Patents by Inventor Yufeng Guo

Yufeng Guo 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).

  • Publication number: 20230030020
    Abstract: A video motion estimation method including obtaining a plurality of image frames in a video, and performing scenario classification processing on the plurality of image frames to obtain a plurality of image frame sets. The method further includes extracting a contour feature and a color feature of a foreground object of each image frame, and determining a search range corresponding to each image frame set. The method further includes determining a starting search point in each predicted frame. The method further includes, for each image frame set, performing motion estimation processing in a search region corresponding to the search range of each predicted frame set based on the starting search point of the respective predicted frame, a reference block in at least one reference frame of the respective image frame set, and the color feature of the foreground object, to obtain a motion vector corresponding to the reference block.
    Type: Application
    Filed: October 11, 2022
    Publication date: February 2, 2023
    Applicant: Tencent Technology (Shenzhen) Company Limited
    Inventors: Yufeng LI, Wei GUO
  • Publication number: 20230009150
    Abstract: This application relates to a circuit board assembly. The circuit board assembly includes: a first circuit board. The first circuit board is connected to a connector; and a second circuit board. A first connecting portion is disposed on the second circuit board. The first connecting portion is electrically connected to the connector. The second circuit board includes a top surface and a side surface. The top surface intersects and is perpendicular to the side surface. The first connecting portion is disposed on the top surface, and extends towards the side surface. In this disclosure, the top surface intersects and is perpendicular to the side surface, to improve stability of connection between the connector and the first connecting portion, and improve working stability of the second circuit board, so as to improve working performance of the circuit board assembly and improve user experience.
    Type: Application
    Filed: July 6, 2022
    Publication date: January 12, 2023
    Inventors: Gang CHEN, Yufeng ZHENG, Zhe LI, Zhigang GUO, Xiaoliu ZHANG
  • Publication number: 20220414183
    Abstract: The present disclosure provides a winograd convolution operation method, a winograd convolution operation apparatus, a device, and a storage medium. The apparatus includes: processors and a memory, where the memory is configured to store a program code, and the processors are configured to call the program code stored in the memory and execute the operation method. Through the operation method, a system, the device and the storage medium of the present disclosure, performance loss of a computer system may be reduced, and operation speed may be improved. Through the present disclosure, processing efficiency may be improved.
    Type: Application
    Filed: September 3, 2020
    Publication date: December 29, 2022
    Inventors: Yingnan ZHANG, Hongbo ZENG, Yao ZHANG, Shaoli LIU, Di HUANG, Shiyi ZHOU, Xishan ZHANG, Chang LIU, Jiaming GUO, Yufeng GAO
  • Publication number: 20220405349
    Abstract: This disclosure relates to a data processing method, a data processing apparatus, and related products. The products include a control unit. The control unit includes: an instruction caching unit, an instruction processing unit, and a storage queue unit. The instruction caching unit is used for storing a calculation instruction associated with an artificial neural network computation; the instruction processing unit is used for parsing the calculation instruction to obtain a plurality of computation instructions; and the storage queue unit is used for storing an instruction queue, where the instruction queue includes the plurality of computation instructions or calculation instructions to be executed according to a front-back sequence of a queue. Through the above method of this disclosure, computation efficiency of the related products during a neural network model computation may be improved.
    Type: Application
    Filed: October 27, 2020
    Publication date: December 22, 2022
    Inventors: Yingnan ZHANG, Hongbo ZENG, Yao ZHANG, Shaoli LIU, Di HUANG, Shiyi ZHOU, Xishan ZHANG, Chang LIU, Jiaming GUO, Yufeng GAO
  • Patent number: 11520934
    Abstract: A method for preventing a differential cryptanalysis attack is provided. The method is implemented by an adaptive scan chain, a control module, and a plaintext analysis module. The plaintext analysis module controls the adaptive scan chain, so that two plaintexts differing in the last bit of only one byte are input through scan chains with different structures. Consequently, the two input plaintexts for which differential cryptanalysis attack technology originally can be used to crack the key are unable to generate outputs that can be used by the differential cryptanalysis attack technology.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: December 6, 2022
    Assignees: Nanjing University Of Posts And Telecommunications, NANTONG INSTITUTE OF NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS CO., LTD.
    Inventors: Zhikuang Cai, Xun Xu, Ming Wang, Zixuan Wang, Henglu Wang, Jingqi Yao, Jiafei Yao, Yufeng Guo
  • Publication number: 20220300662
    Abstract: A method for preventing a differential cryptanalysis attack is provided. The method is implemented by an adaptive scan chain, a control module, and a plaintext analysis module. The plaintext analysis module controls the adaptive scan chain, so that two plaintexts differing in the last bit of only one byte are input through scan chains with different structures. Consequently, the two input plaintexts for which differential cryptanalysis attack technology originally can be used to crack the key are unable to generate outputs that can be used by the differential cryptanalysis attack technology.
