Patents by Inventor Xiaoqin Wang

Xiaoqin Wang 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: 20240152716
    Abstract: The present application provides an optical information collector and a method thereof. The optical information collector includes an image sensor, configured to collect image data of optical information; a decoding unit, configured to decode the image data based on a preset decoding algorithm; a central processor, configured to control the image sensor to collect the image data and control the decoding unit to decode the image data upon triggering. Once triggered, the central processor issues an instruction to discard N frames of image data in a specific frame number, where the N frames of image data in a specific frame number is image data that was previously collected and remaining in the optical information collector upon triggering, which can prevent residual image data from being decoded and outputted, causing a decoding error, thereby improving a decoding efficiency.
    Type: Application
    Filed: January 16, 2024
    Publication date: May 9, 2024
    Inventors: DONGSHENG WANG, JIANGTAO WEI, SONGLAI ZHANG, XIAOQIN ZHOU
  • Publication number: 20240123502
    Abstract: The present disclosure relates to titanium alloy powder for selective laser melting (SLM) 3D printing, an SLM titanium alloy and the preparation thereof. The used titanium alloy powder comprises the following element components by weight percentage: 2.0 to 4.5% of Al, and 3.0 to 4.5% of V, with the balance being Ti and inevitable impurities. During preparation, a titanium sponge and an Al—V alloy are mixed and pressed into a block as a melting electrode; the titanium alloy ingot having good uniformity is obtained after smelting by using a vacuum consumable electric arc furnace for three times; and the ingot is forged twice and processed into a bar for powder-making. The bar for powder-making is subjected to processes such as washing and drying, atomizing, sieving, and airflow classification to prepare SLM titanium alloy powder. The titanium alloy powder is melted and stacked layer by layer by means of SLM equipment to finally obtain an SML titanium alloy block.
    Type: Application
    Filed: July 13, 2023
    Publication date: April 18, 2024
    Applicant: Shanghai Jiao Tong University
    Inventors: Leyun Wang, Xiaoqin Zeng, Zhe Song
  • Patent number: 11946908
    Abstract: The present invention discloses a method for constructing a surface stress distribution cloud map based on critical refraction longitudinal wave detection. The method comprises: firstly, meshing a surface of a detected article; secondly, The mean transverse stress on different grid lines and the mean longitudinal stress on different grid lines were obtained by the critical refraction longitudinal wave detection method; next, calculating the equivalent stress of each mesh node according to the mean transverse stress on different mesh transverse lines and the mean longitudinal stress on different mesh longitudinal lines on the surface of the detected article; and finally, drawing a stress distribution cloud map of the surface of the detected article according to the equivalent stress. The present invention can obtain the stress situations at different points on the surface of the detected article.
    Type: Grant
    Filed: September 24, 2023
    Date of Patent: April 2, 2024
    Assignees: Beijing Precision Machinery & Engineering Research Co., Ltd., Beijing University Of Technology
    Inventors: Yuhong Dai, Nana Niu, Zuguang Huang, Junyan Xing, Xiaofeng Zhu, Huiling Ren, Heqiang Liu, Dequan Wang, Yaru Hou, Xiaoqin Hao
  • Publication number: 20240105532
    Abstract: The present disclosure provides a chip packaging method and a chip packaging structure. The chip packaging method includes: providing an encapsulated grain and a packaging substrate, the encapsulated grain including a first hybrid bonding structure; wherein the packaging substrate includes a front side and a back side opposite to each other; a second hybrid bonding structure is formed on the front side of the packaging substrate and a connection pin is formed on the back side of the packing substrate; the second hybrid bonding structure and the connection pin are electrically connected through a third connecting metal column penetrating the packaging substrate; and bonding together the first hybrid bonding structure of the encapsulated grain and the second hybrid bonding structure of the packaging substrate by medium-to-medium and metal-to-metal aligned bonding such that the encapsulated grain is bonded to the packaging substrate.
