Patents by Inventor Jiaqi Wang

Jiaqi 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).

  • Patent number: 11049217
    Abstract: An example of the present disclosure provides methods, apparatuses and devices for magnifying a feature map, and a computer readable storage medium. The method includes: receiving a source feature map to be magnified; obtaining N reassembly kernels corresponding to each source position in the source feature map by performing convolution on the source feature map, wherein N refers to a square of a magnification factor of the source feature map; obtaining, for each of the reassembly kernels, a normalized reassembly kernel by performing normalization; obtaining, for each source position in the source feature map, N reassembly features corresponding to the source position by reassembling features of a reassembly region determined according to the source position with N normalized reassembly kernels corresponding to the source position; and generating a target feature map according to the N reassembly features corresponding to each source position in the source feature map.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: June 29, 2021
    Assignee: Beijing Sensetime Technology Development Co., Ltd.
    Inventors: Jiaqi Wang, Kai Chen, Rui Xu, Ziwei Liu, Chen Change Loy, Dahua Lin
  • Publication number: 20210190733
    Abstract: A method for simultaneously determining fat-soluble vitamins and carotenoids in serum, and belonging to the technical field of analytical chemistry, includes an ionic liquid (IL) or a binary mixed solvent composed of an IL and another solvent is adopted as an extractant; the biological samples are pre-treated by liquid-liquid extraction (LLE) and then detected by high-performance liquid chromatography (HPLC); retinyl acetate and trans-?-apo-8?-carotenal are adopted as the internal standards for fat-soluble vitamins and carotenoids, respectively; and the internal standard method is adopted to establish standard curves for quantification based on the retention time and the UV-Vis absorption spectrum. Compared with the existing methods, in the disclosure, the pretreatment process is simple and easy to be conducted, the sample can be prepared in a short time, and the toxic and harmful organic solvent is used at a reduced amount.
    Type: Application
    Filed: September 30, 2020
    Publication date: June 24, 2021
    Applicant: Xi'an Jiaotong University
    Inventors: Liyun KONG, Jiaqi WANG, Yan LIU, Min WU, Lijuan SHI, Rui ZHANG, Menglu WU, Guoli LI, Feifei QI, Le MA
  • Publication number: 20210104015
    Abstract: An example of the present disclosure provides methods, apparatuses and devices for magnifying a feature map, and a computer readable storage medium. The method includes: receiving a source feature map to be magnified; obtaining N reassembly kernels corresponding to each source position in the source feature map by performing convolution on the source feature map, wherein N refers to a square of a magnification factor of the source feature map; obtaining, for each of the reassembly kernels, a normalized reassembly kernel by performing normalization; obtaining, for each source position in the source feature map, N reassembly features corresponding to the source position by reassembling features of a reassembly region determined according to the source position with N normalized reassembly kernels corresponding to the source position; and generating a target feature map according to the N reassembly features corresponding to each source position in the source feature map.
    Type: Application
    Filed: December 15, 2020
    Publication date: April 8, 2021
    Inventors: Jiaqi WANG, Kai CHEN, Rui XU, Ziwei LIU, Chen Change LOY, Dahua LIN
  • Publication number: 20210087595
    Abstract: This application relates to biological pharmacy and biochemical engineering, and more particularly to a method of preparing a (S)-1-benzyl-1,2,3,4,5,6,7,8-octahydroisoquinoline compound. This method includes: subjecting a 1-benzyl-1,2,3,4,5,6,7,8-octahydroisoquinoline raceme as a substrate to selective oxidation in the presence of a monoamine oxidase and the non-selective reduction to prepare the (S)-1-benzyl-1,2,3,4,5,6,7,8-octahydroisoquinoline compound, where the monoamine oxidase has an amino acid sequence as shown in SEQ ID NO: 1 or an amino acid sequence having an identity of more than 80% with SEQ ID NO: 1. The kinetic resolution is carried out in the presence of the monoamine oxidase as a catalyst and a reductant, and the resulting product has a high chiral purity.
