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    Selective input signal rejection and modification
    31.
    发明授权
    Selective input signal rejection and modification 有权

    公开(公告)号：US10452174B2

    公开(公告)日：2019-10-22

    申请号：US15489646

    申请日：2017-04-17

    Applicant: Apple Inc.

    Inventor： Wayne Carl Westerman ,  Christopher Tenzin Mullens

    IPC: G06F3/041 ,  G06F3/01 ,  G06F3/0354 ,  G06F3/0488

    Abstract: This application is directed to modifying a sensed velocity at a device (e.g., a clickable trackpad) based on a time-dependent click memory variable (CMV). For example, if a touch having a certain velocity is detected when a selection (pick) button is pressed or released, the velocity can be initially suppressed under the presumption that the movement was inadvertent. However, over time that presumption fades, and the CMV can be used to gradually allow the full velocity of the touch to be recognized, under the new presumption that the movement was intentional.

    Touch detection at bezel edge
    32.
    发明授权
    Touch detection at bezel edge 有权

    公开(公告)号：US10185432B2

    公开(公告)日：2019-01-22

    申请号：US15294401

    申请日：2016-10-14

    Applicant: Apple Inc.

    Inventor： Wayne Carl Westerman ,  Ari Y. Benbasat

    IPC: G06F3/041 ,  G06F3/0488 ,  G06F3/044

    Abstract: This relates to a method of extrapolating proximity information to generate a border column or row of touch nodes (also known as touch pixels) and then fitting an ellipse to the contact patch including the extrapolated border touch nodes. Additionally, a contact can be identified as a thumb based on both its major axis and its distance to an edge of the touch sensing surface.

    Intergrated multi-touch surface having varying sensor granularity
    33.
    发明授权
    Intergrated multi-touch surface having varying sensor granularity 有权

    公开(公告)号：US10025366B2

    公开(公告)日：2018-07-17

    申请号：US15847454

    申请日：2017-12-19

    Applicant: Apple Inc.

    Inventor： Wayne Carl Westerman ,  John Greer Elias ,  Steven P. Hotelling ,  Duncan Robert Kerr

    IPC: G06F3/041 ,  G06F1/32 ,  G06F3/044 ,  G06F3/0488

    Abstract: This relates to an event sensing device that includes an event sensing panel and is able to dynamically change the granularity of the panel according to present needs. Thus, the granularity of the panel can differ at different times of operation. Furthermore, the granularity of specific areas of the panel can also be dynamically changed, so that different areas feature different granularities at a given time. This also relates to panels that feature different inherent granularities in different portions thereof. These panels can be designed, for example, by placing more stimulus and/or data lines in different portions of the panel, thus ensuring different densities of pixels in the different portions. Optionally, these embodiments can also include the dynamic granularity changing features noted above.

    Touch detection using multiple simultaneous stimulation signals
    35.
    发明授权
    Touch detection using multiple simultaneous stimulation signals 有权
    使用多个同时刺激信号进行触摸检测

    公开(公告)号：US09430087B2

    公开(公告)日：2016-08-30

    申请号：US14791145

    申请日：2015-07-02

    Applicant: Apple Inc.

    Inventor： Christoph Horst Krah ,  Steve Porter Hotelling ,  Sean Erik O'Connor ,  Wayne Carl Westerman

    IPC: G06F3/041 ,  G06F3/044

    CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G06F3/041 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/044 ,  G06F2203/04104

    Abstract: The use of multiple stimulation signals having one or more frequencies and one or more phases to generate an image of touch on a touch sensor panel is disclosed. Each of a plurality of sense channels can be coupled to a column in a touch sensor panel and can have one or more mixers. Each mixer in the sense channel can utilize a circuit capable generating a demodulation frequency of a particular frequency. At each of multiple steps, various phases of one or more selected frequencies can be used to simultaneously stimulate the rows of the touch sensor panel, and the one or more mixers in each sense channel can be configured to demodulate the signal received from the column connected to each sense channel using the one or more selected frequencies. After all steps have been completed, the demodulated signals from the one or more mixers can be used in calculations to determine an image of touch for the touch sensor panel at each of the one or more frequencies.

