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公开(公告)号：US11860305B2
公开(公告)日：2024-01-02
申请号：US16453401
申请日：2019-06-26
Applicant: Waymo LLC
Inventor： Pierre-Yves Droz , Caner Onal , William McCann , Bernard Fidric , Vadim Gutnik , Laila Mattos , Rahim Pardhan
IPC: G01S7/481 , G05D1/02 , G01S17/89 , G01S7/4911 , G01S17/42 , G01S17/86 , G01S13/931 , G01S17/931
CPC classification number: G01S7/4813 , G01S7/4816 , G01S7/4817 , G01S7/4818 , G01S7/4911 , G01S13/931 , G01S17/42 , G01S17/86 , G01S17/89 , G01S17/931 , G05D1/024 , G05D2201/0213
Abstract: Described herein is a LIDAR device that may include a transmitter, first and second receivers, and a rotating platform. The transmitter may be configured to emit light having a vertical beam width. The first receiver may be configured to detect light at a first resolution while scanning the environment with a first FOV and the second receiver may be configured to detect light at a second resolution while scanning the environment with a second FOV. In this arrangement, the first resolution may be higher than the second resolution, the first FOV may be at least partially different from the second FOV, and the vertical beam width may encompass at least a vertical extent of the first and second FOVs. Further, the rotating platform may be configured to rotate about an axis such that the transmitter and first and second receivers each move based on the rotation.
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公开(公告)号：US20230126631A1
公开(公告)日：2023-04-27
申请号：US18145149
申请日：2022-12-22
Applicant: Waymo LLC
Inventor： Pierre-yves Droz , Gaetan Pennecot , Drew Eugene Ulrich , Dorel Ionut Iordache , Rahim Pardhan
IPC: G01S7/48 , G01S17/93 , G01S17/10 , G01S17/42 , G01S17/66 , G01S17/87 , G01S17/89 , G01S7/481 , G01S17/931 , G01C3/02
Abstract: A vehicle is provided that includes one or more wheels positioned at a bottom side of the vehicle. The vehicle also includes a first light detection and ranging device (LIDAR) positioned at a top side of the vehicle opposite to the bottom side. The first LIDAR is configured to scan an environment around the vehicle based on rotation of the first LIDAR about an axis. The first LIDAR has a first resolution. The vehicle also includes a second LIDAR configured to scan a field-of-view of the environment that extends away from the vehicle along a viewing direction of the second LIDAR. The second LIDAR has a second resolution. The vehicle also includes a controller configured to operate the vehicle based on the scans of the environment by the first LIDAR and the second LIDAR.
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公开(公告)号：US11585909B2
公开(公告)日：2023-02-21
申请号：US16227156
申请日：2018-12-20
Applicant: Waymo LLC
Inventor： Rahim Pardhan , Blaise Gassend
Abstract: The present disclosure relates to systems and methods that facilitate compliance of a laser device with a laser safety threshold. An example method includes receiving, from a sensing circuit, an operating voltage that is indicative of a charge of a capacitive element of a laser pulser circuit. The method also includes comparing a first voltage indicative of the operating voltage and a second voltage indicative of a reference voltage. The method additionally includes providing an output value based on the comparing. The method yet further includes evaluating compliance with the laser safety threshold based on the output value.
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公开(公告)号：US20210226401A1
公开(公告)日：2021-07-22
申请号：US17220392
申请日：2021-04-01
Applicant: Waymo LLC
Inventor： Bernard Fidric , Daniel Rosenfeld , Rahim Pardhan
Abstract: The present disclosure relates to a fiber encapsulation mechanism for energy dissipation in a fiber amplifying system. One example embodiment includes an optical fiber amplifier. The optical fiber amplifier includes an optical fiber that includes a gain medium, as well as a polymer layer that at least partially surrounds the optical fiber. The polymer layer is optically transparent. In addition, the optical fiber amplifier includes a pump source. Optical pumping by the pump source amplifies optical signals in the optical fiber and generates excess heat and excess photons. The optical fiber amplifier additionally includes a heatsink layer disposed adjacent to the polymer layer. The heatsink layer conducts the excess heat away from the optical fiber. Further, the optical fiber amplifier includes an optically transparent layer disposed adjacent to the polymer layer. The optically transparent layer transmits the excess photons away from the optical fiber.
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公开(公告)号：US10120079B2
公开(公告)日：2018-11-06
申请号：US15714326
申请日：2017-09-25
Applicant: Waymo LLC
Inventor： Gaetan Pennecot , Zachary Morriss , Samuel Lenius , Ionut Iordache , Daniel Gruver , Pierre-Yves Droz , Luke Wachter , Drew Ulrich , William McCann , Rahim Pardhan , Bernard Fidric , Anthony Levandowski , Peter Avram
IPC: G01C3/08 , G01S17/93 , G01S17/10 , G01S17/42 , G01S17/66 , G01S17/87 , G01S17/89 , G01S7/48 , G01S7/481 , G01C3/02 , G01S17/02
Abstract: A vehicle is provided that includes one or more wheels positioned at a bottom side of the vehicle. The vehicle also includes a first light detection and ranging device (LIDAR) positioned at a top side of the vehicle opposite to the bottom side. The first LIDAR is configured to scan an environment around the vehicle based on rotation of the first LIDAR about an axis. The first LIDAR has a first resolution. The vehicle also includes a second LIDAR configured to scan a field-of-view of the environment that extends away from the vehicle along a viewing direction of the second LIDAR. The second LIDAR has a second resolution. The vehicle also includes a controller configured to operate the vehicle based on the scans of the environment by the first LIDAR and the second LIDAR.
