Transparent Smartphone
    11.
    发明申请

    公开(公告)号:US20220066552A1

    公开(公告)日:2022-03-03

    申请号:US17421163

    申请日:2020-01-21

    Abstract: A method and system for rendering an augmented reality scene on a mobile computing device tracks a real-world scene and/or a viewpoint of a user with one or more event-based vision sensors and blends an augmented reality scene displayed on the mobile computing device based on the viewpoint of the user and a scene map of the real-world scene and on the tracking of the one or more event-based vision sensors. Event-based vision sensors offer many advantages, mainly by intrinsically compressing the data stream and thus reducing the amount of data that a processing unit needs to perform. Furthermore, the event-based vision sensor pixels continuously sense the visual changes in the scene and report them with a very low latency. This makes the event-based vision sensor an ideal sensor for always-on tasks such as visual tracking and smart sensor control or data enhancement of secondary sensing modalities.

    NMOS Comparator for Image Sensor Pixel

    公开(公告)号:US20220224853A1

    公开(公告)日:2022-07-14

    申请号:US17609438

    申请日:2020-05-08

    Abstract: An NMOS-only operational transconductance amplifier (OTA) replaces the PMOS transistors with switched capacitor pseudo-resistors in the pixels of an optical sensor such as a dynamic vision sensor or event-based vision sensor. Thus, if a stacked CMOS image sensor (CIS) process is employed, then the upper wafer can be kept free from N-wells, while still having the complete OTA on the upper wafer. Thus, it is possible to have only one wafer-to-wafer connection per pixel. Moreover, by operating the switched capacitor pseudo-resistors as three terminal devices, the gain can further be increased.

    Dynamic Vision Sensor Architecture
    16.
    发明申请

    公开(公告)号:US20210337151A1

    公开(公告)日:2021-10-28

    申请号:US17366392

    申请日:2021-07-02

    Abstract: A dynamic vision sensor (DVS) or change detection sensor reacts to changes in light intensity and in this way monitors how a scene changes. This disclosure covers both single pixel and array architectures. The DVS may contain one pixel or 2-dimensional or 1-dimensional array of pixels. The change of intensities registered by pixels are compared, and pixel addresses where the change is positive or negative are recorded and processed. Analyzing frames based on just three values for pixels, increase, decrease or unchanged, the proposed DVS can process visual information much faster than traditional computer vision systems, which correlate multi-bit color or gray level pixel values between successive frames.

    Transparent smartphone
    19.
    发明授权

    公开(公告)号:US11886637B2

    公开(公告)日:2024-01-30

    申请号:US18080148

    申请日:2022-12-13

    Abstract: A method and system for rendering an augmented reality scene on a mobile computing device tracks a real-world scene and/or a viewpoint of a user with one or more event-based vision sensors and blends an augmented reality scene displayed on the mobile computing device based on the viewpoint of the user and a scene map of the real-world scene and on the tracking of the one or more event-based vision sensors. Event-based vision sensors offer many advantages, mainly by intrinsically compressing the data stream and thus reducing the amount of data that a processing unit needs to perform. Furthermore, the event-based vision sensor pixels continuously sense the visual changes in the scene and report them with a very low latency. This makes the event-based vision sensor an ideal sensor for always-on tasks such as visual tracking and smart sensor control or data enhancement of secondary sensing modalities.

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