Patents by Inventor Qingqing Li

Qingqing Li 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).

  • Patent number: 11892578
    Abstract: This disclosure relates to geophysical exploration and seismic imaging, and more particularly to a seismic imaging method, system, and device based on pre-stack high-angle fast Fourier transform (FFT). The method includes: acquiring seismic data acquired during seismic exploration; extracting a common shot point gather from the seismic data followed by conversion into a frequency wavenumber domain common offset gather; calculating wave propagation angles; dividing an imaging region into a first region and a second region; solving constant coefficients of the first region and the second region; performing frequency-division layer-by-layer wavefield continuation on a frequency-wave number domain common offset gather to obtain imaging results at different depths and frequencies; subjecting the imaging results to integration followed by transformation to a spatial domain to obtain common offset imaging profiles; and subjecting the common offset imaging profiles to superposition obtain final imaging results.
    Type: Grant
    Filed: September 30, 2022
    Date of Patent: February 6, 2024
    Assignee: China University of Petroleum (EAST CHINA)
    Inventors: Liyun Fu, Qingqing Li, Qizhen Du, Zhiwei Wang
  • Patent number: 11866897
    Abstract: A main stream reservoir ecological modulation method considering incoming water from interval tributaries is provided. The method determines the contribution ratio of the incoming water from interval tributaries to first-day's water rising in a high-flow surge process and when to start ecological modulations of spawning ground sections, determines a river course routing method after a main stream and its tributaries joining and calibrating parameters, based on past hydrological data, performing river flow calculation on the discharge volume of upstream reservoirs and the flow after interval tributaries joining, and determines a main stream reservoir ecological modulation mode considering incoming water from interval tributaries.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: January 9, 2024
    Inventors: Jijun Xu, Huichao Dai, Chunhua Yang, Zhengjie Yin, Qingqing Li, Zhiwu Liu, Dingguo Jiang, Hanqing Zhao
  • Publication number: 20230340742
    Abstract: A main stream reservoir ecological modulation method considering incoming water from interval tributaries is provided. The method determines the contribution ratio of the incoming water from interval tributaries to first-day's water rising in a high-flow surge process and when to start ecological modulations of spawning ground sections, determines a river course routing method after a main stream and its tributaries joining and calibrating parameters, based on past hydrological data, performing river flow calculation on the discharge volume of upstream reservoirs and the flow after interval tributaries joining, and determines a main stream reservoir ecological modulation mode considering incoming water from interval tributaries.
    Type: Application
    Filed: April 29, 2021
    Publication date: October 26, 2023
    Applicants: CHINA THREE GORGES CORPORATION, CHANGJIANG RIVER SCIENTIFIC RESEARCH INSTITUTE
    Inventors: Jijun XU, Huichao DAI, Chunhua YANG, Zhengjie YIN, Qingqing LI, Zhiwu LIU, Dingguo JIANG, Hanqing ZHAO
  • Publication number: 20230314645
    Abstract: The seismic imaging resolution analysis method comprises: obtaining common-shot gathers and common-detector gathers; in the common-shot gathers, conducting detector focusing analysis on a focus point at (xj, zn) in each source point gather to obtain a source point focal-beam gather; looping all the focus points at a depth zn, and conducting computation on a weighted source-focusing operator Pik† (zn, zn); in the common-detector gathers, conducting source point focusing analysis on an focus point at (xj, zn) in each source point gather to obtain a detector focal-beam gather; Loop all the focus points at a depth zn, and conducting computation on a weighted detector-focusing operator Pik (zn, zn); and conducting computation on a normalized resolution function of a single focus point so as to obtain a horizontal resolution and a definition.
    Type: Application
    Filed: April 21, 2022
    Publication date: October 5, 2023
    Applicant: CHINA UNIVERSITY OF PETROLEUM (East China)
    Inventors: Liyun FU, Zhiwei WANG, Wei WEI, Qizhen DU, Qingqing LI
  • Patent number: 11709286
    Abstract: A method, a system, and a device for full-waveform inversion deghosting for a marine variable depth streamer data acquisition are provided for solving existing problems that deghosted seismic data has low accuracy and is accompanied by artifacts due to a large error in ghost prediction. The provided method includes: acquiring seismic data, jointly solving Lippmann-Schwinger equations to obtain normal derivatives of an incident wave field and a wave field of a receiver surface, performing a wave field extrapolation by a Kirchhoff equation that includes only an integral on the receiver surface to obtain a wave field of a sea surface recorded by a horizontal streamer, calculating a ghost operator, and subjecting the ghosted wave field of the sea surface recorded by the horizontal streamer to full-waveform inversion deghosting to obtain deghosted seismic data. The provided method improves the accuracy and signal-to-noise ratio (SNR) of deghosted seismic data.
