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51.发明申请公开(公告)号：US20230028793A1
公开(公告)日：2023-01-26
申请号：US17858028
申请日：2022-07-05
Inventor： Qin Zhang , Jihan Liu , Yusheng Chen , Caihua Xiong
Abstract: The disclosure provides a dynamic interaction-oriented subject's limb time-varying stiffness identification method and device. The method includes: the combination of subject's limb displacement and measured force data or the combination of angle and measured torque data is collected; based on the time-varying dynamic system constructed based on a second-order impedance model, the linear parameter varying method is utilized to substitute the time-varying impedance parameters and reconstruct the restoring force/torque expression; iterative identification is performed on variable weights, dynamic interaction force/torque, and restoring force/torque by using time-varying dynamic parameters based on the dynamic interaction force/torque expression expanded from basis function; the time-varying stiffness is solved by using variable weights and dynamic interaction force/torque according to expression with substituted the time-varying impedance parameters. The disclosure not only improves the accuracy of the time-varying stiffness identification technology but also expands the application scenarios of the time-varying stiffness identification technology.
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公开(公告)号：US20220383951A1
公开(公告)日：2022-12-01
申请号：US17873186
申请日：2022-07-26
Inventor： Xingsheng WANG , Fan Yang , Lingjun Zhou , Chengxu WANG , Xiangshui MIAO
IPC: G11C13/00
Abstract: A read and write circuit of a three-dimensional phase-change memory including an operation control circuit and a read and write operation circuit connected to each other. The operation control circuit is configured to load a correct operation pulse onto the read and write operation circuit. A read and write unit in the read and write operation circuit is connected to a memory cell and is configured to load the correct operation pulse onto the memory cell corresponding to the three-dimensional phase-change memory and to mirror the correct operation pulse to a mirror current. A bandgap reference source and a hysteresis comparator are connected to a mirror circuit branch. A feedback chopper circuit loop is connected across the memory cell and the mirror circuit branch and is configured to monitor a current flowing through the memory cell in real time.
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53.发明授权公开(公告)号：US11493581B2
公开(公告)日：2022-11-08
申请号：US17707963
申请日：2022-03-30
Inventor： Xiaotao Han , Zelin Wu , Qinying Liu , Qi Chen , Quanliang Cao , Liang Li
Abstract: Disclosed are a pulse magnet device based on magnetic flux compression, and a high-flux measurement method. The device includes a diamagnetic block, reinforcing plates, screw rods and a magnet coil. The diamagnetic block and the magnet coil are concentrically arranged in the axial direction; the reinforcing plates are arranged at ends of the magnet coil and the diamagnetic block and are connected by means of the screw rods. The diamagnetic block is used for inducing the induction current opposite the coil current during the discharge of the magnet coil, and for compressing the magnetic field to the area between the diamagnetic block and the magnet coil. The intensity and uniformity of the magnetic field around the magnet coil are improved by means of increasing the magnetic flux density.
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54.发明申请公开(公告)号：US20220336743A1
公开(公告)日：2022-10-20
申请号：US17842800
申请日：2022-06-17
Inventor： Hao TONG , Ruizhe ZHAO , Xiangshui MIAO
IPC: H01L45/00
Abstract: The disclosure belongs to the field of microelectronics, and specifically, relates to a method of inducing crystallization of a chalcogenide phase-change material and application thereof. To be specific, a dielectric material is brought into contact with an interface of the chalcogenide phase-change material. The dielectric material is in an octahedral configuration, and the dielectric material provides a crystal nucleus growth center for the crystallization of the chalcogenide phase-change material at the interface between the two, so as to induce the phase-change material to accelerate the crystallization. The method is further applied in a phase-change memory cell. Among all the dielectric material layers in contact with the chalcogenide phase-change material layer, the dielectric material structure of at least one side of the dielectric material layer is an octahedral configuration.
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公开(公告)号：US20220334918A1
公开(公告)日：2022-10-20
申请号：US17763926
申请日：2020-06-16
Inventor： Wei TONG , Dan FENG , Jingning LIU , Xueliang WEI , Weilin ZHU
Abstract: Disclosed in the present invention are a method and a system for ensuring the failure atomicity in a non-volatile memory, which belong to the field of computer storage. The method comprises: executing transactions encapsulated by one or more operations that need to ensure the failure atomicity in accordance with the following steps: executing operations in a current transaction in sequence, for each write operation in the current transaction, determining whether the oldest value of its corresponding data is saved into a log of the non-volatile memory, if so, then creating an UndoRedo log entry for it, otherwise creating a Redo log entry for it; using corresponding log management strategies according to types of log entries; after all operations are executed, committing the current transaction; and completing the execution of the current transaction; wherein information recorded in the UndoRedo log entries comprises: transaction number, write operation address, and oldest value and new value of corresponding data; and information recorded in the Redo log entries comprises: transaction number, write operation address, and new value of corresponding data. The present invention can reduce the overhead caused by ensuring the failure atomicity in the NVMM.
