公开(公告)号：US11619740B2

公开(公告)日：2023-04-04

申请号：US17490289

申请日：2021-09-30

Applicant: AEYE, Inc.

Inventor： Naveen Reddy ,  Allan Steinhardt ,  Luis Dussan ,  Joel Benscoter ,  Alex Liang ,  Philippe Feru ,  Igor Polishchuk

IPC: G01S7/484 ,  G01S7/497 ,  G01S7/481 ,  G01S17/36 ,  G01J1/44 ,  G01S17/00 ,  G01S17/18 ,  G01S7/4863 ,  B60W40/02 ,  G01S17/931 ,  G01S7/4865 ,  G01S17/89 ,  G01J1/42 ,  B60R1/12 ,  G01S17/10 ,  G01J1/02 ,  G01S17/86

Abstract: A lidar receiver that includes a photodetector circuit can be controlled so that the detection intervals used by the lidar receiver to detect returns from fired laser pulse shots are closely controlled. Such control over the detection intervals used by the lidar receiver allows for close coordination between a lidar transmitter and the lidar receiver where the lidar receiver is able to adapt to variable shot intervals of the lidar transmitter (including periods of high rate firing as well as periods of low rate firing). The detection intervals can vary across different shots, and at least some of the detection intervals can be controlled to be of different durations than the shot intervals that correspond to such detection intervals.

公开(公告)号：US11604264B2

公开(公告)日：2023-03-14

申请号：US17554189

申请日：2021-12-17

Applicant: AEYE, Inc.

Inventor： Joel Benscoter ,  Luis Dussan ,  Allan Steinhardt ,  Philippe Feru ,  Igor Polishchuk

IPC: G01S7/48 ,  G01S7/481 ,  G01S17/26 ,  G01S7/4913 ,  G01S17/931 ,  G01S17/894

Abstract: A lidar system comprises a first lens, a second lens, and a switch. The first lens has a first field of view that receives incident light from the first field of view. The second lens has a second field of view that receives incident light from the second field of view, wherein the second field of view is encompassed by and narrower than the first field of view. The switch controls which of the first and second lenses are used for detecting returns from laser pulse shots based on where the laser pulse shots are targeted in a field of view that encompasses the first and second fields of view. The switch may comprise an optical switch or an electronic switch.

公开(公告)号：US11500093B2

公开(公告)日：2022-11-15

申请号：US17524962

申请日：2021-11-12

Applicant: AEYE, Inc.

Inventor： Luis Dussan ,  Allan Steinhardt ,  Joel Benscoter ,  Todd Gustavson

IPC: G01S17/18 ,  G01S7/4863 ,  G01S17/894

Abstract: A lidar system comprises a photodetector circuit and a signal processing circuit. The photodetector circuit comprises an array of pixels for sensing incident light. The signal processing circuit processes a signal representative of the sensed incident light to detect a reflection of a laser pulse from a target within a field of view. The signal processing circuit can comprise a plurality of matched filters that are tuned to different reflected pulse shapes for detecting pulse reflections within the incident light, and wherein the signal processing circuit applies the signal to the matched filters to determine an obliquity for the target based how the matched filters respond to the applied signal.

公开(公告)号：US11493610B2

公开(公告)日：2022-11-08

申请号：US17483034

申请日：2021-09-23

Applicant: AEYE, Inc.

Inventor： Philippe Feru ,  Luis Dussan ,  Joel Benscoter ,  Alex Liang ,  Igor Polishchuk ,  Allan Steinhardt

IPC: G01S7/48 ,  G01S7/481 ,  G01S17/89 ,  G01S7/484

Abstract: A lidar system that includes a laser source and a scannable mirror can be controlled to adaptively schedule the firing of laser pulse shots at range points in a field of view. A first plurality of laser pulse shots that are fired during a scan of the mirror in a first scan direction can trigger the detection of a region of interest in the field of view. In response to this detection, a second plurality of laser shots targeting the region of interest can be scheduled for the next return scan of the mirror in the opposite direction.

公开(公告)号：US11480680B2

公开(公告)日：2022-10-25

申请号：US17490265

申请日：2021-09-30

Applicant: AEYE, Inc.

Inventor： Naveen Reddy ,  Allan Steinhardt ,  Luis Dussan ,  Joel Benscoter ,  Alex Liang ,  Philippe Feru ,  Igor Polishchuk

IPC: G01S17/36 ,  G01S7/484 ,  G01S17/00 ,  G01J1/44 ,  G01S7/481 ,  G01S7/497 ,  G01J1/42

Abstract: A lidar receiver can employ multiple processors to distribute the workload of processing returns from laser pulse shots. Activation/deactivation times of pixel sets that are used by the lidar receiver to sense returns can be used to define which samples in a return buffer will be used for processing to detect each return, and multiple processors can share the workload of processing these samples in an effort to improve the latency of return detection.

公开(公告)号：US20220317248A1

公开(公告)日：2022-10-06

申请号：US17520189

申请日：2021-11-05

Applicant: AEYE, Inc.