    Type: Grant
    Filed: August 7, 2022
    Date of Patent: July 25, 2023
    Assignee: China University of Petroleum (East China)
    Inventors: Liyun Fu, Zhiwei Wang, Yu Wu, Qizhen Du, Qingqing Li
  • Patent number: 11686870
    Abstract: The present disclosure belongs to the technical field of seismic exploration imaging, and relates to an interpretive-guided velocity modeling seismic imaging method and system, a medium and a device. The method comprises the following steps: S1. performing first imaging on a given initial velocity model to obtain a first imaging result; S2. performing relative wave impedance inversion on the first imaging result to obtain a relative wave impedance profile; S3. performing Curvelet filtering on the relative wave impedance profile to obtain a first interpretation scheme; S4. superposing the first interpretation scheme and the initial velocity model to obtain a new migration velocity field; S5. performing second imaging on a new migration velocity field to obtain a second imaging result; and S6. repeating steps S2-S4 for the obtained second imaging result until a final seismic imaging result is obtained.
    Type: Grant
    Filed: September 9, 2022
    Date of Patent: June 27, 2023
    Assignee: CHINA UNIVERSITY OF PETROLEUM (East China)
    Inventors: Zhiwei Wang, Liyun Fu, Shikai Jian, Wubing Deng, Qingqing Li
  • Patent number: 11618519
    Abstract: The present invention discloses a method of tracking control for a foot force and moment of a biped robot. According to the method, a double-spring damping model is designed, and a force tracking controller is designed by using an LQR optimization method, so as to realize tracking of the foot force and moment of the biped robot. Further, a desired force on a foot and a desired moment on the foot are calculated through a planned ZMP distribution method, thereby eventually achieving better ZMP tracking of the biped robot and adapting to ground of certain unevenness.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: April 4, 2023
    Assignee: BEIJING INSTITUTE OF TECHNOLOGY
    Inventors: Qiang Huang, Zhangguo Yu, Xuechao Chen, Chencheng Dong, Qingqing Li, Libo Meng, Gao Huang
  • Publication number: 20230095632
    Abstract: The present disclosure belongs to the technical field of seismic exploration imaging, and relates to an interpretive-guided velocity modeling seismic imaging method and system, a medium and a device. The method comprises the following steps: S1. performing first imaging on a given initial velocity model to obtain a first imaging result; S2. performing relative wave impedance inversion on the first imaging result to obtain a relative wave impedance profile; S3. performing Curvelet filtering on the relative wave impedance profile to obtain a first interpretation scheme; S4. superposing the first interpretation scheme and the initial velocity model to obtain a new migration velocity field; S5. performing second imaging on a new migration velocity field to obtain a second imaging result; and S6. repeating steps S2-S4 for the obtained second imaging result until a final seismic imaging result is obtained.
    Type: Application
    Filed: September 9, 2022
    Publication date: March 30, 2023
    Applicant: CHINA UNIVERSITY OF PETROLEUM (East China)
    Inventors: Zhiwei WANG, Liyun FU, Shikai JIAN, Wubing DENG, Qingqing LI
  • Publication number: 20230034829
    Abstract: This disclosure relates to geophysical exploration and seismic imaging, and more particularly to a seismic imaging method, system, and device based on pre-stack high-angle fast Fourier transform (FFT). The method includes: acquiring seismic data acquired during seismic exploration; extracting a common shot point gather from the seismic data followed by conversion into a frequency wavenumber domain common offset gather; calculating wave propagation angles; dividing an imaging region into a first region and a second region; solving constant coefficients of the first region and the second region; performing frequency-division layer-by-layer wavefield continuation on a frequency-wave number domain common offset gather to obtain imaging results at different depths and frequencies; subjecting the imaging results to integration followed by transformation to a spatial domain to obtain common offset imaging profiles; and subjecting the common offset imaging profiles to superposition obtain final imaging results.
