Patents by Inventor Yudong Zhang
Yudong Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Application Of PI4KIIIA Protein And Related Membrane Protein Complex In Treating Alzheimer's Disease
Publication number: 20240173287Abstract: The use of a genetic method to down-regulate RBO/EFR3/EFR3A/EFR3B proteins, TTC7 protein or PI4KIII? enzyme protein which interacts with RBO/EFR3/EFR3A/EFR3B proteins and TTC7 protein, or the use of a drug to inhibit PI4KIII? protein kinase activity reduces the accumulation of A?42 within neurons and age-dependent synaptic transmission failure and other obstacles in a fruit fly AD model, and obtains an effect of improving the learning and memory abilities of AD model mice. Provided is a method for using an RBO/EFR3/EFR3A/EFR3B inhibitor, a TTC7 inhibitor and a PI4KIII? inhibitor to treat Alzheimer's disease. Also provided is a method for screening a drug treating Alzheimer's disease by whether A? secretion by nerve cells is promoted or not.Type: ApplicationFiled: September 18, 2023Publication date: May 30, 2024Inventors: Fude Huang, Xiao Zhang, Wenan Wang, Le Zhang, Lixiang Jiang, Tong Zhu, Haiyan Liu, Yudong Zhou, Yang He, Wanguo Wei -
Patent number: 11533057Abstract: Presented herein are methodologies for generating clock signals for transceivers that rely on frequency and phase error correction functions. The methodology includes generating a differential clock signal at a fundamental frequency, generating, based on the differential clock signal and using a multiphase generator, four quadrature signals at the fundamental frequency, supplying the four quadrature signals to an injection-locked phase rotator, and outputting, from the injection-locked phase rotator, a phase adjusted multiphase clock signal based on the four quadrature signals.Type: GrantFiled: May 28, 2021Date of Patent: December 20, 2022Assignee: CISCO TECHNOLOGY, INC.Inventors: Yudong Zhang, Romesh Kumar Nandwana, Kadaba Lakshmikumar
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Publication number: 20220381744Abstract: Disclosed is a method for determining a whole macro-micro process of rock deformation and failure based on a four-parameter test, including following steps: firstly, obtaining acoustic emission data and deformation data of a sample in a compression test, and then calculating the deformation data according to a finite deformation theory to obtain a mean rotation angle ? at each stress level; using Grassberger-Procaccia (G-P) algorithm to calculate the acoustic emission data, and obtaining a fractal dimension of a temporal distribution DT of an acoustic emission signal and calculating a fractal dimension of a spatial distribution DS; obtaining a microscopic morphology of a fracture surface by scanning electron microscope (SEM) test after the compression test, and calculating a fractal dimension DA of the fracture surface; finally, obtaining a mathematical trend relationship between ? and DT, DS and DA according to a comprehensive analysis of DT, DS, DA and ?.Type: ApplicationFiled: May 16, 2022Publication date: December 1, 2022Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGYInventors: Yanan GAO, Donghao LAN, Yudong ZHANG, Yunlong WANG, Peng GUO, Feng GAO
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Publication number: 20220244755Abstract: Circuits and methods for multi-phase clock generators and phase interpolators are provided. The multi-phase clock generators include a delay line and multi-phase injection locked oscillator. At each stage of the multi-phase injection locked oscillator, injection currents are provided from a corresponding stage of the delay line. Outputs of the multi-phase injection locked oscillator and provided to mixers which produce inputs to an operational transconductance amplifier which provides feedback to the delay line and the multi-phase injection locked oscillator. The phase interpolator uses a technique of flipping certain input clock signals to reduce the number of components required while still being able to interpolate phase over 360 degrees and to reduce noise.Type: ApplicationFiled: February 4, 2022Publication date: August 4, 2022Inventors: Zhaowen Wang, Yudong Zhang, Peter Kinget
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Publication number: 20210367603Abstract: Presented herein are methodologies for generating clock signals for transceivers that rely on frequency and phase error correction functions. The methodology includes generating a differential clock signal at a fundamental frequency, generating, based on the differential clock signal and using a multiphase generator, four quadrature signals at the fundamental frequency, supplying the four quadrature signals to an injection-locked phase rotator, and outputting, from the injection-locked phase rotator, a phase adjusted multiphase clock signal based on the four quadrature signals.Type: ApplicationFiled: May 28, 2021Publication date: November 25, 2021Inventors: Yudong Zhang, Romesh Kumar Nandwana, Kadaba Lakshmikumar
