公开(公告)号：US20130271446A1

公开(公告)日：2013-10-17

申请号：US13859040

申请日：2013-04-09

Applicant: SITRONIX TECHNOLOGY CORP.

Inventor： JIA-CHI ZHENG

IPC: G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3648 ,  G09G2320/0276 ,  G09G2330/024

Abstract: The present invention provides a driving circuit for display panel, which comprises a power supply circuit and a driving unit. The power supply circuit outputs a driving power supply voltage. The driving unit produces a driving signal according to a data signal and the driving power supply voltage for driving the display panel. In addition, the voltage level of the driving power supply voltage increases to a predetermined level. Thereby, during the process of charging the display panel by the data driving circuit, the driving power supply voltage output by the power supply circuit increases from a low level to a predetermined level for reducing the power consumption of the driving circuit.

Abstract translation: 本发明提供一种用于显示面板的驱动电路，其包括电源电路和驱动单元。 电源电路输出驱动电源电压。 驱动单元根据数据信号和用于驱动显示面板的驱动电源电压产生驱动信号。 此外，驱动电源电压的电压水平增加到预定水平。 由此，在由数据驱动电路对显示面板进行充电的过程中，由电源电路输出的驱动电源电压从低电平增加到预定的电平，以降低驱动电路的功耗。

公开(公告)号：US20130135132A1

公开(公告)日：2013-05-30

申请号：US13682907

申请日：2012-11-21

Applicant: SITRONIX TECHNOLOGY CORP.

Inventor： MING-HUANG LIU ,  WEI-YANG OU

IPC: H03M1/34

CPC classification number: H03M1/34 ,  H03M1/14 ,  H03M1/365 ,  H03M1/60

Abstract: The present invention provides an analog-to-digital converter, which comprises an integration circuit, a threshold signal generating circuit, a main comparison circuit, a sub comparison circuit, a counter, and a decoder. The integration circuit integrates an input signal and produces an integration signal. The threshold signal generating circuit generates a main threshold signal and a plurality of sub threshold signals. The main comparison circuit produces a plurality of main comparison signals according the integration signal and the main threshold signal. The sub comparison circuit produces a plurality of sub comparison signals according to the integration signal and the plurality of sub threshold signals. The counter counts the plurality of main comparison signals and produces a first counting signal. The decoder decodes the plurality of sub comparison signals and produces a second count signal. The first count signal and the second count signal are used for producing a digital signal.

Abstract translation: 本发明提供一种模数转换器，其包括积分电路，阈值信号发生电路，主比较电路，子比较电路，计数器和解码器。 积分电路集成输入信号并产生积分信号。 阈值信号发生电路产生主阈值信号和多个子阈值信号。 主比较电路根据积分信号和主阈值信号产生多个主比较信号。 子比较电路根据积分信号和多个子阈值信号产生多个子比较信号。 计数器对多个主比较信号进行计数，并产生第一计数信号。 解码器对多个子比较信号进行解码，并产生第二计数信号。 第一计数信号和第二计数信号用于产生数字信号。

公开(公告)号：US20130113574A1

公开(公告)日：2013-05-09

申请号：US13664679

申请日：2012-10-31

Applicant: SITRONIX TECHNOLOGY CORP.

Inventor： CHIH-TE HUNG ,  CHENG-CHUNG YEH

IPC: H03L7/00

CPC classification number: H03B5/24 ,  H03K3/011 ,  H03K3/023 ,  H03K3/0322

Abstract: The present invention relates to an oscillating device, which comprises a driving module and an oscillating module. The driving module is used for producing a first driving voltage and a second driving voltage. The oscillating module comprises a first symmetric load circuit, a second symmetric load circuit, and a bias circuit. The first symmetric load circuit and the second symmetric load circuit produce a bias according to the first driving voltage. The bias circuit produces a bias current according to the second driving voltage. The oscillating module produces an oscillating signal according to the first driving voltage and the bias current, where the bias current is proportional to the bias. Thereby, by making the driving signal produced by driving module proportional to the bias of the oscillating module, simple compensation for temperature and process can be performed. Thereby, the frequency can be tuned using a few calibration bits.