Inventor： Jordan Greene ,  Joel Benscoter ,  Luis Dussan ,  Allan Steinhardt ,  Philippe Feru ,  Igor Polishchuk ,  Alex Liang

IPC: G01S7/484 ,  G01S7/481 ,  G01S17/931 ,  G01S17/89

Abstract: A lidar system comprises an optical amplification laser source, a mirror, and a control circuit. The optical amplification laser source can generate laser pulses for transmission as laser pulses shots into a field of view, the optical amplification laser source comprising a seed laser, a pump laser, and an optical amplifier. The mirror can be is scannable to control where the laser pulse shots are fired into the field of view, and the control circuit can control the seed laser to adjust its seed energy to control energy levels for a first laser pulse shot and a second laser pulse shot within a pulse burst to be transmitted from the optical amplification laser source via the mirror.

公开(公告)号：US11460556B1

公开(公告)日：2022-10-04

申请号：US17482820

申请日：2021-09-23

Applicant: AEYE, Inc.

Inventor： Philippe Feru ,  Luis Dussan ,  Joel Benscoter ,  Il Woong Jung ,  Alex Liang ,  Igor Polishchuk ,  Allan Steinhardt

IPC: G01S7/484 ,  G01S17/89 ,  G01S7/481

Abstract: A lidar system that includes a laser source and transmits laser pulses produced by the laser source toward range points in a field of view via a mirror that scans through a plurality of scan angles can use (1) a laser energy model to model the available energy in the laser source over time and (2) a mirror motion model to model motion of the mirror over time. The mirror can exhibit a variable scan amplitude, and a control circuit can then evaluate whether benefits such as a shorter completion time for firing laser pulse shots at a list of range points can be achieved by changing the mirror's scan amplitude. When making such decisions, the control circuit can take into account a settle time for the variable amplitude mirror that arises from changing the mirror's scan amplitude.

公开(公告)号：US20220308215A1

公开(公告)日：2022-09-29

申请号：US17524962

申请日：2021-11-12

Applicant: AEYE, Inc.

Inventor： Luis Dussan ,  Allan Steinhardt ,  Joel Benscoter ,  Todd Gustavson

IPC: G01S17/18 ,  G01S17/894 ,  G01S7/4863

Abstract: A lidar system comprises a photodetector circuit and a signal processing circuit. The photodetector circuit comprises an array of pixels for sensing incident light. The signal processing circuit processes a signal representative of the sensed incident light to detect a reflection of a laser pulse from a target within a field of view. The signal processing circuit can comprise a plurality of matched filters that are tuned to different reflected pulse shapes for detecting pulse reflections within the incident light, and wherein the signal processing circuit applies the signal to the matched filters to determine an obliquity for the target based how the matched filters respond to the applied signal.

公开(公告)号：US20220308214A1

公开(公告)日：2022-09-29

申请号：US17490213

申请日：2021-09-30

Applicant: AEYE, Inc.

Inventor： Naveen Reddy ,  Allan Steinhardt ,  Luis Dussan ,  Joel Benscoter ,  Alex Liang ,  Philippe Feru ,  Igor Polishchuk

IPC: G01S17/18 ,  G01S7/481 ,  G01S7/4863

Abstract: A lidar receiver that includes a photodetector circuit can be controlled so that the detection intervals used by the lidar receiver to detect returns from fired laser pulse shots are closely controlled. Such control over the detection intervals used by the lidar receiver allows for close coordination between a lidar transmitter and the lidar receiver where the lidar receiver is able to adapt to variable shot intervals of the lidar transmitter (including periods of high rate firing as well as periods of low rate firing). The lidar receiver can use estimates of potential ranges to targeted range points to define the detection intervals.

公开(公告)号：US20220308185A1

公开(公告)日：2022-09-29

申请号：US17490231

申请日：2021-09-30

Applicant: AEYE, Inc.

Inventor： Naveen Reddy ,  Allan Steinhardt ,  Luis Dussan ,  Joel Benscoter ,  Alex Liang ,  Philippe Feru ,  Igor Polishchuk

IPC: G01S7/4863 ,  G01S7/481 ,  G01S7/4865 ,  G01S17/89 ,  G01S17/931 ,  G01S7/484

Abstract: A lidar receiver that includes a photodetector circuit can be controlled so that the detection intervals used by the lidar receiver to detect returns from fired laser pulse shots are closely controlled. Such control over the detection intervals used by the lidar receiver allows for close coordination between a lidar transmitter and the lidar receiver where the lidar receiver is able to adapt to variable shot intervals of the lidar transmitter (including periods of high rate firing as well as periods of low rate firing). The lidar receiver can define the detection intervals based on a region in the field of view that a laser pulse shot is targeting (e.g., setting longer detection intervals for laser pulse shots targeting a horizon region, setting shorter detection intervals for laser pulse shots targeting a region that intersects within the ground within a relatively short distance of the lidar system).