公开(公告)号：US11822016B2

公开(公告)日：2023-11-21

申请号：US17525034

申请日：2021-11-12

Applicant: AEYE, Inc.

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

IPC: G01S7/4863 ,  G01S17/931 ,  G01S7/4865 ,  G01S7/484 ,  G01S17/18 ,  G01S17/894 ,  G01S7/481 ,  G01S17/89 ,  G02B26/08 ,  G02B27/00 ,  H01S3/00 ,  H01S3/067 ,  H01S3/094

CPC classification number: G01S7/4863 ,  G01S7/484 ,  G01S7/4814 ,  G01S7/4816 ,  G01S7/4817 ,  G01S7/4865 ,  G01S17/18 ,  G01S17/89 ,  G01S17/894 ,  G01S17/931 ,  G02B26/0816 ,  G02B27/0081 ,  H01S3/0071 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/094038

Abstract: A lidar system comprises (1) an array of pixels for sensing incident light and (2) a circuit for processing 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 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 circuit (1) applies the signal to the matched filters to determine an obliquity for the target based how the matched filters respond to the applied signal and (2) determines a correction angle based on the determined target obliquity, the correction angle for orienting the field of view to a frame of reference in response to a tilting of the lidar system. In an example embodiment, the circuit can comprise a signal processing circuit that performs the signal application and correction angle determination operations. In another example embodiment, the circuit can comprise (1) a signal processing circuit that performs the signal application operation and (2) a receiver controller circuit that performs the correction angle determination operation.

公开(公告)号：US20220308187A1

公开(公告)日：2022-09-29

申请号：US17525006

申请日：2021-11-12

Applicant: AEYE, Inc.

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

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

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 matched filter corresponding to a retro-reflective target that is tuned to a reflected pulse shape that exhibits a vertical clipping relative to a transmitted pulse shape for the laser pulse that is indicative of the retro-reflective target, and wherein the signal processing circuit determines a retro-reflector status for the target based how the matched filter responds to the applied signal.

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：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：US20220308172A1

公开(公告)日：2022-09-29

申请号：US17525034

申请日：2021-11-12

Applicant: AEYE, Inc.

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

IPC: G01S7/484 ,  G01S7/481 ,  G01S17/89 ,  G01S17/931 ,  G02B26/08 ,  G02B27/00

Abstract: A lidar system comprises (1) an array of pixels for sensing incident light and (2) a circuit for processing 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 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 circuit (1) applies the signal to the matched filters to determine an obliquity for the target based how the matched filters respond to the applied signal and (2) determines a correction angle based on the determined target obliquity, the correction angle for orienting the field of view to a frame of reference in response to a tilting of the lidar system. In an example embodiment, the circuit can comprise a signal processing circuit that performs the signal application and correction angle determination operations. In another example embodiment, the circuit can comprise (1) a signal processing circuit that performs the signal application operation and (2) a receiver controller circuit that performs the correction angle determination operation.