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Patent number: 11063595Abstract: Presented herein are methodologies for generating clock signals for transceivers that rely on frequency and phase error correction functions. The methodology includes generating a differential clock signal at a fundamental frequency, generating, based on the differential clock signal and using a multiphase generator, four quadrature signals at the fundamental frequency, supplying the four quadrature signals to an injection-locked phase rotator, and outputting, from the injection-locked phase rotator, a phase adjusted multiphase clock signal based on the four quadrature signals.Type: GrantFiled: May 19, 2020Date of Patent: July 13, 2021Assignee: CISCO TECHNOLOGY, INC.Inventors: Yudong Zhang, Romesh Kumar Nandwana, Kadaba Lakshmikumar
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Patent number: 10356114Abstract: A method and a system of distinguishing between a human and a machine are disclosed. The method includes: when a request for accessing a designated network service is received, recording information of the request which include a time of receiving the request and information of an access object that sends the request; computing a statistical value of requests sent by the access object in real time based on a record; and determining the access object to be abnormal when the statistical value of the requests sent by the access object falls outside a predetermined normal range. The disclosed system of distinguishing between a human and a machine includes a recording module, a computation module and a determination module. Identification between humans and machines using the disclosed scheme is difficult to be cracked down and can improve an accuracy rate of human-machine identification.Type: GrantFiled: November 22, 2016Date of Patent: July 16, 2019Assignee: Alibaba Group Holding LimitedInventors: Yingfang Fu, Yudong Zhang, Zhenyuan Zhang, Jian Liu
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Patent number: 10104061Abstract: A method and an apparatus for distinguishing humans from computers and for controlling access to network services. One intended application of the method is a CAPTCHA technique, deployed using a shared Trusted Computing technology over a trusted network of a user terminal, a network server, and a Trusted Party, any of which may be at a Decision Point. The method distinguishes a human user making a legitimate request for network access from a programmed computer making undesired requests, by detecting unusually high network access request frequencies made by an identifiable user and/or a trusted module from the user terminal. The CAPTCHA function is further used to improve the method for controlling access to network services. The information transmitted between the members of the trusted network may be encrypted.Type: GrantFiled: May 17, 2017Date of Patent: October 16, 2018Assignee: Alibaba Group Holding LimitedInventors: Yingfang Fu, Yudong Zhang, Qian Zhang
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Patent number: 10070782Abstract: The present disclosure provides an adaptive optical retina imaging apparatus and method. The adaptive optical retina imaging apparatus comprises an optical processing unit, an adaptive optical unit, a two-dimensional scanning unit and a primary aberration correcting unit, in which an imaging unit included in the optical processing unit is imaging based on the signal after high order aberration compensation and low order aberration compensation.Type: GrantFiled: April 26, 2016Date of Patent: September 11, 2018Assignee: The Institute of Optics and Electronics, The Chinese Academy of SciencesInventors: Yi He, Guohua Shi, Jinsheng Yang, Ling Wei, Xiqi Li, Zhibin Wang, Yudong Zhang
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Publication number: 20170318010Abstract: A method and an apparatus for distinguishing humans from computers and for controlling access to network services. One intended application of the method is a CAPTCHA technique, deployed using a shared Trusted Computing technology over a trusted network of a user terminal, a network server, and a Trusted Party, any of which may be at a Decision Point. The method distinguishes a human user making a legitimate request for network access from a programmed computer making undesired requests, by detecting unusually high network access request frequencies made by an identifiable user and/or a trusted module from the user terminal. The CAPTCHA function is further used to improve the method for controlling access to network services. The information transmitted between the members of the trusted network may be encrypted.Type: ApplicationFiled: May 17, 2017Publication date: November 2, 2017Inventors: Yingfang Fu, Yudong Zhang, Qian Zhang
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Publication number: 20170201516Abstract: A terminal identification method, a machine identification code registration method and related system and apparatus are disclosed. After receiving a first request for which signature or certificate verification is to be performed from a terminal, a service network obtains a signature or certificate of a trusted party for a machine identification code identifier of the terminal from the first request, wherein the machine identification code identifier being an identifier allocated by the trusted party to the machine identification code of the terminal. The service network verifies the obtained signature or certificate, and if a verification result indicates legitimacy, identifies the terminal using the machine identification code identifier obtained from the signature or certificate. The present disclosure further provides a trusted party and a method of registering a machine identification code by the trusted party.Type: ApplicationFiled: March 24, 2017Publication date: July 13, 2017Inventors: Yingfang Fu, Yudong Zhang, Zhenyuan Zhang, Jian Liu
