Patents by Inventor Xu Fang

Xu Fang 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).

  • Patent number: 12002352
    Abstract: A mapping method for right-turn conflict warning lines at urban road intersections includes: obtaining the conflict data of urban intersections and the driving trajectory information of large vehicles and obtaining the outermost rear wheel trajectory curve and the innermost rear wheel trajectory curve through the driving trajectory information of large vehicles; using the regression model to construct the dynamic model of the right-turn conflict area of large vehicles and obtain the relationship between the parameters of the outermost rear wheel trajectory curve and the innermost rear wheel trajectory curve and the dynamic and static indexes; inputting the dynamic and static indexes of other road intersections into the dynamic model of the right-turn conflict area of large vehicles to obtain the corresponding outermost rear wheel trajectory curve and the innermost rear wheel trajectory curve, and drawing the urban road warning line.
    Type: Grant
    Filed: June 27, 2023
    Date of Patent: June 4, 2024
    Inventors: Zhongxiang Feng, Yubing Zheng, Congjun Huang, Xu Jiang, Shisheng Fang, Zongzu Liu, Yinbin Shen, Hui Sun, Junxia Wang, Weihua Zhang, Kang Jiang
  • Publication number: 20240175839
    Abstract: Defect detection method for a semi-conducting bedding layer of a power cable includes: obtaining a length parameter, a corrugation pitch parameter, radius parameters, and a thickness parameter of a power cable; obtaining a first resistance value between a shield and a corrugated sheath, and calculating a second resistance value of the shield based on the length parameter and the corrugation pitch parameter; calculating a radial resistance value of the semi-conducting bedding layer based on the first resistance value and the second resistance value; determining a contact angle of a critical point of contact between the corrugated sheath and the semi-conducting bedding layer based on the radius parameters and the thickness parameter; calculating volume resistivity of the semi-conducting bedding layer based on the radial resistance value and the contact angle; and comparing the volume resistivity with a preset evaluation parameter to obtain a defect detection result of the semi-conducting bedding layer.
    Type: Application
    Filed: January 21, 2022
    Publication date: May 30, 2024
    Inventors: Shengchen Fang, Pengxian Song, Xu Li, Yang Yu, Mingzheng Zhu, Zhengzheng Meng, Fengzheng Zhou, Xiaohui Zhu, Lei Yang, Jun Zhang, Chun He, Nan Wang, Ke Xu, Qinghua Tang, Chi Zhang, Haoming Wang, Longji Li, Cheng Sun, Wei Fan
  • Patent number: 11988055
    Abstract: A controllable downhole drilling and completion tool separating device and their method of use are provided. The device includes an upper mandrel connector, an outer sleeve, a claw clamp sleeve, a claw clamp locking ring, a mandrel sleeve, a lower connector, a piston ring and a pressure bearing ball. The upper end of the lower connector is on the outer side of the upper connector in a sleeving mode. A first annular cavity is between the lower connector and the upper connector. The piston ring is on the outer side of the upper connector in a sleeving mode and located in the first annular cavity. The claw clamp sleeve and the outer sleeve are sequentially arranged on the outer side of the upper connector in a sleeving mode. A second annular cavity is communicated with the first annular cavity and formed between the claw clamp sleeve and the upper connector.
    Type: Grant
    Filed: January 3, 2023
    Date of Patent: May 21, 2024
    Assignee: SOUTHWEST PETROLEUM UNIVERSITY
    Inventors: Gao Li, Pan Fang, Dong Xiao, Hongtao Li, Xu Yang, Yongjie Li, Yangyang Xu, Guo Liu
  • Patent number: 11966587
    Abstract: A method for optimizing a Polar-RNNA quantizer of MLC NAND flash based on deep learning comprises the following steps: Step S1: transforming an MLC flash detection task into a deep learning task, and obtaining three hard-decision read thresholds based on a neural network; Step S2: expanding six soft-decision read thresholds based on the three hard-decision read thresholds; Step S3: constructing an LLR mapping table, and obtaining new LLR information of MLC flash based on the LLR mapping table; Step S4: symmetrizing an MLC flash channel, and performing density evolution; and Step S5: optimizing the soft-decision read thresholds based on a genetic algorithm to obtain an optimal quantization interval. According to the invention, polar codes can be directly used for MLC flash channels without the arduous work of MLC flash channel modeling, so that the reliability of MLC flash is effectively improved.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: April 23, 2024
    Assignee: FUZHOU UNIVERSITY
    Inventors: Pingping Chen, Zhen Mei, Yi Fang, Xu Luo, Zhijian Lin, Feng Chen, Riqing Chen
  • Publication number: 20240092292
    Abstract: The concepts include a user support system in the form of a microphone, a visual display arranged in a vehicle cabin, and a controller. The controller includes an instruction set that is executable to receive, via the microphone, a voice-based request from a user, and employ a virtual assistant to determine a user interaction in real time and to determine a specific intent for the voice-based request, including capturing metadata. A user interaction routine determines a user interaction parameter associated with the virtual assistant based upon the voice-based request from the user. A user sentiment analysis routine determines a user satisfaction parameter associated with the virtual assistant based upon the voice-based request from the user. The controller responds in real-time to the voice-based request based upon the user satisfaction parameter and the user interaction parameter that are associated with the virtual assistant.
