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公开(公告)号：US20180217240A1
公开(公告)日：2018-08-02
申请号：US15748320
申请日：2016-05-10
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Inventor： Chunxin QIU , Letian LIU
CPC classification number: G01S7/4863 , G01S7/4813 , G01S7/4815 , G01S7/4816 , G01S7/4868 , G01S17/10 , G01S17/42
Abstract: A multiline lidar includes: a laser emitting array configured to emit multi-beam laser; a laser receiving array configured to receive multiplexed laser echoes reflected by a target object; an echo sampling device configured to sample the multiplexed laser echo in a time division multiplexing manner and output a sampling data stream; a control system coupled to the laser emitting array, the laser receiving array, and the echo sampling device, respectively; the control system is configured to control operations of the laser emitting array and the laser receiving array, and determine measurement data according to the sampling data stream; and an output device configured to output the measurement data.
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公开(公告)号：US20230043930A1
公开(公告)日：2023-02-09
申请号：US17955460
申请日：2022-09-28
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Inventor： Zhihua CHEN , Letian LIU , Chunxin QIU , Xujun TAN , Xiaojun ZHOU
Abstract: A magnetic ring and a magnetic-ring-based system are provided. The magnetic ring includes an inner magnetic ring including an inner coil and an outer magnetic ring corresponding to the inner magnetic ring and including an outer coil facing the inner coil along a circumference of the outer magnetic ring. The inner magnetic ring is connected with a stationary part in a range-finding system, and the outer magnetic ring is connected with a rotating part in the range-finding system. In response to a rotation of the rotating part with respect to the stationary part, the outer magnetic ring rotates with respect to the inner magnetic ring to generate a magnetic field between the inner coil and the outer coil to perform one of data transmission or power transmission in the range-finding system.
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公开(公告)号：US20200150237A1
公开(公告)日：2020-05-14
申请号：US16597814
申请日：2019-10-09
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Inventor： Chunxin QIU , Letian LIU
IPC: G01S7/481 , G01S17/931 , G01S7/48
Abstract: Embodiments of the disclosure provide a LiDAR assembly. The LiDAR assembly includes a central LiDAR device configured to detect an object at or beyond a first predetermined distance from the LiDAR system and an even number of multiple auxiliary LiDAR devices configured to detect an object at or within a second predetermined distance from the LiDAR system. The LiDAR assembly also includes a mounting apparatus configured to mount the central and auxiliary LiDAR devices. Each of the central and auxiliary LiDAR devices is mounted to the mounting apparatus via a mounting surface. A first mounting surface between the central LiDAR device and the mounting apparatus has an angle with a second mounting surface between one of the auxiliary LiDAR devices and the mounting apparatus.
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公开(公告)号：US20230243935A1
公开(公告)日：2023-08-03
申请号：US18133451
申请日：2023-04-11
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Inventor： Chunxin QIU , Letian LIU
CPC classification number: G01S7/484 , G01S7/4876 , G01S7/4817 , G01S7/4868 , G01S7/497 , G01S7/4813 , G01S17/10 , G01S7/499
Abstract: The present application discloses improvements that can be implemented in a laser detection and ranging (LiDAR) system to achieve accurate obstacle detection and to reduce measurement errors. A LiDAR system uses laser beams to scan a surrounding region to detect and identify objects. In some embodiments, the LiDAR control system is configured to adjust the mirror system based on the scanning result. The LiDAR control system may identify a selected object inside the scanning region from the scanning result, and report an error message when no object detected in the selected region.
