公开(公告)号：US20140320172A1

公开(公告)日：2014-10-30

申请号：US13972995

申请日：2013-08-22

Applicant: ILI TECHNOLOGY CORP.

Inventor： CHENG-CHUNG HSU ,  CHIH-JEN CHENG

IPC: H02M11/00

CPC classification number: H02M11/00 ,  G06F3/044

Abstract: A current-to-voltage converter comprises a gain circuit, a flip circuit, and a chopper circuit. The gain circuit receives an input current, and amplifies the input current to generate an amplified current. The flip circuit receives the amplified current, and uses the amplified current to charge or discharge a capacitor thereof according to a charge signal and a discharge signal, so as to generate an output voltage, wherein before using the amplified current to charge or discharge the capacitor, the flip circuit resets the output voltage respectively to a charge reset voltage and a discharge reset voltage according to a charge reset signal and a discharge reset signal. When the capacitor is charged, the chopper circuit samples and holds the output voltage to generate a recovered voltage. When the capacitor is discharged, the chopper circuit samples, holds, and flips the output voltage to generate the recovered voltage.

Abstract translation: 电流 - 电压转换器包括增益电路，翻转电路和斩波电路。 增益电路接收输入电流，并放大输入电流以产生放大电流。 倒装电路接收放大电流，并使用放大电流根据充电信号和放电信号对其电容器进行充电或放电，以产生输出电压，其中在使用放大电流对电容器进行充电或放电之前 根据电荷复位信号和放电复位信号，翻转电路分别将输出电压复位为电荷复位电压和放电复位电压。 当电容器充电时，斩波电路采样并保持输出电压以产生恢复的电压。 当电容器放电时，斩波电路对输出电压进行采样，保持和翻转以产生恢复的电压。

公开(公告)号：US20150062092A1

公开(公告)日：2015-03-05

申请号：US14093455

申请日：2013-11-30

Applicant: ILI TECHNOLOGY CORP.

Inventor： CHIH-JEN CHENG ,  CHENG-CHUNG HSU

IPC: G06F3/041

CPC classification number: G06F3/0418 ,  G06F2203/04103

Abstract: An exemplary embodiment of the present disclosure illustrates a baseline calibration method for touch panel. Firstly, the baseline calibration method calculates each first differential value associated with each respective transmission electrode through a first-axis calculation procedure. Next, the baseline calibration method calculates each second differential value associated with each respective sensing electrode through a second-axis calculation procedure. Finally, the baseline calibration method calculates a baseline calibration value based on each of the first differential values and each of the respective second differential values calculated.

Abstract translation: 本公开的示例性实施例示出了用于触摸面板的基线校准方法。 首先，基线校准方法通过第一轴计算步骤计算与每个相应的传输电极相关联的每个第一差分值。 接下来，基线校准方法通过第二轴计算程序计算与各个感测电极相关联的每个第二差分值。 最后，基线校准方法基于所计算的每个第一差分值和相应的第二差分值中的每一个来计算基线校准值。

公开(公告)号：US20150029137A1

公开(公告)日：2015-01-29

申请号：US14088761

申请日：2013-11-25

Applicant: ILI TECHNOLOGY CORP.

Inventor： CHIH-JEN CHENG ,  CHENG-CHUNG HSU

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0418

Abstract: A noise compensating touch panel includes a touch module and a signal compensating module. The touch module includes transmission electrodes and sensing electrodes. The signal compensating module has a first input, a second input and an output. The signal compensating module couples to the touch module. The transmission electrodes receive scanning voltage signals sequentially. When the scanning voltage signals sense the touching by object at crossover points of a first transmission electrode and the sensing electrodes, the sensing electrodes provide sensing signals. The sensing signals include the value of a first parasitical capacitor. The second transmission electrode senses the value of a second parasitical capacitor which the second transmission electrode isn't touched by object when the second transmission electrode receives the scanning voltage signals. Then the second transmission electrode provides compensating signals. Signal compensating module receives the sensing signals and the compensating signals separately.

Abstract translation: 噪声补偿触摸面板包括触摸模块和信号补偿模块。 触摸模块包括传输电极和感测电极。 信号补偿模块具有第一输入，第二输入和输出。 信号补偿模块耦合到触摸模块。 发送电极依次接收扫描电压信号。 当扫描电压信号感测在第一传输电极和感测电极的交叉点处的物体的触摸时，感测电极提供感测信号。 感测信号包括第一寄生电容器的值。 第二透射电极感测当第二透射电极接收到扫描电压信号时第二传输电极不被物体接触的第二寄生电容器的值。 然后第二传输电极提供补偿信号。 信号补偿模块分别接收感测信号和补偿信号。