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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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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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4.发明公开公开(公告)号：US20230163855A1
公开(公告)日：2023-05-25
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：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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