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    Pen for capacitive touch systems
    1.
    发明授权
    Pen for capacitive touch systems 有权

    公开(公告)号：US09817491B2

    公开(公告)日：2017-11-14

    申请号：US14558771

    申请日：2014-12-03

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Thomas J. Rebeschi ,  Craig A. Cordeiro ,  Bernard O. Geaghan

    IPC: G06F3/0354 ,  G06F3/044 ,  G06F3/041

    CPC classification number: G06F3/03545 ,  G06F3/0416 ,  G06F3/044

    Abstract: A pen configured for use with a touch sensor includes a pen tip that is configured to make contact with the touch sensor. The pen body includes an electrically conductive receiver portion and an electrically conductive emitter portion that is electrically insulated and electrostatically shielded from the receiver portion. The pen includes circuitry configured to receive a touch sensor drive signal applied to a drive electrode of the touch sensor through the receiver portion of the pen body. In response to the received signal, the pen circuitry generates a pen drive signal that is phase additive with the touch sensor drive signal and emits the pen drive signal through the emitter portion of the pen body.

    Capacitive-based touch apparatus and method with reduced interference
    4.
    发明授权
    Capacitive-based touch apparatus and method with reduced interference 有权

    公开(公告)号：US10318066B2

    公开(公告)日：2019-06-11

    申请号：US15324369

    申请日：2015-08-05

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Craig A. Cordeiro ,  Thomas J. Rebeschi ,  Bernard O. Geaghan

    IPC: G06F3/041 ,  G06F3/044

    Abstract: A touch-sensitive apparatus includes a touch panel comprising a touch sensitive surface and at least one a drive electrode capacitively coupled to at least one receive electrode. A sense circuit generates a response signal for the receive electrode in response to a drive signal delivered to the drive electrode. A measurement circuit applies a time-varying transfer function to the response signal. The transfer function varies proportionately and synchronously with the response signal. A calibration circuit is used to match the time-varying transfer function to the response signal.

    Touch panels for wide aspect ratio applications
    5.
    发明授权
    Touch panels for wide aspect ratio applications 有权

    公开(公告)号：US09851856B2

    公开(公告)日：2017-12-26

    申请号：US14911104

    申请日：2014-09-23

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Craig A. Cordeiro ,  Thomas J. Rebeschi

    IPC: G06F3/045 ,  G06F3/044 ,  G06F3/041

    CPC classification number: G06F3/044 ,  G06F3/0416

    Abstract: A touch sensitive system includes a touch sensitive area. A plurality of spaced apart first electrodes are disposed in the touch sensitive area and extend continuously along a first direction. A plurality of spaced apart second electrodes are disposed in the touch sensitive area and extend continuously along a different second direction. A plurality of nodes are disposed in the touch sensitive area, each node being defined by corresponding first and second electrodes traversing each other at the node. The touch sensitive system detect a location of a touch applied proximate a node by detecting a change in a coupling capacitance between the corresponding first and second electrodes traversing each other at the node. Each first electrode traverses at least one, but not all, of the second electrodes, and each second electrode traverses at least one, but not all, of the first electrodes.

    Capacitive-based touch apparatus and method therefor, with reduced interference
    6.
    发明授权
    Capacitive-based touch apparatus and method therefor, with reduced interference 有权
    基于电容的触摸装置及其方法，具有减少的干扰

    公开(公告)号：US08890841B2

    公开(公告)日：2014-11-18

    申请号：US13798736

    申请日：2013-03-13

    Applicant: 3M Innovative Properties Company

    Inventor： Thomas J. Rebeschi ,  Craig A. Cordeiro ,  William Farlow

    IPC: G06F3/045 ,  G06F3/044

    CPC classification number: G06F3/044 ,  G06F3/0418 ,  H03K17/9622 ,  H03K2217/960705

    Abstract: A touch-sensitive device that includes a touch surface circuit that facilitates a change in a coupling capacitance in response to a capacitance-altering touches occurring at the touch surface. The device includes a sense circuit that provides a signal, in response thereto, having transient portions for characterizing positive-going transitions towards an upper signal level and negative-going transitions towards a lower signal level. An amplification circuit is then used for amplifying and processing the signals, in response to the time-varying input parameters. The amplification circuit adjusts the gain for the transient portions relative to gain for portions of the response signals between the transient portions, and thereby suppresses RF interference, such as in the form of signal odd and/or even harmonics, to provide a noise filtered output for determining positions of capacitance-altering touches on the touch surface.

    Abstract translation: 一种触敏装置，其包括触摸表面电路，其响应于在触摸表面处发生的电容变化的触摸而促进耦合电容的变化。 该装置包括感测电路，其响应于此提供具有用于表征向上信号电平的正向转变的瞬态部分的信号，并且朝向较低信号电平的负向转变。 然后根据时变输入参数，使用放大电路来放大和处理信号。 放大电路相对于瞬态部分之间的响应信号的部分相对于增益调整瞬态部分的增益，从而抑制RF干扰，例如以信号奇和/或偶次谐波的形式提供噪声滤波输出 用于确定触摸表面上的电容改变触摸的位置。

    PEN FOR CAPACITIVE TOUCH SYSTEMS
    7.
    发明申请
    PEN FOR CAPACITIVE TOUCH SYSTEMS 审中-公开

    公开(公告)号：US20190339795A1

    公开(公告)日：2019-11-07

    申请号：US16514563

    申请日：2019-07-17

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Thomas J. Rebeschi ,  Craig A. Cordeiro ,  Bernard O. Geaghan

    IPC: G06F3/0354 ,  G06F3/044 ,  G06F3/041

    Abstract: A pen configured for use with a touch sensor includes a pen tip that is configured to make contact with the touch sensor. The pen body includes an electrically conductive receiver portion and an electrically conductive emitter portion that is electrically insulated and electrostatically shielded from the receiver portion. The pen includes circuitry configured to receive a touch sensor drive signal applied to a drive electrode of the touch sensor through the receiver portion of the pen body. In response to the received signal, the pen circuitry generates a pen drive signal that is phase additive with the touch sensor drive signal and emits the pen drive signal through the emitter portion of the pen body.

    Pen for capacitive touch systems
    8.
    发明授权
    Pen for capacitive touch systems 有权

    公开(公告)号：US10379633B2

    公开(公告)日：2019-08-13

    申请号：US15727663

    申请日：2017-10-09

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Thomas J. Rebeschi ,  Craig A. Cordeiro ,  Bernard O. Geaghan

    IPC: G06F3/041 ,  G06F3/0354 ,  G06F3/044

    Abstract: A pen configured for use with a touch sensor includes a pen tip that is configured to make contact with the touch sensor. The pen body includes an electrically conductive receiver portion and an electrically conductive emitter portion that is electrically insulated and electrostatically shielded from the receiver portion. The pen includes circuitry configured to receive a touch sensor drive signal applied to a drive electrode of the touch sensor through the receiver portion of the pen body. In response to the received signal, the pen circuitry generates a pen drive signal that is phase additive with the touch sensor drive signal and emits the pen drive signal through the emitter portion of the pen body.

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