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23 条记录 (耗时 0.014 秒)

    TIME-OF-FLIGHT SENSOR
    1.
    发明公开
    TIME-OF-FLIGHT SENSOR 审中-公开

    公开(公告)号：EP4279958A1

    公开(公告)日：2023-11-22

    申请号：EP22305725.8

    申请日：2022-05-17

    申请人： STMicroelectronics (Research & Development) Limited ,  STMICROELECTRONICS (GRENOBLE 2) SAS

    发明人： DUTTON, Neale ,  STECKEL, Jonathan

    IPC分类号： G01S17/89 ,  H04M1/00 ,  G01S7/486 ,  H01L31/0352

    摘要： The present disclosure relates to a time-of-flight sensor, ToF (100) comprising, on a same base substrate (122), a light emitter (108) emitting light (118) into an image scene (50), a reference sensor (106) detecting light emitted by the light emitter (108), and a signal reception sensor (104) array separated from the light emitter (108) by an optical barrier (126), the optical barrier (126) preventing light emitted by the light emitter (108) from directly reaching the signal reception sensor (104) array, the signal reception sensor (104) array detecting light (124) reflected by the image scene (50), wherein the reference sensor (106) and the signal reception sensor (104) array are based on semiconductor nanoparticles. The optical barrier (126) is arranged between the upper surface (114) of the base substrate (122) and an inner surface of a packaging unit (102). The base substrate (122) may also comprise a control circuit (112). Alternatively, a device substrate comprises the control circuit (112). The semiconductor nanoparticles can be quantum dots, quantum wires, quantum rods, or quantum wells. The light emitter (108), which may be a vertical-cavity surface-emitting layer, VCSEL, may also be based on semiconductor nanoparticles. The semiconductor nanoparticle layer or layers of the reference sensor (106), of the signal reception sensor (104), and of the emitter (108) are for example formed of InAs or InSb or InAs x P x or InAs x Sb x . The device (100) is for example implemented under a touch display screen of a mobile communication device.

    QUANTUM FILM DIRECT TIME OF FLIGHT SENSOR CIRCUIT FOR LOW COST SHORT WAVE INFRARED OPERATION
    4.
    发明公开
    QUANTUM FILM DIRECT TIME OF FLIGHT SENSOR CIRCUIT FOR LOW COST SHORT WAVE INFRARED OPERATION 审中-公开

    公开(公告)号：EP4279960A1

    公开(公告)日：2023-11-22

    申请号：EP23171098.9

    申请日：2023-05-02

    申请人： STMicroelectronics (Research & Development) Limited

    发明人： DUTTON, Neale

    IPC分类号： G01S17/894 ,  G01S7/481 ,  G01S7/484 ,  G01S7/4863 ,  G01S7/497 ,  G01S7/487

    摘要： A time-of-flight system includes an emitter-circuit generating and directing pulses of light toward a target, and a receiver-circuit including a photodetector coupled between a bias node and a sensing node to detect pulses that have reflected off the target, a comparison circuit comparing a sense voltage at the sensing node to a reference, a timing measurement circuit measuring elapsed time between generation of a given pulse and detection thereof after reflection off the target, and a programmable current sink that sinks a current from the sensing node equal to a portion of a photocurrent generated by the photodetector due to detection of ambient light. A timing-generation circuit synchronizes generation of the pulses and measurement of elapsed time by the timing circuit. A processor adjusts a magnitude of the current sunk from the sensing node based upon output of the comparison circuit when the emitter circuit is deactivated.

    TIME DIGITAL CONVERTER AND TOF MEASUREMENT
    5.
    发明公开
    TIME DIGITAL CONVERTER AND TOF MEASUREMENT 审中-公开

    公开(公告)号：EP3889694A1

    公开(公告)日：2021-10-06

    申请号：EP21164823.3

    申请日：2021-03-25

    申请人： STMicroelectronics (Research & Development) Limited

    发明人： DUTTON, Neale ,  MOORE, John Kevin

    IPC分类号： G04F10/00 ,  G01S7/4863 ,  G01S7/4865

    摘要： A method of executing a ToF measurement includes: receiving a first plurality of digital codes from a TDC; generating a coarse histogram from the first plurality of digital codes; detecting a peak coarse bin from the plurality of coarse bins; after receiving the first plurality of digital codes, receiving a second plurality of digital codes from the TDC; and generating a fine histogram from the second plurality of digital codes based on the detected peak coarse bin, where a fine histogram depth range is narrower than a coarse histogram depth range, where a lower fine histogram depth is lower or equal to a lower coarse peak depth, and where a higher fine histogram depth is higher or equal to a higher coarse peak depth.