    Type: Application
    Filed: March 12, 2021
    Publication date: September 22, 2022
    Applicants: Nanjing University Of Posts And Telecommunications, NANTONG INSTITUTE OF NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS CO.,LTD.
    Inventors: Zhikuang CAI, Xun XU, Ming WANG, Zixuan WANG, Henglu WANG, Jingqi YAO, Jiafei YAO, Yufeng GUO
  • Patent number: 11361334
    Abstract: A server receives article information of an article to be estimated from a user. The server obtains an actual picture of the article from the user. The server determines a standard picture of the article from a predetermined graphics library based on the article information. The server obtains an actual performance of the article. The server determines a value of the article based on the standard picture, the actual picture, and the actual performance of the article.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: June 14, 2022
    Assignee: Advanced New Technologies Co., Ltd.
    Inventors: Yufeng Guo, Bin Wang, Yahui Liu
  • Publication number: 20220139705
    Abstract: A method of forming an oxide layer includes: providing a substrate; forming an oxide film structure: introducing hydrogen into a reaction environment, introducing oxygen, and forming the oxide film structure on a surface of the substrate; performing annealing treatment: introducing compensation gas into the reaction environment, and performing pulse annealing treatment on the oxide film structure to form an oxide layer film; and repeating at least two cycles including the above steps to form at least two oxide layer films stacked on the surface of the substrate so as to form the oxide layer.
    Type: Application
    Filed: January 19, 2022
    Publication date: May 5, 2022
    Applicant: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventor: Yufeng GUO
  • Patent number: 11309871
    Abstract: A narrow pulse generation circuit used in a sequential equivalent sampling system. The circuit comprises a crystal oscillator, an edge sharpening circuit, an avalanche transistor single-tube amplifying circuit and a shaping network connected in sequence, wherein the edge sharpening circuit is used for carrying out edge sharpening on a square wave signal generated by the crystal oscillator; the avalanche transistor single-tube amplifying circuit is used for carrying out avalanche amplification on the sharpened square wave signal to generate a Gaussian pulse signal to adjust the amplitude of a pulse; and the RC shaping network is used for shaping the Gaussian pulse signal to adjust the pulse width at the bottom of the pulse to form a narrow pulse signal. The narrow pulse circuit has a simple structure and narrow pulse width at the bottom and facilitates increasing a signal-to-noise ratio of a whole sequential sampling system.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: April 19, 2022
    Assignee: Nantong Institute of Nanjing University of Posts and Telecommunications Co., Ltd.
    Inventors: Zhikuang Cai, Xuanchen Qi, Wenhua Lin, Guowei Shi, Jian Xiao, Yufeng Guo
  • Publication number: 20210364627
    Abstract: An ultra-wideband ground penetrating radar control system, comprising a synchronous clock generating circuit, a GPS positioning module, a measuring wheel encoder module, a digitally controlled delay circuit for equivalent sampling, an analog-to-digital conversion (ADC) circuit, and a main controller. The synchronous clock generating circuit, the GPS positioning module, the measuring wheel encoder module, the digitally controlled delay circuit and the ADC circuit are all connected to the main controller. The synchronous clock generating circuit is further connected to an external ultra-wideband radar transmitter. The digitally controlled delay circuit is further connected to an external sampling pulse generation circuit for equivalent sampling. The ADC circuit is further connected to an external sampling gate for equivalent sampling. The main controller is further connected to an external server via Ethernet. The volume of an ultra-wideband ground penetrating radar control system is reduced.
    Type: Application
    Filed: January 14, 2019
    Publication date: November 25, 2021
    Applicant: Nantong Institute of Nanjing University of Posts and Telecommunications Co.,Ltd.
    Inventors: Zhikuang CAI, Xuanchen QI, Wenhua LIN, Ji WANG, Jian XIAO, Yufeng GUO
  • Publication number: 20210359668
    Abstract: A narrow pulse generation circuit used in a sequential equivalent sampling system. The circuit comprises a crystal oscillator, an edge sharpening circuit, an avalanche transistor single-tube amplifying circuit and a shaping network connected in sequence, wherein the edge sharpening circuit is used for carrying out edge sharpening on a square wave signal generated by the crystal oscillator; the avalanche transistor single-tube amplifying circuit is used for carrying out avalanche amplification on the sharpened square wave signal to generate a Gaussian pulse signal to adjust the amplitude of a pulse; and the RC shaping network is used for shaping the Gaussian pulse signal to adjust the pulse width at the bottom of the pulse to form a narrow pulse signal. The narrow pulse circuit has a simple structure and narrow pulse width at the bottom and facilitates increasing a signal-to-noise ratio of a whole sequential sampling system.