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Patent Agency Ranking
公开(公告)号：US09787048B1
公开(公告)日：2017-10-10
申请号：US15294886
申请日：2016-10-17
Applicant: Waymo LLC
Inventor： Bernard Fidric , Daniel Rosenfeld , Rahim Pardhan
CPC classification number: H01S3/0405 , G01S7/4818 , G01S17/02 , G01S17/10 , G02B6/02395 , G02B6/2551 , G02B6/2558 , H01S3/005 , H01S3/0064 , H01S3/0078 , H01S3/042 , H01S3/06704 , H01S3/06754 , H01S3/06758 , H01S3/06783 , H01S3/0804 , H01S3/094003 , H01S3/094007 , H01S3/094069 , H01S3/09415 , H01S3/1603 , H01S3/1608 , H01S3/1618 , H01S2301/03
Abstract: The present disclosure relates to a fiber encapsulation mechanism for energy dissipation in a fiber amplifying system. One example embodiment includes an optical fiber amplifier. The optical fiber amplifier includes an optical fiber that includes a gain medium, as well as a polymer layer that at least partially surrounds the optical fiber. The polymer layer is optically transparent. In addition, the optical fiber amplifier includes a pump source. Optical pumping by the pump source amplifies optical signals in the optical fiber and generates excess heat and excess photons. The optical fiber amplifier additionally includes a heatsink layer disposed adjacent to the polymer layer. The heatsink layer conducts the excess heat away from the optical fiber. Further, the optical fiber amplifier includes an optically transparent layer disposed adjacent to the polymer layer. The optically transparent layer transmits the excess photons away from the optical fiber.
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公开(公告)号：US20240085530A1
公开(公告)日：2024-03-14
申请号：US18513609
申请日：2023-11-19
Applicant: Waymo LLC
Inventor： Pierre-Yves Droz , Caner Onal , William McCann , Bernard Fidric , Vadim Gutnik , Laila Mattos , Rahim Pardhan
IPC: G01S7/481 , G01S7/4911 , G01S13/931 , G01S17/42 , G01S17/86 , G01S17/89 , G01S17/931 , G05D1/02
CPC classification number: G01S7/4813 , G01S7/4816 , G01S7/4817 , G01S7/4818 , G01S7/4911 , G01S13/931 , G01S17/42 , G01S17/86 , G01S17/89 , G01S17/931 , G05D1/024 , G05D2201/0213
Abstract: Described herein is a LIDAR device that may include a transmitter, first and second receivers, and a rotating platform. The transmitter may be configured to emit light having a vertical beam width. The first receiver may be configured to detect light at a first resolution while scanning the environment with a first FOV and the second receiver may be configured to detect light at a second resolution while scanning the environment with a second FOV. In this arrangement, the first resolution may be higher than the second resolution, the first FOV may be at least partially different from the second FOV, and the vertical beam width may encompass at least a vertical extent of the first and second FOVs. Further, the rotating platform may be configured to rotate about an axis such that the transmitter and first and second receivers each move based on the rotation.
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公开(公告)号：US20230161019A1
公开(公告)日：2023-05-25
申请号：US18157951
申请日：2023-01-23
Applicant: Waymo LLC
Inventor： Rahim Pardhan , Blaise Gassend
Abstract: The present disclosure relates to systems and methods that facilitate compliance of a laser device with a laser safety threshold. An example method includes receiving, from a sensing circuit, an operating voltage that is indicative of a charge of a capacitive element of a laser pulser circuit. The method also includes comparing a first voltage indicative of the operating voltage and a second voltage indicative of a reference voltage. The method additionally includes providing an output value based on the comparing. The method yet further includes evaluating compliance with the laser safety threshold based on the output value.
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公开(公告)号：US11569629B2
公开(公告)日：2023-01-31
申请号：US16943862
申请日：2020-07-30
Applicant: Waymo LLC
Inventor： Rahim Pardhan , William McCann , Drew Ulrich , Pierre-yves Droz
IPC: H01S3/04 , H01S3/067 , G01S7/481 , G01S17/931 , H02K9/22
Abstract: An example apparatus may include a first plate having a first side. A first plurality of fins may be integral with the first side of the first plate and protruding perpendicularly therefrom. The first plurality of fins may be arranged in first concentric circles separated radially by a first distance. The apparatus may also include a second plate having a first side. The second plate may be rotatably coupled to the first plate. A second plurality of fins may be integral with the first side of the second plate and protruding perpendicularly therefrom. The second plurality of fins may be arranged in second concentric circles separated radially by the first distance. Each fin of the second plurality of fins may interpose between adjacent fins of the first plurality of fins to transfer heat between the second plate and the first plate.
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公开(公告)号：US10379540B2
公开(公告)日：2019-08-13
申请号：US15295619
申请日：2016-10-17
Applicant: Waymo LLC
Inventor： Pierre-Yves Droz , Caner Onal , William McCann , Bernard Fidric , Vadim Gutnik , Laila Mattos , Rahim Pardhan
IPC: G01S7/491 , G01S17/89 , G05D1/02 , G05D1/00 , G01S17/02 , G01S17/42 , G01S17/93 , G01S7/481 , G01S13/93
Abstract: Described herein is a LIDAR device that may include a transmitter, first and second receivers, and a rotating platform. The transmitter may be configured to emit light having a vertical beam width. The first receiver may be configured to detect light at a first resolution while scanning the environment with a first FOV and the second receiver may be configured to detect light at a second resolution while scanning the environment with a second FOV. In this arrangement, the first resolution may be higher than the second resolution, the first FOV may be at least partially different from the second FOV, and the vertical beam width may encompass at least a vertical extent of the first and second FOVs. Further, the rotating platform may be configured to rotate about an axis such that the transmitter and first and second receivers each move based on the rotation.
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