中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

36 records (took 0.025 seconds)

    Methods and Systems for LIDAR Optics Alignment
    24.
    发明公开
    Methods and Systems for LIDAR Optics Alignment 审中-公开

    公开(公告)号：US20240045042A1

    公开(公告)日：2024-02-08

    申请号：US18487538

    申请日：2023-10-16

    Applicant: Waymo LLC

    Inventor： Gaetan Pennecot ,  Pierre-Yves Droz

    IPC: G01S7/497 ,  G01S7/51 ,  G01S17/06 ,  G01S17/42 ,  G01S7/481 ,  G02B27/62 ,  G01S17/89

    CPC classification number: G01S7/4972 ,  G01S7/51 ,  G01S17/06 ,  G01S17/42 ,  G01S7/4815 ,  G01S7/4817 ,  G02B27/62 ,  G01S17/89 ,  G02B5/20

    Abstract: A method is provided that involves mounting a transmit block and a receive block in a LIDAR device to provide a relative position between the transmit block and the receive block. The method also involves locating a camera at a given position at which the camera can image light beams emitted by the transmit block and can image the receive block. The method also involves obtaining, using the camera, a first image indicative of light source positions of one or more light sources in the transmit block and a second image indicative of detector positions of one or more detectors in the receive block. The method also involves determining at least one offset based on the first image and the second image. The method also involves adjusting the relative position between the transmit block and the receive block based at least in part on the at least one offset.

    Variable beam spacing, timing, and power for vehicle sensors
    25.
    发明授权
    Variable beam spacing, timing, and power for vehicle sensors 有权

    公开(公告)号：US11333746B2

    公开(公告)日：2022-05-17

    申请号：US16827214

    申请日：2020-03-23

    Applicant: Waymo LLC

    Inventor： Benjamin Ingram ,  Pierre-Yves Droz ,  Luke Wachter ,  Scott McCloskey ,  Blaise Gassend ,  Gaetan Pennecot

    IPC: G01S7/481 ,  G01S7/484 ,  H01S3/11 ,  G01S17/10 ,  H01S5/40 ,  G01S17/931 ,  H01S3/23

    Abstract: The present disclosure relates to systems and methods that facilitate light detection and ranging operations. An example transmit block includes at least one substrate with a plurality of angled facets. The plurality of angled facets provides a corresponding plurality of elevation angles. A set of angle differences between adjacent elevation angles includes at least two different angle difference values. A plurality of light-emitter devices is configured to emit light into an environment along the plurality of elevation angles toward respective target locations so as to provide a desired resolution and/or a respective elevation angle. The present disclosure also relates to adjusting shot power and a shot schedule based on the desired resolution and/or a respective elevation angle.

    Devices and methods for a LIDAR platform with a shared transmit/receive path
    26.
    再颁专利
    Devices and methods for a LIDAR platform with a shared transmit/receive path 有权

    公开(公告)号：USRE48042E1

    公开(公告)日：2020-06-09

    申请号：US15919479

    申请日：2018-03-13

    Applicant: Waymo LLC

    Inventor： Gaetan Pennecot ,  Pierre-Yves Droz ,  Drew Eugene Ulrich ,  Daniel Gruver ,  Zachary Morriss ,  Anthony Levandowski

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

    Abstract: A LIDAR device may transmit light pulses originating from one or more light sources and may receive reflected light pulses that are then detected by one or more detectors. The LIDAR device may include a lens that both (i) collimates the light from the one or more light sources to provide collimated light for transmission into an environment of the LIDAR device and (ii) focuses the reflected light onto the one or more detectors. The lens may define a curved focal surface in a transmit path of the light from the one or more light sources and a curved focal surface in a receive path of the one or more detectors. The one or more light sources may be arranged along the curved focal surface in the transmit path. The one or more detectors may be arranged along the curved focal surface in the receive path.

    Variable Beam Spacing, Timing, and Power for Vehicle Sensors
    27.
    发明申请
    Variable Beam Spacing, Timing, and Power for Vehicle Sensors 审中-公开

    公开(公告)号：US20190033430A1

    公开(公告)日：2019-01-31

    申请号：US16145909

    申请日：2018-09-28

    Applicant: Waymo LLC

    Inventor： Benjamin Ingram ,  Pierre-Yves Droz ,  Luke Wachter ,  Scott McCloskey ,  Blaise Gassend ,  Gaetan Pennecot

    IPC: G01S7/481 ,  G01S7/484 ,  G01S17/10 ,  G01S17/93 ,  H01S3/11

    Abstract: The present disclosure relates to systems and methods that facilitate light detection and ranging operations. An example transmit block includes at least one substrate with a plurality of angled facets. The plurality of angled facets provides a corresponding plurality of elevation angles. A set of angle differences between adjacent elevation angles includes at least two different angle difference values. A plurality of light-emitter devices is configured to emit light into an environment along the plurality of elevation angles toward respective target locations so as to provide a desired resolution and/or a respective elevation angle. The present disclosure also relates to adjusting shot power and a shot schedule based on the desired resolution and/or a respective elevation angle.

    Laser diode timing feedback using trace loop
    30.
    发明授权
    Laser diode timing feedback using trace loop 有权

    公开(公告)号：US11460575B1

    公开(公告)日：2022-10-04

    申请号：US15992340

    申请日：2018-05-30

    Applicant: Waymo LLC

    Inventor： Pierre-yves Droz ,  Gaetan Pennecot

    IPC: G01S17/08 ,  G08G1/16 ,  G01S7/481 ,  G01S7/486 ,  G01S7/4865

    Abstract: A laser diode firing circuit for a light detection and ranging (LIDAR) device that includes an inductively coupled feedback system is disclosed. The firing circuit includes a laser diode coupled in series with a transistor, such that current through the laser diode is controlled by the transistor. The laser diode is configured to emit a pulse of light in response to current flowing through the laser diode. A feedback loop is positioned to be inductively coupled to a current path of the firing circuit that includes the laser diode. As such, a change in current flowing through the laser diode induces a voltage in the feedback loop. A change in voltage across the leads of the feedback loop can be detected and the timing of the voltage change can be used to determine the time that current begins flowing through the laser diode.

Patent Agency Ranking