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Patent number: 9693829Abstract: Provided are a microscopic surgery system and a navigation method guided by optical coherence tomography. The microscopic surgery system may include: an object lens; a surgical microscope unit configured to perform two-dimensional imaging on an area to operate on via the object lens; an optical coherence tomography unit configured to perform two-dimensional tomography imaging on the area via the object lens, with an imaging field calibrated according to that of the surgical microscope unit; a processor configured to obtain navigation information based on the two-dimensional imaging by the surgical microscope unit and the two-dimensional tomography imaging by the optical coherence tomography unit, the navigation information comprising positional information of a body part to operate on and a surgical instrument for operating on the body part; and an output unit configured to output the navigation information to guide the surgical instrument to the body part.Type: GrantFiled: February 5, 2015Date of Patent: July 4, 2017Assignee: The Institute of Optics and Electronics, the Chinese Academy of SciencesInventors: Guohua Shi, Yi He, Xiqi Li, Zhibin Wang, Yudong Zhang
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Patent number: 9686269Abstract: A method and an apparatus for distinguishing humans from computers and for controlling access to network services. One intended application of the method is a CAPTCHA technique, deployed using a shared Trusted Computing technology over a trusted network of a user terminal, a network server, and a Trusted Party, any of which may be at a Decision Point. The method distinguishes a human user making a legitimate request for network access from a programmed computer making undesired requests, by detecting unusually high network access request frequencies made by an identifiable user and/or a trusted module from the user terminal. The CAPTCHA function is further used to improve the method for controlling access to network services. The information transmitted between the members of the trusted network may be encrypted.Type: GrantFiled: April 2, 2014Date of Patent: June 20, 2017Assignee: Alibaba Group Holding LimitedInventors: Yingfang Fu, Yudong Zhang, Qian Zhang
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Patent number: 9648008Abstract: A terminal identification method, a machine identification code registration method and related system and apparatus are disclosed. After receiving a first request for which signature or certificate verification is to be performed from a terminal, a service network obtains a signature or certificate of a trusted party for a machine identification code identifier of the terminal from the first request, wherein the machine identification code identifier being an identifier allocated by the trusted party to the machine identification code of the terminal. The service network verifies the obtained signature or certificate, and if a verification result indicates legitimacy, identifies the terminal using the machine identification code identifier obtained from the signature or certificate. The present disclosure further provides a trusted party and a method of registering a machine identification code by the trusted party.Type: GrantFiled: May 27, 2014Date of Patent: May 9, 2017Assignee: Alibaba Group Holding LimitedInventors: Yingfang Fu, Yudong Zhang, Zhenyuan Zhang, Jian Liu
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Publication number: 20170105640Abstract: An adaptive optical objective inspection instrument for optic nerve function comprises: a sub-system for measuring wave aberration of human's eyes, including a near infrared beacon light source, an intermediate optical system, a wavefront corrector and a wavefront sensor, configured to measure and obtain wave aberration of testee's eyes, the intermediate optical system arranged along an optical path between the near infrared beacon light source and the wavefront sensor, and the wavefront corrector arranged in the optical path of the intermediate optical system; a sub-system for correcting wave aberration of human's eyes, including the intermediate optical system, the wavefront corrector and a control unit, the control unit configured to drive and control the wavefront corrector to correct the wave aberration of testee's eyes according to the measured wave aberration; and a sub-system for inspecting optic nerve function, including a visual stimulus display and a system for collecting visual evoked potential siType: ApplicationFiled: December 16, 2015Publication date: April 20, 2017Inventors: YUN DAI, Haoxin Zhao, Yudong Zhang
