Scanning rate control for input components based on user presence detection

    公开(公告)号:US11656678B1

    公开(公告)日:2023-05-23

    申请号:US17588924

    申请日:2022-01-31

    IPC分类号: G06F3/01 G06F1/3231 G06F3/041

    摘要: An electronic device detects a user presence in a first distance range from a user detection sensor of an electronic device. The electronic device communicates with multiple input components, setting the electronic device to a first device state based on detecting a user presence in the first distance range. The first device state applies a scanning rate to a first input component. The electronic device also detects a user presence in a second distance range from the user detection sensor of the electronic device while the electronic device is in the first device state. The electronic device sets the electronic device to a second device state, based on detecting a user presence in the second distance range while the electronic device is in the first device state. The second device state applies a different scanning rate to the first input component than in the first device state.

    Changing a mode of operation of a computing device by a pen device

    公开(公告)号:US11269428B2

    公开(公告)日:2022-03-08

    申请号:US16125752

    申请日:2018-09-09

    摘要: The disclosure herein describes changing a mode of operation of a computing device using signals from a pen device. The pen device obtains gesture input data from at least one sensor of the pen device and the obtained gesture input data is compared to at least one gesture pattern. Based on the gesture input data matching the at least one gesture pattern, the pen device transitions to an active state. The pen device detects, via an electrostatic communication channel, an uplink signal from the computing device and sends a signal to change a mode of operation of the computing device by at least one of a network interface or a communication channel, other than the electrostatic communication channel. Changing modes of operation of a computing device provides a flexible, stream-lined way to enhance the user experience of using a computing device with a pen device (e.g., performing an initial pairing process).

    Field repair recalibration
    3.
    发明授权

    公开(公告)号:US12080253B2

    公开(公告)日:2024-09-03

    申请号:US18051415

    申请日:2022-10-31

    IPC分类号: G09G3/36 G01J1/42 G01J1/44

    摘要: Methods, systems, and computer program products are provided for field repair recalibration. A field repairable device with a field repairable component (e.g., field replaceable unit (FRU)) is recalibrated in the field. A light sensor dependent on one or more optical layers in a display module is recalibrated in the field based at least in part on the properties of a post-repair FRU that replaced a damaged/inoperable pre-repair FRU. A field recalibrator (e.g., in a field repairable device and/or in a field repair device) may be configured to generate an in-field recalibration of a sensor based at least in part on a pre-repair sample generated by the sensor before repair of a field repairable component and a post-repair sample generated by the sensor after repair of the field repairable component.

    Capacitance measuring circuit
    9.
    发明授权

    公开(公告)号:US10656191B2

    公开(公告)日:2020-05-19

    申请号:US15846199

    申请日:2017-12-18

    摘要: In various examples there is a capacitance measurement circuit for measuring capacitance of an electrode. The circuit comprises a charging/discharging circuit part which charges the electrode or discharges the electrode, and a counter which measures a charging measurement being a time taken by the charging/discharging circuit part to charge the electrode between two charging thresholds, and which measures a discharging measurement being a time taken by the charging/discharging circuit part to discharge the electrode between two discharging thresholds. The circuit has a controller configured to control the charging/discharging circuit part and the counter such that a plurality of discharging measurements are obtained and a plurality of charging measurements are obtained. The circuit has an averaging logic which computes the measured capacitance in relation to an average of the measurements. In this way high frequency and low frequency noise is attenuated and fine resolution, high accuracy capacitance measurements are obtained.

    Mitigating display noise for touch and pen sensing

    公开(公告)号:US10338704B2

    公开(公告)日:2019-07-02

    申请号:US15399235

    申请日:2017-01-05

    摘要: A display device includes a display controller and a timing controller to drive frames at a frame rate onto a display. The display device may include sensor circuitry to detect a signal from a pen. The signal from the pen includes a sync signal indicative of a repetition rate of the signal. In one embodiment, the sync signal and the display timer are asynchronous. The sensor circuitry is configured to sense the signal from the pen during sensing windows, where timing of the sensing windows is based on the repetition rate. In one embodiment, the display controller is configured to pause driving a frame onto the display during the sensing windows.