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公开(公告)号：US12021566B2
公开(公告)日：2024-06-25
申请号：US17613721
申请日：2021-04-20
发明人： Feng Zhao , Jianjun Yu , Jingling Li , Jiamin Gong
CPC分类号： H04B10/54 , H04B10/532 , H04B10/90 , H04B10/50 , H04B10/505 , H04B10/5051 , H04B10/5053 , H04J14/00 , H04J14/06
摘要： The present disclosure provides a photonics-aided vector terahertz signal communication system. The system includes an optical frequency comb generation module, a vector terahertz signal generation module, an optical fiber transmission module, a vector terahertz signal detection module, and a vector terahertz signal emission module that are sequentially connected, where the vector terahertz signal generation module includes a first binary sequence generator, a first electronic amplifier, and a first intensity modulator that are sequentially connected, the first binary sequence generator generates binary data representing to-be-transmitted data, the first intensity modulator performs, based on the binary data, amplitude modulation on an optical frequency comb entering the first intensity modulator, and an optical signal obtained after the modulation of the first intensity modulator is a vector terahertz signal carrying the to-be-transmitted data. In the present disclosure, a vector terahertz signal can be generated by using an intensity modulator.
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2.发明授权公开(公告)号：US12010518B2
公开(公告)日：2024-06-11
申请号：US17612720
申请日：2019-12-24
发明人： Feng Zhao , Jingyu Feng
IPC分类号： H04W12/122 , B60R25/30
CPC分类号： H04W12/122 , B60R25/30
摘要： A system and method for securely defensing against a collusion attack under Internet of Vehicles (IoV) are provided. The present disclosure can repair a vulnerability, of a reputation system in the IoV, that the IOC attackers can manipulate a traffic-related message aggregation model (TMAM) by increasing their own reputation scores in an inside-and-outside collusion (IOC) manner. In addition, the present disclosure can detect IOC attacks quickly to improve the security of the IoV; can eliminate suspicious providers recursively and provide a reputation fluctuation association rule, to avoid overload of the TMAM; and can deprive IOC attackers of the opportunity to improve their reputation scores and ensure credible information in the IoV, to ensure the fairness and availability of the TMAM without the interference from the IOC attackers.
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3.发明公开公开(公告)号：US20230273602A1
公开(公告)日：2023-08-31
申请号：US17810371
申请日：2022-07-01
发明人： Chuang WANG , Yaqian FENG , Guanghui ZHOU , Dongzhe HAN
IPC分类号： G05B19/418
CPC分类号： G05B19/4184 , G05B19/4188 , G05B19/41865
摘要： A SIS identification method of reversible recovery fault-oriented workshop key manufacturing resources is that based on SIS model in the infectious disease research theory, the workpieces and manufacturing resources required in a production order are linked together through database technology to establish a discrete production workshop manufacturing network. The SIS model is configured to solve a change of the number of bottlenecks of other manufacturing resources caused by the initial fault manufacturing resources over time. The weighted result of a peak number of bottleneck resources and its time to reach the peak is marked to determine the importance of the initial fault manufacturing resources. Through the sorting of importance, the key manufacturing resource nodes in the discrete workshop are finally selected. The invention sorts out other key manufacturing resources that need to pay attention in production management in the manufacturing workshop to plan in advance and to improve the efficiency.
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公开(公告)号：US11735831B2
公开(公告)日：2023-08-22
申请号：US17539227
申请日：2021-12-01
CPC分类号： H01Q21/22 , H01Q1/38 , H01Q13/106 , H01Q21/064
摘要： A broadband multiple-input multiple-output (MIMO) antenna with self-decoupling characteristics includes: a dielectric substrate, a metal patch printed on an upper surface of the dielectric substrate, and a pair of horizontal back-to-back elliptical tapered slots and a vertical elliptical tapered slot etched on the metal patch. A microstrip line and another bent micro strip line are respectively used to feed the vertical elliptical tapered slot and the pair of horizontal elliptical tapered slots, and characteristic modes of the horizontal slots excited by the bent microstrip line and characteristic modes of the vertical slot excited by the micro strip line are mutually orthogonal. By adopting the technical scheme, no additional decoupling structure needs to be introduced, and lower coupling can be realized in a wider working frequency band.
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公开(公告)号：US11984931B2
公开(公告)日：2024-05-14
申请号：US17634951
申请日：2021-04-20
发明人： Feng Zhao , Yi Wei , Jingling Li , Jianjun Yu
IPC分类号： H04B10/516 , H04B10/50 , H04B10/61
CPC分类号： H04B10/516 , H04B10/503 , H04B10/616
摘要： A system for generating and receiving a polarization multiplexed single sideband signal is provided, which includes a light wave generating unit connected with a signal modulating unit and configured to generate a light wave; a driving signal generating unit connected with the signal modulating unit and configured to generate a driving signal; the signal modulating unit configured to split the light wave into two orthogonal polarized light waves, and modulate the driving signal on the polarized light waves to obtain a polarization multiplexed upper sideband optical signal and a polarization multiplexed lower sideband optical signal which are coupled to output a mixed signal, the mixed signal is transmitted to a separating and converting unit to obtain electrical millimeter wave signals; the electrical millimeter wave signals are transmitted through an MIMO wireless link to a signal sampling and processing unit to be converted into digital signals for digital signal processing.
