公开(公告)号：US11693515B2

公开(公告)日：2023-07-04

申请号：US15955019

申请日：2018-04-17

Applicant: SITRONIX TECHNOLOGY CORP.

Inventor： Wang-An Lin ,  Chun-Kuan Wu ,  Chen-Yuan Yang ,  Tsung-Han Tsai

IPC: G06F3/041

CPC classification number: G06F3/04184 ,  G06F3/041

Abstract: The present invention provides a touch module, which comprises a touch panel, an analog front end circuit, and a microcontroller circuit. The touch panel generates a plurality of sensing signals. The analog front end circuit is coupled to the touch panel, generates a state signal, and generates a plurality of touch detecting signals according to the plurality of sensing signals. The microcontroller circuit is coupled to the analog front end circuit, generates one or more touch location signal according to the plurality of touch detecting signals, and enters the next switching state according to the state signal when the switching state is changed.

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：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：US20150378511A1

公开(公告)日：2015-12-31

申请号：US14509069

申请日：2014-10-08

Applicant: Sitronix Technology Corp.

Inventor： Chun-Kuan Wu ,  Ching-Jen Tung ,  Chen-Yuan Yang ,  Chun-Yu Lin

IPC: G06F3/041 ,  G01N27/22 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/044

Abstract: The present disclosure provides a capacitor voltage information sensing circuit. The capacitor voltage information sensing circuit includes a mixer and an analog filter. The mixer includes a first input terminal for receiving a reference signal, a second input terminal for receiving a voltage signal, the voltage signal includes capacitor voltage information and a noise when a touch occurs, a first output terminal for outputting a first differential signal according to the voltage signal and the reference signal, and a second output terminal for outputting a second differential signal according to the voltage signal and the reference signal. The analog filter is coupled to the mixer for generating a first low-frequency signal and a second low-frequency signal according to the first differential signal and second differential signal.

Abstract translation: 本公开提供一种电容器电压信息感测电路。 电容器电压信息感测电路包括混频器和模拟滤波器。 混频器包括用于接收参考信号的第一输入端子，用于接收电压信号的第二输入端子，电压信号包括电容器电压信息和发生触摸时的噪声;第一输出端子，用于根据 电压信号和参考信号，以及第二输出端，用于根据电压信号和参考信号输出第二差分信号。 模拟滤波器耦合到混频器，用于根据第一差分信号和第二差分信号产生第一低频信号和第二低频信号。

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：US20160370941A1

公开(公告)日：2016-12-22

申请号：US14836975

申请日：2015-08-27

Applicant: Sitronix Technology Corp.

Inventor： Chun-Kuan Wu ,  Chen-Yuan Yang ,  Ching-Jen Tung ,  Chun-Yu Lin ,  Wang-An Lin

IPC: G06F3/041

CPC classification number: G06F3/0418

Abstract: A frequency selecting module for a touch system includes a storage unit, for storing a sum of at least one of a plurality of sensing signals of a plurality sensing channels in the touch system; a spectrum calculating unit, for transforming the sum of the at least one of the plurality of sensing signals stored in the storage unit to generate a spectrum data and storing the spectrum data to the storage unit; and a selecting unit, for generating an adjusting signal according to the spectrum data to select one of a plurality of operation frequencies as a working frequency of the plurality of sensing signals.

Abstract translation: 用于触摸系统的频率选择模块包括：存储单元，用于存储触摸系统中多个感测通道的多个感测信号中的至少一个的和; 频谱计算单元，用于变换存储在存储单元中的多个感测信号中的至少一个的和以产生频谱数据并将频谱数据存储到存储单元; 以及选择单元，用于根据所述频谱数据生成调整信号，以选择多个操作频率中​​的一个作为所述多个感测信号的工作频率。

公开(公告)号：US09746962B2

公开(公告)日：2017-08-29

申请号：US14836975

申请日：2015-08-27

Applicant: Sitronix Technology Corp.

