Patents by Inventor Jimmy Che-Kin Leung

Jimmy Che-Kin Leung 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).

  • Magnetic switch for automatic network traffic shutdown while unlocking network line card
    Patent number: 8260997
    Abstract: In one embodiment, a method comprises initiating shutdown of network traffic of a line card while the line card is coupled to a connector chassis and exchanging network traffic, the initiating shutdown in response to actuation of a magnetic switch associated with the line card, the magnetic switch being actuated in response to movement of actuating structure that unlocks the line card for removal from the connector chassis; and completing the shutdown of network traffic in the line card prior to permitting complete removal of the line card from the connector chassis.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: September 4, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Frans Kusnadi, Jimmy Che-Kin Leung, Mandy Hin Lam
  • Minimal intrusion EMI shielding clip to maintain electrical contact between two parallel surfaces
    Patent number: 6283770
    Abstract: An apparatus for providing EMI shielding. A conductive clip has a first jaw and a second jaw with an elbow between. The first jaw has a major surface with a detent formed on the major surface and defining a discontinuity in the major surface. The second jaw forms a contact hump disposed along the second jaw between two contact segments.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: September 4, 2001
    Assignee: Cisco Technology, Incc.
    Inventors: Jimmy Che-Kin Leung, Scott A. Eastman, Douglas J. Hurst