自感觉模式或相互感测模式操作。 校准方法包括检测自感模式中面板的电容变化以产生自感输出信号，在互感模式中检测面板的电容变化以产生互感输出信号，计算出 自感应输出信号与自感静态参数之间的自感差异，并根据相互感测输出信号和自感差异校准互感输出信号。

公开(公告)号：US09467159B1

公开(公告)日：2016-10-11

申请号：US14930673

申请日：2015-11-03

Applicant: Sitronix Technology Corp.

Inventor： Hung-Yen Tai

IPC: H03M1/10 ,  H03M1/44

CPC classification number: H03M1/1057 ,  H03M1/468

Abstract: An analog-to-digital converting device includes a converting module, for sampling an analog input voltage according to a plurality of sampling signals to generate a comparing voltage and generating a comparing signal according to the comparing voltage, wherein the converting module comprises a plurality of capacitors and each of the plurality of capacitors couples between one of the plurality sampling signals and the comparing voltage; a control module, for adjusting the plurality of sampling signals according to the comparing signal, to generate a digital signal corresponding to the analog input voltage, wherein a plurality of bits of the digital signal are respectively corresponding to the capacitances of the plurality of capacitors; and a calibration module, for adjusting the capacitances of the plurality of capacitors according to the digital signal.

Abstract translation: 一种模拟 - 数字转换装置包括转换模块，用于根据多个采样信号对模拟输入电压进行采样以产生比较电压并根据比较电压产生比较信号，其中转换模块包括多个 电容器，并且所述多个电容器中的每一个耦合在所述多个采样信号中的一个和所述比较电压之间; 控制模块，用于根据所述比较信号调整所述多个采样信号，以产生对应于所述模拟输入电压的数字信号，其中所述数字信号的多个位分别对应于所述多个电容器的电容; 以及校准模块，用于根据数字信号调整多个电容器的电容。