Patents by Inventor Yongtao LIU

Yongtao LIU 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: 11511637
    Abstract: According to one aspect of the present disclosure, there is provided an apparatus that includes first, second, and third power converter stages connected to a transformer module. At least one of the first, second, and third power converter stages is a multi-level power converter stage that has multiple configurations to generate different output voltages from an input voltage.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: November 29, 2022
    Assignee: Huawei Digital Power Technologies Co., Ltd.
    Inventors: Huibin Zhu, Heping Dai, Yongtao Liang, Weiping Liu
  • Publication number: 20220369822
    Abstract: A foldable electric bed comprising a front half portion and a rear half portion, wherein the front half portion and the rear half portion are rotatably connected through hinge members wherein the front half portion further comprising a front bed board and a front bed frame, and the rear half portion furthering comprising a rear bed board and a rear bed frame, wherein the front bed board and the rear bed board are made of wood boards or iron nets, wherein the electric bed may be folded during transportation.
    Type: Application
    Filed: May 21, 2021
    Publication date: November 24, 2022
    Inventors: Xiao MA, Yongtao LIU, Cuixin CHEN, Feng TAO
  • Patent number: 11403481
    Abstract: A saturation clustering-based method for positioning bone marrow white blood cells: first, pre-processing a bone marrow white blood cell image to eliminate partial noise points and simultaneously smooth the image; using K-means clustering to cluster saturation channels of the bone marrow white blood cell image, and select the type of the white blood cells according to a decision tree algorithm; next, eliminating irrelevant areas in a binary image of the white blood cells by means of a morphology processing algorithm, and simultaneously filling in point holes in the white blood cells; and finally, positioning the white blood cells. The present method is simple and effective, and is suitable for a wide range of applications compared to existing threshold-based algorithms, while rendering a final result more accurate by integrating the decision tree algorithm.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: August 2, 2022
    Assignee: Hangzhou Zhiwei Information Technology Co., Ltd.
    Inventors: Fengqi Fang, Qiang Li, Ju Lu, Shun Li, Yongtao Liu, Jiajia Hu, Zhen Huang
  • Patent number: 11383997
    Abstract: A method for ecologic configuration of an oil production wastewater artificial wetland to realize up-to-standard operation in winter. When artificial wetland is utilized to treat oil production high-salt wastewater, ecologic configuration of subsurface and surface flow artificial wetland is modified to realize up-to-standard operation in winter. Subsurface flow artificial wetland is composed of soil matrix, water distribution pipe disposed on bottom of soil matrix, wrapped with water-permeable nonwoven cloth and configured to deliver wastewater, and reeds with root systems growing on an inner side of wall of water distribution pipe, stems growing on outer side of wall of water distribution pipe and length being greater than thickness of soil matrix; and surface flow artificial wetland is composed of soil matrix, reeds growing on matrix, water, winter aquatic salt-resistant cold-liking plants, block-stocked fishes, shrimps, crabs, mussels, Mytilus edulis, oysters or clams and artificial sand dam.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: July 12, 2022
    Assignees: GUDONG PETROLEUM PRODUCTION FACTORY SHENGLI OILFIELD OF SINOPEC, DONGYING ZHENGZE ENVIRONMENTAL TECHNOLOGY CO., LTD., SHANDONG UNIVERSITY
    Inventors: Chunbo Liu, Wei Hu, Wanguo Hou, Xian Zhao, Zhaohui Shang, Jianbo Ma, Yongtao Gu, Haifeng He, Jingen Yan, Zhimin Peng, Guodong Meng, Xiaohui Xie
  • Publication number: 20220197865
    Abstract: A system for providing user access to electronic mail includes an email client and an email server. The email client receives and communicates a user interaction with an email message The email server that receives the communication, determines whether the email message stored in a live database or in a backup storage. Upon determination that the email message is stored in a backup storage, the email server performs a message exchange with a backup storage system to perform the user-requested action.
