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公开(公告)号：US20240288562A1
公开(公告)日：2024-08-29
申请号：US18176295
申请日：2023-02-28
发明人： Xin Zhang , Zhengzheng Li , Yu Zhang
IPC分类号： G01S13/00 , G01S13/68 , G01S13/931
CPC分类号： G01S13/003 , G01S13/68 , G01S13/931
摘要： This document describes a radar system to universally detect direct-of-arrival (DoA) and direction-of-departure (DoD) angles in direct-path and multipath reflection conditions. For example, a radar system includes a transmitter and receiver array with a first array forming a minimum redundancy array and a second array forming a sparse uniform linear array. A processor determines, using second-array measurements, estimated angles. The quantity of estimated angles is larger than the quantity of actual angles due to angular ambiguity of the second array. The processor then identifies multiple potential sets of actual angles from among the estimated angles and tests each set under a maximum likelihood criterion using first-array measurements. The DoA and DoD angles are identified as the respective set with a maximum utility function value. In this way, the processor determines actual angles with improved resolution and reduced cost without having to identify whether a direct-path or multipath reflection condition exists.
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公开(公告)号：US20240246560A1
公开(公告)日：2024-07-25
申请号：US18159663
申请日：2023-01-25
IPC分类号： B60W60/00
CPC分类号： B60W60/001 , B60W2555/00
摘要： The techniques and systems herein enable robot management in populated areas. Specifically, a vehicle system receives sensor data indicating aspects of an environment proximate a vehicle that comprises the vehicle system. Based on the sensor data, it is determined whether robots are in the environment proximate the vehicle. Responsive to determining that a robot is in the environment proximate the vehicle, attributes of the robot are determined based on the sensor data. A robot message is then generated that includes indications of the attributes of the robot, and the robot message is transmitted for receipt by a robot management system. By using the described techniques, the robot management system can leverage the vast number of vehicles with advanced sensor suites to monitor robots. Doing so may enable verification of routes and identification of robots that are not registered.
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公开(公告)号：US20240246529A1
公开(公告)日：2024-07-25
申请号：US18159612
申请日：2023-01-25
发明人： Qian Wang , Jeremy S. Greene
IPC分类号： B60W30/06
CPC分类号： B60W30/06 , B60W2420/42 , B60W2420/52 , B60W2552/50 , B60W2552/53
摘要： This document describes techniques and systems for identifying and selecting a parking spot using radar-centric occupancy grid (RCOG) maps. An example system includes a processor that can identify available parking spots near a host vehicle using sensor data, including a radar occupancy grid (ROG) map. Parking-spot characteristics of each available parking spot are also determined using the sensor data. The processor can then determine a selected parking spot based on the parking-spot characteristics. The processor or another processor can then control operation of the host vehicle to park in the selected parking spot using an assisted-driving or autonomous-driving system and based on the parking-spot characteristics. In this way, the described system can identify, select, and navigate to a parking spot using a RCOG map without having to rely on infrastructure sensors or pass by open spots.
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公开(公告)号：US20240195120A1
公开(公告)日：2024-06-13
申请号：US18079153
申请日：2022-12-12
IPC分类号： H01R13/52 , H01R13/506
CPC分类号： H01R13/521 , H01R13/506
摘要： An electrical connector assembly includes a connector housing defining a plurality of terminal cavities in which electrical terminals attached to wire cables are received, a mat seal formed of a compliant material and having a plurality of seal apertures through which the electrical terminals are inserted into the plurality of terminal cavities, and a seal retainer. The mat seal is disposed between the seal retainer and the connector housing and wherein the seal retainer is connected to the connector housing by a flexible member configured to urge the mat seal into contact with the connector housing and allow longitudinal movement of the seal retainer relative to the connector housing. A method of assembling such an electrical connector is also provided.
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公开(公告)号：US20240195086A1
公开(公告)日：2024-06-13
申请号：US18079742
申请日：2022-12-12
发明人： Nicole LIPTAK , Michael MESSURI
IPC分类号： H01R4/18 , H01R43/048
CPC分类号： H01R4/185 , H01R43/048 , H01R24/40
摘要： A coaxial electrical cable assembly includes a coaxial electrical terminal having an inner ferrule disposed between an insulator surrounding a central conductor of a coaxial cable and a shield conductor of the coaxial cable and an outer ferrule crimped to the shield conductor and in compressive contact therewith. The outer ferrule defines a pair of crimp wings extending from a first side of a base portion of the outer ferrule and a single crimp wing extending from a second side of the base portion opposite the first side. The single crimp wing is disposed within a gap between the pair of crimp wings.