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5.发明申请公开(公告)号：US20200103505A1
公开(公告)日：2020-04-02
申请号：US16693157
申请日：2019-11-22
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Inventor： Chunxin QIU , Letian LIU
IPC: G01S7/481 , G01S7/4863
Abstract: The present disclosure provides a multi-beam LiDAR system. The multi-beam LiDAR system includes a transmitter having an array of laser emitters. Each laser emitter is configured to emit a laser beam. The laser emitter array includes a first type of laser emitter board and a second type of laser emitter board. The second type of laser board includes two or more laser emitters. The second type of laser emitter board is not parallel to a predefined plane.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20230333248A1
公开(公告)日：2023-10-19
申请号：US18207648
申请日：2023-06-08
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Inventor： Letian LIU , Shen JIANG , Chunxin QIU
CPC classification number: G01S17/08 , G01S7/4814 , G01S7/4816
Abstract: The present application discloses an optical signal processing circuit for a Lidar. The optical signal processing circuit includes an optical processing circuit, a gain control circuit connected to the optical processing circuit, and a controller connected to the gain control circuit. The optical processing circuit includes an optical sensor and an amplification circuit. The optical sensor is configured to convert an optical signal to a photocurrent signal, and the amplification circuit is configured to convert and amplify the photocurrent signal to a voltage signal. The controller adjusts a gain of the optical processing circuit via the gain control circuit and based on an amplitude of the voltage signal.
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7.发明申请公开(公告)号：US20210270965A1
公开(公告)日：2021-09-02
申请号：US16758848
申请日：2019-11-18
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Inventor： Letian LIU , Shen JIANG , Chunxin QIU
Abstract: The present application relates to a Lidar that includes a laser transmitter to emit a laser beam; an optical processing circuit. The optical processing circuit is configured to receive the laser beam reflected from a target object and convert the reflected laser beam to a photocurrent signal, and convert the photocurrent signal from an optical receiver to a voltage signal. The Lidar also includes a gain control circuit, connecting to the optical processing circuit; and a controller, connecting to the gain control circuit, to adjust a gain of the optical processing circuit via the gain control circuit and based on an amplitude of the voltage signal.
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公开(公告)号：US20200319339A1
公开(公告)日：2020-10-08
申请号：US15930426
申请日：2020-05-12
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Inventor： Zhihua CHEN , Letian LIU , Chunxin QIU , Xujun TAN , Xiaojun ZHOU
IPC: G01S17/88 , G01S7/481 , G01S7/487 , H04B10/112 , H04B10/40
Abstract: The present disclosure provides a range-finding system capable of data communication. The range-finding system includes a rangefinder for acquiring ranging data, a magnetic ring unit having at least two communication channels, and a data processing and control unit. Each communication channel includes a magnetic ring. The magnetic ring unit transmits the ranging data as downlink data from the rangefinder to the data processing and control unit via one or more of the communication channels.
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公开(公告)号：US20200209367A1
公开(公告)日：2020-07-02
申请号：US16726035
申请日：2019-12-23
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Inventor： Chunxin QIU , Letian LIU
IPC: G01S7/497 , G01S17/931 , G01S17/894 , G01S7/481
Abstract: The present disclosure provides a multi-beam LiDAR system. The multi-beam LiDAR system includes a transmitter having an array of laser emitters. Each laser emitter is configured to emit a laser beam. The multi-beam LiDAR system also includes a receiver having an array of photodetectors. Each photodetector is configured to receive at least one return beam that is reflected by an object from one of the laser beams. The laser emitter array includes a plurality of laser emitter boards perpendicular to a horizontal plane. Each laser emitter board has a plurality of laser emitters. The plurality of laser emitters in the laser emitter array are staggered along a vertical direction. The photodetector array includes a plurality of columns of photodetectors. One of the laser emitter boards corresponds to one column of photodetectors.
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公开(公告)号：US20240201334A1
公开(公告)日：2024-06-20
申请号：US18518411
申请日：2023-11-22
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Inventor： Jing WANG , Chunxin QIU , Letian LIU
IPC: G01S7/481 , G01S17/931
CPC classification number: G01S7/4813 , G01S7/4817 , G01S17/931
Abstract: This application discloses a frequency modulated continuous wave LiDAR and an autonomous driving device. The LiDAR includes a light source module, a silicon photonic chip and a refraction module, and the silicon photonic chip includes a light splitting module, a coupling module and multiple transceiving units. The light splitting module receives a laser beam coupled into the silicon photonic chip, divides the laser beam into multiple beams of detection light, and transmits the multiple beams of detection light to corresponding multiple transceiving units, and the transceiving units emit the received detection light outward. The refraction module is configured to refract the detection light emitted by the multiple transceiving units to emit multiple beams of detection light in a staggered manner in a second direction, where the second direction is a direction perpendicular to the terminal surface of the transceiving unit.
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