Patents by Inventor Dawei CHENG

Dawei CHENG 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: 11933282
    Abstract: An inductive plasma acceleration apparatus, comprising a pulse laser assembly, a pulsed discharge assembly, an exciting coil assembly, a solid-state working medium, and a control assembly; the exciting coil assembly is electrically connected to the pulsed discharge assembly such that a strong pulse current is produced in the exciting coil assembly during the discharge process of the pulse discharge assembly, and an inductive pulse electromagnetic field is excited around the exciting coil assembly; the solid-state working medium is positioned on the optical path of a pulse laser emitted by the pulse laser assembly such that the solid-state working medium produces a pulse gas under the ablation action of the pulse laser, and the inductive pulse electromagnetic field is positioned on the circulation gas path of the pulse gas such that the pulse gas can enter the inductive pulse electromagnetic field.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: March 19, 2024
    Assignee: NATIONAL UNIVERSITY OF DEFENSE TECHNOLOGY
    Inventors: Xiaokang Li, Mousen Cheng, Jianjun Wu, Bixuan Che, Moge Wang, Dawei Guo, Xiong Yang
  • Patent number: 10837546
    Abstract: The present disclosure discloses a sensing system for sensing a position of a gear shaft. In the present disclosure, a magnet apparatus is provided on the gear shaft, where the magnet apparatus includes, along a rectilinear motion direction, a first length region magnet and a second length region magnet, the second length region magnet including a first portion and a second portion, a magnetic field of the second portion of the second length region magnet corresponding to a reverse gear position being different from that of the first length region magnet and that of the first portion of the second length region magnet. An actually induced electrical signal generated by sensing the motion of the magnet apparatus is different from a reference inductive electrical signal of a corresponding position of a reference magnet.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: November 17, 2020
    Assignee: Tyco Electronics (Shanghai) Co. Ltd.
    Inventors: Dawei Cheng, Haizhou Lu
  • Patent number: 10704884
    Abstract: The present disclosure discloses a sensing system for sensing a position of a gear shaft. The present disclosure may implement determination of whether the gear shaft is at a reverse gear position, a forward gear position or a neutral gear position by: partitioning a magnet into a first length region magnet and a second length region magnet, wherein the first length region magnet and the second length region magnet have different magnetic field directions, sensing and generating an inductive electrical signal reflecting motions of the first length region magnet and the second length region magnet; storing, by a memory unit, a first type reference signal for the first length region magnet and a second type reference signal for the second length region magnet, which are sensed by simulation; and comparing, by a processing unit, the inductive electric signal against the first type reference signal and the second type reference signal, which reflect different gear positions, respectively.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: July 7, 2020
    Assignee: Tyco Electronics (Shanghai) Co. Ltd.
    Inventors: Dawei Cheng, Haizhou Lu
  • Patent number: 10465343
    Abstract: An overpass structure with vertical interchange arrangement for crossroads includes a transverse roadway at a bottom level, a pedestrian walkway in the middle level and a longitudinal road bridge at an upper level. The vehicle roadways on and under the bridge are connected by two ramp units. The pedestrian walkway is a pedestrian platform with an interchange platform provided on top. The interchange platform is located between and connected to two roadways of opposite directions on the longitudinal road bridge in the upper level. The leftmost lane along a forward moving direction of vehicle on the bridge in the longitudinal road bridge is defined as a universal lane of the longitudinal road bridge. The rightmost lane along a forward moving direction of vehicle under the bridge in the transverse roadway is defined as a universal lane of the transverse roadway. The interchange platform is connected to four universal lanes.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: November 5, 2019
    Inventors: Dawei Cheng, Haitang Cheng
  • Publication number: 20190177921
    Abstract: An overpass structure with vertical interchange arrangement for crossroads includes a transverse roadway at a bottom level, a pedestrian walkway in the middle level and a longitudinal road bridge at an upper level. The vehicle roadways on and under the bridge are connected by two ramp units. The pedestrian walkway is a pedestrian platform with an interchange platform provided on top. The interchange platform is located between and connected to two roadways of opposite directions on the longitudinal road bridge in the upper level. The leftmost lane along a forward moving direction of vehicle on the bridge in the longitudinal road bridge is defined as a universal lane of the longitudinal road bridge. The rightmost lane along a forward moving direction of vehicle under the bridge in the transverse roadway is defined as a universal lane of the transverse roadway. The interchange platform is connected to four universal lanes.
    Type: Application
    Filed: December 13, 2017
    Publication date: June 13, 2019
    Inventors: Dawei CHENG, Haitang CHENG
  • Publication number: 20180335293
    Abstract: The present disclosure discloses a sensing system for sensing a position of a gear shaft. The present disclosure may implement determination of whether the gear shaft is at a reverse gear position, a forward gear position or a neutral gear position by: partitioning a magnet into a first length region magnet and a second length region magnet, wherein the first length region magnet and the second length region magnet have different magnetic field directions, sensing and generating an inductive electrical signal reflecting motions of the first length region magnet and the second length region magnet; storing, by a memory unit, a first type reference signal for the first length region magnet and a second type reference signal for the second length region magnet, which are sensed by simulation; and comparing, by a processing unit, the inductive electric signal against the first type reference signal and the second type reference signal, which reflect different gear positions, respectively.
    Type: Application
    Filed: May 17, 2018
    Publication date: November 22, 2018
    Applicant: Tyco Electronics (Shanghai) Co. Ltd.
    Inventors: Dawei Cheng, Haizhou Lu
  • Publication number: 20180335131
    Abstract: The present disclosure discloses a sensing system for sensing a position of a gear shaft. In the present disclosure, a magnet apparatus is provided on the gear shaft, where the magnet apparatus includes, along a rectilinear motion direction, a first length region magnet and a second length region magnet, the second length region magnet including a first portion and a second portion, a magnetic field of the second portion of the second length region magnet corresponding to a reverse gear position being different from that of the first length region magnet and that of the first portion of the second length region magnet. An actually induced electrical signal generated by sensing the motion of the magnet apparatus is different from a reference inductive electrical signal of a corresponding position of a reference magnet.
    Type: Application
    Filed: May 18, 2018
    Publication date: November 22, 2018
    Applicant: Tyco Electronics (Shanghai) Co. Ltd.
    Inventors: Dawei Cheng, Haizhou Lu
  • Publication number: 20170227422
    Abstract: The invention provides a method and a system for sensing position of a moving object. A relatively long stroke of a moving object is divided into multiple areas. A sensing element is disposed in each area to sense a magnetic field signal when a magnet apparatus moves along with a moving object and passes through each area, and to generate a sensed signal of each area. A microcontrol unit receives sensed signals of segments and performs temperature compensation and correction on the sensed signals, then combines the sensed signal according to time and a stroke sequence to form a continuous moving-object movement signal that reflects the entire stroke.
    Type: Application
    Filed: February 3, 2017
    Publication date: August 10, 2017
    Inventor: Dawei CHENG