    Type: Application
    Filed: January 14, 2019
    Publication date: November 18, 2021
    Applicant: Nantong Institute of Nanjing University of Posts and Telecommunications Co.,Ltd.
    Inventors: Zhikuang CAI, Xuanchen QI, Wenhua LIN, Guowei SHI, Jian XIAO, Yufeng GUO
  • Patent number: 10929717
    Abstract: The present specification provides an article damage detection method, including: obtaining at least two images that are time sequentially related and show a detected article at different angles; and inputting the images to a detection model in time order, to determine a damage detection result, where the detection model includes a first sub-model and a second sub-model, the first sub-model identifies respective features of each image, a feature processing result of each image is input to the second sub-model, the second sub-model performs time series analysis on the feature processing result to determine the damage detection result, and the first sub-model and the second sub-model are obtained by performing joint training by using training samples labeled with article damage.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: February 23, 2021
    Assignee: Advanced New Technologies Co., Ltd.
    Inventors: Yongchao Liu, Haitao Zhang, Yufeng Guo
  • Publication number: 20200293830
    Abstract: The present specification provides methods, apparatuses, and devices for detecting damages to an article. In one aspect, the method includes: obtaining at least two images that are time sequentially related and show the article at different angles; providing the at least two images as input to a detection model in time order, wherein the detection model comprises a first sub-model and a second sub-model that have been jointly trained on training samples associated with labels indicating respective article damage degrees; processing the at least two images using the first sub-model to determine a feature processing result based on respective features identified from each image; processing the feature processing result using the second sub-model to perform time series analysis on the feature processing result to determine a damage detection result; and obtaining, as output from the detection model, the damage detection result.
    Type: Application
    Filed: May 29, 2020
    Publication date: September 17, 2020
    Applicant: Alibaba Group Holding Limited
    Inventors: Yongchao Liu, Haitao Zhang, Yufeng Guo
  • Publication number: 20200211121
    Abstract: A credit-based claim settlement implementing method comprises receiving a claim settlement request from a user terminal of a user. In response to receiving the claim settlement request, the method further comprises: determining credit information of the user; when the credit information of the user satisfies a credit constraint condition, prompting the user to upload images of claim settlement materials from the user terminal; detecting, using a living body detection technology, whether uploading the images of claim settlement materials is performed by uploading a photograph taken in real time from the user terminal; in response to detecting that uploading the images of claim settlement materials is performed by uploading a photograph taken in real time from the user terminal, determining whether the claim settlement materials are authentic; and in response to determining that the claim settlement materials are authentic, determining a claim settlement amount based on the claim settlement materials.
    Type: Application
    Filed: March 2, 2020
    Publication date: July 2, 2020
    Inventors: Yufeng GUO, Bin WANG, Yahui LIU
  • Publication number: 20200090201
    Abstract: A server receives article information of an article to be estimated from a user. The server obtains an actual picture of the article from the user. The server determines a standard picture of the article from a predetermined graphics library based on the article information. The server obtains an actual performance of the article. The server determines a value of the article based on the standard picture, the actual picture, and the actual performance of the article.
    Type: Application
    Filed: November 21, 2019
    Publication date: March 19, 2020
    Applicant: Alibaba Group Holding Limited
    Inventors: Yufeng Guo, Bin Wang, Yahui Liu
  • Publication number: 20130167848
    Abstract: A heel protection method and device for the protection of heel ulcers includes an inflatable bladder adapted to be positioned adjacent a calf of a patient and a sensor adapted to be positioned adjacent a heel of the patient for detecting pressure at the heel. A microprocessor is adapted to receive a signal related to pressure at the heel, from which it determines whether an allowable level has been exceeded. If an excessive pressure level is sensed, the microprocessor transmits a signal to a separate device that alerts the caregiver to inflate the inflatable bladder or automatically by way of a pump operatively connected to the microprocessor. The method and device avoids excessive pressure at the heel by sensing the pressure at the heel, and redistributing the pressure from the heel to the calf if an allowable pressure level has been exceeded.
    Type: Application
    Filed: April 27, 2011
    Publication date: July 4, 2013
    Applicant: THE JOHNS HOPKINS UNIVERSITY
    Inventors: Frank John Frassica, Baris Sevinc, Jinjie Chen, Adam Christopher Diehl, Yufeng Guo, Steve Shuo Wang, Benjamin William Neese, Stefan Ahldor Kowalski