    Type: Application
    Filed: March 14, 2022
    Publication date: June 23, 2022
    Inventors: Arun Prasad Amarendran, Jun H. Ahn, Tirthankar Chatterjee, Manas Bhikchand Mutha, Ho-Chi Chen, Prosenjit Sinha, Yongtao Liu
  • Patent number: 11355336
    Abstract: A method of performing time-of-flight secondary ion mass spectrometry on a sample includes the step of directing a beam of primary ions to the sample, and stimulating the migration of ions within the sample while the beam of primary ions is directed at the sample. The stimulation of the ions is cycled between a stimulation state and a lower stimulation state. Secondary ions emitted from the sample by the beam of primary ions are collected in a time-of-flight mass spectrometer. Time-of-flight secondary ion mass spectrometry is then performed on the secondary ions. A system for performing time-of-flight secondary ion mass spectrometry on a sample is also disclosed.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: June 7, 2022
    Assignees: UT-BATTELLE, LLC, UNIVERSITY OF TENNESSEE RESEARCH FOUNDATION
    Inventors: Anton V. Ievlev, Olga S. Ovchinnikova, Matthias Lorenz, Yongtao Liu
  • Patent number: 11328926
    Abstract: The present invention relates to the field of chemical industry, and discloses organosilicone micro-mesoporous ultra-low dielectric thin films and preparation methods therefor. A structural formula of a POSS-based organosilane precursor in the thin film is as follows: where n is 12, 16, 18, 20, or 22, and X is CH3 or CH2CH3. The preparation method includes the following steps: dissolving a certain amount of the POSS-based precursor in an organic solvent at a room temperature; adding an appropriate amount of a photoacid generator, after uniformly stirring, spraying a mixed liquid to form a film on a substrate; placing the substrate under a light-emitting diode lamp for irradiating for a preset time after the organic solvent is completely evaporated; then placing the substrate in N,N-dimethylformamide for undergoing a transesterification reaction with fluoroalkyl alcohol for 24-72 h; and washing and drying to obtain the organosilicone micro-mesoporous ultra-low dielectric thin film.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: May 10, 2022
    Assignee: HUAIYIN INSTITUTE OF TECHNOLOGY
    Inventors: Lingli Ni, Yongtao Liu, Tao Xie, Minhua Xu, Zhitian Chen, Peng Chai, Xiaoyan Gao, Liang Dong Feng, Shizhong Zhang
  • Publication number: 20220138148
    Abstract: Techniques for providing data preview before recalling large data files are disclosed. In one aspect, a data file is made accessible while being offline by converting the data file from a native format to a preview format, storing the data file in the preview format in a primary storage that is locally available and moving, after the conversion to the preview format, the data file in the native format to a secondary storage. When a viewing request is received for the data file, the data file in the preview format is displayed to fulfill the viewing request.
    Type: Application
    Filed: January 19, 2022
    Publication date: May 5, 2022
    Inventors: Yongtao LIU, Paramasivam KUMARASAMY, Prakash VARADHARAJAN
  • Publication number: 20210257205
    Abstract: A method of performing time-of-flight secondary ion mass spectrometry on a sample includes the step of directing a beam of primary ions to the sample, and stimulating the migration of ions within the sample while the beam of primary ions is directed at the sample. The stimulation of the ions is cycled between a stimulation state and a lower stimulation state. Secondary ions emitted from the sample by the beam of primary ions are collected in a time-of-flight mass spectrometer. Time-of-flight secondary ion mass spectrometry is then performed on the secondary ions. A system for performing time-of-flight secondary ion mass spectrometry on a sample is also disclosed.
    Type: Application
    Filed: February 12, 2021
    Publication date: August 19, 2021
    Inventors: Anton V. Ievlev, Olga D. Ovchinnikova, Matthias Lorenz, Yongtao Liu
  • Publication number: 20210175074
    Abstract: The present invention relates to the field of chemical industry, and discloses organosilicone micro-mesoporous ultra-low dielectric thin films and preparation methods therefor. A structural formula of a POSS-based organosilane precursor in the thin film is as follows: where n is 12, 16, 18, 20, or 22, and X is CH3 or CH2CH3. The preparation method includes the following steps: dissolving a certain amount of the POSS-based precursor in an organic solvent at a room temperature; adding an appropriate amount of a photoacid generator, after uniformly stirring, spraying a mixed liquid to form a film on a substrate; placing the substrate under a light-emitting diode lamp for irradiating for a preset time after the organic solvent is completely evaporated; then placing the substrate in N,N-dimethylformamide for undergoing a transesterification reaction with fluoroalkyl alcohol for 24-72 h; and washing and drying to obtain the organosilicone micro-mesoporous ultra-low dielectric thin film.
