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公开(公告)号：US20240069157A1
公开(公告)日：2024-02-29
申请号：US17823327
申请日：2022-08-30
Applicant: Waymo LLC
Inventor： Adam Brown , Gary Clayton
IPC: G01S7/40 , G01S13/931 , H04W4/02
CPC classification number: G01S7/40 , G01S7/4039 , G01S13/931 , H04W4/023 , B60W60/001
Abstract: Example embodiments relate to methods and systems for using interference to detect sensor impairment. Radar or another type of sensor on a vehicle may receive radio-frequency (RF) signals propagating in the environment. These RF signals may originate from an external source and a computing device can be used to determine a distance and an angle to the source in order to identify a power level threshold that represents an expected power associated with the RF signals. The computing device may then perform a comparison between a power level of the RF signals and a power level threshold. Based on the comparison, the computing device may decrease a confidence assigned to the radar coupled to the vehicle and control the vehicle based on the decreased confidence assigned to the radar.
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公开(公告)号：US11226397B2
公开(公告)日：2022-01-18
申请号：US16532655
申请日：2019-08-06
Applicant: Waymo LLC
Inventor： Benjamin Chen , Adam Brown , Philip Ma , Matthew Markel
IPC: G01S7/03 , G01S13/931 , H01Q1/42 , H01Q1/32
Abstract: Example embodiments relate to slanted radomes for protecting radar units. An example radar system may include a radar unit that includes at least one antenna having a radiation pattern. The radar unit is configured to transmit a radar signal based on the radiation pattern and receive radar signals. In addition, the radar system further includes a radome located in a direction of transmission of the radiation pattern. Particularly, the radome is aligned at an angle relative to a plane of the at least one antenna such that reflections of the transmitted radar signal caused by the radome are directed towards at least one of a null of the radiation pattern and an absorption component.
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公开(公告)号：US20210333383A1
公开(公告)日：2021-10-28
申请号：US17369367
申请日：2021-07-07
Applicant: Waymo LLC
Inventor： Adam Brown
IPC: G01S13/42 , G01S13/34 , G01S13/10 , G01S13/931
Abstract: A radar system in an autonomous vehicle may be operated in various modes and with various configurations. In one example, the radar system determines a target range for further interrogation. The target range may be determined based on the radar system transmitting a first electromagnetic radiation signal and receiving a first reflected electromagnetic signal radiation signal. After the radar system determines a target range, it transmits a second electromagnetic radiation signal. Additionally, the radar system receives a reflected electromagnetic signal radiation based on the transmission. After receiving the reflected signal, the radar system can process the reflected signal to only have components associated with the target range. The processing of the reflected signal may create a processed signal. Finally, the radar system may determine at least one parameter of a target object based on the processed signal.
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公开(公告)号：US20200266544A1
公开(公告)日：2020-08-20
申请号：US16867921
申请日：2020-05-06
Applicant: Waymo LLC
Inventor： Adam Brown
Abstract: The present application discloses embodiments that relate to an electromagnetic apparatus. In one aspect, the present apparatus includes a circuit board configured to propagate an electromagnetic signal. The apparatus also includes a waveguide configured to propagate an electromagnetic signal. The apparatus further includes a coupling port configured to couple a signal between the circuit board and the waveguide, where the coupling port has dimensions based on a desired impedance of the port.
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公开(公告)号：US10530047B2
公开(公告)日：2020-01-07
申请号：US15603978
申请日：2017-05-24
Applicant: Waymo LLC
Inventor： Helen K. Pan , Adam Brown , Edward McCloskey
Abstract: The present application discloses embodiments that relate to an electromagnetic apparatus. In one aspect, the present apparatus includes a circuit board configured to propagate an electromagnetic signal, a waveguide configured to propagate an electromagnetic signal, and a coupling port configured to couple the electromagnetic signal between the circuit board and the waveguide. The apparatus further includes a radiating structure disposed on the circuit board. The radiating structure includes an electric field coupling component configured to an electric field between the circuit board and the coupling port and a magnetic field coupling component configured to couple a magnetic field between the circuit board and the coupling port.
