Patents Assigned to Peking University Shenzhen Graduate School
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Patent number: 12210252Abstract: An array substrate and a manufacturing method therefor, and a display panel are provided. The manufacturing method includes: forming a scan line and a gate on a substrate; forming a first insulating layer covering the scan line and the gate on the substrate; forming a metal oxide semiconductor layer above the first insulating layer, the metal oxide semiconductor layer including a source, a drain and an active layer; coating an upper surface of the metal oxide semiconductor layer with a photosensitive material layer; photoetching the photosensitive material layer from the back side of the substrate by using a first metal layer as a mask to form a channel protection layer; performing conductorization treatment on the metal oxide semiconductor layer to enable the source and the drain to be conductive; forming a data line above the first insulating layer; and forming a pixel electrode above the first insulating layer.Type: GrantFiled: December 17, 2021Date of Patent: January 28, 2025Assignees: INFOVISION OPTOELECTRONICS (KUNSHAN) CO., LTD., PEKING UNIVERSITY SHENZHEN GRADUATE SCHOOLInventors: Shengdong Zhang, Xiaoliang Zhou, Congwei Liao, Qingping Lin, Huan Yang, Zhongfei Zou, Te-Chen Chung
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Patent number: 12206892Abstract: A method and a device for encoding or decoding based on an inter-frame prediction. The method includes steps of: determining a temporal motion vector prediction value of a to-be-processed coding unit, where the temporal motion vector prediction value is a temporal motion vector prediction value of a sub-block, a temporal motion vector of which is obtainable through prediction, in sub-blocks adjacent to the to-be-processed coding unit and/or sub-blocks in the to-be-processed coding unit; determining a motion vector residual prediction value of the to-be-processed coding unit according to the temporal motion vector prediction value; determining a motion vector of a sub-block in the to-be-processed coding unit according to the temporal motion vector prediction value and the motion vector residual prediction value and performing a motion compensation according to the motion vector of the sub-block in the to-be-processed coding unit to determine a prediction block of the to-be-processed coding unit.Type: GrantFiled: October 25, 2019Date of Patent: January 21, 2025Assignee: PEKING UNIVERSITY SHENZHEN GRADUATE SCHOOLInventors: Ronggang Wang, Xi Xie, Kui Fan, Wen Gao
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Publication number: 20240408055Abstract: The present invention relates to a use of a natural compound Anisomelic acid extracted from Anisomeles indica O. Kuntze in the preparation of pharmaceutical compositions for inhibiting the infection and replication of novel coronaviruses and the mutant strains (SARS-CoV-2 variants) thereof, the Anisomelic acid is a compound comprising a chemical structural Formula I, the pharmaceutical composition includes a safe and effective amount of Anisomelic acid, that is, the pharmaceutical composition is a combination of a safe and effective amount of Anisomelic acid and its pharmaceutically acceptable salt or carrier thereof.Type: ApplicationFiled: October 21, 2021Publication date: December 12, 2024Applicants: Peking University Shenzhen Graduate School, CNS BIOTEK CORP., Gansu Evergreen Pharmaceuticals Co.,Ltd.Inventors: Zhen Yang, Yew-Min Tzeng, Jun-Min Quan, Qing Chang, Chi-Tai Yeh
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Publication number: 20240287013Abstract: A method for asymmetric synthesis of (?)-Anisomelic Acid is provided in the present invention, a chiral compound (?)-Costunolide is used as a starting material, a key intermediate is obtained by a regioselective ozone decomposition reaction, then carbon chain extension is performed by a Horner-Wadsworth-Emmons (HWE) reaction and a Peterson olefination reaction, and a (?)-anisomelic acid fourteen-membered carbocyclic skeleton is constructed by a ring-closing metathesis (RCM) reaction, laying an important foundation for subsequent (?)-anisomelic acid biological activity research, in the synthesis route, various (?)-anisomelic acid analogs can also be obtained from the key intermediate, the reaction operations in the synthesis route are simple and the present invention can be widely popularized and used.Type: ApplicationFiled: June 10, 2021Publication date: August 29, 2024Applicants: Peking University Shenzhen Graduate School, CNS BIOTEK CORP., Gansu Evergreen Pharmaceuticals Co.,Ltd.Inventors: Zhen Yang, Yew-Min Tzeng, Hai-Xin Yu, Nan Zheng, Chong-Guo Jiang