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公开(公告)号：US20220413209A1
公开(公告)日：2022-12-29
申请号：US17824160
申请日：2022-05-25
发明人： Zhanqiang HUI
IPC分类号： G02B6/02
摘要： Disclosed is a Chinese knot-like porous fiber core ultra-high birefringence THz optical fiber. The optical fiber comprises a substrate, claddings and fiber cores, wherein the claddings and the fiber cores are arranged in the substrate, and the fiber cores are embedded in the centers of the claddings; and the fiber core comprises a first fiber core region, a second fiber core region and a third fiber core region, the center of the first fiber core region 4 serves as the origin of coordinates, and the first fiber core region 4 is composed of six regular hexagon units with overlapped boundaries in the x-axis direction. In the present disclosure, the fiber core comprises a first fiber core region, a second fiber core region and a third fiber core region, and the three regions jointly form a fiber core region of a Chinese knot-like porous fiber core.
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公开(公告)号：US11893552B2
公开(公告)日：2024-02-06
申请号：US17616975
申请日：2019-12-24
发明人： Feng Zhao , Jingyu Feng
CPC分类号： G06Q20/065 , G06Q20/40 , G06Q2220/00
摘要： The present disclosure discloses a distributed consensus algorithm and apparatus for rapidly generating a block. The algorithm includes: broadcasting a new transaction to all nodes (S110); collecting, by each of the nodes, the new transaction into a block (S120); evaluating a trust value of each of the nodes to obtain an evaluation result (S130); selecting honest miners according to the evaluation result (S140); obtaining negotiation rules (S150); creating, by the honest miners, a new block according to the negotiation rules, and broadcasting the new block to all the nodes (S160); and when all transactions in the nodes are valid but do not take effect, receiving the new block and adding the new block to a blockchain (S170).
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公开(公告)号：US20240022333A1
公开(公告)日：2024-01-18
申请号：US17613721
申请日：2021-04-20
发明人： Feng ZHAO , Jianjun YU , Jingling LI , Jiamin GONG
IPC分类号： H04B10/54 , H04B10/90 , H04B10/532
CPC分类号： H04B10/54 , H04B10/90 , H04B10/532
摘要： The present disclosure provides a photonics-aided vector terahertz signal communication system. The system includes an optical frequency comb generation module, a vector terahertz signal generation module, an optical fiber transmission module, a vector terahertz signal detection module, and a vector terahertz signal emission module that are sequentially connected, where the vector terahertz signal generation module includes a first binary sequence generator, a first electronic amplifier, and a first intensity modulator that are sequentially connected, the first binary sequence generator generates binary data representing to-be-transmitted data, the first intensity modulator performs, based on the binary data, amplitude modulation on an optical frequency comb entering the first intensity modulator, and an optical signal obtained after the modulation of the first intensity modulator is a vector terahertz signal carrying the to-be-transmitted data. In the present disclosure, a vector terahertz signal can be generated by using an intensity modulator.
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公开(公告)号：US11808976B2
公开(公告)日：2023-11-07
申请号：US17804840
申请日：2022-05-31
发明人： Zhanqiang Hui
IPC分类号： G02B6/126
CPC分类号： G02B6/126
摘要： Disclosed is a compact on-chip polarization splitter-rotator based on a Bezier curve gradient waveguide. The Bezier curve gradient waveguide structure is a standard SOI-based wafer structure, comprising a substrate, of which the bottom layer is buried with oxide (SiO2), and the top is composed of silicon waveguides, including a common output waveguide and a specially-structured waveguide containing Bessel curve boundaries. The common waveguide structure is composed of a cuboid waveguide, and the specially-structured waveguide is composed of an input region, an output region, a width-gradient waveguide (Bezier curve gradient structure) and a coupling region, where a width of the gradient waveguide is determined by a third-order Bezier curve, and the coupling region is composed of two asymmetrical waveguide regions.
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10.发明授权公开(公告)号：US11763432B2
公开(公告)日：2023-09-19
申请号：US17679400
申请日：2022-02-24
发明人： Weihua Liu , Biyan Ma , Ying Liu , Yanchao Gong , Fuping Wang
CPC分类号： G06T5/009 , G06T5/50 , G06T2207/10024 , G06T2207/20221
摘要： The present disclosure provides a multi-exposure image fusion (MEF) method based on a feature distribution weight of a multi-exposure image, including: performing color space transformation (CST) on an image, determining a luminance distribution weight of the image, determining an exposure distribution weight of the image, determining a local gradient weight of the image, determining a final weight, and determining a fused image. The present disclosure combines the luminance distribution weight of the image, the exposure distribution weight of the image and the local gradient weight of the image to obtain the final weight, and fuses the input image and the weight with the existing pyramid-based multi-resolution fusion method to obtain the fused image, thereby solving the technical problem that an existing MEF method does not consider the overall feature distribution of the multi-exposure image.
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