Patents by Inventor Jiahuai Zhou

Jiahuai Zhou 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).

  • Front-end structure for access network line card
    Patent number: 7840988
    Abstract: A technique is described for facilitating communication in access networks such as cable networks. One aspect of the present invention is directed to an improved line card configuration which may be used to provide upstream channel “high availability” protection whereby the cable modems of a failed upstream channel may be immediately and dynamically reassigned to an alternate upstream channel in order to minimize service disruption. Another aspect of the present invention is directed to an improved line card configuration which is able to provide load balancing capabilities across multiple upstream channels associated with one or more line cards. According to a specific implementation, such load balancing capabilities may be used to reassign cable modems (which are physically connected to a fixed upstream port) to alternate upstream channels. Yet another aspect of the present invention is directed to an improved line card configuration which is able to provide the feature of virtual cabling.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: November 23, 2010
    Assignee: Cisco Technology, Inc.
    Inventor: Jiahuai Zhou
  • Combined electro-mechanical and solid state switching fabric
    Patent number: 7599285
    Abstract: According to the present invention, methods and apparatus are provided to allow efficient switching of cable lines from failed line cards to protect line cards. Line cards may be arranged in multiple protect and active groups supporting both upstream and downstream transmission frequencies. A combined electromechanical and solid state switching fabric is provided to efficiently allow reassignment of cable lines to line cards.
    Type: Grant
    Filed: November 3, 2003
    Date of Patent: October 6, 2009
    Assignee: Cisco Technology, Inc.
    Inventors: Jiahuai Zhou, Rick Meller
  • Combined electro-mechanical and solid state switching fabric
    Publication number: 20050094553
    Abstract: According to the present invention, methods and apparatus are provided to allow efficient switching of cable lines from failed line cards to protect line cards. Line cards may be arranged in multiple protect and active groups supporting both upstream and downstream transmission frequencies. A combined electromechanical and solid state switching fabric is provided to efficiently allow reassignment of cable lines to line cards.
    Type: Application
    Filed: November 3, 2003
    Publication date: May 5, 2005
    Applicant: Cisco Technology, Inc.
    Inventors: Jiahuai Zhou, Rick Meller