Patents Assigned to Tsinghua University
  • Publication number: 20230418768
    Abstract: The present disclosure provides a sensitive data reading method and apparatus, an electronic device, and a storage medium. By initiating a read request for sensitive data stored in a memory page or a memory region, determining a read-only permission result in response to the read request, where the read-only permission result indicates whether the memory page or the memory region is provided with a read-only permission, and reading the sensitive data if the read-only permission result indicates that the memory page or the memory region is provided with the read-only permission, that is, by verifying the read-only permission of the memory page or the memory region storing the sensitive data, embodiments of the present disclosure enable a fast lightweight verification of the integrity of the sensitive data, thereby ensuring that sensitive operations are not hijacked.
    Type: Application
    Filed: September 12, 2023
    Publication date: December 28, 2023
    Applicant: TSINGHUA UNIVERSITY
    Inventors: Chao ZHANG, Wende TAN, Yuan LI, Ying LIU, Jianping WU
  • Patent number: 11853801
    Abstract: The present disclosure relates to a plug-in for enhancing resource elastic scaling of a distributed data flow and a method for enhancing a plug-in for enhancing resource elastic scaling of a distributed data flow. The plug-in is connected to a scaling controller used for resource elastic scaling of a distributed data flow. The plug-in includes a decision maker, a decision model, and a scaling operation sample library. The scaling controller registers a data flow to the plug-in through a first interface. The scaling controller sends an optimal decision of resource scaling in each status to the plug-in through a second interface. The scaling operation sample library is configured to record the optimal decision of resource scaling in each status. The decision model is configured to predict a received data flow based on the optimal decision recorded in the scaling operation sample library, to generate a prediction decision.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: December 26, 2023
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Lijie Wen, Zan Zong
  • Publication number: 20230413593
    Abstract: An organic electroluminescent device and a display device. The organic electroluminescent device includes a first functional layer, a light-emitting layer, and a second functional layer that are sequentially stacked. The light-emitting layer includes a host material, a sensitizer, and a dye; the light-emitting layer includes N sections in a stacking direction, with a first section being in contact with the first functional layer and a Nth section being in contact with the second functional layer, N>1; where among the N sections, a section with the highest dye content is the highest critical section, where D1<Dmax and D1?Dother, and/or DN<Dmax and DN?Dother. The special composition of the light-emitting layer of the organic electroluminescent device can effectively reduce a probability that carriers are captured by the dye, thereby making the organic electroluminescent device have high luminescence efficiency by suppressing exciton quenching.
    Type: Application
    Filed: September 6, 2023
    Publication date: December 21, 2023
    Applicants: KunShan Go-Visionox Opto-Electronics Co., Ltd, TSINGHUA UNIVERSITY
    Inventors: Minghan CAI, Lian DUAN, Guomeng LI, Mengzhen LI, Hongyu WANG, Fangyi CAO
  • Patent number: 11845928
    Abstract: A method of DNA fragmentation is provided. The method comprising incubating a semi-solid biological sample which comprises the DNA with an auxiliary domain-directed nuclease having a binding affinity and selectivity to pre-defined sites in the DNA so as to yield a DNA fragment-of-interest, to thereby fragment the DNA.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: December 19, 2023
    Assignee: Tsinghua University
    Inventors: Ting Zhu, Yuval Ebenstein, Chunbo Lou, Wenjun Jiang, Xuejin Zhao, Tslil Gabrieli
  • Patent number: 11841319
    Abstract: An electrically modulated light source is provided. The electrically modulated light source comprises a carbon nanotube film structure. The electrically modulated light source heats up to a highest temperature and emits thermal radiation in less than 10 milliseconds after a voltage is applied, and the electrically modulated light source cools down to an initial temperature of the electrically modulated light source in less than 10 milliseconds after the voltage is removed. An modulation frequency of the electrically modulated light source is greater than or equal to 150 KHz. A non-dispersive infrared spectrum detection system used the electrically modulated light source, and a method for detecting gas used the electrically modulated light source are also provided.