    TIME OF FLIGHT SENSING FOR BRIGHTNESS AND AUTOFOCUS CONTROL IN IMAGE PROJECTION DEVICES
    6.
    发明公开
    TIME OF FLIGHT SENSING FOR BRIGHTNESS AND AUTOFOCUS CONTROL IN IMAGE PROJECTION DEVICES 审中-公开
    图像投影装置中用于亮度和自动聚焦控制的飞行时间

    公开(公告)号：EP3301509A1

    公开(公告)日：2018-04-04

    申请号：EP17156585.6

    申请日：2017-02-17

    申请人： STMicroelectronics (Research & Development) Limited ,  STMicroelectronics, Inc.

    发明人： DUTTON, Neale ,  YANG, Xiaoyong ,  CHANNON, Kevin

    IPC分类号： G03B21/53 ,  G03B21/20 ,  H04N9/31

    CPC分类号： H04N9/3155 ,  G01S7/4865 ,  G01S17/10 ,  G03B21/142 ,  G03B21/2053 ,  G03B21/53 ,  H04N9/3102 ,  H04N9/3129 ,  H04N9/315 ,  H04N9/3161 ,  H04N9/317 ,  H04N9/3185 ,  H04N9/3194

    摘要： An image projection device, such as a pico projector or LCD projector, includes image projection circuitry configured to generate a light beam having a power. The image projection circuitry projects the light beam onto and focuses the light beam on a projection surface located an imaging distance from the image projection circuitry. A time-of-flight sensor is configured to sense the imaging distance between the image projection circuitry and the projection surface and to generate an imaging distance signal indicating the sensed imaging distance. Control circuitry is coupled to the image projection circuitry and to the time-of-flight sensor and is configured to adjust the power and the focus of the light beam based upon the imaging distance signal.

    摘要翻译： 诸如微型投影仪或LCD投影仪之类的图像投影设备包括图像投影电路，该图像投影电路被配置成生成具有功率的光束。 图像投影电路将光束投射到位于距图像投影电路成像距离的投影表面上并将光束聚焦在该投影表面上。 飞行时间传感器被配置为感测图像投影电路与投影表面之间的成像距离并且生成指示所感测的成像距离的成像距离信号。 控制电路被耦合到图像投影电路和飞行时间传感器，并且被配置为基于成像距离信号来调节光束的功率和焦点。

    DEPTH MAP SENSOR WITH BIN ROTATION
    9.
    发明公开
    DEPTH MAP SENSOR WITH BIN ROTATION 审中-公开

    公开(公告)号：EP3816662A1

    公开(公告)日：2021-05-05

    申请号：EP19306416.9

    申请日：2019-10-31

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

    发明人： HRISTOVA, Ivelina ,  MELLOT, Pascal ,  DUTTON, Neale

    IPC分类号： G01S7/4863 ,  G01S7/4865 ,  G01S7/497 ,  G01S17/894

    摘要： The present disclosure relates to a depth map sensor comprising: a first array (102) of first pixels, each first pixel comprising at least one first photodetector associated with a pixel circuit comprising a plurality of first bins for accumulating events; a clock source (504) configured to generate a plurality of phase-shifted clock signals; and a first circuit having a plurality of first output lines coupled to the first array of first pixels, the first circuit receiving the plurality of phase-shifted clock signals, wherein: the first circuit comprises a first block (506-1), which propagates the plurality of phase-shifted clock signals to a second block (508-1) during a first period determined by a first enable signal (RTN_ENABLE_OUTPUT); and the second block is configured to select to which of the plurality of first output lines each of the plurality of phase-shifted clock signals is applied.

    PHOTODIODE ARRAY SENSOR WITH DISABLING OF DEFECTIVE PIXELS
    10.
    发明公开
    PHOTODIODE ARRAY SENSOR WITH DISABLING OF DEFECTIVE PIXELS 审中-公开

    公开(公告)号：EP3702805A1

    公开(公告)日：2020-09-02

    申请号：EP19160078.2

    申请日：2019-02-28

    申请人： STMicroelectronics (Research & Development) Limited

    发明人： DUTTON, Neale

    IPC分类号： G01S7/486 ,  G01S7/491 ,  G01S7/497 ,  H04N5/367 ,  H04N5/374 ,  H04N5/3745 ,  G01J1/44

    摘要： A sensor has plurality of pixels arranged in a plurality of rows and columns with row control circuitry for controlling which one of said rows is activated and column control circuitry for controlling which of said pixels in said activated row is to be activated. The column circuitry has memory configured to store information indication which of the pixels are defective, wherein each of the pixels has a photodiode and a plurality of transistors which control the activation of the photodiode. A first transistor is configured to be controlled by a column enable signal while a second transistor is configured to be controlled by a row select signal.