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Publication number: 20240273274Abstract: A method of establishing a transistor statistical model based on an artificial neural network system comprising receiving a first data set and generating a nominal model of a baseline transistor by the artificial neural network system based on the first data set; screening neurons in the artificial neural network system based on the first data set and the nominal model to obtain final variational neurons; obtaining distribution of weights of the final variational neurons and distribution of threshold voltages based on variation of the nominal model with respect to weights of the final variational neurons, variation of the nominal model with respect to the threshold voltages, distribution of the drain-source current and distribution of the gate-source voltage in the first data set; and establishing the transistor statistical model based on the nominal model, the distribution of weights of the final variational neurons and the distribution of the threshold voltages.Type: ApplicationFiled: January 31, 2024Publication date: August 15, 2024Applicant: Peking University Shenzhen Graduate SchoolInventors: Lining ZHANG, Wu DAI, Yu LI, Runsheng WANG, Ru HUANG
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Patent number: 12051220Abstract: Provided are a point cloud attribute prediction method and prediction device based on a filter. The method comprises a coding method and a decoding method, and the device comprises a coding device and a decoding device. The method comprises: determining K nearest neighbor points of the current point; determining a filter matrix; and determining an attribute prediction value of the current point according to the filter matrix. Therefore, the compression performance of a point cloud attribute can be improved by means of selecting an appropriate filter.Type: GrantFiled: May 11, 2020Date of Patent: July 30, 2024Assignee: Peking University Shenzhen Graduate SchoolInventors: Ge Li, Chuang Ma, Jing Wang, Yi Ting Shao, Wen Gao
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Patent number: 12039762Abstract: An attribute-based point cloud strip division method. The method comprises: first, performing spatial division of a certain depth on a point cloud to obtain a plurality of local point clouds; and then, sorting the attribute values in the local point clouds, and on the basis of such, further performing point cloud strip division so as to obtain point cloud strips that have low geometric overhead and a uniform number of points. By means of comprehensively using the spatial position and attribute information of the point clouds, the points having similar attributes and related spatial positions are gathered as much as possible in one strip during strip division, which is convenient for making full use of the redundancy of the attribute information between adjacent points, and improving the performance of point cloud attribute compression.Type: GrantFiled: April 12, 2019Date of Patent: July 16, 2024Assignee: PEKING UNIVERSITY SHENZHEN GRADUATE SCHOOLInventors: Ge Li, Yiting Shao
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Patent number: 11997284Abstract: A method for deriving motion vector is provided, this method includes: obtaining a space domain motion vector prediction and a time domain motion vector prediction of adjacent blocks of a coding unit in a predetermined direction; performing a filtering operation on the space domain motion vector and the time domain motion vector prediction to obtain the space domain motion vector prediction and the time domain motion vector prediction of the filtered adjacent blocks; determining, according to a predetermined inter-frame prediction mode, reference motion vectors of a current block in four side directions by using the space domain motion vector prediction and the time domain motion vector prediction of the filtered adjacent blocks and a coordinate position of the current block in the coding unit; and deriving motion vectors of the current block according to the reference motion vectors and the coordinate position of the current block in the coding unit.Type: GrantFiled: December 22, 2021Date of Patent: May 28, 2024Assignee: PEKING UNIVERSITY SHENZHEN GRADUATE SCHOOLInventors: Ronggang Wang, Xi Xie, Kui Fan, Wen Gao
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Patent number: 11949868Abstract: Embodiments of the present disclosure provide a method and device for selecting a context model of a quantized coefficient end flag. The method comprises: obtaining a scanning position POS of a non-zero coefficient corresponding to current quantized coefficient end flag in a specific scanning order; wherein the scanning position POS is a subscript of the non-zero coefficient in the scanning order; configuring a first context model array, and using a fixed value as the base to calculate the logarithmic value of the value of the scanning position POS plus 1, and according to the logarithmic value, selecting a first context model from the first context model array; and using the first context model to encode or decode a binary symbol of the current quantized coefficient end flag. According to the technical solution of the present application, it is able to improve encoding and decoding efficiency for a quantized coefficient end flag, thereby further improve the efficiency of video encoding and decoding.Type: GrantFiled: March 7, 2019Date of Patent: April 2, 2024Assignee: PEKING UNIVERSITY SHENZHEN GRADUATE SCHOOLInventors: Ronggang Wang, Zhenyu Wang, Wen Gao
