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    SPAD BASED INDIRECT TIME OF FLIGHT SENSING FROM SOLID STATE TRANSMITTER SCANNING
    2.
    发明公开
    SPAD BASED INDIRECT TIME OF FLIGHT SENSING FROM SOLID STATE TRANSMITTER SCANNING 审中-公开

    公开(公告)号：US20230243940A1

    公开(公告)日：2023-08-03

    申请号：US18126165

    申请日：2023-03-24

    Applicant: STMicroelectronics (Grenoble 2) SAS

    Inventor： Pascal MELLOT

    IPC: G01S7/4914 ,  G01S17/36 ,  H01L31/107 ,  G01S7/4865

    CPC classification number: G01S7/4914 ,  G01S17/36 ,  H01L31/107 ,  G01S7/4865

    Abstract: Described herein is a time-of-flight ranging system and methods for its operation. The system includes an array of single photon avalanche diode (SPAD) pixels and control circuitry. The control circuitry simultaneously accumulates integrated SPAD event data from one cluster of SPAD pixels while integrating SPAD event data from another cluster during different target illuminations. The system also includes first and second VCSEL clusters, each responsible for a different target illumination. By processing and managing the data in this manner, the system can effectively reduce the time used to gather and analyze the event data, leading to faster and more accurate distance measurements.

    WRAP AROUND RANGING METHOD AND CIRCUIT
    4.
    发明申请
    WRAP AROUND RANGING METHOD AND CIRCUIT 审中-公开
    绕线方法和电路

    公开(公告)号：US20160291138A1

    公开(公告)日：2016-10-06

    申请号：US14927717

    申请日：2015-10-30

    Applicant: STMICROELECTRONICS (GRENOBLE 2) SAS

    Inventor： Marc DRADER ,  Pascal MELLOT

    IPC: G01S7/486 ,  G01S17/08

    CPC classification number: G01S7/4865 ,  G01S7/4863 ,  G01S13/227 ,  G01S17/08 ,  G01S17/10

    Abstract: A method is for estimating a distance to an object. The method may include determining, by a ranging device, a first range value based upon a time of flight of first optical pulses having a period of a first duration, and determining, by the ranging device, a second range value based upon a time of flight of second optical pulses having a period of a second duration different from the first duration. The method may include estimating the distance based upon the first and second range values.

    Abstract translation: 一种用于估计到物体的距离的方法。 该方法可以包括由测距设备基于具有第一持续时间的周期的第一光学脉冲的飞行时间确定第一范围值，并且由测距设备基于时间来确定第二范围值 具有与第一持续时间不同的第二持续时间的第二光脉冲的飞行。 该方法可以包括基于第一和第二范围值估计距离。

    INDIRECT TIME OF FLIGHT SENSOR
    5.
    发明申请
    INDIRECT TIME OF FLIGHT SENSOR 有权

    公开(公告)号：US20220196835A1

    公开(公告)日：2022-06-23

    申请号：US17557349

    申请日：2021-12-21

    Applicant: STMicroelectronics (Research & Development) Limited ,  STMicroelectronics (Grenoble 2) SAS

    Inventor： John Kevin MOORE ,  Neale DUTTON ,  Pascal MELLOT

    IPC: G01S17/46 ,  G01S7/481 ,  G01S17/89

    Abstract: An indirect time of flight sensor includes a matrix of pixels, wherein each pixel includes at least two controllable transfer devices. First conductive lines transmit first control signals to the transfer devices, these first signals being provided by a first circuit. A device is provided for illuminating a scene that is divided into at least two first areas. The device successively illuminates each first area. The matrix is similarly divided into at least two second areas. The matrix and illumination device are disposed such that each first area corresponds to one second area. The first circuit provides different first signals to the different second areas.

