Patents by Inventor Xiaoxing Wang

Xiaoxing 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: 20210090296
    Abstract: A method and apparatus for calibrating a camera are provided. A specific embodiment of the method includes: acquiring an image-point cloud sequence, the image-point cloud sequence including at least one group of an initial image and point cloud data collected at a same time, the initial image being collected by a camera provided on an autonomous vehicle and the point cloud data being collected by a radar provided on the autonomous vehicle; determining target point cloud data of initial images corresponding to groups of image-point cloud in the image-point cloud sequence; and matching the target point cloud data with the corresponding initial images in the image-point cloud sequence to determine a correction parameter of the camera.
    Type: Application
    Filed: June 26, 2020
    Publication date: March 25, 2021
    Inventors: Shuang ZHANG, Xiang Liu, Bin Gao, Xiaoxing Zhu, Fan Yang, Junping Wang
  • Publication number: 20210089792
    Abstract: Embodiments of the present disclosure relate to a method and apparatus for outputting information. The method may include: acquiring point cloud data and image data collected by a vehicle during a driving process; determining a plurality of time thresholds based on a preset time threshold value range; executing following processing for each time threshold: identifying obstacles included in each point cloud frame and each image frame respectively; determining a similarity between the obstacles; determining, in response to the similarity being greater than a preset similarity threshold, whether a time interval between the point cloud frame and the image frame corresponding to two similar obstacles is less than the time threshold; and processing recognized obstacles based on a determining result, to determine the number of obstacles; and determining, based on a plurality of numbers, and outputting a target time threshold.
    Type: Application
    Filed: June 25, 2020
    Publication date: March 25, 2021
    Inventors: Xiang LIU, Shuang ZHANG, Bin GAO, Xiaoxing ZHU, Jingjing XUE, Fan YANG, Junping WANG, Chengfa WANG
  • Patent number: 10916693
    Abstract: A piezoelectric element has a diaphragm, a first electrode on the diaphragm, a piezoelectric layer on the first electrode, and a second electrode on the piezoelectric layer. The piezoelectric layer is a stack of multiple piezoelectric films and is made of a perovskite composite oxide containing lead, zirconium, and titanium and represented by the general formula ABO3, with the molar ratio of the A-site to the B-site (A/B) in the perovskite composite oxide being 1.14 or more and 1.22 or less. In current-time curve measurement, the activation energy calculated from relaxation current using an Arrhenius plot is 0.6 [eV] or less. The relaxation current is the amount of current at the time at which a downward trend in current turns upward.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: February 9, 2021
    Inventors: Takayuki Yonemura, Chikara Kojima, Xiaoxing Wang, Tetsuya Isshiki, Yasuhiro Itayama
  • Patent number: 10816241
    Abstract: A method for extracting thermal energy in an underground high temperature area of a coalfield fire area, including: determining a thermal extraction target area by a natural potential method and a ground detecting borehole; using an injection borehole to send a gaseous thermal medium to an underground high temperature area of the thermal extraction target area; after the thermal exchange between the gaseous thermal medium and a high temperature coal rock mass, the gaseous thermal medium is extracted through an extraction borehole; continuously monitoring a natural potential of the thermal extraction target area; arranging a casing-type borehole thermal exchanger in a potential anomaly region to complete the thermal exchange between the high temperature coal rocks and a liquid thermal medium; stopping the thermal extraction operations when the temperatures of the extracted gaseous thermal medium and the liquid thermal medium reach 70° C. or below.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: October 27, 2020
    Assignees: CHINA UNIVERSITY OF MINING AND TECHNOLOGY, CHANGZHOU UNIVERSITY
    Inventors: Xiaoxing Zhong, Yan Tang, Fei Hou, He Zhu, Xinhao Zhang, Guangyu Li, Deming Wang
  • Publication number: 20200183393
    Abstract: The present application provides a self-driving vehicle positioning method, an apparatus and a storage medium, where the method includes: obtaining reference data, where the reference data includes: state information and running path information of at least one traffic participant within a preset distance from a self-driving vehicle, and updating positioning information of the self-driving vehicle according to the reference data. In the technical solutions, when a GPS signal is weak, the self-driving vehicle can also update the positioning information in time, thereby ensuring driving safety of the self-driving vehicle, and solving a driving safety problem existing in the self-driving vehicle of the prior art.
    Type: Application
    Filed: December 10, 2019
    Publication date: June 11, 2020
    Inventors: Fan YANG, Xiaoxing ZHU, Shiyu SONG, Zhijie WANG
  • Publication number: 20200182631
    Abstract: The present application provides a method for detecting map error information, an apparatus, a device, a vehicle and a storage medium, where the method includes: acquiring current environmental feature information around a vehicle; and detecting, according to the current environmental feature information and map data, whether the map data is erroneous. Whether the map data is erroneous is detected in real time based on the current environmental feature information during the process of the actual traveling of the vehicle, which improves timeliness and efficiency for the map error detection, thereby the map data can be corrected in time and the traveling safety of the vehicle may be improved.