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Patent Agency Ranking
公开(公告)号：US10473780B1
公开(公告)日：2019-11-12
申请号：US15677615
申请日：2017-08-15
Applicant: Waymo LLC
Inventor： Adam Brown
Abstract: In an example method, a vehicle configured to operate in an autonomous mode could have a radar system used to aid in vehicle guidance. The method could include a plurality of antennas configured to transmit and receive electromagnetic signals. The method may also include a one or more sensors configured to measure a movement of the vehicle. A portion of the method may be performed by a processor configured to: i) determine adjustments based on the movement of the vehicle; ii) calculate distance and direction information for received electromagnetic signals; and iii) recover distance and direction information for received electromagnetic signals with the adjustments applied. The processor may be further configured to adjust the movement of the autonomous vehicle based on the distance and direction information with adjustments applied.
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公开(公告)号：US10224617B2
公开(公告)日：2019-03-05
申请号：US15219423
申请日：2016-07-26
Applicant: Waymo LLC
Inventor： Benjamin Chen , Adam Brown , Jamal Izadian
IPC: H01Q13/06 , H01Q1/32 , H01Q1/50 , H01Q9/04 , H01Q21/00 , H01P5/12 , H01P11/00 , H01Q21/06 , G01S7/40
Abstract: The radar system includes a split-block assembly comprising a first portion and a second portion. The first portion and the second portion form a seam, where the first portion has a top side opposite the seam and the second portion has a bottom side opposite the seam. The system includes at least one port located on a bottom side of the second portion. Additionally, the system includes radiating elements located on the top side of the first portion, wherein the radiating elements are arranged in a plurality of arrays. Yet further, the system includes a set of waveguides in the split-block assembly configured to couple each array to at least one port. Furthermore, the split-block assembly is made from a polymer and where at least the set of waveguides, the at least one port, and the plurality of radiating elements include metal on a surface of the polymer.
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公开(公告)号：US10222462B2
公开(公告)日：2019-03-05
申请号：US14994902
申请日：2016-01-13
Applicant: Waymo LLC
Inventor： Adam Brown
Abstract: A radar system in an autonomous vehicle may be operated in various modes and with various configurations. In one example, the radar system determines a target range for further interrogation. The target range may be determined based on the radar system transmitting a first electromagnetic radiation signal and receiving a first reflected electromagnetic signal radiation signal. After the radar system determines a target range, it transmits a second electromagnetic radiation signal. Additionally, the radar system receives a reflected electromagnetic signal radiation based on the transmission. After receiving the reflected signal, the radar system can process the reflected signal to only have components associated with the target range. The processing of the reflected signal may create a processed signal. Finally, the radar system may determine at least one parameter of a target object based on the processed signal.
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公开(公告)号：US11802953B2
公开(公告)日：2023-10-31
申请号：US17369367
申请日：2021-07-07
Applicant: Waymo LLC
Inventor： Adam Brown
IPC: G01S13/42 , G01S13/10 , G01S13/34 , G01S13/931 , G01S13/86
CPC classification number: G01S13/42 , G01S13/10 , G01S13/34 , G01S13/931 , G01S13/86 , G01S13/862 , G01S13/865 , G01S13/867 , G01S2013/93271 , G01S2013/93275
Abstract: A radar system in an autonomous vehicle may be operated in various modes and with various configurations. In one example, the radar system determines a target range for further interrogation. The target range may be determined based on the radar system transmitting a first electromagnetic radiation signal and receiving a first reflected electromagnetic signal radiation signal. After the radar system determines a target range, it transmits a second electromagnetic radiation signal. Additionally, the radar system receives a reflected electromagnetic signal radiation based on the transmission. After receiving the reflected signal, the radar system can process the reflected signal to only have components associated with the target range. The processing of the reflected signal may create a processed signal. Finally, the radar system may determine at least one parameter of a target object based on the processed signal.
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公开(公告)号：US11067681B1
公开(公告)日：2021-07-20
申请号：US16251732
申请日：2019-01-18
Applicant: Waymo LLC
Inventor： Adam Brown
Abstract: A radar system in an autonomous vehicle may be operated in various modes and with various configurations. In one example, the radar system determines a target range for further interrogation. The target range may be determined based on the radar system transmitting a first electromagnetic radiation signal and receiving a first reflected electromagnetic signal radiation signal. After the radar system determines a target range, it transmits a second electromagnetic radiation signal. Additionally, the radar system receives a reflected electromagnetic signal radiation based on the transmission. After receiving the reflected signal, the radar system can process the reflected signal to only have components associated with the target range. The processing of the reflected signal may create a processed signal. Finally, the radar system may determine at least one parameter of a target object based on the processed signal.
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