Abstract translation: 振动装置技术领域本发明涉及一种振荡装置，其包括驱动模块和振荡模块。 驱动模块用于产生第一驱动电压和第二驱动电压。 振荡模块包括第一对称负载电路，第二对称负载电路和偏置电路。 第一对称负载电路和第二对称负载电路根据第一驱动电压产生偏置。 偏置电路根据第二驱动电压产生偏置电流。 振荡模块根据第一驱动电压和偏置电流产生振荡信号，偏置电流与偏置成正比。 因此，通过使由驱动模块产生的驱动信号与振荡模块的偏置成比例，可以进行温度和处理的简单补偿。 因此，可以使用几个校准位来调谐频率。

公开(公告)号：US08411516B2

公开(公告)日：2013-04-02

申请号：US13044258

申请日：2011-03-09

Applicant: Min-Nan Liao

Inventor： Min-Nan Liao

IPC: G11C11/40

CPC classification number: G11C11/405

Abstract: The present invention relates to a memory cell having a reduced circuit area, which comprises a first transistor, a second transistor, a third transistor, and a fourth transistor. The first transistor is coupled to a readline and controlled by a wordline. The second transistor is coupled between the first transistor and a low-voltage power supply. The third transistor is coupled to the second transistor and controlled by a bitline. The third transistor controls turn-on and cutoff of the second transistor. Besides, the fourth transistor is coupled to the third transistor and a writeline, and is controlled by the wordline. Thereby, according to the present invention, four transistors form a memory cell, and the objective of saving circuit area can be achieved.

Abstract translation: 本发明涉及具有减小的电路面积的存储单元，其包括第一晶体管，第二晶体管，第三晶体管和第四晶体管。 第一个晶体管耦合到读取线并由字线控制。 第二晶体管耦合在第一晶体管和低压电源之间。 第三晶体管耦合到第二晶体管并由位线控制。 第三晶体管控制第二晶体管的导通和截止。 此外，第四晶体管耦合到第三晶体管和写入线，并由字线控制。 因此，根据本发明，四个晶体管形成存储单元，并且可以实现节省电路面积的目的。

公开(公告)号：US08264394B2

公开(公告)日：2012-09-11

申请号：US12852701

申请日：2010-08-09

Applicant: Ming-Huang Liu

Inventor： Ming-Huang Liu

IPC: H03M1/50

CPC classification number: H03M1/56

Abstract: The present invention relates to an analog-to-digital converting circuit, which comprises an integrating circuit, a reference signal generating circuit, a comparator, and a first counting circuit. The integrating circuit integrates an input signal for producing an integration signal. The reference signal generating circuit produces a plurality of reference signals. The comparator receives the integration signal and the plurality of reference signals, and compares the integration signal to the plurality of reference signals sequentially for producing a plurality of comparison signals. The first counting circuit receives the plurality of comparison signals produced by the comparator, and starts to count the plurality of comparison signals for producing a reset signal and resetting the integrating circuit. Because the integrating circuit is not reset once until the comparator produces the plurality of comparison signals, the number of times of resetting the integrating circuit can be reduced, and hence reducing the integral nonlinearity effect. Accordingly, the accuracy of the analog-to-digital converting circuit is enhanced.

Abstract translation: 本发明涉及一种模数转换电路，其包括积分电路，参考信号发生电路，比较器和第一计数电路。 积分电路集成了用于产生积分信号的输入信号。 参考信号发生电路产生多个参考信号。 比较器接收积分信号和多个参考信号，并且依次对积分信号与多个参考信号进行比较，以产生多个比较信号。 第一计数电路接收由比较器产生的多个比较信号，并开始对多个比较信号进行计数以产生复位信号并使积分电路复位。 由于积分电路在比较器产生多个比较信号之前不复位一次，所以可以减少积分电路的复位次数，从而降低积分非线性效应。 因此，提高了模数转换电路的精度。

