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公开(公告)号:WO2020242553A1
公开(公告)日:2020-12-03
申请号:PCT/US2020/022531
申请日:2020-03-13
Applicant: NEC LABORATORIES AMERICA, INC.
Inventor: NATSUMEDA, Masanao , CHENG, Wei , CHEN, Haifeng , CHEN, Yuncong
Abstract: Methods and systems for predicting failure in a cyber-physical system include determining a prediction index based on a comparison of input time series, from respective sensors in a cyber-physical system, to failure precursors. A failure precursor is detected in the input time series, responsive to a comparison of the prediction index to a threshold. A subset of the sensors associated with the failure precursor is determined, based on a gradient of the prediction index. A corrective action is performed responsive to the determined subset of sensors.
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82.
公开(公告)号:WO2020237038A1
公开(公告)日:2020-11-26
申请号:PCT/US2020/033977
申请日:2020-05-21
Applicant: NEC LABORATORIES AMERICA, INC. , NEC CORPORATION
Inventor: IP, Ezra , HUANG, Yue-Kai
IPC: G01H9/00
Abstract: Aspects of the present disclosure describe systems, methods and apparatus for improving the performance of Rayleigh-based phase-OTDR with correlation-based diversity combining and bias removal.
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公开(公告)号:WO2020214324A1
公开(公告)日:2020-10-22
申请号:PCT/US2020/023504
申请日:2020-03-19
Applicant: NEC LABORATORIES AMERICA, INC.
Inventor: KHOJASTEPOUR, Mohammad , ARSLAN, Mustafa , RANGARAJAN, Sampath
Abstract: A walk-through gate is provided. The walk-through gate includes a first semi-transparent side wall and a second semi-transparent side wall encapsulating a walk-through gate volume having an ingress portion and an egress portion. The walk-through gate further includes a plurality of antennas for wirelessly receiving product identifiers for wireless checkout. At least one of the plurality of antennas is made of a semi-transparent conductive material.
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公开(公告)号:WO2020206199A9
公开(公告)日:2020-10-08
申请号:PCT/US2020/026505
申请日:2020-04-03
Applicant: NEC LABORATORIES AMERICA, INC. , NEC CORPORATION
Inventor: TIAN, Yue
IPC: G02B6/48 , H04B10/2575
Abstract: Aspects of the present disclosure describe aerial fiber optical cable localization using distributed acoustic sensing (DAS) that advantageously may determine the locality of electrical transformers affixed to utility poles along with the aerial fiber optical cable as well as any length(s) of fiber optical cable between the poles. Further aspects employ survey manned or unmanned, aerial or terrestrial survey vehicles that acoustically excite locations along the fiber optical cable and associate those DAS excitations with global positioning location (GPS).
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公开(公告)号:WO2020198433A1
公开(公告)日:2020-10-01
申请号:PCT/US2020/024888
申请日:2020-03-26
Applicant: NEC LABORATORIES AMERICA, INC.
Inventor: WANG, Ting , HUANG, Ming-Fang , XIA, Tiejun , WELLBROCK, Glenn , LI, Yaowen , JI, Philip
IPC: H04B10/077 , H04B10/071 , H04B10/548
Abstract: Aspects of the present disclosure describe optical fiber sensing systems, methods and structures disclosing a distributed fiber sensor network constructed on an existing, live network, data carrying, optical fiber telecommunications infrastructure to detect temperatures, acoustic effects, and vehicle traffic among others. Of particular significance, sensing systems, methods, and structures according to aspects of the present disclosure may advantageously identify specific network locations relative to manholes/handholes and environmental conditions within those manholes/handholes namely, normal, flooded, frozen/iced, etc.
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公开(公告)号:WO2020163577A1
公开(公告)日:2020-08-13
申请号:PCT/US2020/016980
申请日:2020-02-06
Applicant: NEC LABORATORIES AMERICA, INC.
