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1. 发明授权

US11204286B2 Single mode fiber distributed temperature sensing with improved noise characteristics 有权
公开(公告)号：US11204286B2
公开(公告)日：2021-12-21
申请号：US16879876
申请日：2020-05-21
申请人： NEC Laboratories America, Inc.
发明人： Yaowen Li , Ming-Fang Huang , Shuji Murakami , Philip Ji , Ting Wang
IPC分类号： H04B10/08 , G01K11/324 , H04B10/2507 , H04B10/50
摘要： Aspects of the present disclosure describe single mode fiber distributed temperature sensing (DTS) with improved noise characteristics employing superluminescent emitting diodes (SLEDs) and/or amplified spontaneous emission (ASE) light sources.

2. 发明申请

US20140314104A1 Flexible Remote Node (RN) For Dynamic Traffic Allocation in Passive Optical Networking (PON) and Mobile Backhaul (MBH) Applications 有权
标题翻译：灵活的远程节点（RN）用于无源光网络（PON）和移动回程（MBH）应用中的动态流量分配
公开(公告)号：US20140314104A1
公开(公告)日：2014-10-23
申请号：US14254458
申请日：2014-04-16
申请人： NEC Laboratories America, Inc.
发明人： Ming-Fang Huang , Dayou Qian
IPC分类号： H04J14/02 , H04Q11/00 , H04B10/27
CPC分类号： H04J14/0239 , H04B10/27 , H04J14/0282 , H04Q11/0067 , H04Q2011/0075
摘要： A computer implemented method for dynamically allocating traffic in a passive optical communication system includes employing an individual wavelength channel to carry different data services from an individual transmitter, configuring an optical network unit into optical network unit groups serving at least two community of users; and providing a flexible remote node with wavelength routing flexibility including switching wavelength traffic from optical network user groups with low capacity requirements to optical network user groups with increased wavelength traffic requirements.
摘要翻译：一种用于在无源光通信系统中动态分配业务的计算机实现方法包括采用单独的波长信道来承载来自各个发射机的不同数据业务，将光网络单元配置成服务于至少两个用户群的光网络单元组; 并提供具有波长路由灵活性的灵活的远程节点，包括将具有低容量要求的光网络用户组的波长业务切换到具有增加的波长业务需求的光网络用户组。

3. 发明授权

US11284173B2 Network sensing topologies for fiber optic sensing 有权
公开(公告)号：US11284173B2
公开(公告)日：2022-03-22
申请号：US17221820
申请日：2021-04-04
申请人： NEC Laboratories America, Inc.
发明人： Ming-Fang Huang , Ting Wang
IPC分类号： H04Q11/00 , G01H9/00
摘要： Aspects of the present disclosure describe distributed fiber optic sensing (DFOS) systems, methods, and structures that advantageously utilize existing telecommunications facilities that serve as not only to convey telecommunications traffic—but as a sensor medium providing useful sensory information. In sharp contrast to the prior art—a DFOS system when so deployed may advantageously exploit network topologies and optical switches to provide novel sensing features including the detection of environmental events including acoustic, temperature, and vibrational events that may be indicative of societal activity including traffic and/or emergency events.

4. 发明申请

US20190232096A1 EARLY FIRE DETECTION WITH LASER-BASED SENSOR AND 2D INFORMATION MAPPING FOR HIGH CEILING BUILDINGS 审中-公开
公开(公告)号：US20190232096A1
公开(公告)日：2019-08-01
申请号：US16229505
申请日：2018-12-21
申请人： NEC Laboratories America, Inc.
发明人： Ming-Fang Huang
IPC分类号： A62C37/36 , A62C3/00 , G01N21/61
CPC分类号： A62C37/36 , A62C3/00 , A62C37/04 , G01N21/61
摘要： A fire detection system and method for fire detection are provided. The fire detection system includes at least one light emitting device for emitting light in a two-dimensional arrangement having multiple optical paths. The fire detection system further includes at least one light detection device for outputting respective light detection signals responsive to detecting the emitted light in each of the multiple optical paths of the two-dimensional arrangement. The fire detection system also includes a controller for identifying an abnormal condition relating to an early fire condition and initiating a set of fire sprinklers responsive to the respective light detection signals.

5. 发明申请

US20150295821A1 ARCHITECTURE OF OPEN-FLOW BASED SOFTWARE-DEFINED OPTICAL LABEL SWAPPING 有权
标题翻译：基于开放式软件定义的光学标签交换架构
公开(公告)号：US20150295821A1
公开(公告)日：2015-10-15
申请号：US14682701
申请日：2015-04-09
申请人： NEC Laboratories America, Inc.
发明人： Ming-Fang Huang
IPC分类号： H04L12/723 , H04J14/02 , H04Q11/00
CPC分类号： H04J14/0212 , H04L45/62 , H04L45/64 , H04Q11/0066 , H04Q2011/0077
摘要： A method of optical label swapping implemented by a switch used in a software defined network system that in one embodiment includes providing a 400-Gbit/s payload having a Nyquist shaped carrier in a 75-Ghz bandwidth spacing using a payload generator module controlling at least one first optical laser, and inserting a first optical label adjacent to the payload flow in a remainder of a 100-Ghz bandwidth with a label generator controlling at least one second optical laser. The label generator and the payload generator are controlled by a software defined network (SDN). A package of the payload and the first optical label is transmitted to a receiving node. The optical label can be swapped at the receiving node with a flex grid wavelength selective switch (WSS) controlled by the software defined network.
摘要翻译：一种由在软件定义的网络系统中使用的交换机实现的光标签交换的方法，其在一个实施例中包括使用至少控制的有效载荷发生器模块来提供具有75Ghz带宽间隔的具有奈奎斯特形载波的400Gbit / s有效载荷一个第一光学激光器，并且在具有控制至少一个第二光学激光器的标签发生器的100Ghz带宽的剩余部分中插入与有效载荷流相邻的第一光学标签。标签生成器和有效载荷发生器由软件定义的网络（SDN）控制。有效载荷和第一光学标签的包被发送到接收节点。光纤标签可以通过软件定义的网络控制的柔性网格波长选择开关（WSS）在接收节点进行交换。