    Type: Grant
    Filed: April 12, 2022
    Date of Patent: December 12, 2023
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Li-Wen Lai, Peng Liu, Duan-Liang Zhou, Qun-Qing Li, Shou-Shan Fan
  • Patent number: 11835442
    Abstract: A flow imaging system based on matrix laser scanning are provided. In the system, a beam splitter component modulates continuous laser generated by a laser source, and the continuous laser is focused on a focal plane by an illumination objective to form matrix spots. The matrix spots are irradiated on a single-cell axial flow of a fluid focusing component. When cells in the single-cell axial flow pass through the matrix spots, a fluorescent signal and a scattered light signal generated are received by a light collecting objective, and then sent to a photoelectric detector through a condenser. The photoelectric detector converts the fluorescence and scattered light signals excited into voltage signals, and the collecting card collects and converts the signals into digital signals, and sends the digital signals to a computer to be recovered through the computer, so as to obtain a cell image.
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: December 5, 2023
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Zheng You, Yong Han, Jingjing Zhao
  • Patent number: 11837871
    Abstract: A method for dispatching a power grid is disclosed. The method includes: obtaining a whole power generation interval scheduled for a cluster of renewable energy stations from a power grid dispatching center; establishing a decomposition model that includes an objection function and constraint conditions; decomposing the whole power generation interval with the decomposition model to obtain each power generation interval of each renewable energy station; and controlling each renewable energy station to generate powers based on each power generation interval. The objection function minimizes a total operating cost in the power grid and includes a renewable energy randomness indicating an actual power generation amount of each renewable energy station.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: December 5, 2023
    Assignees: TSINGHUA UNIVERSITY, STATE GRID CORPORATION OF CHINA
    Inventors: Wenchuan Wu, Yue Yang, Bin Wang, Mingjie Li
  • Patent number: 11831050
    Abstract: Disclosed are a method and apparatus for subzero start-up of a fuel cell. The method for the subzero start-up of the fuel cell includes: introducing a gas containing hydrogen having a mass percentage of 5% to 100% to a hydrogen electrode and an air electrode of the fuel cell (2) under a condition of minus 50° C. to 0° C.; applying a current or a voltage to the fuel cell (2), and utilizing ohmic heat generation, reaction heat, and concentration overpotential heat generation of the fuel cell (2) to raise the fuel cell (2) to a required temperature or to cause the fuel cell (2) to reach to a set time, so as to implement the subzero start-up of the fuel cell.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: November 28, 2023
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Jianbo Zhang, Dechun Si, Junning Wen, Kei Ono
  • Patent number: 11823062
    Abstract: The present disclosure discloses an unsupervised reinforcement learning method and apparatus based on Wasserstein distance. The method includes: obtaining a state distribution in a trajectory obtained with guidance of a current policy of an agent; calculating a Wasserstein distance between the state distribution and a state distribution in a trajectory obtained with another historical policy, and calculating a pseudo reward of the agent based on the Wasserstein distance, replacing a reward fed back from an environment in a target reinforcement learning framework with the pseudo reward, and guiding the current policy of the agent to keep a large distance from the other historical policy. The method uses Wasserstein distance to encourage an algorithm in an unsupervised reinforcement learning framework to obtain diverse policies and skills through training.