Inventor: IP, Ezra , HUANG, Yue-Kai , HU, Junqiang , JI, Philip , MURAKAMI, Shuji , LI, Yaowen
IPC: H04B10/071 , H04B10/25 , H04B10/61 , G01D5/353 , H04Q11/00
Abstract: Aspects of the present disclosure describe optical fiber sensing systems, methods and structures and application employing coherent detection of backscattered signals.
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公开(公告)号:WO2020086636A1
公开(公告)日:2020-04-30
申请号:PCT/US2019/057514
申请日:2019-10-23
Applicant: NEC LABORATORIES AMERICA, INC.
Inventor: HUANG, Ming-Fang , CHEN, Yuheng , WANG, Ting
IPC: H04B10/07 , H04B10/071 , H04B10/25 , G01S19/01 , G01N29/14
Abstract: Aspects of the present disclosure describe systems, methods and structures for determining any location on a deployed fiber cable from an optical time domain reflectometry (OTDR) curve using a movable mechanical vibration source to stimulate tiny vibration of fiber in deployed fiber cable along the cable route and a fiber sensing system at a central office to detect the vibration(s). Latitude and longitude of the location(s) of the vibration source is measured with a GPS device and a dynamic-OTDR distance is measured at central office (CO) simultaneously. The collected GPS location data and corresponding dynamic-OTDR distance data are paired and saved into a database. This saved data may be processed to graphically overlie a map thereby providing exact cable location on the map thereby providing carriers/service providers the ability to improve fiber fault location on a deployed fiber cable much faster and more accurately than presently possible using methods available in the art.
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公开(公告)号:WO2020006427A1
公开(公告)日:2020-01-02
申请号:PCT/US2019/039855
申请日:2019-06-28
Applicant: NEC LABORATORIES AMERICA, INC.
Inventor: JI, Philip , MURAKAMI, Shuji , MILIONE, Giovanni , WANG, Ting
IPC: G01D5/353
Abstract: Aspects of the present disclosure describe systems, methods and structures employing time-space de-noising for distributed sensors
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公开(公告)号:WO2019084072A1
公开(公告)日:2019-05-02
申请号:PCT/US2018/057198
申请日:2018-10-24
Applicant: NEC LABORATORIES AMERICA, INC.
Inventor: TANG, LuAn , CHEN, Zhengzhang , LI, Zhichun , WU, Zhenyu , KAMIMURA, Jumpei , CHEN, Haifeng
Abstract: A computer-implemented method for implementing alert interpretation in enterprise security systems is presented. The computer-implemented method includes employing a plurality of sensors to monitor streaming data from a plurality of computing devices, generating alerts based on the monitored streaming data, automatically analyzing the alerts, in real-time, by using a graph-based alert interpretation engine employing process-star graph models, retrieving a cause of the alerts, an aftermath of the alerts, and baselines for the alert interpretation, and integrating the cause of the alerts, the aftermath of the alerts, and the baselines to output an alert interpretation graph to a user interface of a user device.
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公开(公告)号:WO2019045982A1
公开(公告)日:2019-03-07
申请号:PCT/US2018/045911
申请日:2018-08-09
Applicant: NEC LABORATORIES AMERICA, INC.
Inventor: SOHN, Kihyuk , TRAN, Luan , YU, Xiang , CHANDRAKER, Manmohan
Abstract: Systems and methods for performing domain adaptation include collecting a labeled source image having a view of an object. Viewpoints of the object in the source image are synthesized to generate view augmented source images. Photometrics of each of the viewpoints of the object are adjusted to generate lighting and view augmented source images. Features are extracted from each of the lighting and view augmented source images with a first feature extractor and from captured images captured by an image capture device with a second feature extractor. The extracted features are classified using domain adaptation with domain adversarial learning between extracted features of the captured images and extracted features of the lighting and view augmented source images. Labeled target images are displayed corresponding to each of the captured images including labels corresponding to classifications of the extracted features of the captured images.
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