    Type: Application
    Filed: December 31, 2022
    Publication date: March 28, 2024
    Inventors: Zhigang PAN, Ning WANG, Xiaoqin SUN, Peng SUN, Daohong YANG, Sheng HU, Guoliang YE
  • Publication number: 20240089137
    Abstract: A conference data processing method includes acquiring a first meeting list of meetings created by a user, meetings in the first meeting list having been created by the user through an instant messaging (IM) client. The IM client includes an interface for calling a software development kit (SDK) of a separate conference application implementing at least one of audio or video conferencing. The method further includes requesting, through a fusion server, a server of the conference application to create a second meeting list according to the first meeting list, and receiving, through the fusion server, the second meeting list transmitted by the server of the conference application. The second meeting list includes meetings that correspond respectively to the meetings in the first meeting list. The method further includes establishing an association relationship between a meeting in the first meeting list and a meeting in the second meeting list.
    Type: Application
    Filed: November 22, 2023
    Publication date: March 14, 2024
    Applicant: Tencent Technology (Shenzhen) Company Limited
    Inventors: Tieming HUANG, Xiaoqin WANG, Qiang HUANG, Bin LI, Lei LI, Chuwei ZENG
  • Patent number: 11908643
    Abstract: The application relates to a spring mechanism for a dual power transfer switch and a dual power transfer switch. The spring mechanism includes: a base mounted on a housing of the dual power transfer switch; and a spring mounted on the base. The spring includes a first leg configured to contact and exert a pressure on an indicator of the dual power transfer switch, so as to generate a frictional force between the first leg and the indicator and reduce a rebound of the indicator upon the indicator moving between a first indicating position and an intermediate indicating position, the first indicating position indicates that the dual power transfer switch is in a first power-on position, and the intermediate indicating position indicates that the dual power transfer switch is in a dual-off position.
    Type: Grant
    Filed: April 22, 2022
    Date of Patent: February 20, 2024
    Assignee: Schneider Electric Industries SAS
    Inventors: Junjie Zhou, Xi Xie, Xiaoqin Wang
  • Publication number: 20230137264
    Abstract: A hybrid propulsion system includes a heat engine configured to drive a heat engine shaft. An electric motor is configured to drive an electric motor shaft. A transmission system includes at least one gearbox. The transmission system is configured to receive rotational input power from each of the heat engine shaft and the electric motor shaft and to convert the rotation input power to output power.
    Type: Application
    Filed: December 21, 2022
    Publication date: May 4, 2023
    Applicant: Pratt & Whitney Canada Corp.
    Inventors: Eric LaTulipe, Jean Thomassin, Xiaoqin Wang, Jean Dubreuil, Luc Dionne, Andre Julien
  • Publication number: 20230097282
    Abstract: A hybrid-electric powertrain system for aircraft includes a gearbox having a first rotary shaft for output to drive an air mover for aircraft thrust. The system includes a first prime mover connected by a second rotary shaft to the gearbox for power input to the gearbox. Further, the system includes a second prime mover connected by a third rotary shaft to the gearbox. The second prime mover can have a hollow core, and at least one of the first and second rotary shafts passes through the hollow core and the third rotary shaft.
    Type: Application
    Filed: December 6, 2022
    Publication date: March 30, 2023
    Applicant: Pratt & Whitney Canada Corp.
    Inventor: Xiaoqin Wang
  • Publication number: 20230069580
    Abstract: The chemically cross-linked hydrogel is a hydrogel formed by reaction of silk with a crosslinking agent, and the crosslinking agent is a diglycidyl ether crosslinking agent. The hydrogel is obtained by dissolving silk fibers in a lithium bromide solution and crosslinking through the crosslinking agent. The hydrogel has good elasticity, and can recover more than 90% of its volume/height after being compressed for 100 cycles with a compressive deformation of 20%. The silk is very stable in matrix structure and mechanical properties. After incubation in PBS at 37° C. for 30 days, the content of ?-sheets in the secondary structure elements of the silk is less than or equal to 40%, and its compressive modulus is less than or equal to 100% (with a compressive deformation of 20%). The hydrogel has good biocompatibility and adjustable biodegradability, and can be used for repairing or filling tissues in subjects.
