Patents by Inventor Fang A. Zhang
Fang A. Zhang 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: 11699004Abstract: One embodiment described herein provides a system and method for simulating behavior of a quantum circuit that includes a plurality of quantum gates. During operation, the system receives information that represents the quantum circuit and constructs an undirected graph corresponding to the quantum circuit. A respective vertex within the undirected graph corresponds to a distinct variable in a Feynman path integral used for computing amplitude of the quantum circuit, and a respective edge corresponds to one or more quantum gates. The system identifies a vertex within the undirected graph that is coupled to at least two two-qubit quantum gates; simplifies the undirected graph by removing the identified vertex, thereby effectively removing the two-qubit quantum gates coupled to the identified vertex; and evaluates the simplified undirected graph, thereby facilitating simulation of the behavior of the quantum circuit.Type: GrantFiled: March 19, 2021Date of Patent: July 11, 2023Assignee: Alibaba Group Holding LimitedInventors: Jianxin Chen, Fang Zhang, Yaoyun Shi, Jiachen Huang, Michael Newman
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Publication number: 20230195322Abstract: An SPD-based memory monitoring and service life prediction method and system. Said method includes: acquiring parameter information of each memory bank in a server, and setting a weight for the parameter information; reading configuration information of each memory bank, and calculating occupation ratio information of parameters of each memory bank according to the configuration information and the parameter information; calculating state information of each memory bank according to the weight and the occupation ratio information; determining an influence factor according to the number of CPUs in the server and the number and position of memory banks in each CPU; and calculating a final memory state value according to the influence factor and the state information, and according to the used time and the state information of each memory bank, calculating the remaining service life of each memory bank by means of piecewise fitting using a least square method.Type: ApplicationFiled: January 23, 2021Publication date: June 22, 2023Inventor: Fang ZHANG
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Patent number: 11663181Abstract: A database replication using heterogenous encoding is provided. Aspects include obtaining a database and analyzing a data pattern of data in the database. Aspects also include identifying a plurality of candidate encoding formats and evaluating a computing cost for encoding the database for each of the plurality of candidate encoding formats. Aspects further include selecting an encoding format from the plurality of candidate encoding formats based at least in part on the computing cost and storing a backup copy of the database using the encoding format.Type: GrantFiled: August 10, 2021Date of Patent: May 30, 2023Assignee: International Business Machines CorporationInventors: Peng Hui Jiang, Su Liu, Jun Su, He Fang Zhang
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Publication number: 20230155429Abstract: The present disclosure provides a stator core, a magnetic levitation bearing, and a motor. The stator core is used in the magnetic levitation bearing and includes an annual yoke. The annular yoke has an inner circumferential wall and an outer circumferential wall, a plurality of pole pillars are disposed on the inner circumferential wall, and each of the plurality of pole pillars extends towards an axis of the inner circumferential wall, there is a distance D between an axis of the outer circumferential wall and the axis of the inner circumferential wall, and D?0 is satisfied. According to the stator core, the magnetic levitation bearing, and the motor of the present disclosure, the stator core has a non-centrosymmetric structure, so that a cross-sectional area of a magnetic path in some region of the stator core is increased, which is beneficial to an improvement of an output force of the magnetic levitation bearing.Type: ApplicationFiled: January 23, 2023Publication date: May 18, 2023Applicant: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAIInventors: Weilin GUO, Gao GONG, Fang ZHANG, Xin LI, Zhehao DENG, Jianhui WANG
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Publication number: 20230136286Abstract: This application provides a communication resource scheduling method and an apparatus. The communication resource scheduling method in this application may include: indicating that a first resource of a first cell is used for first transmission, and indicating that a second resource of a neighboring cell of the first cell is used for second transmission, where at least one of time domain, frequency domain, space domain, code domain, or power domain of the second resource is different from at least one of time domain, frequency domain, space domain, code domain, or power domain of the first resource. In embodiments of this application, different scheduling manners may be used for the first cell and the neighboring cell of the first cell, to meet different service requirements of terminal devices in different cells, and avoid uplink and downlink interference while meeting the different service requirements.Type: ApplicationFiled: December 27, 2022Publication date: May 4, 2023Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Quanzhong GAO, Heng XU, Zongdi YUE, Liwen ZHANG, Fang ZHANG
