Short-circuit detection for touch panels
    1.
    发明授权
    Short-circuit detection for touch panels 有权
    触摸屏短路检测

    公开(公告)号:US08604798B2

    公开(公告)日:2013-12-10

    申请号:US12965170

    申请日:2010-12-10

    IPC分类号: G01R31/28 G01R31/08

    CPC分类号: G06F3/044 G06F3/0416

    摘要: A short circuit detection module for a touch panel includes first and second short circuit detection circuits. The first short circuit detection circuit is coupled to a first conductive line of the touch panel. The first short circuit detection circuit is configured to drive the first conductive line with a first signal having a first logic level. The second short circuit detection circuit is coupled to second, adjacent, conductive line of the touch panel. The second short circuit detection circuit is configured to drive the second conductive line with a second signal having a second logic level that is complementary to the first logic level.

    摘要翻译: 用于触摸面板的短路检测模块包括第一和第二短路检测电路。 第一短路检测电路耦合到触摸面板的第一导电线。 第一短路检测电路被配置为用具有第一逻辑电平的第一信号驱动第一导线。 第二短路检测电路耦合到触摸面板的第二相邻的导电线。 第二短路检测电路被配置为用具有与第一逻辑电平互补的第二逻辑电平的第二信号来驱动第二导线。

    LOW DROP-OUT VOLTAGE REGULATOR
    2.
    发明申请
    LOW DROP-OUT VOLTAGE REGULATOR 有权
    低压降稳压器

    公开(公告)号:US20080007231A1

    公开(公告)日:2008-01-10

    申请号:US11757865

    申请日:2007-06-04

    IPC分类号: G05F1/613

    CPC分类号: G05F1/575

    摘要: A low drop-out DC voltage regulator regulates a voltage from a DC supply and includes: a pass device controllable to maintain a voltage at an output of the regulator and arranged to provide a first current from the DC supply, at least part of said first current being provided to a load coupled to the output of the regulator; and a current regulator coupled to said pass device and to the output of the regulator. The current regulator is arranged to conduct a second current controllable such that the first current through said pass device remains constant irrespective of variations in a load current to said load.

    摘要翻译: 低压差直流电压调节器调节来自直流电源的电压,并且包括:通过装置,其可控制以在调节器的输出端保持电压并被布置成提供来自DC电源的第一电流,所述第一 电流被提供到耦合到调节器的输出的负载; 以及耦合到所述通过装置和调节器的输出的电流调节器。 电流调节器被布置成传导可控的第二电流,使得通过所述通过装置的第一电流保持恒定,而与负载电流的变化无关。

    COMPENSATION FOR VARIATIONS IN A CAPACITIVE SENSE MATRIX
    4.
    发明申请
    COMPENSATION FOR VARIATIONS IN A CAPACITIVE SENSE MATRIX 有权
    电容式感应矩阵中变量的补偿

    公开(公告)号:US20140092050A1

    公开(公告)日:2014-04-03

    申请号:US13629877

    申请日:2012-09-28

    IPC分类号: G06F3/044

    摘要: A readout device for a capacitive sense matrix includes a computer readable storage medium configured to store capacitance data. The capacitance data represents capacitance values of the capacitive sense matrix. The readout device also includes a readout circuit configured to receive a signal from the capacitive sense matrix, the readout circuit being configured based upon the capacitance data. Also described are a readout method and a method of compensating for variations in capacitance.

    摘要翻译: 用于电容性感测矩阵的读出装置包括被配置为存储电容数据的计算机可读存储介质。 电容数据表示电容性感测矩阵的电容值。 读出装置还包括被配置为从电容性感测矩阵接收信号的读出电路,读出电路基于电容数据配置。 还描述了补偿电容变化的读出方法和方法。

    SHORT-CIRCUIT DETECTION FOR TOUCH PANELS
    5.
    发明申请
    SHORT-CIRCUIT DETECTION FOR TOUCH PANELS 有权
    短路电路检测面板

    公开(公告)号:US20120146657A1

    公开(公告)日:2012-06-14

    申请号:US12965170

    申请日:2010-12-10

    IPC分类号: G01R31/28

    CPC分类号: G06F3/044 G06F3/0416

    摘要: A short circuit detection module for a touch panel includes first and second short circuit detection circuits. The first short circuit detection circuit is coupled to a first conductive line of the touch panel. The first short circuit detection circuit is configured to drive the first conductive line with a first signal having a first logic level. The second short circuit detection circuit is coupled to second, adjacent, conductive line of the touch panel. The second short circuit detection circuit is configured to drive the second conductive line with a second signal having a second logic level that is complementary to the first logic level.