    Type: Application
    Filed: August 12, 2022
    Publication date: March 2, 2023
    Inventors: Zhaozhu ZHENG, Xiaoqin WANG, Wenjun GUO
  • Patent number: 11576862
    Abstract: Provided herein relates to methods and compositions for preparing a silk microsphere and the resulting silk microsphere. In some embodiments, the methods and compositions described herein are all aqueous, which can be used for encapsulating an active agent in a silk microsphere, while maintaining activity of the active agent during processing. In some embodiments, the resulting silk microsphere can be used for sustained delivery of an active agent encapsulated therein.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: February 14, 2023
    Assignee: Trustees of Tufts College
    Inventors: David L. Kaplan, Tuna Yucel, Xiaoqin Wang, Michael Lovett
  • Publication number: 20230019138
    Abstract: A cooling system for an engine of an aircraft of a having hybrid-electric propulsion system including a nacelle body including a bottom cooling air intake disposed below a propeller hub for supplying air to an oil-air cooler, wherein the bottom cooling air intake includes a splitter dividing the bottom cooling air intake into a first channel and a second channel.
    Type: Application
    Filed: August 11, 2022
    Publication date: January 19, 2023
    Applicant: Pratt & Whitney Canada Corp.
    Inventors: Frank Becker, Eric LaTulipe, Xiaoqin Wang
  • Publication number: 20220344851
    Abstract: A plug-in contact assembly suitable for automatic transfer switches includes a contact holder, two moving contact pieces disposed apart from each other, a moving contact piece bracket and a biasing spring; the contact holder holds the moving contact piece bracket and the biasing spring therein; and the two moving contact pieces disposed apart from each other are held in place relative to the contact holder under the joint action of the biasing spring and the moving contact piece bracket; characterized in that, two ends of each moving contact piece are each provided with a moving contact thereon by means of welding.
    Type: Application
    Filed: April 22, 2022
    Publication date: October 27, 2022
    Applicant: Schneider Electric Industries SAS
    Inventors: Junjie Zhou, Xi Xie, Bo Wang, Xiaoqin Wang
  • Publication number: 20220344111
    Abstract: The application relates to a spring mechanism for a dual power transfer switch and a dual power transfer switch. The spring mechanism includes: a base mounted on a housing of the dual power transfer switch; and a spring mounted on the base. The spring includes a first leg configured to contact and exert a pressure on an indicator of the dual power transfer switch, so as to generate a frictional force between the first leg and the indicator and reduce a rebound of the indicator upon the indicator moving between a first indicating position and an intermediate indicating position, the first indicating position indicates that the dual power transfer switch is in a first power-on position, and the intermediate indicating position indicates that the dual power transfer switch is in a dual-off position.
    Type: Application
    Filed: April 22, 2022
    Publication date: October 27, 2022
    Applicant: Schneider Electric Industries SAS
    Inventors: Junjie Zhou, Xi Xie, Xiaoqin Wang
  • Publication number: 20220289652
    Abstract: The present invention provides use of an aromatic alcohol as a structural inducer for silk fibroin, and also provides a method for treating silk fibroin. The method includes the following steps: bringing silk fibroin into contact with an aromatic alcohol-containing vapor or liquid to induce the structural transformation of silk fibroin, to obtain a water-insoluble silk fibroin, wherein the mechanical performance of the resulting silk fibroin material and the bonding strength between the silk fibroin material and a substrate material are over 50% higher than those of a silk fibroin material obtained by a traditional treatment method (induction with methanol, ethanol, and steam).
    Type: Application
    Filed: December 3, 2019
    Publication date: September 15, 2022
    Inventors: Xiaoqin WANG, Xusheng XIE, Zhaozhu ZHENG
  • Patent number: 11097263
    Abstract: The present disclosure provides an aromatization catalyst, a preparation method, a regeneration method and an aromatization method thereof. The preparation method comprises steps of: mixing a zeolite molecular sieve with a binder to obtain a catalyst precursor; the catalyst precursor is successively subjected to an ion exchange modification and a first modification treatment, and then subjected to a hydrothermal treatment, and further subjected to active metal loading and a second modification treatment, to obtain the aromatization catalyst. The aromatization catalyst has good carbon deposition resistance and high aromatization activity, and enables an aromatization reaction to be completed under mild conditions, and has high aromatic selectivity, and the liquid yield is above 98.5%.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: August 24, 2021
    Assignee: CHINA UNIVERSITY OF PETROLEUM—BEIJING
    Inventors: Liang Zhao, Jinsen Gao, Tianzhen Hao, Lixia Dong, Di Gao, Xiaoyu Wu, Xiaoqin Wang, Liyuan Cao, Chunming Xu
  • Publication number: 20210060540
    Abstract: The present disclosure provides an aromatization catalyst, a preparation method, a regeneration method and an aromatization method thereof. The preparation method comprises steps of: mixing a zeolite molecular sieve with a binder to obtain a catalyst precursor; the catalyst precursor is successively subjected to an ion exchange modification and a first modification treatment, and then subjected to a hydrothermal treatment, and further subjected to active metal loading and a second modification treatment, to obtain the aromatization catalyst. The aromatization catalyst has good carbon deposition resistance and high aromatization activity, and enables an aromatization reaction to be completed under mild conditions, and has high aromatic selectivity, and the liquid yield is above 98.5%.