    Type: Application
    Filed: September 30, 2022
    Publication date: February 2, 2023
    Inventors: Liyun FU, Qingqing LI, Qizhen DU, Zhiwei WANG
  • Patent number: 11511431
    Abstract: The present invention provides a method for monitoring a balanced state of a humanoid robot, comprising: acquiring state data of the robot falling in different directions and being stable, forming a support vector machine (SVM) training data set and obtaining, by training, an initial SVM classifier; inputting the state data of the robot to the trained SVM classifier, so that the SVM classifier outputs a classification result; taking statistics on a proportion of cycles judged to have an impending fall in the total number of control cycles within a judgment buffer time after the SVM classifier outputs the classification result, and finally determining a monitoring result of the balanced state of the robot according to the proportion and finally extracting state data of misjudged cycles within the buffer time, adding the state data to the current training data set and updating the SVM classifier, eventually enabling the classifier to achieve the effects of matching motion capabilities of the robot and monitorin
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: November 29, 2022
    Assignee: BEIJING INSTITUTE OF TECHNOLOGY
    Inventors: Qiang Huang, Xuechao Chen, Zhangguo Yu, Tong Wu, Mingyue Qin, Qingqing Li, Libo Meng
  • Publication number: 20220073600
    Abstract: Disclosed are antagonists of PC3-secreted microprotein (PSMP) and use of the antagonists for treatment of liver, lung, or kidney fibrosis, including various diseases or disorders associated with liver, lung, or kidney fibrosis such as, e.g., non-alcoholic fatty liver disease (NAFLD), alcoholic liver disease (ALD), primary sclerosing cholangitis (PSC), primary biliary cholangitis (PBC), drug-induced lung injury, acute kidney injury (AKI), chronic kidney disease (CKD), lupus nephritis, IgA nephropathy, and membranous glomerulonephritis. Also disclosed are PSMP antagonists and their use for treatment of graft-versus-host disease (GVHD) and systemic lupus erythematosus (SLE). Suitable PSMP antagonists for use in disease treatment include PSMP-binding proteins such as, for example, neutralizing anti-PSMP antibodies.
    Type: Application
    Filed: January 26, 2020
    Publication date: March 10, 2022
    Inventors: Ying Wang, Shaoping She, Xiaolei Pei, Qingqing Li, Zhongtian Liu, Zhanming Song, Chunhui Di, Christopher Liu
  • Publication number: 20210276190
    Abstract: The present invention provides a method for monitoring a balanced state of a humanoid robot, comprising: acquiring state data of the robot falling in different directions and being stable, forming a support vector machine (SVM) training data set and obtaining, by training, an initial SVM classifier; inputting the state data of the robot to the trained SVM classifier, so that the SVM classifier outputs a classification result; taking statistics on a proportion of cycles judged to have an impending fall in the total number of control cycles within a judgment buffer time after the SVM classifier outputs the classification result, and finally determining a monitoring result of the balanced state of the robot according to the proportion and finally extracting state data of misjudged cycles within the buffer time, adding the state data to the current training data set and updating the SVM classifier, eventually enabling the classifier to achieve the effects of matching motion capabilities of the robot and monitorin
    Type: Application
    Filed: June 29, 2020
    Publication date: September 9, 2021
    Applicant: BEIJING INSTITUTE OF TECHNOLOGY
    Inventors: Qiang HUANG, Xuechao CHEN, Zhangguo YU, Tong WU, Mingyue QIN, Qingqing LI, Libo MENG
  • Patent number: 10929179
    Abstract: An electronic device monitors a volume of data processed by the electronic device within a first monitoring time segment, where a processor of the electronic device is configured to be in a first working mode, and the processor processes data in a poll mode driver (PMD) manner in the first working mode. The electronic device switches the processor from the first working mode to a second working mode when it is determined, according to the volume of data processed by the electronic device within the first monitoring time segment, that the processor is idle within the first monitoring time segment, where the processor processes data in the PMD manner and a sleep manner in the second working mode.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: February 23, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jiachun Guo, Qingqing Li
  • Publication number: 20210009218
    Abstract: The present invention discloses a method of tracking control for a foot force and moment of a biped robot. According to the method, a double-spring damping model is designed, and a force tracking controller is designed by using an LQR optimization method, so as to realize tracking of the foot force and moment of the biped robot. Further, a desired force on a foot and a desired moment on the foot are calculated through a planned ZMP distribution method, thereby eventually achieving better ZMP tracking of the biped robot and adapting to ground of certain unevenness.