    Type: Application
    Filed: October 9, 2018
    Publication date: June 10, 2021
    Inventors: Lingli NI, Yongtao LIU, Tao XIE, Minhua XU, Zhitian CHEN, Peng CHAI, Xiaoyan GAO, Liang Dong FENG, Shizhong ZHANG
  • Publication number: 20210096045
    Abstract: A method includes: obtaining relevant information of the bone marrow smear; generating a global image; generating a to-be-digitized region, an amount of nucleated cells to be collected, and an amount of megakaryocytes to be classified; digitally labeling the bone marrow smear; scanning the to-be-digitized region by low magnification, labeling and identifying a target observation object; generating a switched image of the scanned region; scanning megakaryocytes by low magnification, and labeling and identifying the scanned megakaryocytes, the amount of the scanned megakaryocytes being the same as the amount of megakaryocytes to be classified; generating images of the scanned megakaryocytes; scanning nucleated cells by oil mirror scanning, and labeling and identifying the scanned nucleated cells, the amount of the scanned nucleated cells being the same as the amount of nucleated cells to be collected; generating images of the scanned nucleated cells; and generating a digital smear of the bone marrow smear.
    Type: Application
    Filed: May 23, 2019
    Publication date: April 1, 2021
    Inventors: Qiang Li, Ju Lu, Shun Li, Yongtao Liu, Jiajia Hu
  • Publication number: 20210004640
    Abstract: A saturation clustering-based method for positioning bone marrow white blood cells: first, pre-processing a bone marrow white blood cell image to eliminate partial noise points and simultaneously smooth the image; using K-means clustering to cluster saturation channels of the bone marrow white blood cell image, and select the type of the white blood cells according to a decision tree algorithm; next, eliminating irrelevant areas in a binary image of the white blood cells by means of a morphology processing algorithm, and simultaneously filling in point holes in the white blood cells; and finally, positioning the white blood cells. The present method is simple and effective, and is suitable for a wide range of applications compared to existing threshold-based algorithms, while rendering a final result more accurate by integrating the decision tree algorithm.
    Type: Application
    Filed: May 22, 2019
    Publication date: January 7, 2021
    Inventors: Fengqi Fang, Qiang Li, Ju Lu, Shun Li, Yongtao Liu, Jiajia Hu, Zhen Huang
  • Publication number: 20200299448
    Abstract: The present invention relates to the field of chemical industries, and discloses a method for synthesizing a highly weather-resistant red waterborne polyurethane emulsion, including using oligomeric diol, aliphatic diisocyanate, iron-rich red attapulgite clay, and a hydrophilic chain extender for stepwise polymerization to synthesize a red attapulgite clay modified hydrophilic polyurethane prepolymer, then self-emulsifying and dispersing in metered water, and then adding a small molecule diamine chain extender for chain extension to obtain a red attapulgite clay modified red waterborne polyurethane emulsion. The preparation method of the present invention is easy to operate, energy-saving and environmentally friendly. The prepared red waterborne polyurethane emulsion has a solid content>30 wt. % and the pH between 6.0 and 7.0, and its coating product has the advantages of good water resistance, high weather resistance, vivid color, etc., and has a broad market prospect.
    Type: Application
    Filed: January 8, 2019
    Publication date: September 24, 2020
    Inventors: Yu MAO, Lingli NI, Yongtao LIU, Xiaoyan GAO, Peng CAI, Jing CHENG, Guijun LI
  • Publication number: 20190278748
    Abstract: A system for providing user access to electronic mail includes an email client and an email server. The email client receives and communicates a user interaction with an email message. The email server that receives the communication, determines whether the email message stored in a live database or in a backup storage. Upon determination that the email message is stored in a backup storage, the email server performs a message exchange with a backup storage system to perform the user-requested action.