    Type: Application
    Filed: February 29, 2020
    Publication date: March 25, 2021
    Inventors: Fener CHEN, Zedu HUANG, Zhining LI, Jiaqi WANG
  • Publication number: 20210033509
    Abstract: The present invention discloses an experimental device for cavitation corrosion of liquid metal, comprising a stand, and a vibration device and a lifting and rotating device separately arranged on the stand, wherein a heating device for experimental use is arranged on the vibration device; a furnace lid with a sealing ring is arranged above the heating device; a stirring mechanism is arranged on the furnace lid; the stirring mechanism is connected to a chunk below the furnace lid; a clamp is connected below the chuck, and the clamp is connected to a sample; the furnace lid is connected to the lifting and rotating device; the lifting and rotating device can control the movement of the furnace lid so that the sample is placed in the heating device; the lifting and rotating device, the stirring mechanism, the heating device and the vibration device are connected to a control system.
    Type: Application
    Filed: January 14, 2020
    Publication date: February 4, 2021
    Inventors: Shengqiang MA, Jiaqi WANG, Ping LV, Zongliang ZHANG, Jiandong XING, Hanguang FU, Yimin GAO
  • Publication number: 20210020596
    Abstract: A chip structure, a wafer structure and a method for manufacturing the same are provided in the present disclosure. A first chip and a second chip are bonded by bonding layers of a dielectric material. Top wiring layers are led out through bonding via holes from a back surface of a bonded chip. The bonding via holes are used for bonding and are surrounded by the bonding layers. A top wiring layer of a third chip is led out through bonding pads formed in a bonding layer. The bonding via holes are aligned with and bonded to the bonding pads to achieve bonding of the three chips. The top wiring layer of the third chip is led out from the back surface of the third chip through a lead-out pad.
    Type: Application
    Filed: September 25, 2019
    Publication date: January 21, 2021
    Applicant: Wuhan Xinxin Semiconductor Manufacturing Co., Ltd.
    Inventors: Hongsheng YI, Guoliang YE, Jiaqi WANG
  • Publication number: 20200408094
    Abstract: The present invention discloses a mine exploitation method based on stoping, separation and filling control. The design process comprises: deploying a gangue-less coal mining system; choosing a suitable coal and gangue separation method according to a separation requirement; choosing a suitable filling method according to mine geology, production conditions and rock stratum control requirement; reversely calculating a filling rate according to gangue discharge requirement and control indexes by utilizing theoretical calculation, simulation and experiment; determining a filling process and a separation process according to the filling rate; and feeding back and adjusting the filling process and separation process parameters by monitoring filling and control effect indexes.
    Type: Application
    Filed: April 1, 2019
    Publication date: December 31, 2020
    Applicants: China University of Mining and Technology, Xuzhou Zhongkuang Backfilling & Mining Technology Co., Ltd.
    Inventors: Jixiong ZHANG, Qiang ZHANG, Zhongya WU, Feng JU, Jiaqi WANG, Yang CHEN
  • Publication number: 20200387755
    Abstract: A method for machine learning-based classification may include training a machine learning model with a full training data set, the full training data set comprising a plurality of data points, to generate a first model state of the machine learning model, generating respective embeddings for the data points in the full training data set with the first model state of the machine learning model, applying a clustering algorithm to the respective embeddings to generate one or more clusters of the embeddings, identifying outlier embeddings from the one or more clusters of the embeddings, generating a reduced training data set comprising the full training data set less the data points associated with the outlier embeddings, training the machine learning model with the reduced training data set to a second model state, and applying the second model state to one or more data sets to classify the one or more data sets.
    Type: Application
    Filed: June 5, 2020
    Publication date: December 10, 2020
    Inventors: Matthew Hagen, Estelle Afshar, Huiming Qu, Ala Eddine Ayadi, Jiaqi Wang
  • Publication number: 20200378255
    Abstract: An internally injected replacement support room-type coal pillar recovery method is provided. During the recovery the room-type coal pillars with an aspect ratio greater than 0.6 are divided into two parts: reserved coal pillars and pre-mined coal pillars. After the mining of the pre-mined coal pillars, a cemented filling material is injected into a goaf surrounded by the reserved coal pillars, and is stabilized to replace the coal pillars for support, and the reserved coal pillars are recovered. A mechanical model of the reserved coal pillars in a support overburden stage is established based on the Winkler beam theory, to obtain displacement and stress conditions of a roof of the reserved coal pillar in a support stage. A theoretical reserve-width of the reserved coal pillars is obtained according to a first strength theory of the roof and a criterion of ultimate strength of the reserved coal pillars.