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Publication number: 20230125240Abstract: This application provides a storage system includes disks grouped into disk groups. One disk group processes an IO service, and another disk group is in an energy-saving state or a sleep state and provides a standby disk for a previous disk group. IO load is focused on a disk in one disk group, so that a requirement for processing the IO service is satisfied by using this group of disks. In addition, the another disk group may save energy or sleep, so that more energy consumption can be reduced. Moreover, resource pools of different levels are implemented by using a plurality of disk groups. When a disk in a previous disk group is in shortage, a capacity of the previous disk group can be expanded by using a next disk group.Type: ApplicationFiled: December 22, 2022Publication date: April 27, 2023Inventors: Jiangtao Wang, Na Wang, Fang Zhang
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Publication number: 20230124831Abstract: A method for calculating the steady-state fault current of a modular multilevel converter (MMC) comprises calculating the dc-side critical resistance values RA/B, RB/C and RC/D of the MMC based on the bridge arm inductance coefficient k and the ac-side reactance Xac of the MMC; Then, determining the operating modes of the MMC based on RA/B, RB/C and RC/D, and calculating the steady-state dc fault current and the conduction overlap angle respectively under various operating modes without considering the ac-side resistance based on the parameters k, Us, Rdc and the dc-side critical resistance values RA/B, RB/C and RC/D; After that the steady-state AC fault current amplitude and phase angle for each operating mode without considering the AC side resistance are calculated based on the DC current and conduction overlap angle for each operating mode, respectively. Finally, the steady-state AC fault current amplitude and phase angle are calculated for various operating modes considering the AC side resistance.Type: ApplicationFiled: October 20, 2020Publication date: April 20, 2023Inventors: Jinghan HE, Meng LI, Yiping LUO, Xiaojun WANG, Yin XU, Dahai ZHANG, Guomin LUO, Fang ZHANG, Xiangyu WU, Pinghao NI, Ying WANG
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Publication number: 20230090266Abstract: Techniques are described with regard to managing transaction size during a database replication process. An associated computer-implemented method includes identifying each of at least one transaction associated with at least one source database stored in a replication capture memory, identifying at least one potential excessive memory transaction by applying, via at least one machine learning pattern detection model, pattern detection to each of the at least one transaction stored in the replication capture memory, and constructing at least one compact data unit associated with each of the at least one potential excessive memory transaction. The computer-implemented method further includes facilitating compact data unit transmission to a replication apply server system in order to replicate the at least one compact data unit associated with each of the at least one potential excessive memory transaction to at least one target database via a replication apply server application.Type: ApplicationFiled: September 22, 2021Publication date: March 23, 2023Inventors: He Fang Zhang, Xue Bo, De Song Li, Wen Kui Zhou, Yin Xia, Dong Chen
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Patent number: 11598885Abstract: Disclosed is a method for adaptive identification of erroneous GPS observed value, including: acquiring positioning information of a vehicle from a GPS sensor, and extracting first observed value data; acquiring posture information and speed information of the vehicle to acquire dead reckoning trajectory data of the vehicle; eliminating the erroneous GPS observed values based on respective data on data status value, heading significant bit, the number of satellites used and horizontal dilution of precision in the first observed value data to obtain second observed value data; constructing pose graph data based on the second observed value data and acquiring processing result information; analyzing and optimizing the processing result information to eliminate the erroneous GPS observed values of which the cost function exceeds a preset cost function threshold to obtain third observed value data; and constructing a high-precision map based on the third observed value data and three-dimensional scene map data.Type: GrantFiled: April 15, 2021Date of Patent: March 7, 2023Assignee: Beijing IDRIVERPLUS Information Technology Co., Ltd.Inventors: Guoqi Peng, You Huang, Guolong Zhang, Fang Zhang, Xiaofei Li, Dezhao Zhang, Xiao Wang, Shuhao Huo
