中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

64 records (took 0.029 seconds)

    Method for measuring a time of flight
    2.
    发明授权
    Method for measuring a time of flight 有权

    公开(公告)号：US11119197B2

    公开(公告)日：2021-09-14

    申请号：US16727366

    申请日：2019-12-26

    Applicant: STMicroelectronics (Grenoble 2) SAS

    Inventor： Pascal Mellot

    IPC: G01S7/4865 ,  G01S7/486 ,  G01S7/484 ,  G01S17/10 ,  G01S13/22

    Abstract: A method of measuring the phase of a response signal relative to a periodic excitation signal, comprises the steps of producing for each cycle of the response signal two transitions synchronized to a clock and framing a reference point of the cycle; swapping the two transitions to confront them in turns to the cycles of the response signal; measuring the offsets of the confronted transitions relative to the respective reference points of the cycles; performing a delta-sigma modulation of the swapping rate of the two transitions based on the successive offsets; and producing a phase measurement based on the duty cycle of the swapping rate.

    RANGING DEVICE WITH IMAGING CAPABILITY
    9.
    发明申请
    RANGING DEVICE WITH IMAGING CAPABILITY 审中-公开

    公开(公告)号：US20170139041A1

    公开(公告)日：2017-05-18

    申请号：US15169489

    申请日：2016-05-31

    Applicant: STMicroelectronics (Grenoble 2) SAS

    Inventor： Marc Drader ,  Pascal Mellot

    IPC: G01S7/486 ,  G01S17/10 ,  H01L27/144

    CPC classification number: G01S7/4863 ,  G01S7/4865 ,  G01S7/487 ,  G01S7/4914 ,  G01S7/4915 ,  G01S7/493 ,  G01S17/10 ,  G01S17/36 ,  H01L27/1446

    Abstract: A ranging device includes an array of photon detection devices adapted to receive an optical signal reflected by an object in an image scene. First and second logic devices are adapted to respectively combine the outputs of first and second pluralities of the photon detection devices. A first range detection circuit is coupled to outputs of the first and second logic devices and a first counter is coupled to the output of the first logic device and adapted to generate a first pixel value by counting events generated by the first plurality of photon detection devices. A second counter is coupled to the output of the second logic device and is adapted to generate a second pixel value by counting events generated by the second plurality of photon detection devices. The first and second pixel values may be used in estimating a range to the object in the image scene.

    RANGING DEVICE READ-OUT CIRCUIT
    10.
    发明申请
    RANGING DEVICE READ-OUT CIRCUIT 审中-公开

    公开(公告)号：US20170139040A1

    公开(公告)日：2017-05-18

    申请号：US15169464

    申请日：2016-05-31

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

    Inventor： Pascal Mellot ,  Stuart McLeod ,  Marc Drader

    IPC: G01S7/486 ,  G01S17/10 ,  H01L27/144

    Abstract: A ranging device includes an array of photon detection devices that receive an optical signal reflected by an object in an image scene and first and second logic devices to respectively combine the outputs of first and second pluralities of the photon detection devices. First and second counter circuits are respectively coupled an output of the first and second logic devices and generate first and second count values respectively by counting the photon detection events generated by the first and second pluralities of photon detection devices. A range estimation circuit estimates the range of the object by estimating the timing of one or more pulses of said optical signal based on the first and second count values.

Patent Agency Ranking