中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

19 records (took 0.016 seconds)

    REMOTE FEEDBACK TAPPING FOR A TOUCH SENSOR PANEL DRIVING CIRCUIT
    11.
    发明申请
    REMOTE FEEDBACK TAPPING FOR A TOUCH SENSOR PANEL DRIVING CIRCUIT 审中-公开
    用于触摸传感器面板驱动电路的远程反馈接头

    公开(公告)号：US20160231838A1

    公开(公告)日：2016-08-11

    申请号：US14869409

    申请日：2015-09-29

    Applicant: Apple Inc.

    Inventor： Chaohao WANG ,  Yingxuan LI ,  Hung Sheng LIN ,  Paolo SACCHETTO ,  Szu-Hsien LEE ,  Weijun YAO ,  Howard TANG

    IPC: G06F3/044 ,  G06F1/16 ,  H05K1/02 ,  G06F3/041

    Abstract: A system is disclosed. The system can comprise drive circuitry included in a first component of the system, the drive circuitry configured to drive a first touch electrode on a touch sensor panel. The system can also comprise a driving line configured to couple an output of the drive circuitry to the first touch electrode. The system can also comprise a feedback line configured to couple the output of the drive circuitry to an input of the drive circuitry, wherein a first end of the feedback line is coupled to the input of the drive circuitry at the first component, and a second end of the feedback line is configured to be coupled to the output of the drive circuitry at a second component, different from the first component, of the system.

    Abstract translation: 公开了一种系统。 系统可以包括包括在系统的第一部件中的驱动电路，驱动电路被配置为驱动触摸传感器面板上的第一触摸电极。 该系统还可以包括被配置为将驱动电路的输出耦合到第一触摸电极的驱动线。 该系统还可以包括被配置为将驱动电路的输出耦合到驱动电路的输入的反馈线，其中反馈线的第一端耦合到第一部件处的驱动电路的输入，第二 反馈线的端部被配置为在与系统的第一部件不同的第二部件处耦合到驱动电路的输出。

    SIMULTANEOUS SELF- AND MUTUAL CAPACITANCE SENSING
    12.
    发明申请
    SIMULTANEOUS SELF- AND MUTUAL CAPACITANCE SENSING 有权
    同时自检和电容式传感

    公开(公告)号：US20150331535A1

    公开(公告)日：2015-11-19

    申请号：US14279692

    申请日：2014-05-16

    Applicant: Apple Inc.

    Inventor： Yingxuan LI ,  Weijun YAO ,  Hyunwoo Henry NHO ,  Wei Hsin YAO

    IPC: G06F3/041 ,  G06F3/044

    CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0416

    Abstract: A touch controller. The touch controller can include first sense circuitry configured to be coupled to a first electrode on a touch sensor panel, the first sense circuitry configured to sense a first self-capacitance associated with the first electrode, and a first mutual capacitance associated with the first electrode. In some examples, the first sense circuitry can be configured to sense the first self-capacitance and the first mutual capacitance simultaneously. In some examples, the touch controller can further include a first mixer and a second mixer coupled to the first sense circuitry, the first mixer configured to demodulate a first output from the first sense circuitry to extract information about the first self-capacitance from the first output, the second mixer configured to demodulate the first output from the first sense circuitry to extract information about the first mutual capacitance from the first output.

    Abstract translation: 触摸控制器 触摸控制器可以包括被配置为耦合到触摸传感器面板上的第一电极的第一感测电路，被配置为感测与第一电极相关联的第一自电容的第一感测电路和与第一电极相关联的第一互电容 。 在一些示例中，第一感测电路可以被配置为同时感测第一自身电容和第一互电容。 在一些示例中，触摸控制器还可以包括耦合到第一感测电路的第一混频器和第二混频器，第一混频器被配置为解调来自第一感测电路的第一输出，以从第一混频器提取关于第一自身电容的信息 输出，第二混频器被配置为解调来自第一感测电路的第一输出，以从第一输出提取关于第一互电容的信息。

    CHARGE PUMP HAVING AC AND DC OUTPUTS FOR TOUCH PANEL BOOTSTRAPPING AND SUBSTRATE BIASING
    16.
    发明申请
    CHARGE PUMP HAVING AC AND DC OUTPUTS FOR TOUCH PANEL BOOTSTRAPPING AND SUBSTRATE BIASING 有权
    具有触摸屏面板引导和基板偏移的交流和直流输出的充电泵

    公开(公告)号：US20160241139A1

    公开(公告)日：2016-08-18

    申请号：US15043405

    申请日：2016-02-12

    Applicant: Apple Inc.