    Type: Application
    Filed: September 16, 2022
    Publication date: March 21, 2024
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Gaurav Talwar, Alaa M. Khamis, Xu Fang Zhao, Kenneth R. Booker
  • Publication number: 20240088801
    Abstract: A fractal power converter and a method for constructing the fractal power converter, the method for constructing the fractal converter including: replacing a switch and/or an energy storage element of an asymmetric half-bridge sub-module with the same asymmetric half-bridge sub-module for at least two times, replacing a switch and/or an energy storage element of a symmetric half-bridge sub-module with the same symmetric half-bridge sub-module for at least two times, and replacing a switch and/or an energy storage element of an H-bridge sub-module with the same H-bridge sub-module for at least two times. Compared with a conventional high-voltage and large-current power converter, the fractal power converter may output any high-voltage and large-current waveform. The system is modularized, the structure is simple and extensible, and voltage and current may be evenly distributed among the modules. The control method is simple and easy to standardize. Multi-port parallel output is allowed.
    Type: Application
    Filed: January 17, 2023
    Publication date: March 14, 2024
    Applicant: SHANDONG UNIVERSITY
    Inventors: Jingyang FANG, Hongchang LI, Feng GAO, Xu YANG
  • Publication number: 20240089528
    Abstract: A page display method and apparatus for an application, and an electronic device are provided. The method includes: receiving a play instruction for multimedia content in the application; and in response to the play instruction, in the case that the multimedia content belongs to a preview stream of an online live broadcast, playing the multimedia content and displaying real-time information of the online live broadcast. The real-time information of the online live broadcast includes at least one of a live broadcast commentary or a live broadcast explanation.
    Type: Application
    Filed: November 15, 2023
    Publication date: March 14, 2024
    Inventors: Mengying FANG, Xu LIU, Wenjing LIU, Xuyuan XIANG, Can YANG, Haiqian WANG
  • Publication number: 20240059252
    Abstract: An automatic rain response system includes microphones of a vehicle, windshield wipers, and a controller. The microphones generate acoustic signals in response to rain. The controller is configured to receive a local weather condition, extract acoustic features from the acoustic signals, form feature vectors in response to the acoustic features and the local weather condition, classify the feature vectors to determine a current class among multiple classes, activate the windshield the wipers at a high speed in response to the current class being a heavy rain on a windshield class, activate the windshield wipers at a medium speed in response to the current class being a freezing rain on the windshield class, activate the windshield wipers at a low speed in response to the current class being a light rain on the windshield class, and deactivate the windshield wipers in response to the current class being a no rain class.
    Type: Application
    Filed: August 20, 2022
    Publication date: February 22, 2024
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Alaa M. Khamis, Kenneth R. Booker, Gaurav Talwar, Xu Fang Zhao
  • Publication number: 20240013776
    Abstract: A system for scenario context-aware voice assistant auto-activation is provided. The system includes a microphone configured for providing data related to a word or a phrase spoken by a user, an operational device, and a computerized scenario context-aware voice assistant controller. The controller includes programming to recognize the word or the phrase within the data and identify a scenario context of the word or the phrase. The controller further includes programming to utilize the scenario context to associate the word or the phrase with a scenario context feature trigger configured for indicating a desired command of the user and command the operational device based upon the scenario context feature trigger associated with the word or the phrase.