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Patent number: 11937438Abstract: An organic field-effect transistor and a fabrication method therefor, including: providing a gate; depositing polymer material onto the gate to form a dielectric layer; performing supercritical fluids treatment on the gate having the dielectric layer deposited; depositing organic semiconductor layer material on the dielectric layer having been processed, to form an organic semiconductor layer; depositing electrode layer material on the organic semiconductor layer and forming an electrode layer. The dielectric properties of the dielectric layer after adopting the supercritical fluids treatment have been significantly improved. While the hysteresis effect of the dielectric layers in the OFET devices has been basically eliminated, the sub-threshold slope of the OFET is also significantly reduced, the carrier mobility is effectively improved. Additionally, an OFET switching rate after being processed is improved, and, by connecting the LEDs in series, the switching rate of the LED is increased.Type: GrantFiled: April 17, 2020Date of Patent: March 19, 2024Assignee: PEKING UNIVERSITY SHENZHEN GRADUATE SCHOOLInventors: Hong Meng, Yuhao Shi, Xinwei Wang, Lin Ai
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Patent number: 11902524Abstract: An embodiment of the present description provides a decoding method and device for a quantization block as well as an electronic device.Type: GrantFiled: March 7, 2019Date of Patent: February 13, 2024Assignee: PEKING UNIVERSITY SHENZHEN GRADUATE SCHOOLInventors: Ronggang Wang, Zhenyu Wang, Wen Gao
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Patent number: 11875513Abstract: A self-adaptive point cloud stripe division method. The method comprises: firstly, carrying out space division with a certain depth on a point cloud to obtain a plurality of local point clouds; then, counting the number of points in each of the local point clouds, comparing same with an upper and lower limit for the number of stripe points, and determining whether the number of points satisfies a requirement; and after a series of re-segmentation or re-fusion operations on the local point clouds, adjusting the number of points in each of the local point clouds until the number of points satisfies a range, thereby obtaining a final point cloud stripe. A plurality of local structures capable of being independently coded and decoded are obtained by means of division of a point cloud stripe, and this supports parallel processing, enhances system fault tolerance, and improves coding efficiency.Type: GrantFiled: April 12, 2019Date of Patent: January 16, 2024Assignee: PEKING UNIVERSITY SHENZHEN GRADUATE SCHOOLInventors: Ge Li, Yiting Shao, Jiamin Jin
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Patent number: 11870994Abstract: A method, system, device and computer-readable storage medium for inverse quantization. The method comprises: determining an initial weighted inverse quantization matrix, wherein, the initial weighted inverse quantization matrix is the same as the quantized block in size; setting some matrix elements in the initial weighted inverse quantization matrix to zero to obtain a weighted inverse quantization matrix, wherein, determining the matrix elements that need to be zeroed according to the size of the quantized block; weighted inverse quantizing the quantized coefficients in the quantized block to generate corresponding inverse transform coefficients, wherein, the value of the matrix element corresponding to the position of the quantized coefficient in the weighted inverse quantization matrix is used as a weight coefficient of the weighted inverse quantization.Type: GrantFiled: March 6, 2019Date of Patent: January 9, 2024Assignee: PEKING UNIVERSITY SHENZHEN GRADUATE SCHOOLInventors: Ronggang Wang, Zhenyu Wang, Wen Gao
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Patent number: 11840582Abstract: The present disclosure relates to a method of synthesizing cyclosporine derivatives. The method includes: providing a precursor fluid of the cyclosporine derivative, an alkaline fluid and a ClCH2OCOCl solution; premixing the precursor fluid and the alkaline fluid to obtain a premixed solution; feeding the premixed solution into a first reaction chamber, reacting to prepare a first reaction liquid; feeding the first reaction liquid into a second reaction chamber, reacting the first reaction liquid with a CO2 fluid to prepare a second reaction liquid; and reacting the second reaction liquid with the ClCH2OCOCl solution.Type: GrantFiled: July 12, 2021Date of Patent: December 12, 2023Assignee: Peking University Shenzhen Graduate SchoolInventors: Zhen Yang, Qingzhou Zhang, Fengxia Li, Chongguo Jiang, Jianxian Gong, Jun Huang, Weibin Zhang