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公开(公告)号：US20240162629A1
公开(公告)日：2024-05-16
申请号：US18176329
申请日：2023-02-28
发明人： Mingjian Li
CPC分类号： H01Q21/065 , H01Q9/045
摘要： This document describes techniques and systems for planar surface features for waveguides and antennas. Two structures are arranged with opposing planar surfaces fixed adjacent to a separation plane dividing a channel (e.g., a waveguide, a feed network) to provide an energy path for propagating electromagnetic energy. Part of the channel is formed between side walls of a recessed groove within one opposing surface; another channel part is formed by an arrangement of surface features spaced and shaped on the other opposing surface. At least two surface features are adjacent protrusions contoured to compliment the sidewalls of the recessed groove. An area on each opposing surface between the recessed groove and the adjacent protrusions is configured to form the energy path through the channel including to prevent energy leakage from the separation plane dividing the channel.
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公开(公告)号：US20240142266A1
公开(公告)日：2024-05-02
申请号：US18045084
申请日：2022-10-07
发明人： Bin Jia
IPC分类号： G01C21/00 , G01S13/931
CPC分类号： G01C21/3885 , G01S13/931
摘要： The techniques and systems herein enable pose correction based on landmarks and barriers. A vehicle pose, one or more radar-occupancy grid (ROG) landmark locations relative to the vehicle, and one or more map landmark locations are received. Based on determined association probabilities of candidate pairs (e.g., treating the map landmark locations as observations), one of the ROG landmark locations and one of the map landmark locations are selected as corresponding to each other. An ROG barrier location and a map barrier location are identified, and ripple point locations are identified that are along the barriers at a radial distance from the landmarks. Based on the ripple point locations and a cost function, a pose correction for the pose is determined. By using the described techniques, reliable vehicle localization can be performed using radar data and a map in a wide array of environments without necessitating other sensors.
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公开(公告)号：US20240134038A1
公开(公告)日：2024-04-25
申请号：US17938876
申请日：2022-10-07
发明人： Shan Zhang , Kanishka Tyagi , Steven Shaw , Narbik Manukian
IPC分类号： G01S13/931 , B60W30/095 , G01S13/89 , G06N3/08
CPC分类号： G01S13/931 , B60W30/0956 , G01S13/89 , G06N3/08 , B60W60/0015 , B60W2420/52
摘要： This document describes techniques and systems for stationary object detection and classification based on low-level radar data. Raw electromagnetic signals reflected off stationary objects and received by a radar system may be preprocessed to produce low-level spectrum data in the form of range-Doppler maps that retain all or nearly all the data present in the raw electromagnetic signals. The preprocessing may also filter non-stationary range-Doppler bins. The remaining low-level spectrum data represents stationary objects present in a field-of-view (FOV) of the radar system. The low-level spectrum data representing stationary objects can be fed to an end-to-end deep convolutional detection and classification network that is trained to classify and provide object bounding boxes for the stationary objects. The outputted classifications and bounding boxes related to the stationary objects may be provided to other driving systems to improve their functionality resulting in a safer driving experience.
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公开(公告)号：US20240077784A1
公开(公告)日：2024-03-07
申请号：US17930030
申请日：2022-09-06
CPC分类号： G03B13/32 , H04N5/23212 , G06V20/56
摘要： Described is phased metalens depth of focus increase for camera focusing. An objective camera lens is configured to provide a focus window across multiple radial zones within a field of view. A camera imager is configured to capture an image of the field of view. When at least two of the radial zones have different back focal lengths relative the imager and the objective lens, a phased metalens is positioned between the objective lens and the camera imager. The metalens is configured to compensate for defocus caused by the different back focal lengths by increasing, across the radial zones within the field of view, a depth of the focus window. The metalens improves focus across the field of view, which prevents variations in objective lens characteristics from reducing image quality.
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公开(公告)号：US11914048B2
公开(公告)日：2024-02-27
申请号：US17242651
申请日：2021-04-28
发明人： Eric P. Knutson , David M. Spell , Linh Pham
CPC分类号： G01S19/25 , G01S5/0009 , G01S19/42 , G01S2205/002
摘要： An illustrative example embodiment of a location determining device includes a processor that is configured to determine an indicated distance between a first detector and a source based on a signal originating at the source and detected by the detector, determine a second distance between the source and a second detector that does not have a direct signal path to the source based on a signal originating at the source and detected by the second detector, and determine a reliability of the indicated distance for determining the location by determining whether the indicated distance corresponds to a direct signal path between the first detector and the source based on a difference between the indicated distance and the second distance.
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