    Inventor： Weijun YAO ,  David A. STRONKS ,  Hopil BAE ,  Kingsuk BRAHMA ,  Wei Hsin YAO ,  Yafei BI ,  Yingxuan LI

    IPC: H02M3/07 ,  G06F3/044 ,  G06F3/041

    CPC classification number: H02M3/07 ,  G06F1/3262 ,  G06F3/041 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  H01L23/642

    Abstract: A charge pump that can be configured to operate in a first mode and a second mode is disclosed. The charge pump can comprise a charging capacitor coupled to a first node and configured to transfer a first DC voltage to the first node. The charge pump can also comprise a first output node and a second output node coupled to the first node. During the first mode, the first output node can be configured to output a second DC voltage based on the first DC voltage, and the second output node can be configured to output a third DC voltage based on the first DC voltage. During the second mode, the first output node can be configured to output the second DC voltage, and the second output node can be configured to output an AC voltage, the AC voltage being offset by the third DC voltage.

    Abstract translation: 公开了一种可被配置为在第一模式和第二模式下操作的电荷泵。 电荷泵可以包括耦合到第一节点并被配置为将第一DC电压传送到第一节点的充电电容器。 电荷泵还可以包括耦合到第一节点的第一输出节点和第二输出节点。 在第一模式期间，第一输出节点可以被配置为基于第一DC电压输出第二DC电压，并且第二输出节点可以被配置为基于第一DC电压输出第三DC电压。 在第二模式期间，第一输出节点可以被配置为输出第二DC电压，并且第二输出节点可以被配置为输出AC电压，AC电压被第三DC电压偏移。

    SENSE AMPLIFIER STABILIZATION WITH SWITCHED SERIES RESISTOR
    17.
    发明申请
    SENSE AMPLIFIER STABILIZATION WITH SWITCHED SERIES RESISTOR 有权
    感应放大器与开关系列电阻器的稳定性

    公开(公告)号：US20160216836A1

    公开(公告)日：2016-07-28

    申请号：US14606996

    申请日：2015-01-27

    Applicant: APPLE INC.

    Inventor： Weijun YAO ,  Wei Hsin YAO ,  Yingxuan LI

    IPC: G06F3/041 ,  G06F3/047 ,  G09G5/00 ,  G06F3/044

    CPC classification number: G06F3/0418 ,  G06F3/0416 ,  G06F3/044

    Abstract: A sense amplifier can be designed with a series variable resistance circuit to dynamically adjust an input resistance in series with the sense amplifier for stability during the different operating modes. In some examples, a switchable resistor can be switched into the input path of the sense amplifier for stability when required by increased capacitive loading of the sense electrodes, and can be switched out of the input path of the sense amplifier when unnecessary for stability. In some examples, an adjustable resistor can be coupled to and in series with the input of the sense amplifier. The resistance of the adjustable resistor can be tuned to stabilize the sense amplifier during operating modes having increased capacitive loading from the sense electrodes and can be minimized when additional input resistance is unnecessary for stability.

    Abstract translation: 读出放大器可以设计成具有串联可变电阻电路，以便在不同的工作模式下动态地调整与读出放大器串联的输入电阻以获得稳定性。 在一些示例中，当需要增加感测电极的电容负载时，可切换电阻器可以切换到读出放大器的输入路径，以便稳定，并且当不需要稳定性时，可以切换到读出放大器的输入路径。 在一些示例中，可调电阻器可以耦合到读出放大器的输入端并与其串联。 可调节可调电阻器的电阻，以便在具有来自感测电极的增加的电容负载的操作模式期间稳定读出放大器，并且当为了稳定性不需要额外的输入电阻时可以最小化该电阻。

    FREQUENCY INDEPENDENT OFFSET CANCELLATION SCHEME IN TOUCH RECEIVER CHANNEL
    18.
    发明申请
    FREQUENCY INDEPENDENT OFFSET CANCELLATION SCHEME IN TOUCH RECEIVER CHANNEL 有权
    触发接收频道中的频率独立偏移消除方案

    公开(公告)号：US20150227232A1

    公开(公告)日：2015-08-13

    申请号：US14194363

    申请日：2014-02-28

    Applicant: Apple Inc.