    METHOD OF PREPARING HISTOGRAMS OF A SENSOR SIGNAL FROM AN ARRAY OF SENSORS, IN PARTICULAR PROXIMITY SENSORS, AND CORRESPONDING DEVICE
    7.
    发明申请
    METHOD OF PREPARING HISTOGRAMS OF A SENSOR SIGNAL FROM AN ARRAY OF SENSORS, IN PARTICULAR PROXIMITY SENSORS, AND CORRESPONDING DEVICE 审中-公开
    从传感器阵列，特殊接近传感器和相应设备中准备传感器信号组织的方法

    公开(公告)号：US20170003382A1

    公开(公告)日：2017-01-05

    申请号：US15050561

    申请日：2016-02-23

    Applicant: STMICROELECTRONICS (GRENOBLE 2) SAS

    Inventor： Pascal MELLOT

    IPC: G01S7/486 ,  G01S17/10

    CPC classification number: G01S7/4865 ,  G01S7/487 ,  G01S17/026 ,  G01S17/10

    Abstract: A method includes preparing a first histogram from the emission of initial optical radiation and including at least one processing iteration performed at a rate of a clock signal having an internal period equal to a sub-multiple of the optical period a sensor signal and a reference signal. Successive iterations of histogram preparation are performed so that in each iteration a time shift of the initial optical radiation is provided by a first fraction of the internal period until at least one portion of the internal period is covered to obtain an additional histogram at the conclusion of each iteration. A numerical combination of the first histogram and additional histograms is performed to obtain a final histogram having a finer time granularity than that of the first histogram.

    Abstract translation: 一种方法包括从发射初始光辐射准备第一直方图，并且包括以具有等于光周期的内周期的时钟信号的速率执行的至少一个处理迭代，所述周期等于传感器信号和参考信号 。 执行直方图准备的连续迭代，使得在每次迭代中，初始光辐射的时间偏移由内部周期的第一部分提供，直到内部周期的至少一部分被覆盖以在结束时获得附加直方图 每次迭代。 执行第一直方图和附加直方图的数值组合以获得具有比第一直方图更精细的时间粒度的最终直方图。

    SPAD BASED INDIRECT TIME OF FLIGHT SENSING FROM SOLID STATE TRANSMITTER SCANNING
    9.
    发明申请
    SPAD BASED INDIRECT TIME OF FLIGHT SENSING FROM SOLID STATE TRANSMITTER SCANNING 有权

    公开(公告)号：US20210341593A1

    公开(公告)日：2021-11-04

    申请号：US16862792

    申请日：2020-04-30

    Applicant: STMicroelectronics (Grenoble 2) SAS)

    Inventor： Pascal MELLOT

    IPC: G01S7/4914 ,  G01S17/36

    Abstract: A time-of-flight ranging system includes an array of single photon avalanche diode (SPAD) pixels, and control circuitry that causes the array of SPAD pixels to integrate SPAD event data received from each SPAD pixel of a first cluster of SPAD pixels during a first illumination of a target, the first cluster of SPAD pixels being a subset of the array of SPAD pixels, and integrate SPAD event data received from each SPAD pixel of a second cluster of SPAD pixels during a second illumination of the target, the second cluster of SPAD pixels being a subset of the array of SPAD pixels. At a start of integration of the SPAD event data received from each SPAD pixel of the second cluster of SPAD pixels, the integrated SPAD event data that was received from each SPAD of the first cluster of SPAD pixels is accumulated.

    OPTICAL SIGNAL GENERATION IN A SPAD ARRAY
    10.
    发明申请
    OPTICAL SIGNAL GENERATION IN A SPAD ARRAY 有权
    SPAD阵列中的光信号产生

    公开(公告)号：US20160291316A1

    公开(公告)日：2016-10-06

    申请号：US14928091

    申请日：2015-10-30

    Applicant: STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITED ,  STMICROELECTRONICS (GRENOBLE 2) SAS

    Inventor： Pascal MELLOT ,  Donald BAXTER

    IPC: G02B26/06 ,  G01J1/44

    CPC classification number: G02B26/06 ,  G01J1/44 ,  G01J2001/4466 ,  G01S7/4865 ,  G01S7/497

    Abstract: A circuit may include a first circuit configured to generate a voltage signal for generating an optical pulse, the voltage signal being generated based on a phase control signal, and an array of single photon avalanche diode (SPAD) cells configured to detect a phase of the optical pulse. The circuit may include a phase control circuit configured to generate the phase control signal based upon a target phase value and the detected phase of the optical pulse.

    Abstract translation: 电路可以包括被配置为产生用于产生光脉冲的电压信号的第一电路，基于相位控制信号产生的电压信号和被配置为检测相位控制信号的相位的单个光子雪崩二极管（SPAD）单元的阵列 光脉冲。 电路可以包括相位控制电路，该相位控制电路被配置为基于目标相位值和检测到的光脉冲的相位产生相位控制信号。

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