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    FINGERTIP LIDAR SYSTEM FOR VISUAL ASSISTANCE
    1.
    发明申请
    FINGERTIP LIDAR SYSTEM FOR VISUAL ASSISTANCE 有权

    公开(公告)号：US20230029105A1

    公开(公告)日：2023-01-26

    申请号：US17869891

    申请日：2022-07-21

    Applicant: Seagate Technology LLC

    Inventor： Kevin A. Gomez

    IPC: G06F3/01 ,  G01S17/88 ,  G01S17/42 ,  G06F3/16 ,  G01S7/481

    Abstract: Method and apparatus for using light detection and ranging (LiDAR) to assist the visually impaired. In some embodiments, a LiDAR system is affixed to a selected finger of a user and used to emit light pulses within a field of view (FoV) before the user. Reflected pulses are detected to generate a point cloud representation of the FoV. A sensory input is provided to the user that describes the point cloud representation of the FoV. The sensory input may be haptic, auditory or some other form. In some cases, a glove is worn by the user and a separate LiDAR system is affixed to each finger portion of the glove to provide a composite scanning and detection operation. Preconfigured hand gestures by the user can be used to change the operational configuration of the system.

    INTERLACING SCAN PATTERNS TO ENHANCE REGIONS OF INTEREST
    2.
    发明申请
    INTERLACING SCAN PATTERNS TO ENHANCE REGIONS OF INTEREST 有权

    公开(公告)号：US20230012158A1

    公开(公告)日：2023-01-12

    申请号：US17863026

    申请日：2022-07-12

    Applicant: Seagate Technology LLC

    Inventor： Daniel Joseph Klemme ,  Kevin A. Gomez ,  Daniel Aaron Mohr

    IPC: G01S17/89 ,  G01S7/481 ,  G01S7/483 ,  G01S17/931 ,  G02B26/08

    Abstract: Apparatus and method for enhancing resolution in a light detection and ranging (LiDAR) system. In some embodiments, an emitter is configured to emit a first beam of light pulses over a baseline, first field of view (FoV). Responsive to an activation signal, a controller circuit directs the emitter to concurrently interleave a second beam of light pulses over a second FoV within the first FoV. The first and second beams may be provided at different resolutions and frame rates, and may have pulses with different waveform characteristics to enable decoding using separate detection channels. The interlaced beams provide variable scanning of particular areas of interest within the baseline FoV. The second beam may be activated based on range information obtained from the first beam, or from an external sensor. Separate light sources operative at different wavelengths can be used to generate the first and second beams.

    LIDAR WITH SUN-INDUCED NOISE REDUCTION
    7.
    发明申请
    LIDAR WITH SUN-INDUCED NOISE REDUCTION 有权

    公开(公告)号：US20230003837A1

    公开(公告)日：2023-01-05

    申请号：US17852091

    申请日：2022-06-28

    Applicant: Seagate Technology LLC

    Inventor： Mazbeen Jehanbux Palsetia ,  Kevin A. Gomez

    IPC: G01S7/48

    Abstract: A light detection and ranging system can have a sun module connected to an optical assembly configured to detect downrange targets by emitting a light beam and detecting returning photons. The controller having an inertial measurement circuit and a positioning circuit collectively configured to identify a location of a sun and ignore photons received from the sun's location.

    ADAPTIVE AVALANCHE PHOTODIODE BIAS SET POINT CALIBRATION SYSTEM AND METHOD
    8.
    发明申请
    ADAPTIVE AVALANCHE PHOTODIODE BIAS SET POINT CALIBRATION SYSTEM AND METHOD 有权

    公开(公告)号：US20220120880A1

    公开(公告)日：2022-04-21

    申请号：US17494151

    申请日：2021-10-05

    Applicant: Seagate Technology LLC

    Inventor： Adam R. Bush ,  Kevin A. Gomez

    IPC: G01S7/497 ,  G01S7/487 ,  G01S7/493

    Abstract: An optical engine for a LiDAR system comprises an analog detection channel comprising an avalanche photodiode (APD) optically coupled to light receiving optics and bias circuitry coupled to the APD and configured to adjust a bias set point (BSP) of the APD. Sensors sense disparate environmental factors that impact optical engine performance. Memory stores pre-established APD BSP data including a nominal APD BSP and pre-established dependence data characterizing the impact of disparate environmental factors on the nominal APD BSP. A controller generates, using sensor signals, in-field dependence data characterizing the impact the disparate environmental factors currently have on the nominal APD BSP, calculate an updated APD BSP using the in-field and pre-established dependence data, and shift the BSP of the APD from the nominal APD BSP to the updated APD BSP to enhance optical engine performance.

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