Patents by Inventor Wenyuan Xu
Wenyuan Xu 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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Publication number: 20240170664Abstract: A cathode material includes a plurality of first particles. Each first particle includes a secondary particle composed of a plurality of third particles, and the first particle includes a first lithium-containing transition metal oxide; and a plurality of second particles. The second particle includes a fourth particle and/or a secondary particle composed of a plurality of fourth particles, and the second particle includes a second lithium-containing transition metal oxide. The electrochemical device including the cathode material is significantly improved in the aspects of energy density, capacity attenuation and service life.Type: ApplicationFiled: January 31, 2024Publication date: May 23, 2024Applicant: NINGDE AMPEREX TECHNOLOGY LIMITEDInventors: Wenyuan LIU, Gang PENG, Ye LANG, Leimin XU
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Patent number: 11959866Abstract: A live flaw detection system for a multi-bundled conductor splicing sleeve and an application method thereof are disclosed. The system includes an upper apparatus and a lower apparatus, where the upper apparatus includes an unmanned aerial vehicle and an industrial X-ray machine, and a laser sensor, and the lower apparatus includes a press plate frame apparatus, vertical screw slide table modules, a horizontal screw slide table module, a projection imager, and a linear retractable apparatus. The unmanned aerial vehicle functions as a power apparatus that controls the system to be online or offline, the industrial X-ray machine is configured to perform ray flaw detection on each splicing sleeve, the laser sensor is configured to guide the unmanned aerial vehicle to land the lower apparatus on splicing sleeves accurately, and the press plate frame apparatus is configured to fixedly clamp the splicing sleeves.Type: GrantFiled: May 9, 2022Date of Patent: April 16, 2024Assignees: STATE GRID HUNAN ELECTRIC COMPANY LIMITED, STATE GRID HUNAN EXTRA HIGH VOLTAGE TRANSMISSION COMPANY, STATE GRID CORPORATION OF CHINAInventors: Dehua Zou, Shasha Peng, Zhipeng Jiang, Zhenyu Wang, Bocheng Li, Qiaosha Xiao, Yurong Xu, Zhenyu Chen, Wenyuan Zeng, Zhiguo Liu
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Patent number: 11936042Abstract: A cathode material includes: a plurality of first particles. Each first particle includes a secondary particle composed of a plurality of third particles, and the first particle includes a first lithium-containing transition metal oxide; and a plurality of second particles. The second particle includes a fourth particle and/or a secondary particle composed of a plurality of fourth particles, and the second particle includes a second lithium-containing transition metal oxide. The electrochemical device including the cathode material is significantly improved in the aspects of energy density, capacity attenuation and service life.Type: GrantFiled: March 31, 2020Date of Patent: March 19, 2024Assignee: NINGDE AMPEREX TECHNOLOGY LIMITEDInventors: Wenyuan Liu, Gang Peng, Ye Lang, Leimin Xu
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Publication number: 20240075039Abstract: Provided are an oral solid tablet comprising (S)-7-[4-(1-acryloylpiperidine)]-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide and preparation method therefor. The oral solid tablet has good drug release characteristics, features easy administration, quick and high-efficient release, no particular requirements on equipment, and a simple formulation preparation process, can ensure formulation stability and facilitate transportation and storage, and is suitable for large-scale production.Type: ApplicationFiled: November 13, 2023Publication date: March 7, 2024Inventors: Gang QIU, Yiwei SHEN, Wenyuan FAN, Shuo XU, Huiru LV, Jialin BIAN, Zhengming DU
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Patent number: 11919040Abstract: A control device for reducing and homogenizing welding residual stress by acoustic waves, comprising: a fixing tool having two rows of through holes; a plurality of ultrasonic transducers each having a body and a conical horn transmitting portion at a lower end of the body, wherein lower ends of the horn transmitting portions are fixedly connected with flanges, the horn transmitting portions of the ultrasonic transducers extend into respective through holes of the fixing tool to be in contact with welded parts below the fixing tool, the flanges are fixed to the fixing tool by bolts, and the two rows of through holes are arranged both sides of a welding seam of the welded parts; and a driving device for driving the ultrasonic transducers to operate. A corresponding control method is also provided. The control device can be used to control residual stress at the welding seam of steels.Type: GrantFiled: June 30, 2021Date of Patent: March 5, 2024Assignee: BEIJING INSTITUTE OF TECHNOLOGYInventors: Chunguang Xu, Peng Yin, Yuren Lu, Shuangyi Li, Wenyuan Song
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Publication number: 20230350746Abstract: The present invention relates to the technical field of central processing units (CPUs), and in particular to a fault-tolerant system with multi-core CPUs capable of being dynamically configured. The multi-core CPUs are three reconfigurable CPUs, the fault-tolerant system with multi-core CPUs is statically configured to be in a normal fault-tolerant mode, a reliable fault-tolerant mode or a performance mode by means of configuration of the three CPUs and then is switched between the normal fault-tolerant mode, the reliable fault-tolerant mode and the performance mode according to a mode switching command of a mode switching register, and finally, the three CPUs are correspondingly configured according to the mode to be switched.Type: ApplicationFiled: July 3, 2023Publication date: November 2, 2023Applicant: ZHEJIANG UNIVERSITYInventors: Kai HUANG, Siheng CHEN, Xiaowen JIANG, Xiaoxu ZHANG, Zhili LIU, Wenyuan XU, Yonggang PENG
