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    METHODS AND DEVICES FOR PEAK SIGNAL DETECTION
    21.
    发明申请
    METHODS AND DEVICES FOR PEAK SIGNAL DETECTION 有权

    公开(公告)号：US20220171036A1

    公开(公告)日：2022-06-02

    申请号：US17107313

    申请日：2020-11-30

    Applicant: STMicroelectronics (Grenoble 2) SAS

    Inventor： Pascal Mellot

    IPC: G01S7/4865 ,  G01S7/487 ,  G01S17/10

    Abstract: A method includes counting a first set of photons having times of flight that falls within a first time range and being detected during a first time period, determining a second time range based on the first set of photons, the second time range being smaller than the first time range, counting a second set of photons having times of flight that fall within the second time range and being detected during a second time period, and determining a third time range based on the second set of photons, the third time range being smaller than the second time range.

    METHOD FOR DETERMINING THE DISTANCE SEPARATING AN OBJECT AND AN OPTICAL DETECTION SYSTEM, AND CORRESPONDING SYSTEM
    26.
    发明申请
    METHOD FOR DETERMINING THE DISTANCE SEPARATING AN OBJECT AND AN OPTICAL DETECTION SYSTEM, AND CORRESPONDING SYSTEM 审中-公开

    公开(公告)号：US20190285750A1

    公开(公告)日：2019-09-19

    申请号：US16289016

    申请日：2019-02-28

    Applicant: STMicroelectronics (Grenoble 2) SAS

    Inventor： Pascal Mellot

    IPC: G01S17/36 ,  G01S7/481 ,  G01S7/491 ,  G01S17/93

    Abstract: A method, for determining the real distance separating an object and an optical detection system, includes, from several so-called reported distances respectively less than or equal to individual reference distances dependent respectively on modulation frequencies: in a first step, determining an initial deviation coefficient between the reported distances and incrementing the smallest of the reported distances with the corresponding individual reference distance; then in a second step, determining a current deviation coefficient between the current distances obtained in the preceding step and incrementing the smallest of the current distances with the corresponding individual reference distance; and in a third step, repeating the second step until all the current distances exceed a common reference distance greater than the individual reference distances.

    Method of preparing histograms of a sensor signal from an array of sensors, in particular proximity sensors, and corresponding device
    29.
    发明授权
    Method of preparing histograms of a sensor signal from an array of sensors, in particular proximity sensors, and corresponding device 有权

    公开(公告)号：US10241197B2

    公开(公告)日：2019-03-26

    申请号：US15938435

    申请日：2018-03-28

    Applicant: STMicroelectronics (Grenoble 2) SAS

    Inventor： Pascal Mellot

    IPC: G01S7/486 ,  G01S17/02 ,  G01S7/487 ,  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.

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