Failsafe pulsed laser driver
    11.
    发明授权

    公开(公告)号:US10193304B2

    公开(公告)日:2019-01-29

    申请号:US15200147

    申请日:2016-07-01

    Abstract: A failsafe pulsed laser driver and method for using the same are disclosed. In one embodiment, an apparatus comprises a laser array having a plurality of lasers; and a laser driver coupled to the laser array, wherein the laser driver comprises a current limiter to provide a maximum current at or below a threshold current of lasers in the laser array or at a current level to meet laser safety requirements under circuit failure conditions; one or more capacitors coupled to current limiter and the laser array, the one or more capacitors to be charged in response to current from the current limiter; and a switch coupled to the one or more capacitors operable to cause current from the one or more capacitors to flow through the laser array.

    Techniques, apparatus, system and method for improved display calibration
    14.
    发明授权
    Techniques, apparatus, system and method for improved display calibration 有权
    用于改进显示校准的技术,装置,系统和方法

    公开(公告)号:US09384709B2

    公开(公告)日:2016-07-05

    申请号:US13930268

    申请日:2013-06-28

    Inventor: Paul Winer

    Abstract: Embodiments of a device, system, method and other techniques are described for improved display calibration. An apparatus for display calibration may comprise, for example an optical waveguide comprising an entrance portion and an exit portion at different locations on a base portion of the apparatus, the optical waveguide to guide light output from a display of the apparatus arranged in a lid portion of the apparatus to a camera arranged in the lid portion of the apparatus and calibration logic at least a portion of which is in hardware, the calibration logic to measure one or more color attributes of the light output from the display and to calibrate one or more parameters of the display based on the measured color attributes. Other embodiments are described.

    Abstract translation: 描述了用于改进显示校准的装置,系统,方法和其它技术的实施例。 用于显示校准的装置可以包括例如光波导,其包括在装置的基部上的不同位置处的入口部分和出口部分,该光波导引导从布置在盖部分中的装置的显示器输出的光 将装置安置在装置的盖部分中的照相机和其至少一部分处于硬件中的校准逻辑,该校准逻辑用于测量从显示器输出的光的一个或多个颜色属性并校准一个或多个 基于测量颜色属性的显示参数。 描述其他实施例。

    Gesture based human computer interaction
    15.
    发明授权
    Gesture based human computer interaction 有权
    手势基于人机交互

    公开(公告)号:US09304597B2

    公开(公告)日:2016-04-05

    申请号:US14127106

    申请日:2013-10-29

    CPC classification number: G06F3/017 G06F3/0481

    Abstract: Apparatus, computer-readable storage medium, and method associated with human computer interaction. In embodiments, a computing device may include a plurality of sensors, including a plurality of light sources and a camera, to create a three dimensional (3-D) interaction region within which to track individual finger positions of a user of the computing device. The light sources and the camera may be complementarily disposed for the camera to capture the finger or hand positions. The computing device may further include a 3-D interaction module configured to analyze the individual finger positions within the 3-D interaction region, the individual finger movements captured by the camera, to detect a gesture based on a result of the analysis, and to execute a user control action corresponding to the gesture detected. Other embodiments may be described and/or claimed.

    Abstract translation: 装置,计算机可读存储介质和与人机交互相关联的方法。 在实施例中,计算设备可以包括多个传感器,包括多个光源和相机,以创建三维(3-D)交互区域,在该区域内跟踪计算设备的用户的各个手指位置。 光源和相机可以互补地设置用于相机捕获手指或手的位置。 计算设备还可以包括3-D交互模块,其被配置为分析3-D交互区域内的各个手指位置,由相机拍摄的各个手指移动,以基于分析的结果来检测手势,以及 执行与检测到的手势相对应的用户控制动作。 可以描述和/或要求保护其他实施例。

    METHODS AND APPARATUS TO CALIBRATE SPATIAL LIGHT MODULATORS

    公开(公告)号:US20210325828A1

    公开(公告)日:2021-10-21

    申请号:US17359151

    申请日:2021-06-25

    Abstract: Methods and apparatus to calibrate spatial light modulators are disclosed. Examples include processor circuitry to execute and/or instantiate instructions to provide a greyscale image to a spatial light modulator (SLM) to define voltages to be applied to individual pixels of the SLM. The voltages associated with pixel values in the greyscale image. The pixel values arranged in a double-slit grating pattern. The SLM to produce an interference pattern based on the double-slit grating pattern. The processor circuitry is to determine a phase difference between first and second gratings of the double-slit grating pattern based on the interference pattern. The processor circuitry is to generate a phase curvature based on the phase difference.

    LED pattern projector for 3D camera platforms

    公开(公告)号:US10656511B2

    公开(公告)日:2020-05-19

    申请号:US16403313

    申请日:2019-05-03

    Abstract: A light pattern projector with a pattern mask to spatially modulate an intensity of a wideband illumination source, such as an LED, and a projector lens to reimage the spatially modulated emission onto regions of a scene that is to be captured with an image sensor. The projector lens may comprise a microlens array (MLA) including a first lenslet to reimage the spatially modulated emission onto a first portion of a scene, and a second lenslet to reimage the spatially modulated emission onto a first portion of a scene. The MLA may have a fly's eye architecture with convex curvature over a diameter of the projector lens in addition to the lenslet curvature. The pattern mask may be an amplitude mask comprising a mask pattern of high and low amplitude transmittance regions. In the alternative, the pattern mask may be a phase mask, such as a refractive or diffractive mask.

    LED pattern projector for 3D camera platforms

    公开(公告)号:US10310362B2

    公开(公告)日:2019-06-04

    申请号:US16024024

    申请日:2018-06-29

    Abstract: A light pattern projector with a pattern mask to spatially modulate an intensity of a wideband illumination source, such as an LED, and a projector lens to reimage the spatially modulated emission onto regions of a scene that is to be captured with an image sensor. The projector lens may comprise a microlens array (MLA) including a first lenslet to reimage the spatially modulated emission onto a first portion of a scene, and a second lenslet to reimage the spatially modulated emission onto a first portion of a scene. The MLA may have a fly's eye architecture with convex curvature over a diameter of the projector lens in addition to the lenslet curvature. The pattern mask may be an amplitude mask comprising a mask pattern of high and low amplitude transmittance regions. In the alternative, the pattern mask may be a phase mask, such as a refractive or diffractive mask.

    FAILSAFE PULSED LASER DRIVER
    20.
    发明申请

    公开(公告)号:US20180006431A1

    公开(公告)日:2018-01-04

    申请号:US15200147

    申请日:2016-07-01

    Abstract: A failsafe pulsed laser driver and method for using the same are disclosed. In one embodiment, an apparatus comprises a laser array having a plurality of lasers; and a laser driver coupled to the laser array, wherein the laser driver comprises a current limiter to provide a maximum current at or below a threshold current of lasers in the laser array or at a current level to meet laser safety requirements under circuit failure conditions; one or more capacitors coupled to current limiter and the laser array, the one or more capacitors to be charged in response to current from the current limiter; and a switch coupled to the one or more capacitors operable to cause current from the one or more capacitors to flow through the laser array.

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