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    OPTICAL TRANSCEIVING MODULE AND LASER RADAR
    1.
    发明公开
    OPTICAL TRANSCEIVING MODULE AND LASER RADAR 审中-公开

    公开(公告)号：EP4459318A1

    公开(公告)日：2024-11-06

    申请号：EP22913273.3

    申请日：2022-07-01

    申请人： Hesai Technology Co., Ltd.

    发明人： CHEN, Jie ,  XIANG, Shaoqing

    IPC分类号： G01S7/481 ,  G01S7/4911 ,  G01S7/4912 ,  G01S7/4914 ,  G01S17/88

    摘要： Embodiments of this disclosure provide a light emitter and receiver module and a LiDAR. The light emitter and receiver module includes: a light emitter module and a light receiver module. The light emitter module is configured to emit a detection beam; the light receiver module is configured to receive an echo beam of the detection beam reflected by a target object and convert the echo beam into an electrical signal; and a field of view of the light emitter module configured to overlap vertically with a field of view of the light receiver module. In a first direction, a size of the field of view of the light emitter module is larger than a size of the field of view of the light receiver module, in a second direction, a size of the field of view of the light emitter module is smaller than a size of the field of view of the light receiver module, and the first direction is perpendicular to the second direction. The above solution can increase the design margin of a light-emitting surface of the light emitter module and a light-sensing surface of the light receiver module. In such a case, the light alignment accuracy can be improved, and the consistency and stability of the distance measurement capabilities of various channels can be ensured.

    LASER DRIVER
    2.
    发明公开
    LASER DRIVER 审中-公开

    公开(公告)号：EP4446773A1

    公开(公告)日：2024-10-16

    申请号：EP24163194.4

    申请日：2024-03-13

    申请人： Analog Devices International Unlimited Company

    发明人： HURWITZ, Jonathan ,  DIN, Jose Bernardo

    IPC分类号： G01S7/481 ,  G01S7/4863 ,  G01S7/4865 ,  G01S17/88

    摘要： The present disclosure provides an improved indirect time-of-flight (iToF) system. The iToF system includes an imager and a laser driver system. The laser driver system receives an analog laser control signal from the imager, generating an analog laser driver current based on the analog laser control signal. The analog laser driver current is generated such that any change in an amplitude of the analog laser control signal causes a change in an amplitude of the analog laser drive current. Further, the present disclosure provides improved imagers and laser driver systems for use in an indirect time-of-flight system. An indirect time-of-flight system including a high-side multiplicative push-pull current mirror is also provided.