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    Systems and methods for detection and/or correction of pixel luminosity and/or chrominance response variation in displays
    3.
    发明授权
    Systems and methods for detection and/or correction of pixel luminosity and/or chrominance response variation in displays 有权

    公开(公告)号：US10553142B2

    公开(公告)日：2020-02-04

    申请号：US15239982

    申请日：2016-08-18

    Applicant: VALVE CORPORATION

    Inventor： Jeremy Selan

    IPC: G09G3/20

    Abstract: Methods and systems are disclosed for measuring pixel-by-pixel luminosity and/or chrominance variations on a display, encoding and/or storing the measurements as a set of global and/or pixel-by-pixel correction factors, and/or digitally manipulating imagery with the inverse effect as the measured variations, such that the appearance of visual artifacts caused by the variations is reduced. These methods and systems may be used, for example, as part of the production process for virtual reality headsets, as well as in other applications that make high-fidelity use of displays exhibiting such artifacts (e.g., cell phones, watches, augmented reality displays, and the like).

    Display with adjustable duty cycle for individual color channels
    5.
    发明授权
    Display with adjustable duty cycle for individual color channels 有权

    公开(公告)号：US10997946B2

    公开(公告)日：2021-05-04

    申请号：US15786871

    申请日：2017-10-18

    Applicant: VALVE CORPORATION

    Inventor： Jeremy Selan ,  Montgomery V. Goodson

    IPC: G09G5/02 ,  G09G3/34 ,  G09G3/3208 ,  G09G3/20 ,  G09G3/32

    Abstract: Methods and systems relating generally to information displays, and more particularly to systems and methods for setting or dynamically adjusting the illumination pulses of a display or portions of a display on an individual color channel (typically R, G, B) basis. The illumination pulses may be adjusted for a plurality of frames at once, or on a frame by frame basis. The illumination pulses may be controlled for an entire image frame, or the illumination pulse may be controlled on a finer basis, for instance on separate areas or sub-regions of a display. Such adjustments can lead to improved sharpness, brightness, or useable lifetime of the display, and can eliminate or reduce discrepancies of visual artifacts in the visual field by providing separate or variable duty cycle capability on an individual color channel basis to the display for use in combination with display images, particularly for use with close-eye display orientations such as those used in augmented reality or virtual reality applications.

    DISPLAY WITH ADJUSTABLE DUTY CYCLE FOR INDIVIDUAL COLOR CHANNELS
    6.
    发明申请
    DISPLAY WITH ADJUSTABLE DUTY CYCLE FOR INDIVIDUAL COLOR CHANNELS 审中-公开

    公开(公告)号：US20190114991A1

    公开(公告)日：2019-04-18

    申请号：US15786871

    申请日：2017-10-18

    Applicant: VALVE CORPORATION

    Inventor： Jeremy Selan ,  Montgomery V. Goodson

    IPC: G09G5/02 ,  G09G3/20

    Abstract: Methods and systems relating generally to information displays, and more particularly to systems and methods for setting or dynamically adjusting the illumination pulses of a display or portions of a display on an individual color channel (typically R, G, B) basis. The illumination pulses may be adjusted for a plurality of frames at once, or on a frame by frame basis. The illumination pulses may be controlled for an entire image frame, or the illumination pulse may be controlled on a finer basis, for instance on separate areas or sub-regions of a display. Such adjustments can lead to improved sharpness, brightness, or useable lifetime of the display, and can eliminate or reduce discrepancies of visual artifacts in the visual field by providing separate or variable duty cycle capability on an individual color channel basis to the display for use in combination with display images, particularly for use with close-eye display orientations such as those used in augmented reality or virtual reality applications.

    Systems and methods for detection and/or correction of pixel luminosity and/or chrominance response variation in displays
    7.
    发明授权
    Systems and methods for detection and/or correction of pixel luminosity and/or chrominance response variation in displays 有权

    公开(公告)号：US10540921B2

    公开(公告)日：2020-01-21

    申请号：US16277693

    申请日：2019-02-15

    Applicant: Valve Corporation

    Inventor： Jeremy Selan

    IPC: G09G3/20

    Abstract: Methods and systems are disclosed for measuring pixel-by-pixel luminosity and/or chrominance variations on a display, encoding and/or storing the measurements as a set of global and/or pixel-by-pixel correction factors, and/or digitally manipulating imagery with the inverse effect as the measured variations, such that the appearance of visual artifacts caused by the variations is reduced. These methods and systems may be used, for example, as part of the production process for virtual reality headsets, as well as in other applications that make high-fidelity use of displays exhibiting such artifacts (e.g., cell phones, watches, augmented reality displays, and the like).

    POSITIONAL TRACKING SYSTEMS AND METHODS
    8.
    发明申请
    POSITIONAL TRACKING SYSTEMS AND METHODS 审中-公开
    位置跟踪系统和方法

    公开(公告)号：US20160131761A1

    公开(公告)日：2016-05-12

    申请号：US14937844

    申请日：2015-11-10

    Applicant: VALVE CORPORATION

    Inventor： ALAN YATES ,  Jeremy Selan

    IPC: G01S17/58 ,  G01S17/42

    CPC classification number: G01S1/70 ,  G01S7/481 ,  G01S7/4917

    Abstract: Optical positional tracking systems that may be used in virtual reality (VR)/augmented reality (AR) applications are described. Exemplary implementations comprise one or more receivers and one or more transmitters. Exemplary transmitters contains two orthogonal rotors that each emit a fan-shaped laser beam. Each beam is swept as the rotors are spun at constant speed. Exemplary optical receivers can be relatively small, and mounted at convenient locations on the VR display. These receivers consist of small optical detectors that may be mounted on head-mounted VR displays. Exemplary systems determine position by measuring the time at which each swept beam crosses each receiver/detector.

    Abstract translation: 描述了可用于虚拟现实（VR）/增强现实（AR）应用中的光学位置跟踪系统。 示例性实现包括一个或多个接收器和一个或多个发射器。 示例性发射器包含两个正交的转子，每个发射扇形激光束。 当转子以恒定速度旋转时，每个梁都被扫掠。 示例性光接收器可以相对较小，并且安装在VR显示器上的方便位置。 这些接收器由可安装在头戴式VR显示器上的小型光学检测器组成。 示例性系统通过测量每个扫描光束穿过每个接收器/检测器的时间来确定位置。

    Positional tracking systems and methods
    9.
    发明授权
    Positional tracking systems and methods 有权

    公开(公告)号：US10338186B2

    公开(公告)日：2019-07-02

    申请号：US14937844

    申请日：2015-11-10

    Applicant: VALVE CORPORATION

    Inventor： Alan Yates ,  Jeremy Selan

    IPC: G01S1/70 ,  G01S7/481

    Abstract: Optical positional tracking systems that may be used in virtual reality (VR)/augmented reality (AR) applications are described. Exemplary implementations comprise one or more receivers and one or more transmitters. Exemplary transmitters contains two orthogonal rotors that each emit a fan-shaped laser beam. Each beam is swept as the rotors are spun at constant speed. Exemplary optical receivers can be relatively small, and mounted at convenient locations on the VR display. These receivers consist of small optical detectors that may be mounted on head-mounted VR displays. Exemplary systems determine position by measuring the time at which each swept beam crosses each receiver/detector.

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