    摘要翻译: 用于触摸面板的短路检测模块包括第一和第二短路检测电路。 第一短路检测电路耦合到触摸面板的第一导电线。 第一短路检测电路被配置为用具有第一逻辑电平的第一信号驱动第一导线。 第二短路检测电路耦合到触摸面板的第二相邻的导电线。 第二短路检测电路被配置为用具有与第一逻辑电平互补的第二逻辑电平的第二信号来驱动第二导线。

    ELECTROSTATIC DISCHARGE PROTECTION CIRCUIT
    6.
    发明申请
    ELECTROSTATIC DISCHARGE PROTECTION CIRCUIT 有权
    静电放电保护电路

    公开(公告)号:US20100157493A1

    公开(公告)日:2010-06-24

    申请号:US12343746

    申请日:2008-12-24

    IPC分类号: H02H9/00

    CPC分类号: H01L27/0285

    摘要: An integrated circuit includes an electrostatic discharge (ESD) detection circuit which detects an ESD event and generates an event signal. In response to that event signal, a control circuit controls the operation of a buffer circuit to function in an additional mode wherein the normal differential operation of the buffer circuit is disabled and the buffer circuit is instead configured to form a conduction path between supply rails to discharge the ESD event. Preferably, a plurality of buffer circuits are driven in parallel by the control circuit to function in the additional mode to form parallel discharge paths for the ESD event. Multiple ESD detection circuits may be provided, and any one of those detection circuits can trigger the control circuitry to place all of the buffer circuits in the additional mode.

    摘要翻译: 集成电路包括检测ESD事件并产生事件信号的静电放电(ESD)检测电路。 响应于该事件信号,控制电路控制缓冲电路的操作以其它模式工作,其中禁止缓冲电路的正常差分操作,并且缓冲电路被配置为在电源轨之间形成导通路径 放电ESD事件。 优选地,多个缓冲电路由控制电路并联驱动以在附加模式中起作用以形成ESD事件的并行放电路径。 可以提供多个ESD检测电路,并且这些检测电路中的任何一个可以触发控制电路将所有缓冲电路放置在附加模式中。

    Bootstrap driver
    7.
    发明申请
    Bootstrap driver 有权
    Bootstrap驱动程序

    公开(公告)号:US20050110556A1

    公开(公告)日:2005-05-26

    申请号:US10902502

    申请日:2004-07-29

    申请人: Yannick Guedon

    发明人: Yannick Guedon

    摘要: A bootstrap driver comprises an output stage having an N-type high-side transistor and a low-side transistor, also of the N-type, which are arranged in series between a positive supply terminal and a negative supply terminal. A control circuit of the high-side transistor and a control circuit of the low-side transistor are respectively supplied by a first voltage regulator and a second voltage regulator, which are mutually independent. A recovery diode is connected by its anode to the output of the first voltage regulator and by its cathode to the positive supply terminal, in order to conduct the reverse current of a bootstrap diode when the output of the circuit switches from a low state to a high state.