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Publication number: 20230063548Abstract: A cross-chain transaction method based on hash locking and a sidechain technology is provided. The cross-chain transaction method comprises the following steps: establishing a hash-locking-based atomic exchange data transmission mechanism for a first terminal and a second terminal; establishing a cross-chain data transfer mechanism based on an SPV pegging mode; and realizing, by the first terminal and the second terminal, a hash-locking-based atomic exchange data transmission under a supervision state of the SPV pegging mode. The cross-chain transaction method, by utilizing the sidechain technology, solves the defect of the hash locking technology that only asset exchange can be realized but asset transfer cannot be realized, and thus the cross-chain asset transfer can be realized by utilizing the hash locking technology without additionally adding a sidechain or a relay chain.Type: ApplicationFiled: July 4, 2022Publication date: March 2, 2023Applicant: ZHEJIANG UNIVERSITYInventors: Yanjiao CHEN, Wenyuan XU, Yuyang RAN
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Publication number: 20220393893Abstract: A covert channel construction method in a blockchain network includes: sharing, by a first terminal and a second terminal, a secret key and transaction information, and generating a blockchain network address by using the secret key and a standard public key address generation algorithm, wherein the transaction information comprises a permutation mapping table and an information capacity of a single transaction; sending, by the first terminal, information by using an information hiding method, and performing simultaneously, by the first terminal and the second terminal, transaction recording; and monitoring, by the first terminal and the second terminal, whether an account transaction of the blockchain network address exists in a blockchain, if yes, extracting, by the second terminal, the information by using an information extraction method, and after extracting the information, replying to the information by using the information hiding method, thereby enabling communication parties to safely transmit inforType: ApplicationFiled: June 2, 2022Publication date: December 8, 2022Applicant: ZHEJIANG UNIVERSITYInventors: Yanjiao CHEN, Wenyuan XU, Xu WANG
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Patent number: 11509489Abstract: A covert channel construction method in a blockchain network includes: sharing, by a first terminal and a second terminal, a secret key and transaction information, and generating a blockchain network address by using the secret key and a standard public key address generation algorithm, wherein the transaction information comprises a permutation mapping table and an information capacity of a single transaction; sending, by the first terminal, information by using an information hiding method, and performing simultaneously, by the first terminal and the second terminal, transaction recording; and monitoring, by the first terminal and the second terminal, whether an account transaction of the blockchain network address exists in a blockchain, if yes, extracting, by the second terminal, the information by using an information extraction method, and after extracting the information, replying to the information by using the information hiding method, thereby enabling communication parties to safely transmit inforType: GrantFiled: June 2, 2022Date of Patent: November 22, 2022Assignee: ZHEJIANG UNIVERSITYInventors: Yanjiao Chen, Wenyuan Xu, Xu Wang
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Patent number: 11450324Abstract: The present disclosure discloses a machine learning-based method for defending a voice assistant from being controlled by an inaudible command, including following steps: 1) collecting data of positive and negative samples, 2) performing data segmentation on data of the positive and negative samples; 3) selecting and normalizing sample features; 4) selecting a classifier to be trained and generate a detection model for a malicious voice command; 5) detecting a voice command to be detected by the detection model. The present disclosure selects an original feature selection method, and for smart devices of different types, it is necessary to obtain normal voice commands and malicious voice commands by means of a smart device of this type, and use them as the positive and negative samples to train a specific classifier for the device. Such a customized approach can well solve a problem that detection and defense between devices cannot work.Type: GrantFiled: April 21, 2020Date of Patent: September 20, 2022Assignee: ZHEJIANG UNIVERSITYInventors: Wenyuan Xu, Xiaoyu Ji, Guoming Zhang, Chen Yan, Tianchen Zhang, Taimin Zhang
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Publication number: 20220215652Abstract: The disclosure discloses a method and a system for generating image adversarial examples based on an acoustic wave. The method includes: acquiring an image containing a target object or a target scene; generating simulated image examples for the acquired image, wherein the simulated image examples have adversarial effects on a deep learning algorithm in a target machine vision system; optimizing the generated simulated image examples to obtain an optimal adversarial example and corresponding adversarial parameters; and injecting the adversarial parameters into an inertial sensor of the target machine vision system in a manner of an acoustic wave, such that the adversarial parameters are used as sensor readings that will cause an image stabilization module in the target machine vision system to operate to generate particular blurry patterns in a generated real-world image so as to generate an image adversarial example in a physical world.Type: ApplicationFiled: March 23, 2022Publication date: July 7, 2022Inventors: Xiaoyu JI, Wenyuan XU, Yushi CHENG, Yuepeng ZHANG, Kai WANG, Chen YAN