    Type: Application
    Filed: February 22, 2019
    Publication date: December 3, 2020
    Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
    Inventors: Nan ZHOU, Jiaqi WANG, Jixiong ZHANG, Kai SUN, Meng LI
  • Publication number: 20200359126
    Abstract: An apparatus with acoustic enhancement and corresponding frequency response is disclosed. The apparatus includes a driver with a primary bass port having a primary bass port chamber and a secondary bass port having a secondary bass port chamber. The secondary bass port can be coupled to the primary bass port at one end and have substantially unimpeded air flow at another end. The apparatus may further include an acoustic chamber that is separated or isolated from either the primary bass port chamber, secondary bass port chamber, or both primary and secondary bass port chambers. A switch may also be included to dynamically control an air flow resistor at the latter end of the secondary bass port. The primary bass port chamber, secondary bass port chamber, acoustic chamber, and the air flow resistor can separately or collectively be used for tuning the frequency response according to the acoustic enhancement desired.
    Type: Application
    Filed: May 7, 2019
    Publication date: November 12, 2020
    Applicant: Creative Technology Ltd
    Inventors: Kok Huan ONG, Jiaqi WANG, Wei-Peng Renny LIM
  • Publication number: 20200278054
    Abstract: The invention discloses a kind of composite hose, comprising composite hose body composed of outer hose body, middle hose body and inner hose body. The composite hose body is provided with hose connection clamp and plastic claw fastener on both end caps, advantageous for use convenience, good airtightness, no breakage of hose body when bending and extension of service life of hose body.
    Type: Application
    Filed: April 8, 2019
    Publication date: September 3, 2020
    Inventor: Jiaqi WANG
  • Publication number: 20200250495
    Abstract: An anchor determination includes: performing feature extraction on an image to be processed to obtain a first feature map of the image to be processed; performing anchor prediction on the first feature map via an anchor prediction network to obtain position information of anchors and shape information of the anchors in the first feature map, the position information of the anchors referring to information about positions in the first feature map where the anchors are generated. A corresponding anchor determination apparatus and a storage medium are also provided.
    Type: Application
    Filed: April 21, 2020
    Publication date: August 6, 2020
    Inventors: Kai CHEN, Jiaqi Wang, Shuo Yang, Chen Change Loy, Dahua Lin
  • Publication number: 20200106117
    Abstract: The present invention relates to the field of battery, and provides a direct ethanol fuel cell and a preparation method thereof. The method comprises the steps of: synthesizing catalyst: mixing and preheating silica powder, sucrose and trithiocyanuric acid to get a mixed powder; mixing and heating the mixed powder with Teflon to get N,S codoped carbon catalyst; synthesizing electrolyte: polymerizing sodium acrylate with an initiator and soaking the resulted hydrogel in a harsh alkaline solution; preparing cathode: coating the N,S codoped carbon catalyst onto a current collector to get the cathode; preparing anode: coating Pt—Ru/C catalyst onto a current collector to get the anode; preparing the cell: clamping the soaked hydrogel between the cathode and the anode to get the cell. The resulted cell possesses remarkable flexibility and high energy density, with the function of drop-and-play.
    Type: Application
    Filed: November 22, 2019
    Publication date: April 2, 2020
    Inventors: Yan Huang, Jiaqi Wang
  • Publication number: 20190289879
    Abstract: The present disclosure provides a method for reducing zearalenone content in straw using steam explosion technology and use thereof, creatively utilizes the huge energy released during steam explosion, and destroys the chemical structure of zearalenone without introducing other harmful chemicals, wherein the steam explosion technology can be used as a completely new technology for reducing zearalenone content in straw.