    Type: Application
    Filed: May 28, 2020
    Publication date: January 14, 2021
    Applicant: BEIJING INSTITUTE OF TECHNOLOGY
    Inventors: Qiang HUANG, Zhangguo YU, Xuechao CHEN, Chencheng DONG, Qingqing LI, Libo MENG, Gao HUANG
  • Publication number: 20190034229
    Abstract: An electronic device monitors a volume of data processed by the electronic device within a first monitoring time segment, where a processor of the electronic device is configured to be in a first working mode, and the processor processes data in a poll mode driver (PMD) manner in the first working mode. The electronic device switches the processor from the first working mode to a second working mode when it is determined, according to the volume of data processed by the electronic device within the first monitoring time segment, that the processor is idle within the first monitoring time segment, where the processor processes data in the PMD manner and a sleep manner in the second working mode.
    Type: Application
    Filed: September 24, 2018
    Publication date: January 31, 2019
    Inventors: Jiachun Guo, Qingqing Li
  • Publication number: 20180000725
    Abstract: Orally dissolving films including a pharmaceutically active ingredient having a low bioavailability due to first-pass metabolism and/or low water solubility upon oral administration and a pharmaceutically acceptable excipient, and a medical application thereof.
    Type: Application
    Filed: June 13, 2017
    Publication date: January 4, 2018
    Inventors: Wai Yip LEE, Yuan FANG, Qingqing LI, Hao HAN, Ka Lun LAI
  • Patent number: 8856317
    Abstract: In one embodiment, a method includes receiving at one of a plurality of servers, a request from a client for a secure communication session, storing context information associated with the secure communication session at a virtual context server in communication with the servers, and establishing the secure communication session between one of the servers and the client. The context information includes a session identifier, a secret, and a session state. The stored context information is available to the servers to allow the secure communication session to move between the servers. An apparatus for secure data transfer in a virtual environment is also disclosed.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: October 7, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Matthew Robertson, Rao Sandeep Hebbani Raghavendra, Qingqing Li
  • Publication number: 20120016977
    Abstract: In one embodiment, a method includes receiving at one of a plurality of servers, a request from a client for a secure communication session, storing context information associated with the secure communication session at a virtual context server in communication with the servers, and establishing the secure communication session between one of the servers and the client. The context information includes a session identifier, a secret, and a session state. The stored context information is available to the servers to allow the secure communication session to move between the servers. An apparatus for secure data transfer in a virtual environment is also disclosed.
    Type: Application
    Filed: July 15, 2010
    Publication date: January 19, 2012
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Matthew Robertson, Rao Sandeep Hebbani Raghavendra, Qingqing Li
  • Patent number: 7509431
    Abstract: A method is disclosed for performing message and transformation adapter functions in a network element on behalf of an application. According to one aspect, the network element determines an application layer message that is collectively contained in payload portions of data packets. The application layer message conforms to an application layer protocol, such as Hypertext Transfer Protocol (HTTP). The network element determines the application layer protocol to which the application layer message conforms. Based on the application layer protocol, an adapter is selected from among a plurality of adapters that are accessible to the network element. The application layer message is provided to the selected adapter, which converts the application layer message into a “canonical” message that is not specific to any particular application layer protocol.
    Type: Grant
    Filed: November 17, 2004
    Date of Patent: March 24, 2009
    Assignee: Cisco Technology, Inc.
    Inventors: Pravin Singhal, Qingqing Li, Juzar Kothambawala, Parley Van Oleson, Wai Yip Tung, Sunil Potti
  • Publication number: 20060106941
    Abstract: A method is disclosed for performing message and transformation adapter functions in a network element on behalf of an application. According to one aspect, the network element determines an application layer message that is collectively contained in payload portions of data packets. The application layer message conforms to an application layer protocol, such as Hypertext Transfer Protocol (HTTP). The network element determines the application layer protocol to which the application layer message conforms. Based on the application layer protocol, an adapter is selected from among a plurality of adapters that are accessible to the network element. The application layer message is provided to the selected adapter, which converts the application layer message into a “canonical” message that is not specific to any particular application layer protocol.
    Type: Application
    Filed: November 17, 2004
    Publication date: May 18, 2006
    Inventors: Pravin Singhal, Qingqing Li, Juzar Kothambawala, Parley Oleson, Wai Tung, Sunil Potti