    Type: Application
    Filed: December 10, 2019
    Publication date: June 11, 2020
    Inventors: Fan YANG, Xiaoxing ZHU, Zhijie WANG, Shiyu SONG
  • Patent number: 10648336
    Abstract: Disclosed is a physical-chemical composite inhibitor for controlling spontaneous combustion of low-rank coal, and methods of preparing and using the same. The composite inhibitor consists of a chelate and attapulgite, the chelate is generated by chelation of proanthocyanidin with calcium chloride. The composite inhibitor has moisture-absorbing and moisture-retaining effect, and can reduce water dissipation at low temperature. A stable oxide insulating layer such as MgO and Al2O3 insulating layer can be formed at high temperature, which can block a coal body from contacting with oxygen. In addition, the composite inhibitor can capture hydroxyl free radicals generated during the chain-cycle reaction and destroy peroxide free radicals, and can also interact with an active moiety in coal to form a stable structure such as ether linkage and hydrogen bonding, thereby achieving permanent inhibition of low-rank coal.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: May 12, 2020
    Assignee: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
    Inventors: Xiaoxing Zhong, Feng Wang, Chen Xia, Botao Qin
  • Publication number: 20200095864
    Abstract: Disclosed is a physical-chemical composite inhibitor for controlling spontaneous combustion of low-rank coal, and methods of preparing and using the same. The composite inhibitor consists of a chelate and attapulgite, the chelate is generated by chelation of proanthocyanidin with calcium chloride. The composite inhibitor has moisture-absorbing and moisture-retaining effect, and can reduce water dissipation at low temperature. A stable oxide insulating layer such as MgO and Al2O3 insulating layer can be formed at high temperature, which can block a coal body from contacting with oxygen. In addition, the composite inhibitor can capture hydroxyl free radicals generated during the chain-cycle reaction and destroy peroxide free radicals, and can also interact with an active moiety in coal to form a stable structure such as ether linkage and hydrogen bonding, thereby achieving permanent inhibition of low-rank coal.
    Type: Application
    Filed: December 4, 2017
    Publication date: March 26, 2020
    Inventors: Xiaoxing ZHONG, Feng WANG, Chen XIA, Botao QIN
  • Publication number: 20190346180
    Abstract: A method for extracting thermal energy in an underground high temperature area of a coalfield fire area, including: determining a thermal extraction target area by a natural potential method and a ground detecting borehole; using an injection borehole to send a gaseous thermal medium to an underground high temperature area of the thermal extraction target area; after the thermal exchange between the gaseous thermal medium and a high temperature coal rock mass, the gaseous thermal medium is extracted through an extraction borehole; continuously monitoring a natural potential of the thermal extraction target area; arranging a casing-type borehole thermal exchanger in a potential anomaly region to complete the thermal exchange between the high temperature coal rocks and a liquid thermal medium; stopping the thermal extraction operations when the temperatures of the extracted gaseous thermal medium and the liquid thermal medium reach 70° C. or below.
    Type: Application
    Filed: May 4, 2017
    Publication date: November 14, 2019
    Applicant: China University of Mining and Technology
    Inventors: Xiaoxing ZHONG, Yan TANG, Xinhao ZHANG, Guangyu LI, Deming WANG
  • Publication number: 20180277742
    Abstract: A piezoelectric element has a diaphragm, a first electrode on the diaphragm, a piezoelectric layer on the first electrode, and a second electrode on the piezoelectric layer. The piezoelectric layer is a stack of multiple piezoelectric films and is made of a perovskite composite oxide containing lead, zirconium, and titanium and represented by the general formula ABO3, with the molar ratio of the A-site to the B-site (A/B) in the perovskite composite oxide being 1.14 or more and 1.22 or less. In current-time curve measurement, the activation energy calculated from relaxation current using an Arrhenius plot is 0.6 [eV] or less. The relaxation current is the amount of current at the time at which a downward trend in current turns upward.
    Type: Application
    Filed: March 14, 2018
    Publication date: September 27, 2018
    Inventors: Takayuki YONEMURA, Chikara KOJIMA, Xiaoxing WANG, Tetsuya ISSHIKI, Yasuhiro ITAYAMA
  • Publication number: 20180217561
    Abstract: A solar cell device includes an information display, a protective substrate that protects an information display surface of the information display, and a photoelectric conversion element. The photoelectric conversion element is disposed on a surface of the protective substrate. The surface faces the information display surface of the information display. The photoelectric conversion element includes a first electrode including a transparent electrode material, a second electrode including a transparent electrode material, a photoelectric conversion layer disposed between the first electrode and the second electrode and including an organic-inorganic perovskite compound, an electron transport layer, disposed between the first electrode and the photoelectric conversion layer, and a hole transport layer, disposed between the photoelectric conversion layer and the second electrode.