    Inventor： Weijun YAO ,  Taif A. Syed ,  Yingxuan Li ,  Ahmad Al-Dahle

    IPC: G06F3/044

    CPC classification number: G06F3/044 ,  G06F3/0418 ,  G06F3/047 ,  G06F2203/04101 ,  G06F2203/04112

    Abstract: A self-capacitance touch sensor panel including a plurality of touch electrodes and one or more sense circuits coupled to the touch electrodes. The touch sensor panel also includes at least one offset cancellation circuit coupled to at least one of the touch electrodes and configured to generate an offset cancellation signal to cancel an offset signal at the at least one touch electrode. In some examples, the offset cancellation signal can be an offset cancellation current to cancel an offset current. In some examples, the offset cancellation circuit comprises a variable resistor, and a magnitude of the offset cancellation current is based on a resistance of the variable resistor. In some examples, each touch electrode is coupled to an offset cancellation circuit. In other examples, a single offset cancellation circuit is shared by a plurality of touch electrodes.

    Abstract translation: 一种自电容式触摸传感器面板，包括多个触摸电极和耦合到触摸电极的一个或多个感测电路。 触摸传感器面板还包括耦合到至少一个触摸电极的至少一个偏移消除电路，并被配置为产生偏移消除信号以抵消在至少一个触摸电极处的偏移信号。 在一些示例中，偏移消除信号可以是消除偏移电流的偏移消除电流。 在一些示例中，偏移消除电路包括可变电阻器，并且偏移消除电流的大小基于可变电阻器的电阻。 在一些示例中，每个触摸电极耦合到偏移消除电路。 在其他示例中，单个偏移消除电路由多个触摸电极共享。

    ORTHOGONAL FREQUENCY SCAN SCHEME IN TOUCH SYSTEM
    19.
    发明申请
    ORTHOGONAL FREQUENCY SCAN SCHEME IN TOUCH SYSTEM 有权
    触发系统中的正交频率扫描方案

    公开(公告)号：US20150109212A1

    公开(公告)日：2015-04-23

    申请号：US14059411

    申请日：2013-10-21

    Applicant: Apple Inc.

    Inventor： Weijun YAO ,  Ahmad AL-DAHLE ,  Yingxuan LI ,  Wei Hsin YAO

    IPC: G06F3/041

    CPC classification number: G06F3/044 ,  G06F3/0416

    Abstract: Systems and processes for stimulating a touch sensor panel using orthogonal frequencies are provided. In one example process, the drive lines of the touch sensor panel can be stimulated with stimulation signals having orthogonal frequencies. The orthogonal frequencies can be separated by a frequency that is inversely proportional to an integration time of the touch sensor panel. The touch signals generated in response to the stimulation signals can be amplified, converted into digital form, demodulated using the orthogonal frequencies, and integrated over the integration time. Integrating the demodulated signals over a length of time that is inversely proportional to the frequency spacing between the orthogonal frequencies reduces or eliminates interference in the touch signals caused by the stimulation signals having different frequencies.

    Abstract translation: 提供了使用正交频率来刺激触摸传感器面板的系统和过程。 在一个示例性过程中，可以用具有正交频率的刺激信号来刺激触摸传感器面板的驱动线。 正交频率可以与与触摸传感器面板的积分时间成反比的频率分开。 响应于刺激信号产生的触摸信号可以被放大，转换成数字形式，使用正交频率进行解调，并在积分时间内积分。 在与正交频率之间的频率间隔成反比的时间长度上整合解调信号减少或消除由具有不同频率的刺激信号引起的触摸信号中的干扰。

Patent Agency Ranking