    Type: Grant
    Filed: March 21, 2023
    Date of Patent: November 21, 2023
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Xiangyang Ji, Shuncheng He, Yuhang Jiang
  • Patent number: 11822326
    Abstract: A voter-based method of controlling a redundancy is provided, including acquiring a processing element array in a target hardware, wherein the processing element array includes a plurality of processing elements, selecting a plurality of groups of processing elements from the processing element array so as to generate a voter set, wherein a corresponding voter is generated for each group of the plurality of groups of processing elements, and the corresponding voter configured to perform a voting operation in a redundancy control, acquiring, in response to a message indicating a fault state of a detected voter, a target voter from the voter set so as to replace the detected voter, and re-performing the voting operation in the redundancy control by using the target voter. An electronic device and a storage medium are further provided, which are implemented based on the processing element array of the target hardware.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: November 21, 2023
    Assignees: Beijing Superstring Academy of Memory Technology, Tsinghua University
    Inventors: Xiangyu Kong, Jianfeng Zhu, Shouyi Yin, Shaojun Wei
  • Patent number: 11824194
    Abstract: The present invention discloses a method for rapidly preparing a Prussian blue analogue with a monoclinic crystal structure. The Prussian blue analogue with a monoclinic crystal structure has a chemical formula of NaxM[Fe(CN)6]y·zH2O, where M=Mn or Fe, 1.5<×<2, and 0.5<y<1. In this method, a mixture of sodium ferrocyanide and sodium chloride is adopted as a solution A, and a solution of manganese salt or iron salt in water is adopted as a solution B; the solutions A and B are continuously and rapidly mixed by a micromixer, and the precipitation reaction is conducted to obtain a nano-precursor slurry; and the nano-precursor slurry is aged at 80° C. to 160° C. for 3 min to 2 h to obtain a Prussian blue analogue with a monoclinic crystal structure that has a particle diameter of 200 nm to 2,000 nm.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: November 21, 2023
    Assignee: Tsinghua University
    Inventors: Yangcheng Lu, Yuming Xi
  • Patent number: 11823030
    Abstract: There is provided a neural network information receiving method and system, and a sending method and system. The receiving method comprises: acquiring a reception initiation time for neuron information (S100); receiving rostral neuron information output by rostral neurons (S200); acquiring delay information of the rostral neuron information according to the reception initiation time, the rostral neuron information and a delay algorithm (S300); and determining composite information output by the rostral neurons according to the rostral neuron information and the delay information (S400). The receiving method and system and sending method and system take the delay information into consideration in the output information of neurons, such that the neuron information is able to carry more detailed time-domain information, thus augmenting operation modes of the neurons and enhancing the generalization ability of the whole network.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: November 21, 2023
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Luping Shi, Shuang Wu, Jing Pei, Guoqi Li
  • Patent number: 11818023
    Abstract: A traffic-aware switch-shared cache scheduling method includes: S1, setting a cache threshold of each outgoing port of a switch according to a traffic state of each outgoing port of the switch; S2, monitoring each outgoing port of the switch to determine whether an event of packet entry queue, packet exit queue, packet loss, buffer overflow or port queue state change occurs; S3, determining a traffic state of the outgoing port according to the event that occurs at the outgoing port and corresponding port queue state information; S4, setting a port control state according to the traffic state of the outgoing port; and S5, adjusting the cache threshold corresponding to the outgoing port according to the port control state, and performing S2 to continue monitoring until the switch stops working.
    Type: Grant
    Filed: April 25, 2022
    Date of Patent: November 14, 2023
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Yong Cui, Sijiang Huang, Mowei Wang
  • Patent number: 11816251
    Abstract: A method for managing data asset in a data bank is provided, including: acquiring a confirmation authentication request, wherein the confirmation authentication request includes a data asset to be confirmed, characteristic information of the data asset and characteristic information of a data provider uploaded by the data provider; performing a confirmation verification on the data asset through a confirmation blockchain based on the data asset, the characteristic information of the data asset and the characteristic information of the data provider in response to the confirmation authentication request; storing confirmation information corresponding to the data asset into the confirmation blockchain after it is determined that the data asset has passed the confirmation verification; inserting identification data for tracing a data owner into the data asset, obtaining and storing the data asset having the identification data.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: November 14, 2023
    Assignee: Tsinghua University
    Inventors: Jilong Wang, Qianli Zhang
  • Patent number: 11811337
    Abstract: A nanofiber actuator comprises a composite structure and a vanadium dioxide layer. The composite structure comprises a carbon nanotube wire and an aluminum oxide layer. The aluminum oxide layer is coated on a surface of the carbon nanotube wire, and the aluminum oxide layer and the carbon nanotube wire are located coaxially with each other. The vanadium dioxide layer is coated on a surface of the composite structure, and the vanadium dioxide layer and the composite structure are located non-coaxially with each other.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: November 7, 2023
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Guang Wang, He Ma, Xiang Jin, Hua Yuan, Yang Wei, Qun-Qing Li, Kai-Li Jiang, Shou-Shan Fan
  • Publication number: 20230351238
    Abstract: A thermalized state preparation method under a quantum system, a device and a storage medium relate to the field of quantum technologies. The method includes: acquiring a transformation process performed by a parameterized quantum circuit on an input quantum state of combined qubits to obtain n sets of measurement results (210); processing the second measurement results through a neural network to obtain weight parameters (220); computing a correlation function value of a mixed state of the target quantum system based on the weight parameters and the first measurement results (230); and computing an expected value of an objective function based on the correlation function value (240); adjusting variational parameters taking an expected value convergence of the objective function as a goal (250); and acquiring, under a condition that the expected value satisfies a convergence condition, the mixed state to approximately characterize a thermalized state of the target quantum system (260).