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Patent Agency Ranking
公开(公告)号：US20220299674A1
公开(公告)日：2022-09-22
申请号：US17629414
申请日：2020-06-23
Inventor： Xiangdong LIU , Xikai LIU , Dong MA , Lulu WANG
Abstract: The invention discloses a superconducting gravity gradiometer and a sensitivity improvement method thereof including a pair of superconducting test masses, a pair of negative-stiffness superconducting coils, a pair of positive-stiffness superconducting coils, and a superconducting circuit coupling the test masses into two-degree-of-freedom superconducting magnetic spring oscillators. Superconducting wires are used to connect the negative-stiffness superconducting coils in series to form a superconducting loop, the differential mode stiffness of the two-degree-of-freedom superconducting magnetic spring oscillators is reduced, and the ratio of the common mode stiffness to the differential mode stiffness is increased. When using the method of the invention to configure the magnetic spring oscillator of a superconducting gravity gradiometer, when configuring a vertical diagonal component superconducting gravity gradiometer with a full magnetic suspension for the test mass, the sensitivity of gradient measurement is significantly improved.
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公开(公告)号：US11449355B2
公开(公告)日：2022-09-20
申请号：US16773004
申请日：2020-01-27
Inventor： Hai Jin , Song Wu , Qizhi Tang
Abstract: The present disclosure discloses a NVM-based method for performance acceleration of containers. The method comprises classifying each image layer of mirror images as either an LAL (Layer above LDL) or an LBL (Layer below LDL) during deployment of containers; storing the LALs into a non-volatile memory and selectively storing each said LBL into one of the non-volatile memory and a hard drive; acquiring hot image files required by the containers during startup and/or operation of the containers and storing the hot image files required by the containers into the non-volatile memory; and sorting the mirror images in terms of access frequency according to at least numbers of times of access to the hot image files so as to release the non-volatile memory currently occupied by the mirror image having the lowest access frequency when the non-volatile memory is short of storage space.
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公开(公告)号：US11437098B2
公开(公告)日：2022-09-06
申请号：US17037655
申请日：2020-09-29
Inventor： Xiangshui Miao , Qi Lin , Hao Tong
Abstract: An operating method for improving the performance of a selector device is provided, including: determining and applying a direct current (DC) or alternating current (AC) operating voltage and a limit current of the selector device, so that the selector device circulates until a off-state resistance is reduced; continuously applying the operating voltage and the limit current to the selector device, so that the selector device circulates until the off-state resistance is reduced to a minimum value; continuously applying the operating voltage and the limit current to the selector device, so that the selector device circulates until the off-state resistance is increased; continuously applying the operating voltage and the limit current to the selector device, so that the selector device circulates until the off-state resistance is increased to a maximum value; and adjusting the operating voltage and the limit current, and performing DC or AC operation pulsed operation on a selector.
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公开(公告)号：US11436400B2
公开(公告)日：2022-09-06
申请号：US16895545
申请日：2020-06-08
Inventor： Xiaofei Liao , Qingxiang Chen , Long Zheng , Hai Jin , Pengcheng Yao
IPC: G06F30/331 , G06F16/901 , G06F9/38 , G06F9/54 , G06F12/0806
Abstract: The present invention relates to an optimization method for graph processing based on heterogeneous FPGA data streams. The method can balance processing loads between the CPU processing module and the FPGA processing module during acceleration of graph data processing.
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公开(公告)号：US20220255739A1
公开(公告)日：2022-08-11
申请号：US17444224
申请日：2021-08-02
Inventor： Peng XU , Tianyang CHEN , Yubo ZHENG , Hai JIN , Wei WANG
Abstract: The present invention relates a method for ensuring search completeness of searchable public key encryption, applicable to a blockchain network formed by a plurality of computer nodes. The method at least comprises: the blockchain network receiving a keyword ciphertext and a corresponding file-identifier ciphertext generated by a transmitting end based on the public key encryption, and at least one miner storing the ciphertexts in a ciphertext table; the blockchain network receiving a search trapdoor Tw transmitted by a receiving end, generated according to a private key and a keyword w to be searched; the at least one miner in the blockchain network performing a secure search based on information of a state table and the search trapdoor Tw, and outputting a search result to the blockchain network; and the blockchain network feeding the search result back to the receiving end. The invention uses the blockchain technology to solve the long-standing search completeness problem in searchable public key encryption, and the proposed method has universality.
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