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    PRESENCE DETECTION DEVICE
    1.
    发明申请
    PRESENCE DETECTION DEVICE 审中-公开
    存在检测装置

    公开(公告)号：US20130201347A1

    公开(公告)日：2013-08-08

    申请号：US13759866

    申请日：2013-02-05

    Applicant: STMicroelectronics (Rousset) SAS ,  STMicroelectronics, Inc.

    Inventor： David Coulon ,  Darin K. Winterton

    IPC: H04N5/232

    CPC classification number: H04N5/23296 ,  G06F3/017 ,  G06K9/209

    Abstract: A user presence detection device includes a camera module with a silicon-based image sensor adapted to capture an image and a processing device configured to process the image to detect the presence of a user. The camera module further includes a light filter having a lower cut-off wavelength of between 550 nm and 700 nm and a higher cut-off wavelength of between 900 nm and 1100 nm.

    Abstract translation: 用户存在检测装置包括具有适于捕获图像的硅基图像传感器的相机模块和被配置为处理图像以检测用户的存在的处理装置。 相机模块还包括具有550nm至700nm之间的较低截止波长和900nm至1100nm之间的较高截止波长的滤光器。

    Glass detection with time of flight sensor
    4.
    发明授权
    Glass detection with time of flight sensor 有权

    公开(公告)号：US10594920B2

    公开(公告)日：2020-03-17

    申请号：US15624368

    申请日：2017-06-15

    Applicant: STMicroelectronics, Inc.

    Inventor： Xiaoyong Yang ,  Darin K. Winterton ,  Arnaud Deleule

    IPC: G01S17/48 ,  H04N5/232 ,  G01S17/10 ,  G01S7/4863 ,  G01S17/02

    Abstract: A device includes a time-of-flight ranging sensor configured to transmit optical pulse signals and to receive return optical pulse signals. The time-of-flight ranging sensor processes the return optical pulse signals to sense distances to a plurality of objects and to generate a confidence value indicating whether one of the plurality of objects has a highly reflective surface. The time-of-flight sensor generates a range estimation signal including a plurality of sensed distances and the confidence value. The image capture device includes autofocusing circuitry coupled to the time-of-flight sensor to receive the range estimation signal and configured to control focusing based upon the sensed distances responsive to the confidence value indicating none of the plurality of objects has a highly reflective surface. The autofocusing circuitry controls focusing independent of the sensed distances responsive to the confidence value indicating one of the objects has a highly reflective surface.

    Determining reflectance of a target using a time of flight ranging system
    7.
    发明授权
    Determining reflectance of a target using a time of flight ranging system 有权

    公开(公告)号：US10067223B2

    公开(公告)日：2018-09-04

    申请号：US14809384

    申请日：2015-07-27

    Applicant: STMicroelectronics, Inc. ,  STMicroelectronics (Research & Development) Limited

    Inventor： Darin K. Winterton ,  Sam Lee

    IPC: G01C3/08 ,  G01S7/486 ,  G01S17/08 ,  G01S7/48

    Abstract: An electronic device includes a ranging light source and a reflected light detector. A logic circuit causes the ranging light source to emit ranging light at a target. Reflected light from the target is detected using the reflected light detector, with the reflected light being a portion of the ranging light that reflects from the target back toward the reflected light detector. An intensity of the reflected light is determined using the reflected light detector. A distance to the target is determined based upon time elapsed between activating the ranging light source and detecting the reflected ranging light. Reflectance of the target is calculated, based upon the intensity of the reflected light and the distance to the target.

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