6. 发明申请

US20230130788A1 OUTDOOR APPLICATION OF DISTRIBUTED FIBER OPTIC SENSING / ACOUSTIC SENSING 有权
公开(公告)号：US20230130788A1
公开(公告)日：2023-04-27
申请号：US17958415
申请日：2022-10-02
申请人： NEC Laboratories America, Inc.
发明人： Sarper OZHARAR , Ting WANG , Yue TIAN , Yangmin DING , Philip JI , Shaobo Han , Ming-Fang Huang , Tingfeng Li
IPC分类号： G01H9/00 , G01D5/353 , H04B10/071
摘要： Aspects of the present disclosure describe distributed fiber optic sensing (DFOS) systems, methods, and structures that advantageously sense/monitor outdoor facilities and structures including outdoor cabinets containing fiber optic facilities in which the cabinet/fiber optic cable contained therein are configured to provide superior acoustic sensing. Further outdoor facilities and structures that are monitored include manhole structures. Superior DFOS/DAS monitoring results are obtained by employing a machine learning-based analysis method that employs a temporal relation network (TRN).

7. 发明申请

US20210374468A1 FACIAL RECOGNITION FOR MASKED INDIVIDUALS 有权
公开(公告)号：US20210374468A1
公开(公告)日：2021-12-02
申请号：US17330832
申请日：2021-05-26
申请人： NEC Laboratories America, Inc.
发明人： Manmohan Chandraker , Ting Wang , Xiang Xu , Francesco Pittaluga , Gaurav Sharma , Yi-Hsuan Tsai , Masoud Faraki , Yuheng Chen , Yue Tian , Ming-Fang Huang , Jian Fang
IPC分类号： G06K9/62 , G06T3/00
摘要： Methods and systems for training a neural network include generate an image of a mask. A copy of an image is generated from an original set of training data. The copy is altered to add the image of a mask to a face detected within the copy. An augmented set of training data is generated that includes the original set of training data and the altered copy. A neural network model is trained to recognize masked faces using the augmented set of training data.

8. 发明授权

US10931366B2 Distributed sensing over optical fiber carrying live, high-speed data 有权
公开(公告)号：US10931366B2
公开(公告)日：2021-02-23
申请号：US16830160
申请日：2020-03-25
申请人： NEC Laboratories America, Inc.
发明人： Ting Wang , Ming-Fang Huang , Tiejun Xia , Glenn Wellbrock , Yaowen Li , Philip Ji
IPC分类号： H04B10/071 , G01M11/00 , G01D5/353 , H04B10/40 , H04B10/2575 , H04B10/27
摘要： 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.

9. 发明授权

US10763964B2 Bidirectional optical communication and sensing WDM architecture using same fiber transmission band 有权
公开(公告)号：US10763964B2
公开(公告)日：2020-09-01
申请号：US16454054
申请日：2019-06-27
申请人： NEC Laboratories America, Inc.
发明人： Yue-Kai Huang , Ezra Ip , Philip Nan Ji , Ming-Fang Huang
IPC分类号： H04B10/00 , H04B10/2543 , H04B10/25 , H04J14/00
摘要： Aspects of the present disclosure describe systems, methods and structures providing bidirectional optical fiber communication and sensing using the same fiber transmission band and bidirectional WDM fiber sharing such that communications channels and optical fiber sensing channel(s) coexist on the same fiber. As a result, nonlinear interaction between communications channels and interrogating pulse(s) of sensing are much reduced or eliminated.

10. 发明申请

US20190195789A1 Gas Concentration Measurement by 2F Signal Trough Distance 审中-公开
公开(公告)号：US20190195789A1
公开(公告)日：2019-06-27
申请号：US16219136
申请日：2018-12-13
申请人： NEC Laboratories America, Inc.
发明人： Da Pan , Yue Tian , Ming-Fang Huang
IPC分类号： G01N21/39 , G01J3/433 , G01N21/27
CPC分类号： G01J3/433 , G01J3/4338 , G01N21/274 , G01N21/39 , G01N2021/399 , G01N2201/127
摘要： A computer-implemented method for measuring gas concentration from a 2f signal in wavelength modulation spectroscopy is presented. The computer-implemented method includes emitting a beam of light from a laser to pass through a gas sample, calculating a gas measurement value from the gas sample via a trough distance calculator using a trough distance of a gas absorption line's 2f signal, calibrating the gas measurement value via a multi-point calibration process, and outputting the gas measurement value to a user interface of a computing device.

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