Patents by Inventor Lijie Li
Lijie 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).
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Patent number: 11620965Abstract: A video display method includes: acquiring at least one frame image corresponding to a current display time point in at least one source video; reading a stage configuration file, obtaining a stage modeling parameter of the stage space at the current display time point and a corresponding relationship between the at least one frame image and the stage space according to a specific stage related parameter in the stage configuration file; according to the stage modeling parameter and the corresponding relationship, processing the at least one frame image to obtain divided regions corresponding to all display screens included in the at least one stage plane; determining display contents corresponding to the divided regions, and copying the display contents to at least one target memory; and outputting a content in the at least one target memory to the at least one stage plane for display.Type: GrantFiled: August 18, 2021Date of Patent: April 4, 2023Assignee: Beijing Institute of TechnologyInventors: Gangyi Ding, Tianyu Huang, Peng Li, Lijie Li, Mingxiang Tang
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Publication number: 20220059053Abstract: A video display method includes: acquiring at least one frame image corresponding to a current display time point in at least one source video; reading a stage configuration file, obtaining a stage modeling parameter of the stage space at the current display time point and a corresponding relationship between the at least one frame image and the stage space according to a specific stage related parameter in the stage configuration file; according to the stage modeling parameter and the corresponding relationship, processing the at least one frame image to obtain divided regions corresponding to all display screens included in the at least one stage plane; determining display contents corresponding to the divided regions, and copying the display contents to at least one target memory; and outputting a content in the at least one target memory to the at least one stage plane for display.Type: ApplicationFiled: August 18, 2021Publication date: February 24, 2022Applicant: Beijing Institute of TechnologyInventors: Gangyi DING, Tianyu HUANG, Peng LI, Lijie LI, Mingxiang TANG
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Publication number: 20220051477Abstract: A virtual stage based on parallel simulation, includes a stage modeling unit, a motion simulation unit, a display simulation unit, and a data extraction output unit. The stage modeling unit performs stage simulation modeling according to the designed stage styling; the motion simulation unit simulates a stage motion in a simulation system according to the designed stage animation; the display simulation unit is configured to simulate LED screen display of the stage in the simulation system according to the designed stage background. The data extraction output unit includes a styling extraction output unit, a motion extraction output unit and a display extraction output unit, which are configured to extract data from the stage modeling unit, the motion simulation unit, and the display simulation unit respectively for processing and conversion, and output geometric styling parameters of an actual stage, stage mechanical motion parameters, and stage LED screen display parameters.Type: ApplicationFiled: August 9, 2021Publication date: February 17, 2022Applicant: BEIJING INSTITUTE OF TECHNOLOGYInventors: GANGYI DING, TIANYU HUANG, LIJIE LI, PENG LI, MINGXIANG TANG
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Patent number: 11250626Abstract: A virtual stage based on parallel simulation, includes a stage modeling unit, a motion simulation unit, a display simulation unit, and a data extraction output unit. The stage modeling unit performs stage simulation modeling according to the designed stage styling; the motion simulation unit simulates a stage motion in a simulation system according to the designed stage animation; the display simulation unit is configured to simulate LED screen display of the stage in the simulation system according to the designed stage background. The data extraction output unit includes a styling extraction output unit, a motion extraction output unit and a display extraction output unit, which are configured to extract data from the stage modeling unit, the motion simulation unit, and the display simulation unit respectively for processing and conversion, and output geometric styling parameters of an actual stage, stage mechanical motion parameters, and stage LED screen display parameters.Type: GrantFiled: August 9, 2021Date of Patent: February 15, 2022Assignee: BEIJING INSTITUTE OF TECHNOLOGYInventors: Gangyi Ding, Tianyu Huang, Lijie Li, Peng Li, Mingxiang Tang
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Publication number: 20180198050Abstract: An energy harvesting device uses quantum dot layers or nanowires to generate an electrical potential between first and second electrodes. The device enables thermal energy generated from a heat source to be used in a battery to power a device.Type: ApplicationFiled: January 11, 2017Publication date: July 12, 2018Inventors: Lijie Li, Jianhua Jiang
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Patent number: 9630637Abstract: The invention discloses a complex network-based high speed train system safety evaluation method. The method includes steps as follows: (1) constructing a network model of a physical structure of a high speed train system, and constructing a functional attribute degree of a node based on the network model; (2) extracting a functional attribute degree, a failure rate and mean time between failures of a component as an input quantity, conducting an SVM training using LIBSVM software; (3) conducting a weighted kNN-SVM judgment: an unclassifiable sample point is judged so as to obtain a safety level of the high speed train system. For a high speed train system having a complicated physical structure and operation conditions, the method can evaluate the degree of influences on system safety when a state of a component in the system changes. The experimental result shows that the algorithm has high accuracy and good practicality.Type: GrantFiled: November 27, 2015Date of Patent: April 25, 2017Assignee: BEIJING JIAOTONG UNIVERSITYInventors: Limin Jia, Yong Qin, Yanhui Wang, Shuai Lin, Hao Shi, Lifeng Bi, Lei Guo, Lijie Li, Man Li
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Publication number: 20170015339Abstract: The invention discloses a complex network-based high speed train system safety evaluation method. The method includes steps as follows: (1) constructing a network model of a physical structure of a high speed train system, and constructing a functional attribute degree of a node based on the network model; (2) extracting a functional attribute degree, a failure rate and mean time between failures of a component as an input quantity, conducting an SVM training using LIBSVM software; (3) conducting a weighted kNN-SVM judgment: an unclassifiable sample point is judged so as to obtain a safety level of the high speed train system. For a high speed train system having a complicated physical structure and operation conditions, the method can evaluate the degree of influences on system safety when a state of a component in the system changes. The experimental result shows that the algorithm has high accuracy and good practicality.Type: ApplicationFiled: November 27, 2015Publication date: January 19, 2017Applicant: BEIJING JIAOTONG UNIVERSITYInventors: Limin JIA, Yong QIN, Yanhui WANG, Shuai LIN, Hao SHI, Lifeng BI, Lei GUO, Lijie LI, Man LI
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Patent number: 9508917Abstract: This invention concerns a piezoelectric energy harvesting device or actuator comprising a piezoelectric material (12) on a substrate (14). The piezoelectric material is divided into a plurality of discrete regions to provide a plurality of piezoelectric elements (16) on the substrate which are electrically insulated from each other. The elements are preferably disposed along the length of a cantilevered beam. The piezoelectric layer may be divided or further divided with an insulating gap extending in the longitudinal direction of the beam for energy harvesting in torsional mode(s) of beam vibration as well as bending modes.Type: GrantFiled: November 5, 2012Date of Patent: November 29, 2016Assignee: ALTENERGIS PLCInventors: Lijie Li, Gerard Anthony Ronan
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Publication number: 20140285067Abstract: This invention concerns a piezoelectric energy harvesting device or actuator comprising a piezoelectric material (12) on a substrate (14). The piezoelectric material is divided into a plurality of discrete regions to provide a plurality of piezoelectric elements (16) on the substrate which are electrically insulated from each other. The elements are preferably disposed along the length of a cantilevered beam. The piezoelectric layer may be divided or further divided with an insulating gap extending in the longitudinal direction of the beam for energy harvesting in torsional mode(s) of beam vibration as well as bending modes.Type: ApplicationFiled: November 5, 2012Publication date: September 25, 2014Inventors: Lijie Li, Gerard Anthony Ronan