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公开(公告)号：US12181582B2
公开(公告)日：2024-12-31
申请号：US17140864
申请日：2021-01-04
Applicant: AEVA, INC.
Inventor： Kumar Bhargav Viswanatha , Jose Krause Perin , Rajendra Tushar Moorti , Mina Rezk
IPC: G01S17/00 , G01S7/481 , G01S17/34 , G01S17/89 , G01S17/931
Abstract: A light detection and ranging (LIDAR) system including a processor to receive a return signal from a target based on an optical beam transmitted towards the target and receive a baseband signal in a time domain based on the return signal. The processor of the LIDAR system further to produce a comparison of signal peaks of the baseband signal with an estimate of LIDAR system noise in the frequency domain, and identify targets based on the comparison.
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公开(公告)号：US20240295642A1
公开(公告)日：2024-09-05
申请号：US18662060
申请日：2024-05-13
Applicant: Aeva, Inc.
Inventor： Mina Rezk
CPC classification number: G01S7/499 , G01S17/26 , G01S17/58 , G02B27/283
Abstract: A light detection and ranging (LiDAR) system includes a beam combining component to combine a first optical beam including a first polarization and a second optical beam including a second polarization into a single spatial mode optical beam, and a first beam splitting component to split the single spatial mode optical beam into a plurality of single spatial mode optical beams.
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3.发明公开
公开(公告)号：US20240295637A1
公开(公告)日：2024-09-05
申请号：US18595040
申请日：2024-03-04
Applicant: AEVA, INC.
Inventor： Murat Ozbas , Bryce Bradford , Adrit Lath , Matt Last
CPC classification number: G01S7/4817 , G01D5/30 , G01D2205/20
Abstract: A LIDAR system includes an actuator assembly and actuator position tracking circuitry. The actuator position tracking circuity includes a light emitting diode (LED) to emit a first signal toward an actuator, a photodiode to receive a second signal based on a position of the actuator and generate an output signal, and at least one front-end electronics to produce a low-impedance analog electrical signal based on the output signal.
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公开(公告)号：US12055636B2
公开(公告)日：2024-08-06
申请号：US18308271
申请日：2023-04-27
Applicant: AEVA, INC.
Inventor： Cameron Howard , Sawyer Isaac Cohen , Keith Gagne , Bradley Scot Levin , Pierre Hicks
CPC classification number: G01S17/89 , G01S7/4817 , G01S17/32
Abstract: A system and method receive a first beam pattern from an optical source that includes optical beams transmitted towards a target. The system and method measure a first vertical angle between at least two of the optical beams along a first axis relative to the FMCW LIDAR system. The system and method calculate a second beam pattern based on the first vertical angle and a pivot point. The second beam pattern produces a second vertical angle between the two optical beams. The system and method adjust one or more components from a first position that forms the first beam pattern to a second position that forms the second beam pattern for transmission towards the target. The system and method receive one or more return optical beams from the target, based on the second beam pattern, to produce a plurality of points to form the point cloud.
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公开(公告)号：US20240255641A1
公开(公告)日：2024-08-01
申请号：US18104006
申请日：2023-01-31
Applicant: Aeva, Inc.
Inventor： Cameron Howard , Keith Gagne , Bradley Scot Levin
CPC classification number: G01S17/34 , G01S7/4817 , G02B26/105 , G02B26/123 , G01S17/931
Abstract: A system including a multi-sided scanner including a plurality of sides, and optical source to transmit, at a first angle, an optical beam towards a first side of the plurality of sides to produce a first adjusted beam transmitted within the multi-sided scanner towards a second side of the plurality of sides to produce a second adjusted beam. A trajectory of the second adjusted beam traverses a third side of the plurality of sides to exit the multi-sided scanner to produce a first FOV portion. The optical source is to transmit, at the second angle, the optical beam towards the first side to produce a third adjusted beam transmitted within the multi-sided scanner towards the second side to produce a fourth adjusted beam. A trajectory of the fourth adjusted beam traverses the third side of the plurality of sides to exit the multi-sided scanner to produce a second FOV portion.
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6.发明公开
公开(公告)号：US20240255626A1
公开(公告)日：2024-08-01
申请号：US18162426
申请日：2023-01-31
Applicant: Aeva, Inc.
