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: 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: 10608014
    Abstract: A battery management chip circuit on the basis of an SOI process. The battery management chip circuit comprises a high-voltage multiplexer MUX, a voltage reference circuit, a Sigma-delta ADC (comprising an analog modulator and a digital filter), an SPI communication circuit, a function control circuit and a voltage value register. The battery management chip circuit is integrated on the basis of an SOI high-voltage process, and particularly, high-voltage MOS transistors adopted by the battery management chip circuit are high-voltage MOS device units on the basis of the SOI process. In addition, the present invention highlights the design of interface circuit-chopper circuit of the high-voltage multiplexer MUX and the Sigma-delta ADC, so as to describe the advantages such as decrease of difficulty of circuit design and reduction of layout area brought about when the present invention adopts the SOI process design and tape-out.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: March 31, 2020
    Assignee: SHANGHAI INSTITUTE OF MICROSYSTEM AND INFORMATION TECHNOLOGY, CHINESE ACADEMY OF SCIENCES
    Inventors: Xinhong Cheng, Xinchang Li, Zhonghao Wu, Dawei Xu, Yuehui Yu
  • 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: 20190296625
    Abstract: A rotor of an electric motor includes a rotating shaft, a rotor core and a commutator fixed to the rotating shaft, and a first sleeve, a second sleeve and a third sleeve arranged around the rotating shaft. The first sleeve is located on a side of the rotor core away from the commutator and abuts against the rotor core, the second sleeve is located between the rotor core and the commutator, and the third sleeve is located on a side of the commutator away from the rotor core.
    Type: Application
    Filed: March 20, 2019
    Publication date: September 26, 2019
    Inventors: Jingxin SHI, Sijun ZHAO, Luyan BI, Pingman ZHANG, Xionghui LIU, Lang DAI, Cong LV, Feifei HUANG, He CHI, Baoqiang CHENG, Seungpun HO, Dawei ZHOU, Zhijun LI, Zhiyu CHEN
  • 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: 20190157299
    Abstract: A battery management chip circuit on the basis of an SOI process. The battery management chip circuit comprises a high-voltage multiplexer MUX, a voltage reference circuit, a Sigma-delta ADC (comprising an analog modulator and a digital filter), an SPI communication circuit, a function control circuit and a voltage value register. The battery management chip circuit is integrated on the basis of an SOI high-voltage process, and particularly, high-voltage MOS transistors adopted by the battery management chip circuit are high-voltage MOS device units on the basis of the SOI process. In addition, the present invention highlights the design of interface circuit-chopper circuit of the high-voltage multiplexer MUX and the Sigma-delta ADC, so as to describe the advantages such as decrease of difficulty of circuit design and reduction of layout area brought about when the present invention adopts the SOI process design and tape-out.
    Type: Application
    Filed: July 1, 2016
    Publication date: May 23, 2019
    Applicant: SHANGHAI INSTITUTE OF MICROSYSTEM AND INFORMATION TECHNOLOGY, CHINESE ACADEMY OF SCIENCES
    Inventors: XINHONG CHENG, XINCHANG LI, ZHONGHAO WU, DAWEI XU, YUEHUI YU
  • 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