    Type: Application
    Filed: July 11, 2022
    Publication date: January 11, 2024
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Xu Fang Zhao, Alaa M. Khamis, Gaurav Talwar, Kenneth R. Booker
  • Publication number: 20230272104
    Abstract: The present disclosure provides single domain antibodies that bind to CD20, and chimeric antigen receptors comprising same. Further provided are engineered immune effector cells (such as T cells) comprising the chimeric antigen receptors. Pharmaceutical compositions, kits and methods of treating a disease or disorder are also provided.
    Type: Application
    Filed: July 16, 2021
    Publication date: August 31, 2023
    Inventors: Xiaohu Fan, Zhe Zhou, Qiuchuan ZHUANG, Xu Fang, Hongbo PAN, Min Wei, Jianrui ZHU
  • Publication number: 20230250184
    Abstract: The present disclosure provides single domain antibodies that bind to CD22, and chimeric antigen receptors comprising same. Further provided are engineered immune effector cells (such as T cells) comprising the chimeric antigen receptors. Pharmaceutical compositions, kits and methods of treating a disease or disorder are also provided.
    Type: Application
    Filed: July 16, 2021
    Publication date: August 10, 2023
    Inventors: Xiaohu Fan, Zhe Zhou, Qiuchuan ZHUANG, Xu Fang, Yue HAN, Youguo PENG, Hefei HOU
  • Publication number: 20230192841
    Abstract: Single domain antibodies that bind to Claudin18.2, and chimeric antigen receptors comprising same are provided. Further provided are engineered immune effector cells (such as T cells) comprising the chimeric antigen receptors. Pharmaceutical compositions, kits and methods of treating a disease or disorder are also provided.
    Type: Application
    Filed: December 24, 2020
    Publication date: June 22, 2023
    Applicant: NANJING LEGEND BIOTECH CO., LTD.
    Inventors: Xiaohu FAN, Qiuchuan ZHUANG, Xu FANG, Qingshan ZHANG, Manman XU, Meng FENG
  • Publication number: 20230192883
    Abstract: The present disclosure provides single domain antibodies that bind to CD19, and chimeric antigen receptors comprising same. Further provided are engineered immune effector cells (such as T cells) comprising the chimeric antigen receptors. Pharmaceutical compositions, kits and methods of treating a disease or disorder are also provided.
    Type: Application
    Filed: July 16, 2021
    Publication date: June 22, 2023
    Inventors: Xiaohu Fan, Zhe Zhou, Qiuchuan ZHUANG, Xu Fang, Yue HAN, Youguo PENG, Manman LU
  • Publication number: 20230130201
    Abstract: A motor vehicle includes a body defining a passenger compartment and having opposing driver and passenger sides. The vehicle includes driver and passenger side mirrors. The driver side mirror has a sweep angle (?) and an elevation angle (?). The passenger side mirror has a sweep angle (?). The side mirrors are separated from each other by a distance (D). An adjustable driver seat has a height (H). An electronic controller, in response to position signals inclusive of angles (?), (?), and (?), the distance (D), and the height (H), calculates a three-dimensional (3D) driver head position of a driver of the vehicle, and thereafter uses the 3D driver head position to improve performance of a driver assist system device. Functions of the controller may be implemented as a method or recorded on a computer readable medium for execution by a processor.
    Type: Application
    Filed: October 26, 2021
    Publication date: April 27, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Xu Fang Zhao, Gaurav Talwar, Alaa M. Khamis
  • Patent number: 11634720
    Abstract: The technical field of preparation of organic compounds, and particularly to yeasts producing tyrosol or hydroxytyrosol and construction methods thereof. PcAAS and ADH-encoding DNA sequences are introduced into the yeast strain BY4741, to obtain a PcAAS-ADH recombinant yeast producing tyrosol. A PDC1 knockout cassette and a TyrA expression cassette are introduced into the PcAAS-ADH recombinant yeast to obtain a PcAAS-ADH-?PDC1-TyrA recombinant yeast producing tyrosol. A HpaBC encoding DNA sequence is introduced into the PcAAS-ADH-?PDC1-TyrA recombinant yeast, to obtain a PcAAS-ADH-HpaBC-?PDC1-TyrA recombinant yeast producing hydroxytyrosol. The construction of a tyrosol or hydroxytyrosol biosynthesis pathway in the yeast strain BY4741 enhances the production of tyrosol or hydroxytyrosol.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: April 25, 2023
    Assignee: SHANDONG HENGLU BIOTECH. CO., LTD.