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Publication number: 20200251117Abstract: The present disclosure discloses a machine learning-based method for defending a voice assistant from being controlled by an inaudible command, including following steps: 1) collecting data of positive and negative samples, 2) performing data segmentation on data of the positive and negative samples; 3) selecting and normalizing sample features; 4) selecting a classifier to be trained and generate a detection model for a malicious voice command; 5) detecting a voice command to be detected by the detection model. The present disclosure selects an original feature selection method, and for smart devices of different types, it is necessary to obtain normal voice commands and malicious voice commands by means of a smart device of this type, and use them as the positive and negative samples to train a specific classifier for the device. Such a customized approach can well solve a problem that detection and defense between devices cannot work.Type: ApplicationFiled: April 21, 2020Publication date: August 6, 2020Inventors: Wenyuan XU, Xiaoyu JI, Guoming ZHANG, Chen YAN, Tianchen ZHANG, Taimin ZHANG
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Patent number: 7957000Abstract: Systems and methods for calibrating a web inspection system.Type: GrantFiled: May 25, 2010Date of Patent: June 7, 2011Assignee: 3M Innovative Properties CompanyInventors: David L. Hofeldt, Derek H. Justice, John A. Ramthun, Catherine P. Tarnowski, Wenyuan Xu
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Publication number: 20100231897Abstract: Systems and methods for calibrating a web inspection system.Type: ApplicationFiled: May 25, 2010Publication date: September 16, 2010Inventors: David L. HOFELDT, Derek H. Justice, John A. Ramthun, Catherine P. Tarnowski, Wenyuan Xu
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Patent number: 7773226Abstract: Systems and methods for calibrating a web inspection system.Type: GrantFiled: June 5, 2008Date of Patent: August 10, 2010Assignee: 3M Innovative Properties CompanyInventors: David L. Hofeldt, Derek H. Justice, John A. Ramthun, Catherine P. Tarnowski, Wenyuan Xu
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Patent number: 7677101Abstract: Techniques are described for estimating the propagation velocity through a surface acoustic wave sensor. In particular, techniques which measure and exploit a proper segment of phase frequency response of the surface acoustic wave sensor are described for use as a basis of bacterial detection by the sensor. As described, use of velocity estimation based on a proper segment of phase frequency response has advantages over conventional techniques that use phase shift as the basis for detection.Type: GrantFiled: December 17, 2004Date of Patent: March 16, 2010Assignee: 3M Innovative Properties CompanyInventors: Wenyuan Xu, John S. Huizinga
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Publication number: 20090303484Abstract: Systems and methods for calibrating a web inspection system.Type: ApplicationFiled: June 5, 2008Publication date: December 10, 2009Inventors: David L. HOFELDT, Derek H. Justice, John A. Ramthun, Catherine P. Tarnowski, Wenyuan Xu
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Publication number: 20070068256Abstract: Techniques are described for estimating the propagation velocity through a surface acoustic wave sensor. In particular, techniques which measure and exploit a proper segment of phase frequency response of the surface acoustic wave sensor are described for use as a basis of bacterial detection by the sensor. As described, use of velocity estimation based on a proper segment of phase frequency response has advantages over conventional techniques that use phase shift as the basis for detection.Type: ApplicationFiled: December 17, 2004Publication date: March 29, 2007Inventors: Wenyuan Xu, John Huizinga
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Patent number: 6950547Abstract: An imaging device for sequentially imaging a portion of a continuously moving web to provide a digital data stream which is then analyzed by a single computer without the used of dedicated signal processing hardware. Techniques for operating on the data stream from an imaging device are disclosed, particularly including operations based on blob information stored in terms of starting position and segment run lengths in a crossweb direction. These allow definitions of blobs to be accumulated in a line-by-line fashion, and allow classes of defects commonly found in continuous web manufacturing to be identified with far less computing power than was previously required. In particular, in the challenging application of inspecting flexible circuits, data rates in excess of 10 mega-pixels/second are achieved and successfully processed.Type: GrantFiled: February 12, 2001Date of Patent: September 27, 2005Assignee: 3M Innovative Properties CompanyInventors: Steven P. Floeder, James A. Masterman, Matthew P. Peick, Carl J. Skeps, Steven R. Wageman, Wenyuan Xu, Xi Yu
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Publication number: 20020110269Abstract: An imaging device for sequentially imaging a portion of a continuously moving web to provide a digital data stream which is then analyzed by a single computer without the used of dedicated signal processing hardware. Techniques for operating on the data stream from an imaging device are disclosed, particularly including operations based on blob information stored in terms of starting position and segment run lengths in a crossweb direction. These allow definitions of blobs to be accumulated in a line-by-line fashion, and allow classes of defects commonly found in continuous web manufacturing to be identified with far less computing power than was previously required. In particular, in the challenging application of inspecting flexible circuits, data rates in excess of 10 mega-pixels/second are achieved and successfully processed.Type: ApplicationFiled: February 12, 2001Publication date: August 15, 2002Applicant: 3M Innovative Properties CompanyInventors: Steven P. Floeder, James A. Masterman, Matthew P. Peick, Carl J. Skeps, Steven R. Wageman, Wenyuan Xu, Xin Yu