Patents by Inventor Yingchun Shu

Yingchun Shu 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: 11948728
    Abstract: In one embodiment, an apparatus includes an array of transformers and common mode chokes each comprising a magnetic core and windings wound around the magnetic core at opposing locations on the magnetic core, and a retaining groove on each of the magnetic cores to maintain the windings in their opposing locations on the magnetic core. The transformers and common mode chokes are positioned in the array with the windings on each of the magnetic cores located offset to the windings of adjacent magnetic cores in the array to reduce crosstalk and improve common mode noise rejection.
    Type: Grant
    Filed: March 4, 2021
    Date of Patent: April 2, 2024
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Jianquan Lou, Xiaoxia Zhou, Hailong Zhang, Yingchun Shu, Alpesh U. Bhobe
  • Publication number: 20210193377
    Abstract: In one embodiment, an apparatus includes an array of transformers and common mode chokes each comprising a magnetic core and windings wound around the magnetic core at opposing locations on the magnetic core, and a retaining groove on each of the magnetic cores to maintain the windings in their opposing locations on the magnetic core. The transformers and common mode chokes are positioned in the array with the windings on each of the magnetic cores located offset to the windings of adjacent magnetic cores in the array to reduce crosstalk and improve common mode noise rejection.
    Type: Application
    Filed: March 4, 2021
    Publication date: June 24, 2021
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Jianquan Lou, Xiaoxia Zhou, Hailong Zhang, Yingchun Shu, Alpesh U. Bhobe
  • Patent number: 10971299
    Abstract: In one embodiment, an apparatus includes a plurality of transformers and a plurality of common mode chokes, each of the transformers and the common mode chokes comprising a magnetic core and windings wound around the magnetic core at generally opposite sides thereof. The transformers and common mode chokes are arranged in an array with the windings on each of the magnetic cores positioned generally orthogonal to the windings of adjacent magnetic cores in the array to reduce crosstalk and improve common mode noise rejection.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: April 6, 2021
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Jianquan Lou, Xiaoxia Zhou, Hailong Zhang, Yingchun Shu, Alpesh U. Bhobe
  • Publication number: 20190156993
    Abstract: In one embodiment, an apparatus includes a plurality of transformers and a plurality of common mode chokes, each of the transformers and the common mode chokes comprising a magnetic core and windings wound around the magnetic core at generally opposite sides thereof. The transformers and common mode chokes are arranged in an array with the windings on each of the magnetic cores positioned generally orthogonal to the windings of adjacent magnetic cores in the array to reduce crosstalk and improve common mode noise rejection.
    Type: Application
    Filed: November 21, 2017
    Publication date: May 23, 2019
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Jianquan Lou, Xiaoxia Zhou, Hailong Zhang, Yingchun Shu, Alpesh U. Bhobe
  • Patent number: 9980417
    Abstract: An electromagnetic interference (EMI) gasket is provided that includes a resiliently-flexible and conductive outer shell, a cushioning element disposed in the outer shell, and at least one magnetic component disposed in the outer shell configured to magnetically couple to a conductive surface of an electronic device chassis.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: May 22, 2018
    Assignee: Cisco Technology, Inc.
    Inventors: Feng Ji, Jianquan Lou, Chen Peng, Alpesh U. Bhobe, Yingchun Shu, Jinghan Yu, Li Xiaogang
  • Patent number: 9905354
    Abstract: An electrical device includes a core structure having a first core section, a second core section, and a third core section. The electrical device further includes a first coil electrically coupled to the first core section and the second core section to form a choke and a primary winding of a transformer. The choke is configured to reduce common mode noise for an electrical signal received by the electrical device, and the primary winding of the transformer is configured to induce a magnetic field on the third core section. The electrical device also includes a second coil electrically coupled to the third core section, which forms a secondary winding of the transformer and receives electromagnetic energy from the magnetic field induced by the primary winding of the transformer.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: February 27, 2018
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Jianquan Lou, Quanhui Sun, Xiaoxia Zhou, Alpesh U. Bhobe, Jinghan Yu, Yingchun Shu
  • Patent number: 9876319
    Abstract: A shield is described for minimizing leakage of electromagnetic waves from a connector/chassis interface. The shield includes a conductive strip sized to at least partially surround an aperture in a chassis, where the chassis receives a connector port assembly through the aperture. The conductive strip includes an outer portion affixed to an interior surface of the chassis, and an inner portion able to be manipulated to at least partially cover one or more gaps between the connector port assembly and the chassis.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: January 23, 2018
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Huasheng Zhao, Zheng Yin, Hongmei Fan, Yingchun Shu, Jinghan Yu, Alpesh Bhobe
  • Publication number: 20170178783
    Abstract: An electrical device includes a core structure having a first core section, a second core section, and a third core section. The electrical device further includes a first coil electrically coupled to the first core section and the second core section to form a choke and a primary winding of a transformer. The choke is configured to reduce common mode noise for an electrical signal received by the electrical device, and the primary winding of the transformer is configured to induce a magnetic field on the third core section. The electrical device also includes a second coil electrically coupled to the third core section, which forms a secondary winding of the transformer and receives electromagnetic energy from the magnetic field induced by the primary winding of the transformer.
    Type: Application
    Filed: December 18, 2015
    Publication date: June 22, 2017
    Inventors: Jianquan Lou, Quanhui Sun, Xiaoxia Zhou, Alpesh U. Bhobe, Jinghan Yu, Yingchun Shu
  • Patent number: 9525242
    Abstract: Presented herein is a modular connector with electromagnetic interference suppression. The modular connector includes a substrate, at least one set of spring pins, and a ferrite component. Each spring in the at least one set of springs includes a first portion adjacent the substrate and a second portion extending away from the substrate. The ferrite component surrounds the at least one set of spring pins, couples the at least one set of spring pins to the substrate, and is configured to suppress electromagnetic interference.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: December 20, 2016
    Assignee: Cisco Technology, Inc.
    Inventors: Jianquan Lou, Hongmei Fan, Quanhui Sun, Shun Li, Alpesh U. Bhobe, Jinghan Yu, Yingchun Shu
  • Publication number: 20160006184
    Abstract: A shield is described for minimizing leakage of electromagnetic waves from a connector/chassis interface. The shield includes a conductive strip sized to at least partially surround an aperture in a chassis, where the chassis receives a connector port assembly through the aperture. The conductive strip includes an outer portion affixed to an interior surface of the chassis, and an inner portion able to be manipulated to at least partially cover one or more gaps between the connector port assembly and the chassis.
    Type: Application
    Filed: July 8, 2014
    Publication date: January 7, 2016
    Inventors: Huasheng Zhao, Zheng Yin, Hongmei Fan, Yingchun Shu, Jinghan Yu, Alpesh Bhobe