    摘要翻译: 自举驱动器包括在正电源端子和负电源端子之间串联布置的N型高侧晶体管和N型低压晶体管的输出级。 高侧晶体管的控制电路和低侧晶体管的控制电路分别由相互独立的第一电压调节器和第二电压调节器提供。 恢复二极管通过其阳极连接到第一电压调节器的输出端并且通过其阴极连接到正电源端子,以便当电路的输出从低状态切换到正电源时,引导自举二极管的反向电流 高州

    Device for the control of a circuit for the vertical deflection of a spot scanning a screen

    公开(公告)号:US06590353B2

    公开(公告)日:2003-07-08

    申请号:US10072670

    申请日:2002-02-06

    IPC分类号: H01J2970

    CPC分类号: H04N3/16 H03K4/625 H03K4/696

    摘要: Disclosed is a device to control a circuit for the vertical deflection of a spot scanning a screen, and more particularly a control device whose output amplifier stage works in class D mode at the rate of a switching signal called a first switching signal. The control device has an internal auxiliary supply to generate the overvoltage needed for the fast flyback of the spot. This auxiliary power supply is a switching voltage generation circuit whose switching signal, called a second switching signal, is synchronous with the first switching signal. The present invention has been shown to used advantageously in television screens and/or computer screens.

    Current feedback amplification circuit and associated process
    9.
    发明授权
    Current feedback amplification circuit and associated process 有权
    电流反馈放大电路及相关工艺

    公开(公告)号:US06377126B1

    公开(公告)日:2002-04-23

    申请号:US09587957

    申请日:2000-06-06

    申请人: Yannick Guedon

    发明人: Yannick Guedon

    IPC分类号: H03F304

    CPC分类号: H03F3/3066

    摘要: Electronic circuit comprising a first and a second current mirrors, an upstream active element arranged between an input of the first current mirror and an input of the second current mirror, each current mirror being provided with an output. The circuit comprises a first current source arranged in parallel with the input of the first current mirror and a second current source arranged in parallel with the input of the second current mirror, so that the current delivered to the active element is equal to the output current of each current mirror and that the input current of each current mirror is less than the current delivered to the active element by the input of each current mirror and by the associated current source.

    摘要翻译: 电子电路包括第一和第二电流镜,布置在第一电流镜的输入端和第二电流镜的输入之间的上游有源元件,每个电流镜具有输出。 该电路包括与第一电流镜的输入并联布置的第一电流源和与第二电流镜的输入并联布置的第二电流源,使得传递到有源元件的电流等于输出电流 并且每个电流镜的输入电流小于通过每个电流镜的输入和相关联的电流源传递到有源元件的电流。

    HIGH SIGNAL TO NOISE RATIO CAPACITIVE SENSING ANALOG FRONT-END
    10.
    发明申请
    HIGH SIGNAL TO NOISE RATIO CAPACITIVE SENSING ANALOG FRONT-END 有权
    高信号噪声比电容式传感模拟前端

    公开(公告)号:US20150145801A1

    公开(公告)日:2015-05-28

    申请号:US13619328

    申请日:2012-09-14

    IPC分类号: G06F3/044

    CPC分类号: G06F3/044 G06F3/0416

    摘要: Capacitance sensing circuits and methods are provided. The capacitance sensing circuit includes a capacitance-to-voltage converter configured to receive a signal from a capacitance to be sensed and to provide an output signal representative of the capacitance, an output chopper configured to convert the output signal of the capacitance-to-voltage converter to a sensed voltage representative of the capacitance to be sensed, an analog accumulator configured to accumulate sensed voltages during an accumulation period of NA sensing cycles and to provide an accumulated analog value, an amplifier configured to amplify the accumulated analog value, and an analog-to-digital converter configured to convert the amplified accumulated analog value to a digital value representative of the capacitance to be sensed. The analog accumulator may include a low pass filter having a frequency response to filter wideband noise.

    摘要翻译: 提供电容感测电路和方法。 电容感测电路包括:电容 - 电压转换器,被配置为从要感测的电容接收信号并提供表示电容的输出信号;输出斩波器,被配置为转换电容 - 电压的输出信号 转换器到感测的电压,代表要感测的电容;模拟累加器,被配置为在NA感测周期的累积周期期间累积感测电压并提供累加的模拟值,被配置为放大所累积的模拟值的放大器和模拟 配置为将放大的累积模拟值转换为表示要感测的电容的数字值。 模拟累加器可以包括具有对滤波器宽带噪声的频率响应的低通滤波器。