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    TOUCH DETECTION USING MULTIPLE SIMULTANEOUS FREQUENCIES
    11.
    发明申请
    TOUCH DETECTION USING MULTIPLE SIMULTANEOUS FREQUENCIES 有权
    使用多个同时频率的触摸检测

    公开(公告)号：US20130271410A1

    公开(公告)日：2013-10-17

    申请号：US13916357

    申请日：2013-06-12

    Applicant: Apple Inc.

    Inventor： Christoph Horst KRAH ,  Steve Porter HOTELLING ,  Sean Erik O'CONNOR ,  Wayne Carl WESTERMAN

    IPC: G06F3/041

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

    Abstract: The use of multiple stimulation frequencies and 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 multiple 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 selected frequencies can be used to simultaneously stimulate the rows of the touch sensor panel, and the multiple mixers in each sense channel can be configured to demodulate the signal received from the column connected to each sense channel using the selected frequencies. After all steps have been completed, the demodulated signals from the multiple mixers can be used in calculations to determine an image of touch for the touch sensor panel at each frequency.

    Abstract translation: 公开了使用多个刺激频率和相位以在触摸传感器面板上产生触摸图像。 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。 在多个步骤中的每一个步骤中，可以使用选定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多个混频器可以被配置为解调从连接到每个感测通道的列接收的信号，使用 所选频率。 所有步骤完成后，来自多个混音器的解调信号可用于计算，以确定每个频率下触摸传感器面板的触摸图像。

    SELECTIVE REJECTION OF TOUCH CONTACTS IN AN EDGE REGION OF A TOUCH SURFACE
    12.
    发明申请
    SELECTIVE REJECTION OF TOUCH CONTACTS IN AN EDGE REGION OF A TOUCH SURFACE 审中-公开

    公开(公告)号：US20200371688A1

    公开(公告)日：2020-11-26

    申请号：US16993134

    申请日：2020-08-13

    Applicant: Apple Inc.

    Inventor： Wayne Carl WESTERMAN

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

    Abstract: The selective rejection of touch contacts in an edge region of a touch sensor panel is disclosed. In addition, by providing certain exceptions to the rejection of edge contacts, the functionality of the touch sensor panel can be maximized. Contacts in edge bands around the perimeter of a touch sensor panel can be ignored. However, if a contact in the edge band moves beyond a threshold distance or speed, it can be recognized as part of a gesture. To accommodate different finger sizes, the size of the edge band can be modified based on the identification of the finger or thumb. Furthermore, if contacts in the center region of a touch sensor panel track the movement of contacts in the edge band, the contacts in the edge band can be recognized as part of a gesture.

    TOUCH DETECTION USING MULTIPLE SIMULTANEOUS STIMULATION SIGNALS
    13.
    发明申请
    TOUCH DETECTION USING MULTIPLE SIMULTANEOUS STIMULATION SIGNALS 审中-公开

    公开(公告)号：US20200371637A1

    公开(公告)日：2020-11-26

    申请号：US16989771

    申请日：2020-08-10

    Applicant: Apple Inc.

    Inventor： Christoph Horst KRAH ,  Steven Porter HOTELLING ,  Sean Erik O'CONNOR ,  Wayne Carl WESTERMAN

    IPC: G06F3/041 ,  G06F3/044

    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.

    STORING BASELINE INFORMATION IN EEPROM
    14.
    发明申请
    STORING BASELINE INFORMATION IN EEPROM 审中-公开

    公开(公告)号：US20200371624A1

    公开(公告)日：2020-11-26

    申请号：US16993144

    申请日：2020-08-13

    Applicant: Apple Inc.

    Inventor： Brian Richards LAND ,  Wayne Carl WESTERMAN ,  Steve Porter HOTELLING

    IPC: G06F3/044 ,  G06F3/041

    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.

    MULTITOUCH DATA FUSION
    15.
    发明申请
    MULTITOUCH DATA FUSION 审中-公开

    公开(公告)号：US20200042168A1

    公开(公告)日：2020-02-06

    申请号：US16595237

    申请日：2019-10-07

    Applicant: Apple Inc.

    Inventor： Wayne Carl WESTERMAN ,  John Greer ELIAS

    IPC: G06F3/0488 ,  G06F3/038 ,  G06K9/00

    Abstract: A method for performing multi-touch (MT) data fusion is disclosed in which multiple touch inputs occurring at about the same time are received to generating first touch data. Secondary sense data can then be combined with the first touch data to perform operations on an electronic device. The first touch data and the secondary sense data can be time-aligned and interpreted in a time-coherent manner. The first touch data can be refined in accordance with the secondary sense data, or alternatively, the secondary sense data can be interpreted in accordance with the first touch data. Additionally, the first touch data and the secondary sense data can be combined to create a new command.

    SENSOR BASELINE OFFSET ADJUSTMENT
    16.
    发明申请
    SENSOR BASELINE OFFSET ADJUSTMENT 审中-公开

    公开(公告)号：US20190034032A1

    公开(公告)日：2019-01-31

    申请号：US16152326

    申请日：2018-10-04

    Applicant: Apple Inc.

    Inventor： Wayne Carl WESTERMAN

    IPC: G06F3/041 ,  G06T7/33 ,  G06K9/50 ,  G06F3/0488

    Abstract: An image jaggedness filter is disclosed that can be used to detect the presence of ungrounded objects such as water droplets or coins, and delay periodic baseline adjustments until these objects are no longer present. To do otherwise could produce inaccurate normalized baseline sensor output values. The application of a global baseline offset is also disclosed to quickly modify the sensor offset values to account for conditions such as rapid temperature changes. Background pixels not part of any touch regions can be used to detect changes to no-touch sensor output values and globally modify the sensor offset values accordingly. The use of motion dominance ratios and axis domination confidence values is also disclosed to improve the accuracy of locking onto dominant motion components as part of gesture recognition.

    SPEED/POSITIONAL MODE TRANSLATIONS
    17.
    发明申请
    SPEED/POSITIONAL MODE TRANSLATIONS 审中-公开

    公开(公告)号：US20170344213A1

    公开(公告)日：2017-11-30

    申请号：US15681230

    申请日：2017-08-18

    Applicant: Apple Inc.

    Inventor： Wayne Carl WESTERMAN ,  Sean E. O'CONNOR

    IPC: G06F3/0485 ,  G06F3/0488

    CPC classification number: G06F3/0485 ,  G06F3/04883 ,  G06F2203/04808

    Abstract: Gestures for converting from a position control mode to a motion continuation mode are disclosed. A position control mode can be invoked when the user simultaneously places two or more fingers upon a sensor panel. The fingers can then be moved around to effect position control. A motion continuation mode can be invoked when one or more fingers are lifted off (but at least one finger remains in contact with the sensor panel). If the motion continuation mode is invoked, a virtual control ring can be generated, and scrolling of the viewable area or dragging of the cursor or object can continue in a particular direction specified by a velocity vector pointed in the direction of finger movement at the time the motion continuation mode is invoked, and having a magnitude proportional to the velocity of the finger at the time the motion continuation mode was invoked.

    STORING BASELINE INFORMATION IN EEPROM
    20.
    发明申请
    STORING BASELINE INFORMATION IN EEPROM 审中-公开

    公开(公告)号：US20160195964A1

    公开(公告)日：2016-07-07

    申请号：US15070982

    申请日：2016-03-15

    Applicant: Apple Inc.

    Inventor： Brian Richards LAND ,  Wayne Carl WESTERMAN ,  Steve Porter HOTELLING

    IPC: 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.

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