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638 条记录 (耗时 0.027 秒)

    RADAR SYSTEM AND METHOD
    2.
    发明公开
    RADAR SYSTEM AND METHOD 审中-公开

    公开(公告)号：US20240302491A1

    公开(公告)日：2024-09-12

    申请号：US18272173

    申请日：2022-01-20

    申请人： ELTA SYSTEMS LTD.

    发明人： Nissan MASKIL ,  David KARASIK ,  Eran RAVE

    IPC分类号： G01S7/292 ,  G01S7/03

    CPC分类号： G01S7/292 ,  G01S7/03

    摘要： A radar system is described. The system comprises a radiation transmission unit, a radiation collection unit, and a processing unit. The radiation transmission unit is configured to generate electromagnetic radiation formed by a plurality of quantum entangled photons comprising first transmitted photon (signal) and second reference photon (idler). The radiation transmission unit transmits the first transmitted photons toward a region to be inspected and measures the second reference photons to obtain and store measured data thereof. The radiation collection unit comprises at least one radiation collection element configured to receive photons reflected from one or more objects in said region and generate data indicative of one or more parameters of the collected photons. The processing unit is configured to receive stored measured data on the second reference photons and data on parameters of the collected photons from the radiation collection unit, and to determine correlation between the stored measured data and the collected photons to thereby differentiate between noise collected photons and reflection of said first transmitted photons from one or more objects in the region to be inspected.

    Frequency and time offset modulation (FANTOM) chirp MIMO automotive radar with N-path notch filter
    3.
    发明授权
    Frequency and time offset modulation (FANTOM) chirp MIMO automotive radar with N-path notch filter 有权

    公开(公告)号：US11994611B2

    公开(公告)日：2024-05-28

    申请号：US17491596

    申请日：2021-10-01

    申请人： NXP B.V.

    发明人： Douglas Alan Garrity ,  Ryan Haoyun Wu ,  Maik Brett

    IPC分类号： G01S7/292 ,  G01S7/35

    CPC分类号： G01S7/292 ,  G01S7/354

    摘要： A radar system, apparatus, architecture, and method are provided with a transmitter that produces a plurality of distinct FanTOM signals that are transmitted as N RF-encoded transmit signals in an overlapped fashion such that the pulse repetition interval and frame length are kept short; a receiver that processes target return signals reflected from the N RF-encoded transmit signals with a mixer to produce an IF signal which is filtered with one or more notch filters clocked with a sampling clock frequency to control harmonic notch frequencies to suppress transmitter spill-over and close-in self-clutter interference, thereby producing a filtered IF signal that is converted to a digital signal with an analog-to-digital converter that is clocked with the sampling clock frequency; and a radar processor that processes the digital signal to generate a range spectrum comprising N segments that correspond, respectively, to the N RF-encoded transmit signals.

    APD, APD Fabrication Method, Detector, and Laser Radar System
    6.
    发明公开
    APD, APD Fabrication Method, Detector, and Laser Radar System 审中-公开

    公开(公告)号：US20240079512A1

    公开(公告)日：2024-03-07

    申请号：US18506294

    申请日：2023-11-10

    申请人： Huawei Technologies Co., Ltd.

    发明人： Hongming Shen ,  Yanli Zhao ,  Yun Ding ,  Dapan Li

    IPC分类号： H01L31/107 ,  G01S7/292 ,  G01S13/89 ,  H01L31/0304

    CPC分类号： H01L31/107 ,  G01S7/292 ,  G01S13/89 ,  H01L31/03046

    摘要： An avalanche photodiode (APD) includes a first electrode, a substrate layer, a buffer layer, a gain layer, a gradient layer, an absorption layer, a diffusion barrier layer, a contact layer, and a second electrode. The gain layer, the gradient layer, and the absorption layer are arranged vertically in sequence. The gain layer, the gradient layer, and the absorption layer are located between the buffer layer and the diffusion barrier layer. The gain layer includes at least two gain units, and the gain units are arranged in a stacked manner. Each of the gain units includes a multiplication layer and a charge layer that are arranged vertically. A distance between the charge layer and the gradient layer is less than a distance between the multiplication layer and the gradient layer.

    RECEIVER PROCESSING CIRCUITRY FOR MOTION DETECTION AND RELATED SYSTEMS, METHODS, AND APPARATUSES
    7.
    发明公开
    RECEIVER PROCESSING CIRCUITRY FOR MOTION DETECTION AND RELATED SYSTEMS, METHODS, AND APPARATUSES 审中-公开

    公开(公告)号：US20240027599A1

    公开(公告)日：2024-01-25

    申请号：US18474015

    申请日：2023-09-25

    申请人： Microchip Technology Incorporated

    发明人： Peter Sauer

    IPC分类号： G01S13/58 ,  G01S13/62 ,  G01S7/292

    CPC分类号： G01S13/581 ,  G01S13/62 ,  G01S7/292

    摘要： Motion detection apparatuses are disclosed. The motion detection may be performed using one or more of a sub-window of a predetermined time window, a predetermined threshold value that is settable responsive to changes in one or more environmental factors, or a detection trigger. An apparatus includes a processor and an analog-to-digital converter (ADC) circuitry to sample a reflected predetermined pattern signal to generate reflected predetermined pattern samples. The processor captures collections of the reflected predetermined pattern samples corresponding to a predetermined time window and determines a sum of the collections or sub-collections. The processor determines an average of magnitudes of the determined sum and determines that a moving object is detected responsive to a predetermined threshold value.