公开(公告)号：US20240210533A1

公开(公告)日：2024-06-27

申请号：US18542765

申请日：2023-12-17

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Jie LUO

IPC: G01S7/4861 ,  G01S7/481

CPC classification number: G01S7/4861 ,  G01S7/4814 ,  G01S7/4816

Abstract: Embodiments of this application disclose an AC coupling circuit, a laser detection module, and a LiDAR. The AC coupling circuit is configured to be accessed by a first AC signal and block a DC component in the first AC signal to output a second AC signal, and the AC coupling circuit includes an impedance matching circuit and a baseline drift reduction circuit. The impedance matching circuit has a signal input terminal configured to be accessed by the first AC signal, and the impedance matching circuit is configured to perform matching on transmission impedance of the AC coupling circuit. The baseline drift reduction circuit is connected with the impedance matching circuit. The baseline drift reduction circuit uses the symmetry of a baseline drift in the AC coupling circuit to reduce the baseline drift in the AC coupling circuit.

公开(公告)号：US20240219530A1

公开(公告)日：2024-07-04

申请号：US18395702

申请日：2023-12-25

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Jie LUO ,  Huazhou CHEN ,  Shen JIANG

IPC: G01S7/4863

CPC classification number: G01S7/4863

Abstract: This application pertains to the field of laser detection, and specifically, relates to a laser detector, including multiple optical detection units and a received signal processing module, where the multiple optical detection units are divided into at least a first block and a second block, a first bias voltage is input into each optical detection unit in the first block, a second bias voltage is input into each optical detection unit in the second block, and the first bias voltage is different from the second bias voltage. The received signal processing module is configured to process a received incident optical signal detected by the first block and the second block and provide an output signal.

公开(公告)号：US20250093465A1

公开(公告)日：2025-03-20

申请号：US18784947

申请日：2024-07-26

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Jie LUO

IPC: G01S7/48 ,  G01S7/481 ,  G01S7/4865 ,  G01S17/58

Abstract: The embodiments of the present application disclose a laser detection device. The laser detection device includes a laser emitter, a laser detector, and a laser echo signal processing circuitry. The laser emitter emits a laser to the target object. The laser detector receives an echo signal reflected by the target object. The laser echo signal processing circuitry samples the echo signal. The laser echo signal processing circuitry includes a controller, a time digital converter, and a dynamic threshold value generation circuit. The controller outputs a digital signal to the dynamic threshold value generation circuit. The dynamic threshold value generation circuit generates at least two analog threshold signals to the time digital converter. The time digital converter samples the echo signal based on the threshold signals.

公开(公告)号：US20240219529A1

公开(公告)日：2024-07-04

申请号：US18389753

申请日：2023-12-19

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Huazhou CHEN ,  Jie LUO ,  Yajun DU

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

CPC classification number: G01S7/484 ,  G01S17/89 ,  G01S17/931

Abstract: This application is applicable to the field of LiDAR technologies, and provides a LiDAR controlling method and apparatus, a terminal device. The method includes: grouping all parallel channels of the LiDAR based on physical intervals between the parallel channels; and controlling parallel channels in different groups to emit detection signals based on an intergroup emission policy, where the intergroup emission policy is to control a time interval between emission times of the parallel channels in the different groups to be a first preset time interval, and the first preset time interval is greater than a recovery time of a sensor between two adjacent signal emissions.