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公开(公告)号:US20230044929A1
公开(公告)日:2023-02-09
申请号:US17554256
申请日:2021-12-17
申请人: AEYE, Inc.
IPC分类号: G01S7/481 , G01S7/4863 , G01S7/484
摘要: A lidar system comprising (1) a first lens having a first field of view (FOV) that receives incident light from the first FOV, (2) a second lens having a second FOV that receives incident light from the second FOV, wherein the second field of view is encompassed by and narrower than the first FOV, and (3) photodetector circuitry that senses incident light passed by the first and second lenses. The photodetector circuitry can include multiple channels of readout circuitry for reading out (1) a first return signal in a first of the channels for detecting a return from a laser pulse shot that targets a location in the second FOV, wherein the first return signal is based on incident light passed by the first lens, and (2) a second return signal in a second of the channels for detecting the return, wherein the second return signal is based on incident light passed by the second lens.
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公开(公告)号:US11467263B1
公开(公告)日:2022-10-11
申请号:US17520189
申请日:2021-11-05
申请人: AEYE, Inc.
发明人: Jordan Greene , Joel Benscoter , Luis Dussan , Allan Steinhardt , Philippe Feru , Igor Polishchuk , Alex Liang
IPC分类号: G01S7/484 , G01S7/481 , G01S17/89 , G01S17/931
摘要: 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.
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公开(公告)号:US20220317249A1
公开(公告)日:2022-10-06
申请号:US17520213
申请日:2021-11-05
申请人: AEYE, Inc.
发明人: Jordan Greene , Joel Benscoter , Luis Dussan , Allan Steinhardt , Philippe Feru , Igor Polishchuk , Alex Liang
摘要: A lidar system comprises (1) a lidar transmitter that switches from a baseline scan pattern to a pulse burst mode in response to a detection of a target in a field of view for the lidar transmitter, wherein the lidar transmitter transmits a pulse burst toward the target when in the pulse burst mode, and (2) a lidar receiver that refines an angle to the target based on returns from the pulse burst.
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公开(公告)号:US11460553B1
公开(公告)日:2022-10-04
申请号:US17483008
申请日:2021-09-23
申请人: AEYE, Inc.
发明人: Philippe Feru , Luis Dussan , Joel Benscoter , Alex Liang , Igor Polishchuk , Allan Steinhardt
IPC分类号: G01S7/481 , G01S7/484 , G01S17/10 , G01S17/931
摘要: A lidar system that includes a laser source and a scannable mirror can be controlled to schedule the firing of laser pulse shots at range points in a field of view. A first mirror motion model can be used to govern the scheduling of the laser pulse shots, and a second mirror motion model can be used to govern when firing commands are to be generated for the scheduled laser pulse shots. The first and second mirror motion models model motion of the scannable mirror over time. A system controller can use the first mirror motion model as a coarse mirror motion model for the purpose of shot scheduling, while a beam scanner controller can use the second mirror motion model as a fine mirror motion model for the purposes of generating firing commands for the laser source.
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公开(公告)号:US11460552B1
公开(公告)日:2022-10-04
申请号:US17482882
申请日:2021-09-23
申请人: AEYE, Inc.
发明人: Philippe Feru , Luis Dussan , Joel Benscoter , Alex Liang , Igor Polishchuk , Allan Steinhardt
IPC分类号: G01S7/481 , G01S7/484 , G01S17/10 , G01S17/931
摘要: A lidar system that includes a variable energy laser source and transmits laser pulses produced by the variable energy laser source toward range points in a field of view can use a laser energy model to model the available energy in the variable energy laser source over time. The timing schedule for laser pulses fired by the lidar system can then be determined using energies that are predicted for the different scheduled laser pulse shots based on the laser energy model. This permits the lidar system to reliably ensure at a highly granular level that each laser pulse shot has sufficient energy to meet operational needs, including when operating during periods of high density/high resolution laser pulse firing. The laser energy model is capable of modeling a variable rate of energy buildup in the variable energy laser source per unit time.
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公开(公告)号:US20220308219A1
公开(公告)日:2022-09-29
申请号:US17490221
申请日:2021-09-30
申请人: AEYE, Inc.
发明人: Naveen Reddy , Allan Steinhardt , Luis Dussan , Joel Benscoter , Alex Liang , Philippe Feru , Igor Polishchuk
摘要: 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 data indicative of environmental conditions for the lidar receiver's field of view to define the detection intervals.
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公开(公告)号:US20220308170A1
公开(公告)日:2022-09-29
申请号:US17482983
申请日:2021-09-23
申请人: AEYE, Inc.
发明人: Philippe Feru , Luis Dussan , Joel Benscoter , James Jung , Alex Liang , Igor Polishchuk , Allan Steinhardt
摘要: A lidar system that includes a laser source can be controlled to schedule the firing of laser pulse shots at range points in a field of view. As part of this scheduling, the system can prioritize which elevations will be targeted with shots before other elevations based on defined criteria. Examples of such criteria can include prioritizing elevations corresponding to a horizon, prioritizing elevations which contain objects of interest (e.g., nearby objects, fast moving objects, objects heading toward the lidar system, etc).
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公开(公告)号:US11474213B1
公开(公告)日:2022-10-18
申请号:US17482947
申请日:2021-09-23
申请人: AEYE, Inc.
发明人: Philippe Feru , Luis Dussan , Joel Benscoter , Alex Liang , Igor Polishchuk , Allan Steinhardt
IPC分类号: G01S7/483 , G01S7/484 , G01S7/481 , G01S17/89 , G01S17/931
摘要: A lidar system that includes a laser source can be controlled to fire laser pulse shots from the laser source at a variable rate of firing those laser pulse shots. The fired laser pulse shots can include scheduled laser pulse shots that are targeted at range points in the field of view. The fired laser pulse shots can also include marker shots that bleed energy out of the laser source in order to avoid reaching a threshold for available energy in the laser source and/or regulate energy amounts for the targeted laser pulse shots. A laser energy model that models how much energy is available from the laser source for laser pulse shots over time can be used to model future available energies for the laser source and determine whether any marker shots should be fired.
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公开(公告)号:US20220308221A1
公开(公告)日:2022-09-29
申请号:US17490265
申请日:2021-09-30
申请人: AEYE, Inc.
发明人: Naveen Reddy , Allan Steinhardt , Luis Dussan , Joel Benscoter , Alex Liang , Philippe Feru , Igor Polishchuk
摘要: 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
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公开(公告)号:US20220308218A1
公开(公告)日:2022-09-29
申请号:US17490204
申请日:2021-09-30
申请人: AEYE, Inc.
发明人: Naveen Reddy , Allan Steinhardt , Luis Dussan , Joel Benscoter , Alex Liang , Philippe Feru , Igor Polishchuk
摘要: 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).
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