    Type: Application
    Filed: August 30, 2019
    Publication date: March 4, 2021
    Inventors: Liang ZHAO, Jinsen Gao, Tianzhen Hao, Lixia Dong, Di Gao, Xiaoyu Wu, Xiaoqin Wang, Liyuan Cao, Chunming Xu
  • Patent number: 10736943
    Abstract: A method was developed to prepare silk fibroin microspheres using lipid vesicles as templates to efficiently load therapeutic agents in active form for controlled release. The lipids are subsequently removed through the use of a dehydration agent, such as methanol or sodium chloride, resulting in ?-sheet structure dominant silk microsphere structures having about 2 ?m in diameter. The therapeutic agent can be entrapped in the silk microspheres and used in pharmaceutical formulations for controlled-release treatments.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: August 11, 2020
    Assignee: Trustees of Tufts College
    Inventors: David L. Kaplan, Xiaoqin Wang
  • Patent number: 10698973
    Abstract: A method for concurrent reading of mixed radix DFT/IDFT data, a method for concurrent calculation of mixed radix DFT/IDFT method, an apparatus for concurrent reading of mixed radix DFT/IDFT data, and an apparatus for concurrent calculation of mixed radix DFT/IDFT. The method for concurrent reading includes: configuring dual circulation parameters according to the number of points corresponding to the number of series to be computed and the number of points corresponding to the number of series accomplished; then, determining the value size between the maximum number of concurrently read data and the product of the number of points corresponding to the number of series accomplished; and based on the result of determination, calculating the dual circulation parameters corresponding thereto according to the result of determination, and concurrently reading data based on the calculated dual circulation parameters.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: June 30, 2020
    Assignee: Institute of Automation, Chinese Academy of Sciences
    Inventors: Huan Li, Xiaoqin Wang, Chen Guo
  • Patent number: 10653786
    Abstract: Provided herein relates to compositions and methods for lubrication of a surface. The surface amenable to the compositions and methods described herein can be a non-biological surface, a biological surface, or a combination thereof. In some embodiments, the composition comprising a phospholipid-coated silk microsphere can be used for lubrication of a surface. In some embodiments, the composition comprising a phospholipid-coated silk microsphere can be used for joint lubrication, e.g., for treatment of joint disorders such as arthritis.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: May 19, 2020
    Assignees: TRUSTEES OF TUFTS COLLEGE, Tulane Educational Fund
    Inventors: David L. Kaplan, Xiaoqin Wang, Vijay John, Noshir Pesika, Rubo Zheng
  • Patent number: 10533037
    Abstract: The invention discloses a freeze-dried powder of high molecular weight silk fibroin, preparation process and use thereof. The freeze-dried powder is obtained from silk by degumming, dissolution, dialysis, centrifugation, high temperature and high pressure treatment and freeze-drying. A method of preparing silk fibroin microspheres with polyethylene glycol comprises mixing a silk fibroin solution of 1-30 wt % with a PEG solution of 10-60 w % and incubating the resulting solution. A controlled-release or sustained-release silk fibroin gel formulation includes a gel-state carrier and a drug dispersed/adsorbed therein, the carrier is a silk fibroin gel formed by blending with LMW-PEG.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: January 14, 2020
    Assignees: SIMATECH INCORPORATION, TRUSTEES OF TUFTS COLLEGE
    Inventors: Xiaoqin Wang, Jian Liu, Jianbing Wu, Cheng Qian, Zhaozhu Zheng, Shaozhe Guo, Fuxin Shi, David Kaplan