Patents by Inventor Zicheng Yang

Zicheng Yang 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: 12328637
    Abstract: A method for determining that a terminal device is located inside a geofence includes obtaining, based on a positioning library, a first geographical location corresponding to communication access information of the terminal device. If a location relationship between the first geographical location and the geofence meets a first preset condition, starting a positioning module to obtain a second geographical location of the terminal device and determining, based on the second geographical location, that the terminal device is located inside the geofence.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: June 10, 2025
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Weibo Hou, Zicheng Yang, Gelin Ren, Haimou Shi, Xiang Min, Shuai Wang, Zhenguo Zhou
  • Publication number: 20230289199
    Abstract: In a method for starting an application, a first device determines a relative location relationship between the first device and a second device; and the first device starts a target application based on the relative location relationship.
    Type: Application
    Filed: July 30, 2021
    Publication date: September 14, 2023
    Inventors: Weibo Hou, Shuai Wang, Zicheng Yang, Xiang Min
  • Publication number: 20220191641
    Abstract: A method for determining that a terminal device is located inside a geofence includes obtaining, based on a positioning library, a first geographical location corresponding to communication access information of the terminal device. If a location relationship between the first geographical location and the geofence meets a first preset condition, starting a positioning module to obtain a second geographical location of the terminal device and determining, based on the second geographical location, that the terminal device is located inside the geofence.
    Type: Application
    Filed: March 25, 2019
    Publication date: June 16, 2022
    Inventors: Weibo Hou, Zicheng Yang, Gelin Ren, Haimou Shi, Xiang Min, Shuai Wang, Zhenguo Zhou
  • Patent number: 8841607
    Abstract: An atmospheric pressure ion source, employing the principle of electrospray ionization, chemical ionization, or photo-ionization, comprises a spray probe for spraying a liquid into an ionization chamber and has an exhaust port through which residual spray mist and waste gas, such as evaporated solvent, are extracted. The ion source further comprises an exhaust system comprising a conduit which is connected to the exhaust port. The conduit has a transition from a first cross-section to a second cross section at a point downstream of the exhaust port wherein the second cross section is reduced in relation to the first cross section. Gas is injected via a gas injector into the conduit in a region of the transition to create a low pressure region that removes unwanted material from the chamber.
    Type: Grant
    Filed: September 3, 2012
    Date of Patent: September 23, 2014
    Assignee: Bruker Daltonics, Inc.
    Inventors: Zicheng Yang, Roy P Moeller, Stephen Zanon
  • Publication number: 20140061500
    Abstract: An atmospheric pressure ion source, employing the principle of electrospray ionization, chemical ionization, or photo-ionization, comprises a spray probe for spraying a liquid into an ionization chamber and has an exhaust port through which residual spray mist and waste gas, such as evaporated solvent, are extracted. The ion source further comprises an exhaust system comprising a conduit which is connected to the exhaust port. The conduit has a transition from a first cross-section to a second cross section at a point downstream of the exhaust port wherein the second cross section is reduced in relation to the first cross section. Gas is injected via a gas injector into the conduit in a region of the transition to create a low pressure region that removes unwanted material from the chamber.
    Type: Application
    Filed: September 3, 2012
    Publication date: March 6, 2014
    Applicant: BRUKER DALTONICS, INC.
    Inventors: Zicheng YANG, Roy P. MOELLER, Stephen ZANON
  • Patent number: 7145136
    Abstract: An apparatus for use in atmospheric pressure ionization includes a sample receiving chamber, a sample droplet source communicating with the sample receiving chamber, an outlet conduit, and a boundary. The outlet conduit defines a sampling orifice that communicates with the sample receiving chamber. The boundary is interposed between the sample receiving chamber and the sampling orifice and comprises an opening. The opening defines a first passage through which a drying gas is flowable into the sample receiving chamber in an elongated flow profile, and a second passage through which sample material is flowable from the sample receiving chamber toward the sampling orifice. The first passage is positioned in non-coaxial relation to the second passage. The first passage is configured to introduce the elongated flow profile of the drying gas into a pathway of droplets of the sample material flowing toward the second passage.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: December 5, 2006
    Assignee: Varian, Inc.
    Inventors: Zicheng Yang, Roger C. Tong
  • Publication number: 20060131497
    Abstract: An apparatus for use in atmospheric pressure ionization includes a sample receiving chamber, a sample droplet source communicating with the sample receiving chamber, an outlet conduit, and a boundary. The outlet conduit defines a sampling orifice that communicates with the sample receiving chamber. The boundary is interposed between the sample receiving chamber and the sampling orifice and comprises an opening. The opening defines a first passage through which a drying gas is flowable into the sample receiving chamber in an elongated flow profile, and a second passage through which sample material is flowable from the sample receiving chamber toward the sampling orifice. The first passage is positioned in non-coaxial relation to the second passage. The first passage is configured to introduce the elongated flow profile of the drying gas into a pathway of droplets of the sample material flowing toward the second passage.
    Type: Application
    Filed: December 17, 2004
    Publication date: June 22, 2006
    Inventors: Zicheng Yang, Roger Tong