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    Processing system for LIDAR measurements
    1.
    发明授权
    Processing system for LIDAR measurements 有权

    公开(公告)号：US12189038B2

    公开(公告)日：2025-01-07

    申请号：US17496583

    申请日：2020-08-05

    Applicant: Ouster, Inc.

    Inventor： Angus Pacala ,  Marvin Shu

    IPC: G01S17/89 ,  G01S7/4865 ,  G01S7/487 ,  G01S17/894 ,  G01S17/931

    Abstract: An optical measurement system may improve the accuracy with which it estimates distances to surrounding objects by upgrading various aspects of its data path. Spatial resolution may be increased by subdividing histogram buckets or integration registers based on spatial location. Saturation at any point in the data path can be detected and used to stop counting photons in individual pixels, which can then be normalized after a measurement is over. Multiple peaks can be detected using recursive or iterative techniques to identify a largest remaining peak at each stage. Instead of iterating through the histogram memory multiple times, a threshold can be pre-calculated based on an estimated ambient noise level, and peaks can be detected in a single pass.

    Optical system for collecting distance information within a field
    2.
    发明授权
    Optical system for collecting distance information within a field 有权

    公开(公告)号：US11422236B2

    公开(公告)日：2022-08-23

    申请号：US17552303

    申请日：2021-12-15

    Applicant: Ouster, Inc.

    Inventor： Angus Pacala ,  Mark Frichtl ,  Marvin Shu ,  Eric Younge

    IPC: G01C3/08 ,  G01S7/481 ,  G01S17/89 ,  G01S17/08

    Abstract: Optical systems and methods for collecting distance information are disclosed. An example optical system includes a first transmitting optic, a plurality of illumination sources, a pixel array comprising at least a first column of pixels and a second column of pixels, each pixel in the first column of pixels being offset from an adjacent pixel in the first column of pixels by a first pixel pitch, the second column of pixels being horizontally offset from the first column of pixels by the first pixel pitch, the second column of pixels being vertically offset from the first column of pixels by a first vertical pitch; and a set of input channels interposed between the first transmitting optic and the pixel array.

    Light ranging system with opposing circuit boards
    4.
    发明授权
    Light ranging system with opposing circuit boards 有权

    公开(公告)号：US10830892B2

    公开(公告)日：2020-11-10

    申请号：US16209869

    申请日：2018-12-04

    Applicant: Ouster, Inc.

    Inventor： Angus Pacala ,  Mark Frichtl ,  Marvin Shu ,  Eric Younge

    IPC: G01S17/89 ,  G01S17/42 ,  G01S7/486 ,  G01S7/481 ,  B60L3/00 ,  H01S5/14 ,  H02J7/02 ,  G01S7/4863 ,  G01S7/497 ,  G01S17/931 ,  G01S17/10 ,  H01F38/14 ,  H05K1/02 ,  H05K1/14 ,  H05K1/18 ,  H05K5/00 ,  H04B10/114 ,  G02B3/00 ,  H02J50/10 ,  G05D1/02 ,  H02K11/00

    Abstract: A light ranging system including a housing; a shaft defining an axis of rotation; a first circuit board assembly disposed within and coupled to the housing in a fixed relationship such that the first circuit board assembly is aligned along a first plane perpendicular to the axis of rotation, the first circuit board assembly including a plurality of first circuit elements disposed on a first circuit board; a second circuit board assembly spaced apart from the first circuit board assembly within the housing in a second plane parallel to the first plane and rotationally coupled to the shaft such that the second circuit board assembly rotates about the axis of rotation, the second circuit board assembly including a plurality of second circuit elements disposed on a second circuit board and aligned with and configured to function in wireless cooperation with at least one of the first plurality of circuit elements; and a light ranging device electrically connected to and coupled to rotate with the second circuit board assembly, the light ranging device configured to transmit light pulses to objects in a surrounding environment, to detect reflected portions of the light pulses that are reflected from the objects in the surrounding environment, and to compute ranging data based on the reflected portion of the light pulses.

    Optical system for collecting distance information within a field
    5.
    发明授权
    Optical system for collecting distance information within a field 有权

    公开(公告)号：US10222458B2

    公开(公告)日：2019-03-05

    申请号：US15934613

    申请日：2018-03-23

    Applicant: Ouster, Inc.

    Inventor： Angus Pacala ,  Mark Frichtl ,  Marvin Shu ,  Eric Younge

    IPC: G01C3/08 ,  G01S7/481 ,  G01S17/08 ,  G01S17/89

    Abstract: Optical systems and methods for collecting distance information are disclosed. An example optical system includes a bulk receiving optic, a plurality of illumination sources, a pixel array comprising at least a first column of pixels and a second column of pixels, each pixel in the first column of pixels being offset from an adjacent pixel in the first column of pixels by a first pixel pitch, the second column of pixels being horizontally offset from the first column of pixels by the first pixel pitch, the second column of pixels being vertically offset from the first column of pixels by a first vertical pitch; and a set of input channels interposed between the bulk receiving optic and the pixel array.

