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111.发明申请公开(公告)号：US20220368703A1
公开(公告)日：2022-11-17
申请号：US17761861
申请日：2020-03-18
Inventor： Xiaofeng JIANG , Siyu CHENG , Jian YANG , Xiaobin TAN , Yongdong ZHANG
Abstract: A method for detecting security based on machine learning in combination with rule matching is provided, including: establishing a machine learning model; training the machine learning model by using a labeled legal traffic and a labeled malicious traffic; collecting a network traffic; preprocessing the collected network traffic; detecting a malicious traffic from the preprocessed network traffic by using a rule-matching-based method; identifying a malicious traffic from the preprocessed network traffic by using the trained machine learning model, including: extracting a feature of the preprocessed network traffic, and identifying the malicious traffic based on the extracted feature by using the trained machine learning model; and integrating the malicious traffic detected by the rule-matching-based method and the malicious traffic identified by the trained machine learning model.
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公开(公告)号：US20220272511A1
公开(公告)日：2022-08-25
申请号：US17738899
申请日：2022-05-06
Inventor： Kaiping XUE , Hangyu TIAN , Jianan HONG
Abstract: This application relates to a subscription data management method, apparatus, and system. The method includes: a first network element receives, from a second network element, a request message for subscription data; obtains a security token of a terminal device, where the security token is used to verify permission to obtain the subscription data; provides the security token for a blockchain, and queries the blockchain about the subscription data; and if verification succeeds, obtains address information of the subscription data from the blockchain, and sends the address information of the subscription data to the second network element. In the method, the permission to obtain the subscription data is determined by using the blockchain, so that when a subscribed network device does not participate, a visited network device can still obtain the subscription data.
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公开(公告)号：US11410369B2
公开(公告)日：2022-08-09
申请号：US17360866
申请日：2021-06-28
Inventor： Yuan Wei , Wei Bai , Rihui Wu , Juyong Zhang
Abstract: This application provides a method for generating an animation expression and an electronic device. The method for generating an animation expression includes: obtaining an initial three-dimensional mesh, where a vertex in the initial three-dimensional mesh is used to represent an expression feature of a face; transforming the initial three-dimensional mesh to obtain a target three-dimensional mesh, where a topological structure of the target three-dimensional mesh is the same as a topological structure of a basic blendshape; determining a personalized blendshape fitting the face based on the basic blendshape; determining personalized blendshape coefficients based on the target three-dimensional mesh and the personalized blendshape; and generating the animated expression based on the personalized blendshape coefficients.
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公开(公告)号：US20220228977A1
公开(公告)日：2022-07-21
申请号：US17614763
申请日：2020-03-30
Inventor： Shuiming Hu , Jin Wang , Yu Sun
IPC: G01N21/3504 , G02B26/08 , G01N33/00
Abstract: A detection method and detection system for a trace gas, the detection method comprising: providing a resonant cavity, a gas to be measured being filled inside of a cavity body of the resonant cavity; providing detection light rays having different frequencies, the detection light rays being incident to the inside of the resonant cavity from one end of the resonant cavity in the extending direction and exiting from the other end of the resonant cavity in the extending direction so as to obtain detection light rays carrying information of a trace gas to be measured, and the cavity body of the resonant cavity having a degree of freedom of expansion and retraction in the extending direction so that the longitudinal mode frequency of the resonant cavity matches the frequencies of the incident detection light rays; and according to the detection light rays that have different frequencies and that carry information of said trace gas, acquiring the molecular saturation absorption spectrum of said trace gas, and calculating the concentration of said trace gas. The detection system comprises: a laser generating device, the resonant cavity, a photoelectric detection device, a feedback control device and a scanning control device. At room temperature, detection light rays provided by a conventional laser are used to detect the concentration of a trace gas.
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公开(公告)号：US11374653B2
公开(公告)日：2022-06-28
申请号：US16645147
申请日：2017-06-07
Inventor： Shangbin Li , Zhengyuan Xu , Boyang Huang
IPC: H04B10/116 , H05B45/20 , H04B10/43 , H04B10/50 , H04B10/54
Abstract: Provided is a visible light communication transceiver. A drive amplification module performs digital-to-analog conversion and amplification on a digital modulation signal to obtain a first electrical signal, and transmits the signal to a Bias Tee-like circuit. The Bias Tee-like circuit transmits the first electrical signal to a LED light source. The LED light source performs electrical-to-optical conversion on the first electrical signal to generate a first optical signal and transmits the first optical signal, and performs optical-to-electrical conversion on a received second optical signal to obtain a second electrical signal. The Bias Tee-like circuit obtains the second electrical signal from the LED light source, and transmits the second electrical signal to an adaptive amplification and equalization module. The adaptive equalization module adjusts a gain of the second electrical signal based on an optical power of the first optical signal.