    Type: Application
    Filed: January 17, 2018
    Publication date: August 2, 2018
    Inventors: Tetsuya Isshiki, Xiaoxing Wang
  • Patent number: 9502637
    Abstract: A piezoelectric material is expressed as a mixed crystal including a first component formed of a complex oxide having a perovskite structure and a rhombohedral structure and containing Bi in an A-site and Fe in a B-site, a second component formed of a complex oxide having a perovskite structure and a tetragonal structure and containing Ba in an A-site and Ti in a B-site, and a third component formed of a complex oxide having a perovskite structure and a tetragonal structure and containing Bi and K in an A-site and Ti in a B-site.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: November 22, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Xiaoxing Wang
  • Patent number: 9387470
    Abstract: The invention relates to novel bimetallic and trimetallic catalysts, their manufacture and use in both steam reforming and oxidative steam reforming of liquid fuels such as jet fuels, diesel fuels and gasoline to produce synthesis gas and/or hydrogen for fuel cell applications. The invention further relates to manufacture of synthesis gas and/or hydrogen gas for chemicals synthesis and fuel processing. The catalysts have high sulfur tolerance and carbon resistance when used in steam reforming and/or oxidative steam reforming of heavy hydrocarbon fuels.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: July 12, 2016
    Assignee: The Penn State Research Foundation
    Inventors: Chunshan Song, James J. Strohm, Jian Zheng, Weidong Gu, Chao Xie, Xiaoxing Wang
  • Patent number: 9318690
    Abstract: A piezoelectric element is provided. The piezoelectric element includes a piezoelectric layer made of a perovskite compound containing sodium, potassium, lithium, niobium and tantalum and bismuth manganate. The piezoelectric element may also include electrodes for applying a voltage to the piezoelectric layer. The piezoelectric layer may contain 0.25 to 1 mol % of bismuth manganate relative to the perovskite ceramics.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: April 19, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Xiaoxing Wang
  • Patent number: 9257634
    Abstract: A piezoelectric element 300 includes a first electrode 60, a piezoelectric layer 70 which is provided on the first electrode, and a second electrode 80 which is provided on the piezoelectric layer, and the piezoelectric layer is made of a piezoelectric material expressed as a mixed crystal including a first component formed of a complex oxide containing Bi and Fe and having a rhombohedral perovskite structure and a complex oxide containing Ba and Ti and having a tetragonal perovskite structure, a second component formed of a complex oxide containing Bi, K, and Ti and having a tetragonal perovskite structure, and a third component formed of a complex oxide containing Bi, Mg, and Ti and having a rhombohedral perovskite structure.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: February 9, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Xiaoxing Wang
  • Publication number: 20150364675
    Abstract: A piezoelectric element includes a first electrode, a piezoelectric layer which is provided on the first electrode, and a second electrode which is provided on the piezoelectric layer, and the piezoelectric layer is made of a piezoelectric material expressed as a mixed crystal including a first component formed of a complex oxide containing Bi and Fe and having a rhombohedral perovskite structure and a complex oxide containing Ba and Ti and having a tetragonal perovskite structure, a second component formed of a complex oxide containing Bi, K, and Ti and having a tetragonal perovskite structure, and a third component formed of a complex oxide containing Bi, Mg, and Ti and having a rhombohedral perovskite structure.
    Type: Application
    Filed: June 5, 2015
    Publication date: December 17, 2015
    Inventor: Xiaoxing WANG
  • Publication number: 20150357553
    Abstract: A piezoelectric material is expressed as a mixed crystal including a first component formed of a complex oxide having a perovskite structure and a rhombohedral structure and containing Bi in an A-site and Fe in a B-site, a second component formed of a complex oxide having a perovskite structure and a tetragonal structure and containing Ba in an A-site and Ti in a B-site, and a third component formed of a complex oxide having a perovskite structure and a tetragonal structure and containing Bi and K in an A-site and Ti in a B-site.
    Type: Application
    Filed: June 4, 2015
    Publication date: December 10, 2015
    Inventor: Xiaoxing WANG
  • Patent number: 9209384
    Abstract: A piezoelectric element comprises a piezoelectric layer made of a perovskite compound containing sodium, potassium, lithium, niobium and tantalum and bismuth manganate and electrodes for applying a voltage to the piezoelectric layer.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: December 8, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Xiaoxing Wang
  • Publication number: 20150200352
    Abstract: A piezoelectric element comprises a piezoelectric layer made of a perovskite compound containing sodium, potassium, lithium, niobium and tantalum and bismuth manganate and electrodes for applying a voltage to the piezoelectric layer.
    Type: Application
    Filed: March 26, 2015
    Publication date: July 16, 2015
    Inventor: Xiaoxing WANG
  • Patent number: 8919933
    Abstract: A liquid ejecting head includes a piezoelectric element including a first electrode, a seed layer provided on the first electrode and containing BiFeO3 with (001) plane preferential orientation, a piezoelectric layer provided on the seed layer and containing a perovskite-structure (Bi, Nd)(Fe, Mn, Al)O3 composition with (001) plane preferential orientation, and a second electrode provided on the piezoelectric layer.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: December 30, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Xiaoxing Wang