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    Ultrasound-Based Force and Touch Sensing
    43.
    发明申请
    Ultrasound-Based Force and Touch Sensing 审中-公开
    超声波力和触摸感应

    公开(公告)号：US20160062498A1

    公开(公告)日：2016-03-03

    申请号：US14731231

    申请日：2015-06-04

    Applicant: Apple Inc.

    Inventor： Brian Q. Huppi ,  Martin P. Grunthaner ,  John G. Elias ,  Sinan Filiz ,  Steven P. Hotelling

    IPC: G06F3/043 ,  G06F3/044 ,  G06F3/041

    CPC classification number: G06F3/043 ,  G06F1/3287 ,  G06F3/0412 ,  G06F3/0414 ,  G06F3/044 ,  G06F2203/04103 ,  G06F2203/04106 ,  G06F2203/04111 ,  Y02D10/171

    Abstract: A touch input/output device for a computing device. The touch device includes a touch sensor for providing touch location information and a force sensor for providing force of touch information. The touch sensor determines touch location information. The force sensor determines the force of touch information. Both the touch sensor and the force sensor are integrated into a circuit responsive to signals, the signals occurring at discernible times in response to whether the signals are in response to contact or in response to an amount of force. Additionally, the touch device includes a circuit coupled to the touch sensor and to the force sensor, and capable of combining information from the touch sensors and from the force sensors.

    Abstract translation: 一种用于计算设备的触摸输入/输出设备。 触摸装置包括用于提供触摸位置信息的触摸传感器和用于提供触摸力信息的力传感器。 触摸传感器确定触摸位置信息。 力传感器确定触摸信息的力。 触摸传感器和力传感器都响应于信号被集成到电路中，响应于信号是响应于接触还是响应于一定的力量，信号在可识别的时间发生。 此外，触摸装置包括耦合到触摸传感器和力传感器并且能够组合来自触摸传感器和来自力传感器的信息的电路。

    Electronic device with gaze tracking system
    46.
    发明授权
    Electronic device with gaze tracking system 有权

    公开(公告)号：US10379612B1

    公开(公告)日：2019-08-13

    申请号：US15826367

    申请日：2017-11-29

    Applicant: Apple Inc.

    Inventor： Nicolas P. Bonnier ,  William Riedel ,  Jiaying Wu ,  Martin P. Grunthaner ,  Seyed Hesameddin Najafi Shoushtari

    IPC: G06F3/01 ,  G06F3/16 ,  G02B27/01 ,  G02B27/00

    Abstract: An electronic device may have a display and a gaze tracking system. Control circuitry in the electronic device can produce a saliency map in which items of visual interest are identified among content that has been displayed on a display in the electronic device. The saliency map may identify items such as selectable buttons, text, and other items of visual interest. User input such as mouse clicks, voice commands, and other commands may be used by the control circuitry in identifying when a user is gazing on particular items within the displayed content. Information on a user's actual on-screen point of gaze that is inferred using the saliency map information and user input can be compared to measured eye position information from the gaze tracking system to calibrate the gaze tracking system during normal operation of the electronic device.

    Force sensor incorporated into display
    48.
    发明授权
    Force sensor incorporated into display 有权

    公开(公告)号：US10162444B2

    公开(公告)日：2018-12-25

    申请号：US14972041

    申请日：2015-12-16

    Applicant: Apple Inc.

    Inventor： Charley T. Ogata ,  Martin P. Grunthaner ,  Michael B. Wittenberg ,  Peter W. Richards ,  Romain A. Teil ,  Steven P. Hotelling

    IPC: G06F3/041 ,  G06F3/044 ,  G06F1/16 ,  G06F3/0354

    Abstract: A force-sensitive device for electronic device. The force inputs may be detected by measuring changes in capacitance, as measured by surface flex of a device having a flexible touchable surface, causing flex at a compressible gap within the device. A capacitive sensor responsive to changes in distance across the compressible gap. The sensor can be positioned above or below, or within, a display element, and above or below, or within, a backlight unit. The device can respond to bending, twisting, or other deformation, to adjust those zero force measurements. The device can use measure of surface flux that appear at positions on the surface not directly the subject of applied force, such as when the user presses on a part of the frame or a surface without capacitive sensors.

    Self-calibration of force sensors and inertial compensation
    49.
    发明授权
    Self-calibration of force sensors and inertial compensation 有权

    公开(公告)号：US10139959B2

    公开(公告)日：2018-11-27

    申请号：US15038972

    申请日：2013-11-26

    Applicant: Apple Inc.

    Inventor： Christopher J. Butler ,  Martin P. Grunthaner ,  Peter W. Richards ,  Romain A. Teil ,  Sinan Filiz

    IPC: G06F3/041 ,  G01L1/14 ,  G06F1/16 ,  G06F3/044 ,  G01L25/00 ,  G06F3/0346

    Abstract: A method of calibrating a force sensor that includes an input surface and an array of sensing elements. The input has a number of test locations and is deformable under applied force. The force sensor is mounted in a predetermined test orientation. For each test location of the plurality of test locations on the input surface of the force sensor a predetermined test force to the test location. An element calibration value is measured for each sensing element of the array of sensing elements of the force sensor. An (x, y) deformation map of the input surface of the force sensor corresponding to the application of the predetermined test force to the test location is determined based on the measured element calibration values.

    Frustrated total internal reflection and capacitive sensing
    50.
    发明授权
    Frustrated total internal reflection and capacitive sensing 有权

    公开(公告)号：US09891759B2

    公开(公告)日：2018-02-13

    申请号：US13631226

    申请日：2012-09-28

    Applicant: Apple Inc.

    Inventor： Martin P. Grunthaner ,  Peter W. Richards ,  Romain A. Teil ,  Steven P. Hotelling

    IPC: G06F3/044 ,  G06F3/041 ,  G06F3/042

    CPC classification number: G06F3/044 ,  G06F3/0416 ,  G06F3/0421 ,  G06F2203/04105 ,  G06F2203/04106 ,  G06F2203/04109

    Abstract: Detecting force and touch using FTIR and capacitive location. FTIR determines applied force by the user's finger within infrared transmit lines on a touch device. A pattern of such lines determine optical coupling with the touch device. Capacitive sensing can determine (A) where the finger actually touches, so the touch device more accurately infers applied force; (B) whether finger touches shadow each other; (C) as a baseline for applied force; or (D) whether attenuated reflection is due to a current optical coupling, or is due to an earlier optical coupling, such as a smudge on the cover glass. If there is attenuated reflection without actual touching, the touch device can reset a baseline for applied force for the area in which that smudge remains. Infrared transmitters and receivers are positioned where they are not visible to a user, such as below a frame or mask for the cover glass.

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