Inventor： Chun-Kuan Wu ,  Chen-Yuan Yang ,  Ching-Jen Tung ,  Chun-Yu Lin ,  Wang-An Lin

IPC: G09G3/36 ,  G06F3/041

CPC classification number: G06F3/0418

Abstract: A frequency selecting module for a touch system includes a storage unit, for storing a sum of at least one of a plurality of sensing signals of a plurality sensing channels in the touch system; a spectrum calculating unit, for transforming the sum of the at least one of the plurality of sensing signals stored in the storage unit to generate a spectrum data and storing the spectrum data to the storage unit; and a selecting unit, for generating an adjusting signal according to the spectrum data to select one of a plurality of operation frequencies as a working frequency of the plurality of sensing signals.

公开(公告)号：US09583067B2

公开(公告)日：2017-02-28

申请号：US13650405

申请日：2012-10-12

Applicant: SITRONIX TECHNOLOGY CORP.

Inventor： Chen-Yuan Yang ,  Kuo Ching Yen

IPC: G09G3/36

CPC classification number: G09G3/3685 ,  G09G3/3674 ,  G09G2310/0218 ,  G09G2310/067 ,  G09G2320/0209

Abstract: The LCD device comprises a plurality of scan groups and a plurality of data electrodes; each scan group comprises a plurality of scan electrodes. The driving method comprises the following steps. First the scan driving circuit provides a plurality of scan signals to the plurality of scan electrodes of the plurality of scan groups, respectively. Each scan signal includes at least a select signal, at least a non-select signal, at least a select cycle, and at least a non-select cycle. The select signal is located in the select cycle, while the non-select signal, the non-select cycle. When an Nth scan electrode is located in the select cycle, an (N−1)th or (N+1)th scan electrode of the plurality of scan electrodes is located in the non-select cycle. Then, the data driving circuit provides a data signal to each of the data electrodes according to a plurality of display data for driving the LCD device to display an image by using the plurality of scan signals and the plurality of data signals. Thereby, the imbalance wire coupling effect among scan electrodes can be eliminated and thus improving the display efficiency of the LCD device.

Abstract translation: LCD装置包括多个扫描组和多个数据电极; 每个扫描组包括多个扫描电极。 驱动方法包括以下步骤。 首先，扫描驱动电路分别向多个扫描组的多个扫描电极提供多个扫描信号。 每个扫描信号至少包括一个选择信号，至少一个非选择信号，至少一个选择周期和至少一个非选择周期。 选择信号位于选择周期，而非选择信号，非选择周期。 当第N扫描电极位于选择周期中时，多个扫描电极中的第（N-1）或（N + 1）扫描电极位于非选择周期中。 然后，数据驱动电路根据用于驱动LCD装置的多个显示数据向每个数据电极提供数据信号，以通过使用多个扫描信号和多个数据信号来显示图像。 由此，可以消除扫描电极之间的不平衡线耦合效应，从而提高LCD器件的显示效率。

公开(公告)号：US09524056B2

公开(公告)日：2016-12-20

申请号：US14509069

申请日：2014-10-08

Applicant: Sitronix Technology Corp.

Inventor： Chun-Kuan Wu ,  Ching-Jen Tung ,  Chen-Yuan Yang ,  Chun-Yu Lin

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/044

Abstract: The present disclosure provides a capacitor voltage information sensing circuit. The capacitor voltage information sensing circuit includes a mixer and an analog filter. The mixer includes a first input terminal for receiving a reference signal, a second input terminal for receiving a voltage signal, the voltage signal includes capacitor voltage information and a noise when a touch occurs, a first output terminal for outputting a first differential signal according to the voltage signal and the reference signal, and a second output terminal for outputting a second differential signal according to the voltage signal and the reference signal. The analog filter is coupled to the mixer for generating a first low-frequency signal and a second low-frequency signal according to the first differential signal and second differential signal.

Abstract translation: 本公开提供一种电容器电压信息感测电路。 电容器电压信息感测电路包括混频器和模拟滤波器。 混频器包括用于接收参考信号的第一输入端子，用于接收电压信号的第二输入端子，电压信号包括电容器电压信息和发生触摸时的噪声;第一输出端子，用于根据 电压信号和参考信号，以及第二输出端，用于根据电压信号和参考信号输出第二差分信号。 模拟滤波器耦合到混频器，用于根据第一差分信号和第二差分信号产生第一低频信号和第二低频信号。