Inventor： Eric Bohannon , Bryce Bradford , Garret Phillips
IPC: G01S7/4912 , G01S7/4911 , H03L7/08
CPC classification number: G01S7/4917 , G01S7/4911 , H03L7/08
Abstract: Aspects of the present disclosure provide light detection and ranging (LIDAR) systems and methods for using an electro-optical phase-locked loop (EOPLL) and algorithmic frequency locking hybrid driver to lock a beat frequency to the reference frequency. By using the hybrid driver, the present disclosure solves an architectural problem of LIDAR systems related to limited (e.g., narrow and applicable) reference frequency ranges, and provides a flexible and broad reference frequency range coverage. The present disclosure thus allows LIDAR systems to use the hybrid laser driver to effectively change hardware configurations to achieve desired reference frequencies.
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公开(公告)号：US12044806B2
公开(公告)日：2024-07-23
申请号：US17693641
申请日：2022-03-14
Applicant: Aeva, Inc.
Inventor： Richard L. Sebastian , Kendall L. Belsley , Stephan Schulz
IPC: G01S7/4911 , G01J9/00 , G01J9/02 , G01S7/4915 , G01S7/497 , G01S17/34 , G02B26/06 , H01S3/00 , H01S3/10 , H01S3/13
CPC classification number: G01S7/4911 , G01J9/00 , G01J9/02 , G01S7/4915 , G01S7/497 , G01S17/34 , G02B26/06 , H01S3/0085 , H01S3/10053 , H01S3/1307
Abstract: Various implementations of the invention compensate for “phase wandering” in tunable laser sources. Phase wandering may negatively impact a performance of a lidar system that employ such laser sources, typically by reducing a coherence length/range of the lidar system, an effective bandwidth of the lidar system, a sensitivity of the lidar system, etc. Some implementations of the invention compensate for phase wandering near the laser source and before the output of the laser is directed toward a target. Some implementations of the invention compensate for phase wandering in the target signal (i.e., the output of the laser that is incident on and reflected back from the target). Some implementations of the invention compensate for phase wandering at the laser source and in the target signal.
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公开(公告)号：US12019192B2
公开(公告)日：2024-06-25
申请号：US18059249
申请日：2022-11-28
Applicant: AEVA, INC.
Inventor： Esha John , Jose Krause Perin , Kumar Bhargav Viswanatha , Rajendra Tushar Moorti , James Nakamura , Carlo Giustini
IPC: G01S7/4912 , G01S7/481 , G01S17/931
CPC classification number: G01S7/4912 , G01S7/4817 , G01S17/931
Abstract: A light detection and ranging (LIDAR) system to transmit optical beams including at least up-chirp frequency and at least one down-chirp frequency toward targets in a field of view of the LIDAR system and receive returned signals of the up-chirp and the down-chirp as reflected from the targets. The LIDAR system may determine multiple frequency peaks associated with the target based on the returned signals. Upon determining that at least one of the multiple frequency peaks is within one or more sets of frequency ranges, the LIDAR system may combine an in-phase signal and a quadrature signal of the returned signals to generate a complex signal that enables determining whether the at least one of the multiple frequency peaks is associated with ghosting. Upon determining to be free from ghosting, the LIDAR system determines one or more of the target location, a target velocity, and a target reflectivity.
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公开(公告)号：US11967179B2
公开(公告)日：2024-04-23
申请号：US17164577
申请日：2021-02-01
Applicant: Aeva, Inc.
Inventor： Raghavender Reddy Jillela , Trina D. Russ
CPC classification number: G06V40/171 , G06T19/20 , G06V10/443 , G06V40/166 , G06V40/172
Abstract: A system and method for performing facial recognition is described. In some implementations, the system and method identify points of a three-dimensional scan that are associated with occlusions, such as eyeglasses, to a face of a target subject and remove the identified points from the three-dimensional scan.
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公开(公告)号：US20240118428A1
公开(公告)日：2024-04-11
申请号：US18543893
申请日：2023-12-18
Applicant: AEVA, INC.
Inventor： Jose Krause Perin , Kumar Bhargav Viswanatha , Rajendra Tushar Moorti , Mina Rezk
IPC: G01S17/931 , G01S7/481 , G01S17/34 , G01S17/89
CPC classification number: G01S17/931 , G01S7/4817 , G01S17/34 , G01S17/89 , G01S2007/4975
Abstract: A light detection and ranging (LIDAR) system, includes a memory, and a processor, operatively coupled to the memory, to identify an obstruction of the LIDAR system based on a comparison of a frequency of an energy peak generated from a return signal to a threshold frequency and mitigate the obstruction.