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Patent number: 9610022Abstract: An adaptive optical objective inspection instrument for optic nerve function comprises: a sub-system for measuring wave aberration of human's eyes, including a near infrared beacon light source, an intermediate optical system, a wavefront corrector and a wavefront sensor, configured to measure and obtain wave aberration of testee's eyes, the intermediate optical system arranged along an optical path between the near infrared beacon light source and the wavefront sensor, and the wavefront corrector arranged in the optical path of the intermediate optical system; a sub-system for correcting wave aberration of human's eyes, including the intermediate optical system, the wavefront corrector and a control unit, the control unit configured to drive and control the wavefront corrector to correct the wave aberration of testee's eyes according to the measured wave aberration; and a sub-system for inspecting optic nerve function, including a visual stimulus display and a system for collecting visual evoked potential siType: GrantFiled: December 16, 2015Date of Patent: April 4, 2017Assignee: The Institute of Optics and Electronics, The Chinese Academy of SciencesInventors: Yun Dai, Haoxin Zhao, Yudong Zhang
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Publication number: 20170078318Abstract: A method and a system of distinguishing between a human and a machine are disclosed. The method includes: when a request for accessing a designated network service is received, recording information of the request which include a time of receiving the request and information of an access object that sends the request; computing a statistical value of requests sent by the access object in real time based on a record; and determining the access object to be abnormal when the statistical value of the requests sent by the access object falls outside a predetermined normal range. The disclosed system of distinguishing between a human and a machine includes a recording module, a computation module and a determination module. Identification between humans and machines using the disclosed scheme is difficult to be cracked down and can improve an accuracy rate of human-machine identification.Type: ApplicationFiled: November 22, 2016Publication date: March 16, 2017Inventors: Yingfang Fu, Yudong Zhang, Zhenyuan Zhang, Jian Liu
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Patent number: 9571490Abstract: A method and an apparatus for distinguishing humans from computers. During user registration, a computer prompts a human user to provide a spoken response to certain authentication information for registration. The computer obtains registration voice data from the spoken response and establishes a registration voiceprint of the human user. During user logon, the computer identifies the user requesting to logon by the user's logon credentials, provides authentication information for logon to the user, and prompts the user to provide a spoken response to the authentication information for logon. The computer obtains logon voice data from the spoken response, and establishes a logon voiceprint of the user. The computer then determines whether the user requesting to logon is human by comparing the logon voiceprint with the registration voiceprint.Type: GrantFiled: December 22, 2015Date of Patent: February 14, 2017Assignee: Alibaba Group Holding LimitedInventors: Yingfang Fu, Yudong Zhang
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Patent number: 9529999Abstract: A method and a system of distinguishing between a human and a machine are disclosed. The method includes: when a request for accessing a designated network service is received, recording information of the request which include a time of receiving the request and information of an access object that sends the request; computing a statistical value of requests sent by the access object in real time based on a record; and determining the access object to be abnormal when the statistical value of the requests sent by the access object falls outside a predetermined normal range. The disclosed system of distinguishing between a human and a machine includes a recording module, a computation module and a determination module. Identification between humans and machines using the disclosed scheme is difficult to be cracked down and can improve an accuracy rate of human-machine identification.Type: GrantFiled: June 12, 2014Date of Patent: December 27, 2016Assignee: Alibaba Group Holding LimitedInventors: Yingfang Fu, Yudong Zhang, Zhenyuan Zhang, Jian Liu
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Publication number: 20160317030Abstract: The present disclosure provides an adaptive optical retina imaging apparatus and method. The adaptive optical retina imaging apparatus comprises an optical processing unit, an adaptive optical unit, a two-dimensional scanning unit and a primary aberration correcting unit, in which an imaging unit included in the optical processing unit is imaging based on the signal after high order aberration compensation and low order aberration compensation.Type: ApplicationFiled: April 26, 2016Publication date: November 3, 2016Inventors: Yi HE, Guohua SHI, Jinsheng YANG, Ling WEI, Xiqi LI, Zhibin WANG, Yudong ZHANG