Patents by Inventor Jiantao Zhao

Jiantao Zhao 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: 12211381
    Abstract: A method and apparatus for prompting navigation information. The method includes: acquiring, when a user is in an underground vehicle area, traffic behavior statuses of an underground vehicle at stops on a preset navigation route; determining, in response to the traffic behavior status of each stop of adjacent stops on the navigation route being consistent with a first preset traffic behavior status, a base station corresponding to a latter stop in the adjacent stops as a reference station; determining a location of a preset stop on the navigation route, based on a location of the reference station and locations of base stations provided at the stops; and outputting, in response to the traffic behavior status of the underground vehicle at the preset stop being consistent with a second preset traffic behavior status, prompt information for getting off.
    Type: Grant
    Filed: April 22, 2022
    Date of Patent: January 28, 2025
    Assignee: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.
    Inventors: Yuzhe Wang, Jiantao Zhao
  • Publication number: 20220246032
    Abstract: A method and apparatus for prompting navigation information. The method includes: acquiring, when a user is in an underground vehicle area, traffic behavior statuses of an underground vehicle at stops on a preset navigation route; determining, in response to the traffic behavior status of each stop of adjacent stops on the navigation route being consistent with a first preset traffic behavior status, a base station corresponding to a latter stop in the adjacent stops as a reference station; determining a location of a preset stop on the navigation route, based on a location of the reference station and locations of base stations provided at the stops; and outputting, in response to the traffic behavior status of the underground vehicle at the preset stop being consistent with a second preset traffic behavior status, prompt information for getting off.
    Type: Application
    Filed: April 22, 2022
    Publication date: August 4, 2022
    Inventors: Yuzhe WANG, Jiantao ZHAO
  • Patent number: 9806484
    Abstract: A radial polarization disk laser, including a pumping source, a collimator lens, a focusing lens, a laser gain medium, a Brewster axial cone, and a output lens, which are sequentially arranged along a laser light path. An angle formed between the conical surface and the bottom surface of said Brewster axial cone is a Brewster's angle. Said laser gain medium is bonded with said bottom surface; said laser gain medium and said output lens form a laser harmonic oscillator cavity therebetween. The pumped laser light emitted by said pumping source passes through said collimator lens and said focusing lens, then is focused on the laser gain medium, and. the generated photons oscillate in said laser harmonic oscillator cavity, and then a radial polarized laser beam is finally output by said output lens.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: October 31, 2017
    Assignees: HAN'S LASER TECHNOLOGY INDUSTRY GROUP CO., LTD., HAN'S CNC TECHNOLOGY CO., LTD.
    Inventors: Lei Xiao, Chengwan Gong, Jiantao Zhao, Jinbin Yang, Yanhua Ning, Yunfeng Gao
  • Patent number: 9640935
    Abstract: A radially polarized thin disk laser comprises a pumping source (10), a collimating lens (20), a focusing lens (30), a laser gain medium (50), a heat dissipating medium (55), a Brewster biaxial cone (60), and an output lens (70) which are arranged in sequence along the laser light path. The Brewster biaxial cone (60) comprises two opposite cones and a cylinder connecting the two cones. The angles between the conical surfaces (S5,S7) and bottom surfaces of the cones are the Brewster angle. The laser gain medium (50) is bonded to the heat dissipating medium (55). A laser sub-resonator is formed between the laser gain medium (50) and the output lens (70). After passing through the collimating lens (20) and the focusing lens (30), the pumping laser beam emitted from the pumping source (10) is focused on the laser gain medium (50), then the generated photons resonate in the laser sub-resonator and finally a radially polarized laser beam is outputted from the output lens (70).
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: May 2, 2017
    Assignees: HAN'S LASER TECHNOLOGY INDUSTRY GROUP CO., LTD., HAN'S CNC TECHNOLOGY CO., LTD.
    Inventors: Lei Xiao, Chengwan Gong, Jiantao Zhao, Jinbin Yang, Yanhua Ning, Yunfeng Gao
  • Publication number: 20160285225
    Abstract: A radial polarization disk laser, including a pumping source, a collimator lens, a focusing lens, a laser gain medium, a Brewster axial cone, and a output lens, which are sequentially arranged along a laser light path. An angle formed between the conical surface and the bottom surface of said Brewster axial cone is a Brewster's angle. Said laser gain medium is bonded with said bottom surface; said laser gain medium and said output lens form a laser harmonic oscillator cavity therebetween. The pumped laser light emitted by said pumping source passes through said collimator lens and said focusing lens, then is focused on the laser gain medium, and. the generated photons oscillate in said laser harmonic oscillator cavity, and then a radial polarized laser beam is finally output by said output lens.
    Type: Application
    Filed: November 22, 2013
    Publication date: September 29, 2016
    Inventors: Lei Xiao, Chengwan Gong, Jiantao Zhao, Jinbin Yang, Yanhua Ning, Yunfeng Gao
  • Publication number: 20160276795
    Abstract: A radially polarized thin disk laser comprises a pumping source (10), a collimating lens (20), a focusing lens (30), a laser gain medium (50), a heat dissipating medium (55), a Brewster biaxial cone (60), and an output lens (70) which are arranged in sequence along the laser light path. The Brewster biaxial cone (60) comprises two opposite cones and a cylinder connecting the two cones. The angles between the conical surfaces (S5,S7) and bottom surfaces of the cones are the Brewster angle. The laser gain medium (50) is bonded to the heat dissipating medium (55). A laser sub-resonator is formed between the laser gain medium (50) and the output lens (70). After passing through the collimating lens (20) and the focusing lens (30), the pumping laser beam emitted from the pumping source (10) is focused on the laser gain medium (50), then the generated photons resonate in the laser sub-resonator and finally a radially polarized laser beam is outputted from the output lens (70).
    Type: Application
    Filed: November 22, 2013
    Publication date: September 22, 2016
    Inventors: Lei Xiao, Chengwan Gong, Jiantao Zhao, Jinbin Yang, Yanhua Ning, Yunfeng Gao
  • Publication number: 20140054503
    Abstract: A method of upgrading coal is disclosed, the method comprising: subjecting the coal to a hydrothermal dewatering process at a temperature and a pressure above ambient conditions to produce dewatered coal; removing ash tailings from the dewatered coal to produced reduced ash dewatered coal; and producing a coal water slurry with the reduced ash dewatered coal. An apparatus for upgrading coal is also disclosed, the apparatus comprising: a hydrothermal dewatering reactor connected to receive coal and output dewatered coal; an ash separator connected to receive dewatered coal from the hydrothermal dewatering reactor and output reduced ash dewatered coal; a slurrifier connected to receive reduced ash dewatered coal from the ash separator and output a coal water slurry.
    Type: Application
    Filed: August 27, 2012
    Publication date: February 27, 2014
    Applicant: THE GOVERNORS OF THE UNIVERSITY OF ALBERTA
    Inventors: Qingxia Liu, Jiantao Zhao, Moshfiqur Rahman, Rajender Gupta, Zhenghe Xu