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Patent Agency Ranking
公开(公告)号：US11368678B2
公开(公告)日：2022-06-21
申请号：US17114329
申请日：2020-12-07
Inventor： Zhuoyi Lv , Li Li , Houqiang Li , Haitao Yang
IPC: H04N19/105 , H04N19/54 , H04N19/527 , H04N19/176 , H04N19/139 , H04N19/172 , H04N19/52
Abstract: An image prediction method and device are disclosed. The method includes: obtaining a first reference unit of an image unit, where respective predicted images are obtained for the image unit and the first reference unit by using a same affine model; obtaining motion information of basic motion compensation units at two or more preset positions in the first reference unit; and obtaining motion information of a basic motion compensation unit of the image unit according to the motion information. In this way, motion information of the first reference unit using a same affine motion prediction model is reused, and a more accurate motion vector of a current image unit is obtained, improving prediction accuracy and maintaining encoding and decoding complexity, thereby improving encoding and decoding performance.
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公开(公告)号：US11313925B2
公开(公告)日：2022-04-26
申请号：US16491702
申请日：2017-11-14
Inventor： Zongquan Zhou , Yu Ma , Tao Tu , Chuanfeng Li , Guangcan Guo
IPC: G01N21/65 , G01R33/12 , G01R33/032 , H01S3/16 , G01R33/07
Abstract: Provided is a quantum sensor based on a rare-earth-ion doped optical crystal, having: a rare-earth-ion doped optical crystal; a low temperature providing unit, which provides a low temperature operating environment to the rare-earth-ion doped optical crystal; a constant magnetic field generation unit, which applies a constant magnetic field to the rare-earth-ion doped optical crystal; a light field generation unit, which provides a light field performing optical pumping on the rare-earth-ion doped optical crystal to prepare the rare-earth-ions in an initial spin state, and a light field for exciting Raman scattering of the rare-earth-ion doped optical crystal; a pulsed magnetic field generation unit, which applies a pulsed magnetic field perpendicular to the constant magnetic field to the rare-earth-ion doped optical crystal to make the rare-earth-ion doped optical crystal generate a spin echo; and a heterodyne Raman scattering light field detection and analysis unit, which detects and analyzes a Raman scattering light field radiated from the rare-earth-ion doped optical crystal. Further provided are uses of this quantum sensor for magnetic field sensing and electric field sensing as well as a sensing method.
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公开(公告)号：US20220013345A1
公开(公告)日：2022-01-13
申请号：US17485847
申请日：2021-09-27
Inventor： Bing Gong , Yongfei Zheng
IPC: H01J49/04
Abstract: A sample feed device is provided, including: a body; a sample tray provided on the body; a moving part provided on the body and capable of reciprocating on the body, and the moving part provided with a transfer chamber, the transfer chamber capable of receiving a sample from the sample tray and transferring the sample to an analyzer with the movement of the moving part; a processing system provided on the body, and capable of performing helium gas purging and vacuum processing to the sample. The sample feed device may feed the sample automatically through relay transfer of the sample by the sample tray and the moving part. The processing system may perform the helium gas purging and vacuuming to the sample, which strips adsorbate on the surface of the sample by the helium gas purging, and removes the stripped adsorbate on the surface of the sample by vacuuming.
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公开(公告)号：US20210391008A1
公开(公告)日：2021-12-16
申请号：US17281931
申请日：2019-10-09
Inventor： Zongquan Zhou , Chuanfeng Li
IPC: G11C13/04
Abstract: A quantum storage device, including: a sample cryostat configured to load a storage crystal and a filter crystal and configured to cool the storage crystal and the filter crystal to a preset temperature; a laser control system configured to generate a control light and a signal light to perform a quantum storage of the signal light based on a spin population locking; a quantum state encoding and analysis system configured to perform a quantum state encoding and analysis of signal photons; and a filtering system configured to suppress noise introduced by the control light and extract the signal photons. The storage device has the advantages of long storage life, high signal-to-noise ratio, and strong anti-interference ability. The device is simple and easy to operate.
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公开(公告)号：US20210359765A1
公开(公告)日：2021-11-18
申请号：US17390473
申请日：2021-07-30
Inventor： Chen GONG , Jinkang ZHU , Shangbin LI , Rui NI
IPC: H04B10/70 , H04B10/516
Abstract: This application provides a quantum communication method, an apparatus, and a system. The method includes: modulating a first symbol to an ith direction vector of a first electric wave based on a preset mapping relationship, to obtain a second electric wave; and transmitting the second electric wave, where the first electric wave supports M direction vectors, the ith direction vector of the first electric wave is one of the M direction vectors of the first electric wave, the first symbol is a symbol corresponding to first data, the ith direction vector of the first electric wave corresponds to an ith distribution result, the ith distribution result is obtained by converting the second electric wave into an energy quantum. In this application, the first symbol may be modulated to a direction vector of the first electric wave, and this application is compatible with the conventional technology.
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