Method and apparatus for detecting a force

    公开(公告)号:US10474273B2

    公开(公告)日:2019-11-12

    申请号:US15694797

    申请日:2017-09-03

    IPC分类号: G06F3/041 G06F3/044

    摘要: The present disclosure provide a method for detecting a force, including: acquiring a plurality of sample data of a first electronic device, where each of the plurality of sample data includes a preset force and raw data of the first electronic device, and the raw data of the first electronic device is obtained by detecting a deformation signal generated by the preset force applied to an input medium of the first electronic device; and determining a fitting function according to the plurality of sample data of the first electronic device, where the fitting function denotes a corresponding relationship between a force applied to the input medium of the first electronic device and detected raw data, and the fitting function is used for a second electronic device to determine a force corresponding to raw data detected when an input medium of the second electronic device is subjected to an acting force.

    Touch detecting method, touch detecting system and touch terminal for touch sensor

    公开(公告)号:US10241632B2

    公开(公告)日:2019-03-26

    申请号:US15700123

    申请日:2017-09-09

    IPC分类号: G06F3/041 G06F3/044

    摘要: The present disclosure relates to a touch technology field, provides a touch detecting method for a touch sensor, the method comprises the following steps: putting the touch sensor into a mutual capacitance mode and a self capacitance mode alternatively, and scanning and detecting the rows and columns of a capacitance array of the touch sensor; when a touch state is preliminarily judged as no touch according to a scanning and detecting result in the mutual capacitance mode, implementing envelopment analysis for data obtained by sampling in the self capacitance mode and determining whether the touch exists in the mutual capacitance mode, updating no reference in the mutual capacitance mode if the touch exists, and updating the reference in the mutual capacitance mode if no touch exists.

    FORCE DETECTION METHOD, APPARATUS AND DEVICE

    公开(公告)号:US20180224995A1

    公开(公告)日:2018-08-09

    申请号:US15942709

    申请日:2018-04-02

    IPC分类号: G06F3/041 G06F3/044 G06F3/045

    摘要: The present invention relates to the field of touch technologies, and provides a force detection method, apparatus and device. The force detection method includes: receiving a deformation caused by external force and identified by at least one sensing electrode, and converting the deformation into a corresponding raw feature value characterized by an electrical signal, wherein the raw feature value corresponds to the force; and calculating force information fed back by the at least one sensing electrode according to the raw feature value of the at least one sensing electrode. With the force detection method, apparatus and device according to the invention, when a plurality of positions is pressed by force, the force information at each position may be accurately acquired. In practice, multi-finger press detection may be implemented on the touch screen by using fewer electrodes, thereby reducing the cost and improving the user experience.

    Method and apparatus for detecting force

    公开(公告)号:US10429982B2

    公开(公告)日:2019-10-01

    申请号:US15694823

    申请日:2017-09-03

    IPC分类号: G06F3/041 G06F3/044

    摘要: The present disclosure provide a method for detecting a force, including: acquiring a plurality of sample data of a first electronic device, where each of the plurality of sample data comprises a preset force and raw data of the first electronic device, the raw data of the first electronic device is obtained by detecting a deformation signal which is generated by applying the preset force on an input medium of the first electronic device; and determining a fitting function according to the plurality of sample data, where the fitting function denotes a corresponding relationship between a force applied to the first electronic device and detected raw data, and the fitting function is for allowing a second electronic device to determine a force corresponding to detected raw data when an input medium of the second electronic device is subjected to an acting force.

    Touch detecting method, touch detecting system and touch terminal for touch sensor

    公开(公告)号:US09798428B2

    公开(公告)日:2017-10-24

    申请号:US14552896

    申请日:2014-11-25

    IPC分类号: G06F3/044 G06F3/041

    CPC分类号: G06F3/044 G06F3/0416

    摘要: The present invention relates to a touch technology field, provides a touch detecting method for a touch sensor, the method comprises the following steps: putting the touch sensor into a mutual capacitance mode and a self capacitance mode alternatively, and scanning and detecting the rows and columns of a capacitance array of the touch sensor; when a touch state is preliminarily judged as a multi-touch according to a scanning and detecting result in the mutual capacitance mode, implementing envelopment analysis for data obtained by sampling in the self capacitance mode, determining whether the touch state in the mutual capacitance mode is a single touch or the multi-touch, outputting one touch coordinate if the touch state is the single touch; and outputting a plurality of touch coordinates if the touch state is the multi-touch. The present invention also provides a touch detecting system and a touch terminal for the touch sensor. The present invention improves the accuracy of a touch detection result of the touch sensor, particularly the accuracy of the detection result for distinguishing whether the touch is the single touch or the multi-touch in the case that the touch control terminal is subjected to a large area touch in a floating state.

    Method for determining change of initial distance of sensing electrode

    公开(公告)号:US10884563B2

    公开(公告)日:2021-01-05

    申请号:US16110655

    申请日:2018-08-23

    摘要: A method for determining a change of an initial distance of a sensing electrode is provided. The method includes: calculating a real-time pressure output by each sensing electrode according to real-time feature data output by each sensing electrode in a touch screen when a pressure is applied on the touch screen and a corresponding relationship between the feature data and the pressure; rectifying the real-time pressure output by each sensing electrode according to prestored relative elastic coefficients at different press positions relative to each sensing electrode; and determining a sensing electrode whose initial distance is changed among all the sensing electrodes according to a difference between the rectified real-time pressures output by different sensing electrodes, to calibrate the corresponding relationship between the feature data and the pressures of the sensing electrode whose initial distance is changed.

    Force detection method, apparatus and device

    公开(公告)号:US10534469B2

    公开(公告)日:2020-01-14

    申请号:US15942709

    申请日:2018-04-02

    摘要: The present invention relates to the field of touch technologies, and provides a force detection method, apparatus and device. The force detection method includes: receiving a deformation caused by external force and identified by at least one sensing electrode, and converting the deformation into a corresponding raw feature value characterized by an electrical signal, wherein the raw feature value corresponds to the force; and calculating force information fed back by the at least one sensing electrode according to the raw feature value of the at least one sensing electrode. With the force detection method, apparatus and device according to the invention, when a plurality of positions is pressed by force, the force information at each position may be accurately acquired. In practice, multi-finger press detection may be implemented on the touch screen by using fewer electrodes, thereby reducing the cost and improving the user experience.

    Noise reduction method and system for touch detection device

    公开(公告)号:US09946378B2

    公开(公告)日:2018-04-17

    申请号:US14038791

    申请日:2013-09-27

    IPC分类号: G06F3/041 G06F3/044

    摘要: Noise reduction method and system for a touch detection device are disclosed. The noise reduction method includes: step A, performing a synchronous sampling on the touch detection nodes in one same group and storing the sampling data; step B, comparing each sampling data against a corresponding reference data to calculate a differential data which, as a detection data, replaces a corresponding original sampling data; step C, calculating statistics of the replacing detection data to screen out valid data to calculate a DC offset component indicative of a noise ingredient; and step D, obtaining noise-filtered detection data by subtracting the DC offset component from each detection data.