公开(公告)号：US20110122076A1

公开(公告)日：2011-05-26

申请号：US12835205

申请日：2010-07-13

Applicant: HERMAN

Inventor： HERMAN

IPC: G06F3/041

CPC classification number: G06F3/0428

Abstract: The present invention provides a position detection apparatus for a touch panel. The apparatus includes at least one light source disposed on at least a first edge of the touch panel for illumination of a surface of the touch panel, a first detector disposed on one end of a second edge of the touch panel, and a second detector disposed on the other end of the second edge of the touch panel, wherein each of the first and second detectors comprises a plane mirror reflecting an image from the surface of the touch panel and an image sensor for acquisition of the image from the plane mirror, and a position where a pointer touches the touch panel is determined according to the images acquired by the image sensors of the first and second detectors.

Abstract translation: 本发明提供一种用于触摸面板的位置检测装置。 该装置包括：至少一个光源，设置在触摸面板的至少第一边缘上，用于照明触摸面板的表面;第一检测器，设置在触摸面板的第二边缘的一端;以及第二检测器， 在所述触摸面板的第二边缘的另一端上，其中所述第一和第二检测器中的每一个包括从所述触摸面板的表面反射图像的平面镜和用于从所述平面镜获取所述图像的图像传感器，以及 根据由第一和第二检测器的图像传感器获取的图像来确定指针触摸触摸面板的位置。

公开(公告)号：US20110084711A1

公开(公告)日：2011-04-14

申请号：US12900622

申请日：2010-10-08

Applicant: YU-CHENG CHANG ,  CHUNG-YUAN CHEN

Inventor： YU-CHENG CHANG ,  CHUNG-YUAN CHEN

IPC: G01R27/26

CPC classification number: G01D5/24 ,  G01R27/2605 ,  H03K2217/960705

Abstract: The present invention relates to a capacitance sensing circuit with anti-EMI capability. A filter is coupled to a capacitor under test; receives a plurality of reference signals; and produces a first filter signal and a second filter signal. A difference circuit receives the first and second filter signals; eliminates the common-mode noise in the first and second filter signals; and produces a difference signal. The amplitude of the difference signal is related to the capacitance value of the capacitor under test. Thereby, the purpose of sensing capacitance can be achieved. In addition, by eliminating common-mode noise using the difference circuit, the anti-EMI capability can be achieved. Because the difference circuit can adjust the dynamic range of the output of the filter, the capacitance sensing circuit with anti-EMI capability can achieve capacitance sensing in few clock cycles.

Abstract translation: 本发明涉及具有抗电磁干扰能力的电容感测电路。 滤波器耦合到被测电容器; 接收多个参考信号; 并产生第一滤波器信号和第二滤波器信号。 差分电路接收第一和第二滤波器信号; 消除了第一和第二滤波器信号中的共模噪声; 并产生差分信号。 差分信号的幅度与被测电容器的电容值有关。 因此，可以实现感测电容的目的。 此外，通过使用差分电路消除共模噪声，可以实现抗EMI能力。 由于差分电路可以调节滤波器输出的动态范围，具有抗EMI能力的电容感测电路可以在几个时钟周期内实现电容感测。

公开(公告)号：US07626446B2

公开(公告)日：2009-12-01

申请号：US12029836

申请日：2008-02-12

Applicant: Cheng-Chung Yeh

Inventor： Cheng-Chung Yeh

IPC: G05F1/10

CPC classification number: H02M3/07 ,  H02M2003/076

Abstract: The present invention relates to a charge pump capable of enhancing power efficiency and output voltage, which comprises a pump capacitor, a switching module, a first switch, a first buffer, a first switch, and an output capacitor. The switching module is coupled to a first terminal of the pump capacitor. The first switch is coupled between a second terminal of the pump capacitor and a supply voltage. The first buffer receives a first input signal and produces a control signal for controlling the first switch to turn on or cut off. The level of the first input signal ranges between a first voltage and a second voltage, wherein the first and the second voltages are related to the gate voltage of the first switch. The gate voltage of the first switch is a multiple, which is greater than one, of the supply voltage. Thereby, the impedance of the switch is reduced, and hence the power efficiency of the charge pump, the output voltage level, and the area efficiency of integrated circuits are improved.