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Publication number: 20230051996Abstract: Embodiments of the invention are directed to database replication using heterogenous encoding. Aspects include obtaining a database and analyzing a data pattern of data in the database. Aspects also include identifying a plurality of candidate encoding formats and evaluating a computing cost for encoding the database for each of the plurality of candidate encoding formats. Aspects further include selecting an encoding format from the plurality of candidate encoding formats based at least in part on the computing cost and storing a backup copy of the database using the encoding format.Type: ApplicationFiled: August 10, 2021Publication date: February 16, 2023Inventors: Peng Hui Jiang, Su Liu, Jun Su, He Fang Zhang
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Patent number: 11579830Abstract: Embodiments generally enable a mobile device to display a window of a remote desktop on a mobile device with a native layout. In some embodiments, a method includes receiving a remote desktop display request from a mobile client device, wherein the remote desktop display request includes display information of the mobile client device. The method further includes generating a copy of a window process of a remote desktop computer. The method further includes generating a virtual display based at least in part on the copy of the window process of the remote desktop computer and on the display information of the mobile client device. The method further includes sending virtual display information to the mobile client device based at least in part on the virtual display.Type: GrantFiled: October 31, 2018Date of Patent: February 14, 2023Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Dong Jun Zong, Da Li Liu, Yue Wang, Jing Xing, Jian Fang Zhang, Qi Feng Huo
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Patent number: 11566109Abstract: A polysiloxane-polyester block copolymer is provided, which comprises: (i) a siloxane resin block comprising: a siloxane unit represented by the formula: R1SiO3/2, wherein R1 is a monovalent hydrocarbon group, and comprising optionally a siloxane unit represented by the formula: SiO4/2; (ii) a siloxane linear block represented by the formula: (R22SiO2/2)n, wherein each R2 is independently a monovalent hydrocarbon group, and ānā is a positive number of at least 5; and (iii) a polyester block. The polysiloxane-polyester block copolymer can be used for a protective coating on a substrate which is made of aluminum, stainless steel, iron, plastics or glass to provide durable heat-resistance, hot hardness, release and anti-graffiti properties.Type: GrantFiled: August 16, 2017Date of Patent: January 31, 2023Assignee: DOW SILICONES CORPORATIONInventors: Wenjie Chen, Zhihua Liu, Fang Zhang, Jiayin Zhu
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Publication number: 20220413974Abstract: Edge device task management by receiving an indicator corresponding to a first container running a task on a first edge device of a cluster of edge devices, wherein the indicator indicates an error status of the first container, and wherein task data of the task is stored in a first local storage of the first edge device, selecting a second edge device from the cluster of edge devices, wherein a second container on the second edge device is to run the task, instructing the first and second edge devices to transfer the task data from the first local storage of the first edge device to a second local storage of the second edge device, and in response to receiving a notification that indicates the task data has been transferred from the first local storage to the second local storage, sending the task to the second container.Type: ApplicationFiled: June 28, 2021Publication date: December 29, 2022Inventors: Yue Wang, Jing Xing, Jian Fang Zhang, Da Li Liu, Juan Liu, Yong Wang
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Patent number: 11518432Abstract: Disclosed is zero point compensation method and device for EPS. The method includes: acquiring a value of lateral distance when a vehicle travels along an ideal path and obtaining a smoothed lateral distance value, for each control cycle; calculating a longitudinal movement distance value of the vehicle for each control cycle; performing linear fitting to obtain a linear relationship between the longitudinal movement distance value and the smoothed lateral distance value; calculating a zero point compensation angle for the EPS based on a first parameter in the linear relationship and a preset steering wheel transmission ratio, and compensating a steering control angle; and determining that the zero point compensation angle passes verification when a minimum residual error is less than a preset acceptable deviation. In this way, the time required for calibration can be reduced, and the accuracy and effectiveness of the control algorithm can be improved.Type: GrantFiled: March 31, 2021Date of Patent: December 6, 2022Assignee: Beijing IDRIVERPLUS Information Technology Co., Ltd.Inventors: Shibin Zhu, Bo Yan, Cheng Xu, Fang Zhang, Xiaofei Li, Dezhao Zhang, Xiao Wang, Shuhao Huo
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Patent number: 11502094Abstract: A semiconductor device includes a string of transistors stacked along a vertical direction above a substrate of the semiconductor device. The string can include a first substring, a channel connector disposed above the first substring, and a second substring. The first substring includes a first channel structure having a first channel layer and a first gate dielectric structure that extend along the vertical direction. The second substring is stacked above the channel connector, and has a second channel structure that includes a second channel layer and a second gate dielectric structure that extend along the vertical direction. The channel connector, electrically coupling the first and the second channel layer, is disposed below the second gate dielectric structure to enable formation of a conductive path in a bottom region of the second channel layer. The bottom region is associated with a lowermost transistor in the second substring.Type: GrantFiled: March 28, 2019Date of Patent: November 15, 2022Assignee: YANGTZE MEMORY TECHNOLOGIES CO., LTD.Inventors: Ruo Fang Zhang, Enbo Wang, Haohao Yang, Qianbing Xu, Yushi Hu, Qian Tao