    Abstract translation: 公开了使用具有一个或多个频率和一个或多个相位的多个刺激信号来产生触摸传感器面板上的触摸图像。 多个感测通道中的每一个可以耦合到触摸传感器面板中的列并且可以具有一个或多个混合器。 感测通道中的每个混频器可以利用能够产生特定频率的解调频率的电路。 在多个步骤中的每个步骤中，可以使用一个或多个所选频率的各个相位来同时刺激触摸传感器面板的行，并且每个感测通道中的一个或多个混频器可被配置为解调从连接的列接收的信号 使用一个或多个所选择的频率到每个感测信道。 在完成所有步骤之后，可以在计算中使用来自一个或多个混频器的解调信号，以在一个或多个频率中的每一个处确定触摸传感器面板的触摸图像。

    Storing baseline information in EEPROM
    36.
    发明授权
    Storing baseline information in EEPROM 有权

    公开(公告)号：US09310912B2

    公开(公告)日：2016-04-12

    申请号：US14273403

    申请日：2014-05-08

    Applicant: Apple Inc.

    Inventor： Brian Richards Land ,  Wayne Carl Westerman ,  Steve Porter Hotelling

    IPC: G09G5/00 ,  G06F3/041 ,  G06F3/044

    CPC classification number: G06F3/044 ,  G06F3/041 ,  G06F3/0418 ,  G06F2203/04104 ,  G06F2203/04108

    Abstract: Pre-stored no-touch or no-hover (no-event) sensor output values can initially be used when a sensor panel subsystem is first booted up to establish an initial baseline of sensor output values unaffected by fingers or other objects touching or hovering over the sensor panel during boot-up. This initial baseline can then be normalized so that each sensor generates the same output value for a given amount of touch or hover, providing a uniform response across the sensor panel and enabling subsequent touch or hover events to be more easily detected. After the initial normalization process is complete, the pre-stored baseline can be discarded in favor of a newly captured no-event baseline that may be more accurate than the pre-stored baseline due to temperature or other variations.

    Multi-touch input discrimination
    37.
    发明授权
    Multi-touch input discrimination 有权
    多点触摸输入辨别

    公开(公告)号：US09024906B2

    公开(公告)日：2015-05-05

    申请号：US14444848

    申请日：2014-07-28

    Applicant: Apple Inc.

    Inventor： Wayne Carl Westerman

    IPC: G06F3/042 ,  G06F3/041 ,  G06F3/0488 ,  G06K9/00 ,  G06F3/044

    CPC classification number: G06F3/044 ,  G06F3/041 ,  G06F3/0416 ,  G06F3/0418 ,  G06F3/0421 ,  G06F3/0488 ,  G06F2203/04101 ,  G06F2203/04104 ,  G06K9/00375 ,  G06T7/11

    Abstract: Techniques for identifying and discriminating between different types of contacts to a multi-touch touch-screen device are described. Illustrative contact types include fingertips, thumbs, palms and cheeks. By way of example, thumb contacts may be distinguished from fingertip contacts using a patch eccentricity parameter. In addition, by non-linearly deemphasizing pixels in a touch-surface image, a reliable means of distinguishing between large objects (e.g., palms) from smaller objects (e.g., fingertips, thumbs and a stylus) is described.

    Abstract translation: 描述了用于识别和区分不同类型的触点到多点触摸触摸屏设备的技术。 说明性的接触类型包括指尖，拇指，手掌和脸颊。 作为示例，拇指触点可以使用贴片偏心参数与指尖触点区分开。 此外，通过非线性去加重触摸表面图像中的像素，描述了从较小对象（例如，指尖，拇指和触控笔）区分大对象（例如，手掌）的可靠手段。

    Negative pixel compensation
    38.
    发明授权
    Negative pixel compensation 有权
    负像素补偿

    公开(公告)号：US09013437B2

    公开(公告)日：2015-04-21

    申请号：US14260062

    申请日：2014-04-23

    Applicant: Apple Inc.

    Inventor： Wayne Carl Westerman ,  Sean Erik O'Connor

    IPC: G06F3/041 ,  G06F3/044

    CPC classification number: G06F3/041 ,  G06F3/0418 ,  G06F3/044 ,  G06F2203/04104

    Abstract: Negative pixel compensation in a touch sensor panel is disclosed. The panel can compensate for a negative pixel effect in touch signal outputs due to poor grounding of an object touching the panel. To do so, the panel can reconstruct a captured touch image to remove negative pixel values indicative of the negative pixel effect and compute a composite image from the captured image and the reconstructed image to replace the captured image. In addition or alternatively, the panel can reconstruct a captured touch image to remove negative pixel values indicative of the negative pixel effect and replace the captured image with the reconstructed image.

    Abstract translation: 公开了触摸传感器面板中的负像素补偿。 由于接触面板的物体接地不良，面板可以补偿触摸信号输出中的负像素效应。 为了这样做，面板可以重构捕获的触摸图像以去除指示负像素效应的负像素值，并从捕获的图像和重构图像计算合成图像以替换捕获的图像。 另外或替代地，面板可以重建捕获的触摸图像以去除指示负像素效应的负像素值，并用重构图像替换所捕获的图像。

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