Abstract translation: 本发明涉及能够提高功率效率和输出电压的电荷泵，其包括泵电容器，开关模块，第一开关，第一缓冲器，第一开关和输出电容器。 开关模块耦合到泵电容器的第一端子。 第一开关耦合在泵电容器的第二端和电源电压之间。 第一缓冲器接收第一输入信号并产生用于控制第一开关导通或切断的控制信号。 第一输入信号的电平在第一电压和第二电压之间的范围内，其中第一和第二电压与第一开关的栅极电压相关。 第一开关的栅极电压是电源电压的倍数，大于1。 因此，开关的阻抗减小，因此提高了电荷泵的功率效率，输出电压电平和集成电路的面积效率。

公开(公告)号：US20090001953A1

公开(公告)日：2009-01-01

申请号：US11819461

申请日：2007-06-27

Applicant: Wei-Jen Huang

Inventor： Wei-Jen Huang

IPC: G05F1/10 ,  G05F1/00

CPC classification number: G05F1/575

Abstract: The present invention discloses an LDO (Low DropOut) linear voltage regulator, which is based on an NMC (Nested Miller Compensation) architecture and can be capacitor-free, wherein an active resistor is added to the feedback path of the Miller compensation capacitor to increase the controllability of the damping factor, solve the problem of extensively using the output capacitor with a parasitic resistance, and solve the problem that a compromise must be made between the damping factor control and the system loop gain. Further, the present invention utilizes a capacitor-sharing technique to reduce the Miller capacitance required by the entire system and accelerate the stabilization of output voltage without influencing stability.

Abstract translation: 本发明公开了一种基于NMC（嵌套米勒补偿）架构的LDO（Low DropOut）线性稳压器，其可以是无电容的，其中有效电阻被添加到Miller补偿电容器的反馈路径中以增加 阻尼因子的可控性解决了使用具有寄生电阻的输出电容器的问题，并解决了阻尼因子控制和系统环路增益之间必须妥协的问题。 此外，本发明利用电容器共享技术来降低整个系统所需的米勒电容，并且加速输出电压的稳定性而不影响稳定性。

公开(公告)号：US20080278423A1

公开(公告)日：2008-11-13

申请号：US11797860

申请日：2007-05-08

Applicant: Shi-Ming Cheng ,  Huai-Yi Hsu ,  Chin-Wei Chien

Inventor： Shi-Ming Cheng ,  Huai-Yi Hsu ,  Chin-Wei Chien

IPC: G09G3/36

CPC classification number: G09G3/3622 ,  G09G2310/04 ,  G09G2320/0252 ,  G09G2340/06 ,  G09G2340/16

Abstract: A driving method to improve response time of twisted nematic (TN) and super twisted nematic (STN) passive matrix LCDs without increasing graphic memory (GRAM) adopts an over-driving operation principle to convert data of three primary colors to YCbCr data and over-driving YCbCr data. Then compressing, sampling and combining are performed through a video compression standard to further reduce a portion of storage bits of the YCbCr data and over-driving YCbCr data. Through an output frequency doubling circuit an over-driving compensation potential higher or lower than the original output potential is flexibly given N times according to the over-driving Y′Cb′Cr′ data within the update time period of each data bus. Thereby the response time of the LCDs improves without increasing the GRAM and dynamic picture blurring phenomenon also improves.

Abstract translation: 改进扭曲向列（TN）和超扭曲向列（STN）无源矩阵LCD响应时间的驱动方法，不增加图形存储器（GRAM）采用过驱动操作原理，将三原色数据转换为YCbCr数据， 驱动YCbCr数据。 然后通过视频压缩标准执行压缩，采样和组合，以进一步减少YCbCr数据的存储位的一部分和过驱动的YCbCr数据。 通过输出倍频电路，根据每个数据总线的更新时间段内的过驱动Y'Cb'Cr'数据灵活地给出高于或低于原始输出电位的过驱动补偿电位N次。 因此，LCD的响应时间提高而不增加GRAM，并且动态图像模糊现象也改善。