DETECTION CIRCUIT OF CLOCK ANOMALY AND METHOD, CLOCK CIRCUIT, CHIP AND RADAR

    公开(公告)号:US20230324460A1

    公开(公告)日:2023-10-12

    申请号:US18131344

    申请日:2023-04-05

    CPC classification number: G01R31/31727

    Abstract: A detection circuit of clock anomaly and method, a clock circuit, a chip, and a radar are provided. The detection circuit of clock anomaly includes: a first clock frequency determining unit, configured to determine a first clock frequency of a received first clock signal; a reference determining unit, configured to determine a reference corresponding to the first clock signal, where the reference is determined based on a second clock signal or a timestamp; and a clock anomaly detection unit, connected to the first clock frequency determining unit and the reference determining unit separately and configured to perform anomaly detection on the first clock signal based on the first clock frequency and the reference. This application can improve reliability of the clock signal, thereby improving personal safety and property safety of a user.

    MASTER CONTROL CHIP OF LIDAR AND LIDAR DEVICE

    公开(公告)号:US20240219540A1

    公开(公告)日:2024-07-04

    申请号:US18539259

    申请日:2023-12-13

    Inventor: Yumin LIAO Yuqi LIU

    CPC classification number: G01S7/497 G01S7/4811 G01S17/86 G01S17/894

    Abstract: The present disclosure proposes a master control chip of a LiDAR and a LiDAR device. The master control chip of the LiDAR includes an execution control unit, a communication interface, an operation management unit, and a function test unit. The execution control unit is configured to connect a ranging module of the LiDAR and to control the ranging module to operate ranging. The operation management unit connects to the execution control unit and the communication interface respectively, and is configured to communicate with a peripheral device through the communication interface and to drive the execution control unit to operate. The function test unit connects to each unit of the master control chip of the LiDAR, and is configured to test function states of the units of the master control chip and to report corresponding state information.

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