    Inventors: Xu Fang, Wei Guo, Lijuan Han
  • Publication number: 20230058669
    Abstract: A chimeric antigen receptor (CAR) comprising a polypeptide comprising an extracellular antigen binding domain comprising a first BCMA binding moiety and a second BCMA binding moiety, wherein the first BCMA binding moiety is a first anti-BCMA single domain antibody, and the second BCMA binding moiety is a second anti-BCMA sdAb; and wherein each of the first and second sdAb is a VHH domain.
    Type: Application
    Filed: December 15, 2020
    Publication date: February 23, 2023
    Applicant: NANJING LEGEND BIOTECH CO., LTD.
    Inventors: Xiaohu FAN, Qiuchuan ZHUANG, Yuncheng ZHAO, Lei YANG, Xu FANG, Changmeng XU
  • Patent number: 11507346
    Abstract: A method for text feedback includes: receiving, by a controller, an utterance from a user; determining, by an automatic speech recognition engine of the controller, a plurality of speech recognition results based on the utterance from the user, wherein the speech recognition results include probable commands; determining, by the automatic speech recognition engine of the controller, a plurality of confidence scores for each of the plurality of speech recognition results; determining, by the controller, a text characteristic for each of the plurality of probable commands as a function of the confidence scores for each of the plurality of speech recognition results; and commanding, by the controller, a display to show text corresponding to each of the plurality of probable commands with the text characteristic determined by the controller.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: November 22, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Xu Fang Zhao, Gaurav Talwar, Alaa M. Khamis
  • Publication number: 20220355355
    Abstract: A method for producing a stainless steel foil comprises the following steps: rolling a raw material steel coil in an intermediate rolling process comprising three rolling processes; rolling the finished product in the rolling process; annealing and straightening the finished product. The application also provides a stainless steel foil prepared by the method. The method can solve the defect that the high strength and high plasticity of the ultra-thin stainless steel foil are difficult to meet at the same time.
    Type: Application
    Filed: July 9, 2021
    Publication date: November 10, 2022
    Applicant: SHANXI TAIGANG STAINLESS STEEL PRECISION STRIP CO., LTD
    Inventors: Tianxiang WANG, Xi LIAO, Haojie DUAN, Xianbing WU, Xiaoquan HAN, Yongshun ZHAO, Huiwen WANG, Xiangyu WANG, Xiaodong LIU, Xing YANG, Xu FANG
  • Publication number: 20220275192
    Abstract: Disclosed in the present invention are a polyvinyl alcohol (PVA)-based degradable plastic, a preparation method therefor and application thereof, and a recycling method therefor. The preparation method comprises the following steps: a PVA solution is subjected to a chemical grafting reaction under an acidic condition under the action of a modifier; there are a phenyl group, an aldehyde group, and at least one group capable of forming a hydrogen bond with PVA in a structural formula of the modifier. The polyvinyl alcohol-based degradable plastic provided in the present invention has the advantages of being high in transparency, high in mechanical strength, not affected by environmental humidity, easy to degrade, good in thermal stability and good in biocompatibility, and has the advantages of recyclability, low costs, easy large-scale preparation and the like.
    Type: Application
    Filed: August 27, 2020
    Publication date: September 1, 2022
    Inventors: Junqi Sun, Xu Fang, Yixuan Li
  • Publication number: 20220243239
    Abstract: A method for synthesizing lacto-N-biose and belongs to the technical field of bioengineering and oligosaccharide synthesis. A multi-enzyme catalytic system with good biological safety and wide application, and an ATP regeneration cycle system is introduced into a multi-enzyme reaction system, so that the synthesis of lacto-N-biose and the utilization rate of substrates are improved. A novel lacto-N-biose synthetic route lays a foundation for large-scale industrial production of lacto-N-biose and has important economic values and social benefits. At the same time, the synthetic method is efficient, mild, simple, easy to operate, low in cost and suitable for industrial production, and has a high practical application value.
    Type: Application
    Filed: April 3, 2020
    Publication date: August 4, 2022
    Applicant: SHANDONG HENGLU BIOTECH CO., LTD.
    Inventors: Xu FANG, Zhiqiang DU