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Patent number: 11783459Abstract: Embodiments of the present application provide a method and a device of inverse tone mapping and an electronic device. The method includes: obtaining one or more low dynamic range images; performing a decomposition operation to the low dynamic range image to acquire a detail layer and a basic layer of the low dynamic range image; restoring the detail layer and the basic layer by using a predetermined first restoration network and a second restoration network to acquire restored detail layer and basic layer; and adjusting the restored detail layer and basic layer by using a predetermined fusion network to acquire an adjusted high dynamic range image. With the technical solution of the present application, the conversion from a low dynamic range image to a high dynamic range image can be more robustly completed without complicated parameter settings.Type: GrantFiled: June 19, 2019Date of Patent: October 10, 2023Assignee: PEKING UNIVERSITY SHENZHEN GRADUATE SCHOOLInventors: Ronggang Wang, Chao Wang, Wen Gao
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Patent number: 11703537Abstract: Disclosed are method and an apparatus for analysis of an interface state of a MIS-HEMT device.Type: GrantFiled: April 2, 2020Date of Patent: July 18, 2023Assignee: PEKING UNIVERSITY SHENZHEN GRADUATE SCHOOLInventors: Xinnan Lin, Shuhao Xiong
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Publication number: 20230186091Abstract: Disclosed are a method and a device for determining a task-driven pruning module, and a computer readable storage medium. The method includes: obtaining an input task and a task quantity of a neural network to be pruned, and output information of a component module of the neural network to be pruned; determining a task correlation degree of the component module according to the input task, the task quantity and the output information; determining an input information retention degree of the component module according to the task quantity and the output information; determining an importance index value of the component module according to the task correlation degree and the input information retention degree; and determining the pruning module in the neural network to be pruned according to the importance index value.Type: ApplicationFiled: February 25, 2022Publication date: June 15, 2023Applicant: PEKING UNIVERSITY SHENZHEN GRADUATE SCHOOLInventors: Wei GAO, Yang GUO, Ge LI
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Publication number: 20230157996Abstract: The present application provides a small-molecule inhibitor targeting an EB virus nuclear antigen protein, and/or a pharmaceutical composition containing the same, which can be used for the treatment of a disease caused by EBNA1 activity, such as, but not limited to, cancer, infectious mononucleosis, chronic fatigue syndrome, multiple sclerosis, systemic lupus erythematosus and/or rheumatoid arthritis. The present application further provides a small-molecule inhibitor targeting an EB virus nuclear antigen protein, and/or a pharmaceutical composition containing the same, which can be used for the treatment of a disease caused by EBV infection in a lytic and/or latent phase.Type: ApplicationFiled: December 2, 2022Publication date: May 25, 2023Applicants: Shenzhen Bay Laboratory, Peking University Shenzhen Graduate SchoolInventors: Zhendong ZHU, Zhengshuang XU, Ting LI, Chao CHE, Qingzhou ZHANG, Sigui CHEN, Huangcan CHEN, Dehu XIANG, Zhen YANG
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Publication number: 20230143813Abstract: A compound of Formula I compound—Ovatodiolide which is safe and effective to use in a pharmaceutical composition for inhibition of SARS-CoV-2 is provided. The pharmaceutical composition comprising a safe and effective amount of a compound of Formula I compound—Ovatodiolide or pharmaceutically acceptable salts thereof, together with a pharmaceutically acceptable carrier, which has great potential to treat SARS-CoV-2 induced COVID-19 based on a safe and effective amount of a compound of Formula I compound—Ovatodiolide.Type: ApplicationFiled: April 17, 2020Publication date: May 11, 2023Applicants: Peking University Shenzhen Graduate School, CNS Biotek Corp., Gansu Evergreen Pharmaceuticals, Co., Ltd.Inventors: Zhen Yang, Yew-Min Tzeng, Linqi Zhang, Junmin Quan, Qing Chang, Qi Zhang, Chien-Ming Lee
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Publication number: 20230093494Abstract: An organic field-effect transistor and a fabrication method therefor, including: providing a gate; depositing polymer material onto the gate to form a dielectric layer; performing supercritical fluids treatment on the gate having the dielectric layer deposited; depositing organic semiconductor layer material on the dielectric layer having been processed, to form an organic semiconductor layer; depositing electrode layer material on the organic semiconductor layer and forming an electrode layer. The dielectric properties of the dielectric layer after adopting the supercritical fluids treatment have been significantly improved. While the hysteresis effect of the dielectric layers in the OFET devices has been basically eliminated, the sub-threshold slope of the OFET is also significantly reduced, the carrier mobility is effectively improved. Additionally, an OFET switching rate after being processed is improved, and, by connecting the LEDs in series, the switching rate of the LED is increased.Type: ApplicationFiled: April 17, 2020Publication date: March 23, 2023Applicant: PEKING UNIVERSITY SHENZHEN GRADUATE SCHOOLInventors: Hong MENG, Yuhao SHI, Xinwei WANG, Lin AI