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    CAPACITANCE-TO-VOLTAGE MODULATION CIRCUIT
    1.
    发明申请
    CAPACITANCE-TO-VOLTAGE MODULATION CIRCUIT 审中-公开

    公开(公告)号：US20180052558A1

    公开(公告)日：2018-02-22

    申请号：US15271131

    申请日：2016-09-20

    Applicant: QUALCOMM Incorporated

    Inventor： Bo-Ren WANG ,  Lennart MATHE ,  Sameer WADHWA ,  Nathan ALTMAN ,  Sandeep D'SOUZA

    IPC: G06F3/041 ,  G06K9/00 ,  G06F3/044

    CPC classification number: G06F3/0416 ,  G06F3/044 ,  G06K9/0002 ,  H03K17/955 ,  H03K17/962 ,  H03K2217/960725 ,  H03K2217/96074 ,  H03K2217/960745

    Abstract: The present disclosure describes aspects of a capacitance-to-voltage modulation circuit. In some aspects, the circuit is used in touch sensing. In some aspects, a modulation circuit comprises a first pair of switches having one switch connected between a voltage source and a capacitor, and another switch connected between ground and the input of the circuit. The circuit also includes a second pair of switches having one switch connected between the voltage source and the input of the circuit, and another switch connected between ground and the capacitor. A third pair of the circuit's switches comprise one switch connected between the capacitor and an input of an analog-to-digital converter (ADC) and another switch connected between the input of the circuit and the input of the ADC. The third pair of switches may enable charge sharing of signals modulated by the first and second pairs of switches, a result of which can used to sense touch input based on capacitance at the input of the circuit.

    TECHNIQUES FOR PROVIDING USER INPUT TO A DEVICE
    2.
    发明申请
    TECHNIQUES FOR PROVIDING USER INPUT TO A DEVICE 审中-公开
    用户输入到设备的技术

    公开(公告)号：US20150220169A1

    公开(公告)日：2015-08-06

    申请号：US14610746

    申请日：2015-01-30

    Applicant: QUALCOMM Incorporated

    Inventor： Virginia Walker KEATING ,  Niccolo Andrew PADOVANI ,  Gilad BORNSTEIN ,  Thien LEE ,  Nathan ALTMAN

    IPC: G06F3/0354 ,  G06F3/01

    Abstract: Techniques and apparatus are described for obtaining user input via a stylus configured to serve as an interface for providing user input into a computing device. The computing device may obtain rotation-related information indicative of rotational position or rotational movement of the stylus about a longitudinal axis of the stylus. The computing device may identify an operation in response to the rotation-related information, and perform the identified operation.

    Abstract translation: 描述了用于通过被配置成用作向用户输入提供给计算设备的接口的触笔获得用户输入的技术和装置。 计算设备可以获得指示触针围绕触针的纵向轴线的旋转位置或旋转运动的旋转相关信息。 计算设备可以响应于旋转相关信息识别操作，并且执行所识别的操作。

    DETERMINING RESPONSE TO CONTACT BY HAND WITH REGION OF TOUCHSCREEN
    3.
    发明申请
    DETERMINING RESPONSE TO CONTACT BY HAND WITH REGION OF TOUCHSCREEN 有权
    决定与手机接触的响应

    公开(公告)号：US20160266664A1

    公开(公告)日：2016-09-15

    申请号：US14642553

    申请日：2015-03-09

    Applicant: QUALCOMM Incorporated

    Inventor： Niccolo PADOVANI ,  Gilad BORNSTEIN ,  Nathan ALTMAN

    IPC: G06F3/0354 ,  G06F3/041 ,  G06F3/043

    CPC classification number: G06F3/03545 ,  G06F3/0416 ,  G06F3/043 ,  G06F2203/04101 ,  G06F2203/04104

    Abstract: An apparatus that has a touchscreen, is configured to determine a response to a contact by a hand with a region of the touchscreen, and includes a first means for determining a location of a graphical projection of a digital pen onto the touchscreen, a second means for determining, via an ultrasonic wave, a first angle between a first line along an edge of the touchscreen and a second line along the graphical projection, a third means for determining a distance between the touchscreen and the digital pen, and a fourth means for determining, from the distance, the response to the contact by the hand with the region defined by the location and the first angle.

    Abstract translation: 具有触摸屏的装置被配置为确定由触摸屏的区域的手对联系的响应，并且包括用于确定数字笔在触摸屏上的图形投影的位置的第一装置，第二装置 用于经由超声波确定沿着所述触摸屏的边缘的第一线和沿着所述图形投影的第二线之间的第一角度，用于确定所述触摸屏和所述数字笔之间的距离的第三装置，以及用于 从该距离确定由与位置和第一角度限定的区域的手的接触的响应。

    IN-AIR ULTRASOUND PEN GESTURES
    4.
    发明申请
    IN-AIR ULTRASOUND PEN GESTURES 有权
    空气超声笔

    公开(公告)号：US20150242002A1

    公开(公告)日：2015-08-27

    申请号：US14626198

    申请日：2015-02-19

    Applicant: QUALCOMM Incorporated

    Inventor： Nathan ALTMAN ,  Niccolo PADOVANI ,  Gilad BORNSTEIN

    IPC: G06F3/0354 ,  G06F3/0488 ,  G06F3/043 ,  G06F3/01

    CPC classification number: G06F3/03545 ,  G06F3/017 ,  G06F3/0346 ,  G06F3/043 ,  G06F3/0488 ,  G06F3/04883

    Abstract: Implementations of the technology described herein provide a method for detecting gesture commands using an ultrasonic pen system. The system has a pen and a user device. Detection of gesture commands is based on two-dimensional gestures relative to the screen of a user device, three-dimensional gestures relative to the screen of the user device, roll/rotation around a longitudinal axis of the pen body, and micro-twisting around the longitudinal axis of the pen body. The user device receives the gestures and translates them into commands such as UNDO and BACK.

    Abstract translation: 本文描述的技术的实现提供了一种使用超声波笔系统检测手势命令的方法。 该系统具有笔和用户设备。 手势命令的检测基于相对于用户设备的屏幕的二维手势，相对于用户设备的屏幕的三维手势，围绕笔体的纵轴的滚动/旋转，以及围绕 笔体纵轴。 用户设备接收手势并将其转换为诸如UNDO和BACK之类的命令。

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