    Type: Application
    Filed: June 16, 2023
    Publication date: November 2, 2023
    Applicants: Tencent Technology (Shenzhen) Company Limited, Tsinghua University
    Inventors: Shixin ZHANG, Shengyu ZHANG, Hong YAO
  • Publication number: 20230352756
    Abstract: The present disclosure discloses a method for impurity removal and treatment in the recycling process of scrap positive electrode materials of lithium batteries.
    Type: Application
    Filed: May 25, 2023
    Publication date: November 2, 2023
    Applicant: SICHUAN ENERGY INTERNET RESEARCH INSTITUTE, TSINGHUA UNIVERSITY
    Inventors: Joey Chung-Yen JUNG, Jiujun ZHANG, Linshan DAI, Pang-Chieh SUI, Yifang SHI
  • Patent number: 11803409
    Abstract: A mobile edge computing method and apparatus are provided. The method which is implemented by a mobile edge computing (MEC) management network element includes: receiving an MEC virtualization resource request sent by a control plane of a target radio access network (RAN), wherein the control plane belongs to the target RAN to which user equipment (UE) is handed over, and the MEC virtualization resource request includes an MEC computing resource requirement of the UE; creating, based on the MEC virtualization resource request, a new virtual machine (VM) on an MEC server for the UE, wherein the new VM is used on the target RAN side after the handover; and sending first information of the new VM to the control plane, wherein the first information includes an ID of the new VM. According to the application, the efficiency of usage of resources during a handover of UE is significantly improved.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: October 31, 2023
    Assignees: Huawei Technologies Co., Ltd., Tsinghua University
    Inventors: Yong Li, Huan Yan, Yu Liu, Longyu Cao, Depeng Jin
  • Patent number: 11803360
    Abstract: A compilation method, a compilation apparatus suitable for an In-Memory Computing apparatus, a computing device and a storage medium. The compilation method includes: acquiring calculation information of an algorithm to be compiled; converting the algorithm to be compiled into the first intermediate representation according to the calculation information; mapping the first intermediate representation to the second intermediate representation; and compiling the algorithm to be compiled into instruction information recognized by the In-Memory Computing apparatus according to the hardware information, to make the In-Memory Computing apparatus execute the instruction information. The compilation method may compile the calculation information into instructions that may be directly executed by the In-Memory Computing apparatus, so as to realize the effect of accelerating the operations of various algorithms by using the In-Memory Computing apparatus.
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: October 31, 2023
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Huaqiang Wu, Ruihua Yu, Yilong Guo, Jianshi Tang, Bin Gao, He Qian
  • Patent number: 11802064
    Abstract: A capacitive deionization desalination device is provided. The capacitive deionization desalination device includes a mesh spacer and two carbon nanotube composite electrodes. The mesh spacer is located between the two carbon nanotube composite electrodes. Each carbon nanotube composite electrode includes at least one carbon nanotube film structure and a composite carbon layer, and the carbon nanotube film structure includes at least two carbon nanotube films, and the composite carbon layer includes activated carbon and carbon black, and the composite carbon layer is located on the carbon nanotube film structure.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: October 31, 2023
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Yang Wu, Shuai Liang, Xia Huang, Shou-Shan Fan