    Type: Application
    Filed: March 21, 2019
    Publication date: September 26, 2019
    Inventors: Jiaqi Wang, Shengguo Zhao, Nan Zheng, Yangdong Zhang
  • Patent number: 10215689
    Abstract: A derivative spectroscopy system for achieving a tunable resolution of 2 nm or less in resolving spectral components of an input optical signal is provided so as to estimate derivative spectra of the input optical signal based on the resolved spectral components. In the system, a first dispersive-element structure spectrally decomposes the input optical signal into subband signals. A second dispersive-element structure receives part or all of the subband signals and spectrally decomposes the received subband signals to plural spectral components. A material having a temperature-variant refractive index is used to build the second dispersive-element structure, enabling a shift of center wavelength of each spectral component as small as 2 nm of less upon changing a temperature of the second dispersive-element structure.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: February 26, 2019
    Assignee: Hong Kong Applied Science and Technoloy Research Institute Company Limited
    Inventors: Jiaqi Wang, Chun Zhang, Wei Mong Tsang
  • Publication number: 20190042705
    Abstract: The invention relates to a realization method for computer-aided screening of target aptamers and small molecule compounds, which is realized by adopting a molecular docking technology-based reverse virtual screening algorithm and comprises the steps of generating random unrepeated sequences with an appointed length of n based on a sequence length input by a user; modeling a double-stranded DNA structure for each sequence in the random unrepeated sequences and generating a corresponding double-stranded DNA three-dimensional structure file; carrying out format transformation for each generated double-stranded DNA three-dimensional structure file to be used for molecular docking; carrying out format transformation for target small molecules to enable the processed target small molecules to be used for the molecular docking; carrying out molecular docking for each target small molecule and each aptamer; and reading the score files after the molecular docking by two matrix generation functions, and respectively g
    Type: Application
    Filed: June 16, 2016
    Publication date: February 7, 2019
    Applicant: INSTITUTE OF ANIMAL SCIENCE OF CHINESE ACADEMY OF AGRICULTURAL SCIENCES
    Inventors: Nan Zheng, Ming Li, Jiaqi Wang, Yangdong Zhang, Fang Wen, Songli Li, Shengguo Zhao
  • Publication number: 20180209899
    Abstract: A derivative spectroscopy system for achieving a tunable resolution of 2 nm or less in resolving spectral components of an input optical signal is provided so as to estimate derivative spectra of the input optical signal based on the resolved spectral components. In the system, a first dispersive-element structure spectrally decomposes the input optical signal into subband signals. A second dispersive-element structure receives part or all of the subband signals and spectrally decomposes the received subband signals to plural spectral components. A material having a temperature-variant refractive index is used to build the second dispersive-element structure, enabling a shift of center wavelength of each spectral component as small as 2 nm of less upon changing a temperature of the second dispersive-element structure.
    Type: Application
    Filed: January 19, 2018
    Publication date: July 26, 2018
    Inventors: Jiaqi WANG, Chun ZHANG, Wei Mong TSANG
  • Publication number: 20180059874
    Abstract: The present disclosure relates to a method and device for processing user operations. The method includes: displaying a Graphical User Interface (GUI) for exchanging for a processing object, the GUI including a control key for confirming the exchanging for the processing object; when receiving a three-dimensional touch operation on the control key, sending a transfer instruction to a server, the transfer instruction being configured to request the server to generate an order corresponding to the processing object, and subsequently transfer a resource from a first account to a second account, to exchange for the processing object; receiving a success response from the server; and displaying a prompt indicating the success response.
    Type: Application
    Filed: June 26, 2017
    Publication date: March 1, 2018
    Inventors: Weiliang ZHANG, Xin Sui, Jiaqi Wang, Ronghua Jiang
  • Patent number: 9787532
    Abstract: A module has switchable operation states. A first switching unit switches the module between a first operation state and a second operation state. A first interface switches between sending signals to another module which has switchable operation states and receiving signals from the other module. The first interface sends a first signal to the other module when the module is in the first operation state, sends a second signal to the other module when the module is to be switched into the second operation state, and receives signals from the other module when the module is in the second operation state. A second interface communicates with the other module. When the second interface receives a response of the other module to the second signal, the first switching unit switches the module into the second operation state. The reliability of module switching is improved in an embodiment.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: October 10, 2017
    Assignee: ABB Schweiz AG
    Inventors: Ye Xu, Jiaqi Wang, Guozi Mu, Dieter Henkel, Axel Lohbeck
  • Publication number: 20150280971
    Abstract: A module has switchable operation states. A first switching unit switches the module between a first operation state and a second operation state. A first interface switches between sending signals to another module which has switchable operation states and receiving signals from the other module. The first interface sends a first signal to the other module when the module is in the first operation state, sends a second signal to the other module when the module is to be switched into the second operation state, and receives signals from the other module when the module is in the second operation state. A second interface communicates with the other module. When the second interface receives a response of the other module to the second signal, the first switching unit switches the module into the second operation state. The reliability of module switching is improved in an embodiment.
    Type: Application
    Filed: November 11, 2012
    Publication date: October 1, 2015
    Inventors: Ye Xu, Jiaqi Wang, Guozi Mu, Dieter Henkel, Axel Lohbeck