    ROTATING COMPACT LIGHT RANGING SYSTEM
    8.
    发明申请
    ROTATING COMPACT LIGHT RANGING SYSTEM 有权

    公开(公告)号：US20210278506A1

    公开(公告)日：2021-09-09

    申请号：US17323987

    申请日：2021-05-18

    Applicant: Ouster, Inc.

    Inventor： Angus Pacala ,  Mark Frichtl ,  Marvin Shu ,  Eric Younge

    IPC: G01S7/481 ,  G01S17/89 ,  G01S17/42 ,  G01S7/486 ,  B60L3/00 ,  H01S5/14 ,  G01S7/4863 ,  G01S7/497 ,  G01S17/931 ,  G01S17/10 ,  H01F38/14 ,  H05K1/02 ,  H05K1/14 ,  H05K1/18 ,  H05K5/00 ,  H04B10/114 ,  G02B3/00

    Abstract: A light ranging system including a shaft; a first circuit board assembly that includes a stator assembly comprising a plurality of stator elements arranged about the shaft on a surface of the first circuit board assembly; a second circuit board assembly rotationally coupled to the shaft, wherein the second circuit board assembly includes a rotor assembly comprising a plurality of rotor elements arranged about the shaft on a surface of the second circuit board assembly such that the plurality of rotor elements are aligned with and spaced apart from the plurality of stator elements; a stator driver circuit disposed on either the second or the first circuit board assemblies and configured to provide a drive signal to the plurality of stator elements, thereby imparting an electromagnetic force on the plurality of rotor elements to drive a rotation of the second circuit board assembly about the shaft; and a light ranging device mechanically coupled to the second circuit board assembly such that the light ranging device rotates with the second circuit board assembly.

    Light ranging system with opposing circuit boards
    9.
    发明授权
    Light ranging system with opposing circuit boards 有权

    公开(公告)号：US10969490B2

    公开(公告)日：2021-04-06

    申请号：US16209869

    申请日：2018-12-04

    Applicant: Ouster, Inc.

    Inventor： Angus Pacala ,  Mark Frichtl ,  Marvin Shu ,  Eric Younge

    IPC: G01S17/89 ,  G01S17/42 ,  G01S7/486 ,  G01S7/481 ,  B60L3/00 ,  H01S5/14 ,  H02J7/02 ,  G01S7/4863 ,  G01S7/497 ,  G01S17/931 ,  G01S17/10 ,  H01F38/14 ,  H05K1/02 ,  H05K1/14 ,  H05K1/18 ,  H05K5/00 ,  H04B10/114 ,  G02B3/00 ,  H02J50/10 ,  G05D1/02 ,  H02K11/00

    Abstract: A light ranging system including a housing; a shaft defining an axis of rotation; a first circuit board assembly disposed within and coupled to the housing in a fixed relationship such that the first circuit board assembly is aligned along a first plane perpendicular to the axis of rotation, the first circuit board assembly including a plurality of first circuit elements disposed on a first circuit board; a second circuit board assembly spaced apart from the first circuit board assembly within the housing in a second plane parallel to the first plane and rotationally coupled to the shaft such that the second circuit board assembly rotates about the axis of rotation, the second circuit board assembly including a plurality of second circuit elements disposed on a second circuit board and aligned with and configured to function in wireless cooperation with at least one of the first plurality of circuit elements; and a light ranging device electrically connected to and coupled to rotate with the second circuit board assembly, the light ranging device configured to transmit light pulses to objects in a surrounding environment, to detect reflected portions of the light pulses that are reflected from the objects in the surrounding environment, and to compute ranging data based on the reflected portion of the light pulses.

    ACCURATE PHOTO DETECTOR MEASUREMENTS FOR LIDAR
    10.
    发明申请
    ACCURATE PHOTO DETECTOR MEASUREMENTS FOR LIDAR 审中-公开

    公开(公告)号：US20180259645A1

    公开(公告)日：2018-09-13

    申请号：US15909628

    申请日：2018-03-01

    Applicant: Ouster, Inc.

    Inventor： Marvin Shu ,  Angus PACALA ,  Mark FRICHTL

    IPC: G01S17/10 ,  H01L27/146 ,  H01L31/107

    Abstract: A light ranging system can include a laser device and an imaging device having photosensors. The laser device illuminates a scene with laser pulse radiation that reflects off of objects in the scene. The reflections can vary greatly depending on the reflecting surface shape and reflectivity. The signal measured by photosensors can be filtered with a number of matched filter designed according to profiles of different reflected signals. A best matched filter can be identified, and hence information about the reflecting surface and accurate ranging information can be obtained. The laser pulse radiation can be emitted in coded pulses by allowing weights to different detection intervals. Other enhancements include staggering laser pulses and changing an operational status of photodetectors of a pixel sensor, as well as efficient signal processing using a sensor chip that includes processing circuits and photosensors.

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