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Publication number: 20220333644Abstract: Disclosed are a magnetic bearing, a compressor and an air conditioner. The magnetic bearing includes a radial stator, where the radial stator has a plurality of stator teeth extending inwardly in a radial direction thereof; two axial stators are arranged on two axial sides of the stator teeth, respectively; and radial control coils are wound on the stator teeth, the radial control coil being located outside an area of the stator teeth covered oppositely by the two axial stators. The magnetic bearing, the compressor and the air conditioner can effectively reduce the degree of coupling between a radial electromagnetic control magnetic circuit and an axial electromagnetic control magnetic circuit, and reduce the control difficulty of the magnetic bearing.Type: ApplicationFiled: August 24, 2020Publication date: October 20, 2022Inventors: Mingzhu Dong, Yusheng Hu, Bin Chen, Xiaobo Zhang, Fang Zhang, Gao Gong, Chao Zhang, Mingxing Deng
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Publication number: 20220335319Abstract: Systems and methods are provided for performing quantum operations. Consistent with disclosed embodiments, a vectorized quantum controller can receive a command from a computing device, the command indicating application of a quantum gate to a qubit of the quantum processor. The vectorized quantum controller can convert the command into one or more quantum assembly instructions, the one or more quantum assembly instructions including a vector instruction for creating a register of qubits, the register including an indication of the qubit. The vectorized quantum controller can execute the one or more quantum assembly instructions to cause the qubit controller to apply the quantum gate to the qubit, and can providing an output to the computing device.Type: ApplicationFiled: April 20, 2021Publication date: October 20, 2022Inventors: Fang ZHANG, Jianxin CHEN
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Patent number: 11466731Abstract: Magnetic levitation bearing structure includes a cylinder body, a rotating shaft, a motor stator, a motor rotor, an axial bearing, a radial bearing and a displacement sensing device; the displacement sensing device, the axial bearing stator, and the radial bearing stator are directly fixed on an inner wall of the cylinder body.Type: GrantFiled: September 2, 2019Date of Patent: October 11, 2022Assignee: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAIInventors: Penghui Liu, Xiaobo Zhang, Fang Zhang, Gao Gong, Chao Zhang, Jiuzhan Su, Xin Li, Ruhao Dong, Mingxing Deng, Fei Wang
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Publication number: 20220300038Abstract: A support structure member and a display device. The support structure member includes a first support assembly, including a plurality of support members arranged in a first direction, in which the plurality of support members can be slidably arranged relative to one another in the first direction, and a gap is formed between two adjacent support members, and the first support assembly is bent by each position of the gap; a second support assembly, movably arranged relative to the first support assembly at least one side of the support members in a thickness direction, in which the second support assembly includes a connecting unit and a hinge unit connected to the connecting unit, the second support assembly moves to the gap of the first support assembly, and in the gap, the hinge unit and the support members together support a to-be-supported member.Type: ApplicationFiled: June 6, 2022Publication date: September 22, 2022Applicant: Hefei Visionox Technology Co., Ltd.Inventors: Yaling Wang, Leichao Zhang, Fang Zhang, Zhengyang Li
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Patent number: 11416468Abstract: A computer-implemented method for managing an index table associated with a data table includes obtaining an index entry associated with a key in the data table. The computer-implemented method further includes determining whether an index page associated with the index entry is in a buffer pool, wherein the buffer pool includes a plurality of index pages loaded from the index table and at least one temp index. The computer-implemented method further includes adding, in response to determining that the index page associated with the index entry is not in the buffer pool, the index entry into the at least one temp index. The computer-implemented method further includes consolidating the at least one temp index into the index table.Type: GrantFiled: July 21, 2020Date of Patent: August 16, 2022Assignee: International Business Machines CorporationInventors: Xue Bo, Xiaobo Wang, Shuo Li, Sheng Yan Sun, He Fang Zhang, Yue Li