    Type: Application
    Filed: May 29, 2019
    Publication date: September 12, 2019
    Inventors: Arun Prasad Amarendran, Jun H. Ahn, Tirthankar Chatterjee, Manas Bhikchand Mutha, Ho-Chi Chen, Prosenjit Sinha, Yongtao Liu
  • Patent number: 10324897
    Abstract: A system for providing user access to electronic mail includes an email client and an email server. The email client receives and communicates a user interaction with an email message The email server that receives the communication, determines whether the email message stored in a live database or in a backup storage. Upon determination that the email message is stored in a backup storage, the email server performs a message exchange with a backup storage system to perform the user-requested action.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: June 18, 2019
    Assignee: Commvault Systems, Inc.
    Inventors: Arun Prasad Amarendran, Jun H. Ahn, Tirthankar Chatterjee, Manas Bhikchand Mutha, Ho-chi Chen, Prosenjit Sinha, Yongtao Liu
  • Publication number: 20190065509
    Abstract: Techniques for providing data preview before recalling large data files are disclosed. In one aspect, a data file is made accessible while being offline by converting the data file from a native format to a preview format, storing the data file in the preview format in a primary storage that is locally available and moving, after the conversion to the preview format, the data file in the native format to a secondary storage. When a viewing request is received for the data file, the data file in the preview format is displayed to fulfill the viewing request.
    Type: Application
    Filed: October 24, 2018
    Publication date: February 28, 2019
    Inventors: Yongtao Liu, Paramasivam Kumarasamy, Prakash Varadharajan
  • Patent number: 10157184
    Abstract: Techniques for providing data preview before recalling large data files are disclosed. In one aspect, a data file is made accessible while being offline by converting the data file from a native format to a preview format, storing the data file in the preview format in a primary storage that is locally available and moving, after the conversion to the preview format, the data file in the native format to a secondary storage. When a viewing request is received for the data file, the data file in the preview format is displayed to fulfill the viewing request.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: December 18, 2018
    Assignee: Commvault Systems, Inc.
    Inventors: Yongtao Liu, Paramasivam Kumarasamy, Prakash Varadharajan
  • Patent number: 9984006
    Abstract: Data storage systems are disclosed for automatically generating encryption rules based on a set of training files that are known to include sensitive information. The system may use a number of heuristic algorithms to generate one or more encryption rules for determining whether a file includes sensitive information. Further, the system may apply the heuristic algorithms to the content of the files, as determined by using natural language processing algorithms, to generate the encryption rules. Moreover, systems are disclosed that are capable of automatically determining whether to encrypt a file based on the generated encryption rules. The content of the file may be determined using natural language processing algorithms and then the encryption rules may be applied to the content of the file to determine whether to encrypt the file.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: May 29, 2018
    Assignee: Commvault Systems, Inc.
    Inventors: Arun Prasad Amarendran, Tirthankar Chatterjee, Yun Yuan, Yongtao Liu
  • Publication number: 20180032446
    Abstract: Data storage systems are disclosed for automatically generating encryption rules based on a set of training files that are known to include sensitive information. The system may use a number of heuristic algorithms to generate one or more encryption rules for determining whether a file includes sensitive information. Further, the system may apply the heuristic algorithms to the content of the files, as determined by using natural language processing algorithms, to generate the encryption rules. Moreover, systems are disclosed that are capable of automatically determining whether to encrypt a file based on the generated encryption rules. The content of the file may be determined using natural language processing algorithms and then the encryption rules may be applied to the content of the file to determine whether to encrypt the file.
    Type: Application
    Filed: June 23, 2017
    Publication date: February 1, 2018
    Inventors: Arun Prasad AMARENDRAN, Tirthankar CHATTERJEE, Yun YUAN, Yongtao LIU
  • Patent number: 9727491
    Abstract: Data storage systems are disclosed for automatically generating encryption rules based on a set of training files that are known to include sensitive information. The system may use a number of heuristic algorithms to generate one or more encryption rules for determining whether a file includes sensitive information. Further, the system may apply the heuristic algorithms to the content of the files, as determined by using natural language processing algorithms, to generate the encryption rules. Moreover, systems are disclosed that are capable of automatically determining whether to encrypt a file based on the generated encryption rules. The content of the file may be determined using natural language processing algorithms and then the encryption rules may be applied to the content of the file to determine whether to encrypt the file.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: August 8, 2017
    Assignee: Commvault Systems, Inc.
    Inventors: Arun Prasad Amarendran, Tirthankar Chatterjee, Yun Yuan, Yongtao Liu