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    Method and system for generating the spectrogram of a signal
    2.
    发明授权
    Method and system for generating the spectrogram of a signal 有权

    公开(公告)号：US12132514B2

    公开(公告)日：2024-10-29

    申请号：US17931566

    申请日：2022-09-13

    申请人： Institut national de la recherche scientifique

    发明人： Jose Azana ,  Benjamin Crockett ,  Connor Mckenzie Layton Rowe

    IPC分类号： H04B10/079 ,  G01J3/28 ,  H04B10/61

    CPC分类号： H04B10/0795 ,  G01J3/28 ,  H04B10/613 ,  H04B10/612

    摘要： There is provided a system for generating a spectrogram signal representative of a spectrogram of an initial signal, the system comprising: a temporal phase modulator for receiving the initial signal and quadratically modulating a temporal phase of the initial signal in a periodic series of consecutive quadratic time lenses in order to obtain a temporal phase modulated signal; a spectral phase modulator for quadratically modulating a spectral phase of the temporal phase modulated signal to obtain a given signal representative of a series of consecutive spectra; and a sensor for detecting the given signal in a temporal domain in order to obtained a sensed signal and outputting the sensed signal, the sensed signal being representative of the spectrogram of the initial signal.

    METHOD AND SYSTEM FOR A HEALTH AUDIT ON A CURRENT WORKING ROUTE IN LAYER ZERO CONTROL PLANE NETWORKS
    3.
    发明公开
    METHOD AND SYSTEM FOR A HEALTH AUDIT ON A CURRENT WORKING ROUTE IN LAYER ZERO CONTROL PLANE NETWORKS 审中-公开

    公开(公告)号：US20240356636A1

    公开(公告)日：2024-10-24

    申请号：US18327162

    申请日：2023-06-01

    申请人： CIENA CORPORATION

    发明人： Manish Aggarwal ,  Sandeep Kumar Gupta ,  Vikas Chander

    IPC分类号： H04B10/079

    CPC分类号： H04B10/0795

    摘要： Aspects of the subject disclosure may include, for example, a node in a fiber optic network, the node comprising a processing system comprising a processor and executable instructions that, when executed by the processing system, facilitate performance of operations, including receiving an automatic or manual trigger; checking nodes in a current working route for a failure responsive to receiving the automatic or manual trigger; raising an alarm responsive to detecting the failure; and performing operations associated with the automatic or manual trigger responsive to not detecting the failure. Other embodiments are disclosed.

    Optical amplification estimation method, optical amplification estimation apparatus and computer program
    4.
    发明授权
    Optical amplification estimation method, optical amplification estimation apparatus and computer program 有权

    公开(公告)号：US12119869B2

    公开(公告)日：2024-10-15

    申请号：US17927056

    申请日：2020-05-28

    申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    发明人： Ryo Igarashi ,  Masamichi Fujiwara ,  Takuya Kanai

    IPC分类号： H04B10/079

    CPC分类号： H04B10/07955 ,  H04B10/0797

    摘要： An optical amplification estimation method includes by an excitation light output unit connected to a first end of a first optical transmission line, making excitation light incident on the first optical transmission line, by a monitoring unit connected to the same side as the first end of the first optical transmission line, making monitoring light incident on the first optical transmission line, the monitoring light having a wavelength different from a wavelength of the excitation light, by the monitoring unit, measuring intensity of light incident on the monitoring unit when the excitation light is incident, and intensity of light incident on the monitoring unit when the excitation light is not incident, and by an amplification estimation unit, estimating a gain of an optical signal in the first optical transmission line based on the light intensity measured in the measuring. The first optical transmission line shares a partial optical transmission line with a second optical transmission line used for an optical network unit and an optical line terminal to transmit and receive an optical signal to and from each other.