Patents by Inventor Yu-Cheng Shao

Yu-Cheng Shao 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: 8305896
    Abstract: In an example embodiment, a method for selective performance enhancement of traffic flows, such as a Transmission Control Protocol (TCP) flow, on devices where enhancement of a limited number of concurrent flows is supported, or where a limited number of TCP accelerated or IP (Internet Protocol) compressed flows are supported. Flows are selected to be enhanced, accelerated or compressed based on configured priorities, including but not limited to type of the flow, importance of the flow, and availability of resources to enhance, accelerate or compress the flow. For example, a high-priority TCP session is accelerated for the lifetime of the session, while a low-priority TCP session is accelerated while there are available resources for the low-priority flow.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: November 6, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Lloyd Harvey Wood, Kenneth Durazzo, Yu-Cheng Shao, Daniel John Floreani
  • Patent number: 7778229
    Abstract: Methods and apparatus for initiating the release of an IP address allocated for use by a Mobile Node supporting Mobile IP are disclosed. The IP address may be a collocated care-of address or a dynamically assigned home address. The release of the IP address may be initiated by the Home Agent based upon information it has received in a registration request or, alternatively, may be initiated by the Home Agent in response to a de-registration request. In this manner, a Home Agent may initiate the release of an IP address that is no longer in use by a Mobile Node.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: August 17, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Mark Denny, Yu-Cheng Shao
  • Patent number: 7626963
    Abstract: Methods and apparatus for dynamically generating a set of Mobile IP keys are disclosed. The set of Mobile IP keys is dynamically generated using an existing HLR/AuC authentication infrastructure. This is accomplished, in part, by obtaining an International Mobile Subscriber Identity (IMSI) that uniquely identifies a particular Mobile Node. Once a set of Mobile IP keys is generated from authentication information associated with the IMSI, the Mobile Node may register with its Home Agent using the set of Mobile IP keys.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: December 1, 2009
    Assignee: Cisco Technology, Inc.
    Inventors: Alpesh S. Patel, Kent K. Leung, Joseph A. Salowey, Yu-Cheng Shao
  • Publication number: 20090109849
    Abstract: In an example embodiment, a method for selective performance enhancement of traffic flows, such as a Transmission Control Protocol (TCP) flow, on devices where enhancement of a limited number of concurrent flows is supported, or where a limited number of TCP accelerated or IP (Internet Protocol) compressed flows are supported. Flows are selected to be enhanced, accelerated or compressed based on configured priorities, including but not limited to type of the flow, importance of the flow, and availability of resources to enhance, accelerate or compress the flow. For example, a high-priority TCP session is accelerated for the lifetime of the session, while a low-priority TCP session is accelerated while there are available resources for the low-priority flow.
    Type: Application
    Filed: October 31, 2007
    Publication date: April 30, 2009
    Inventors: Lloyd Harvey WOOD, Kenneth Durazzo, Yu-Cheng Shao, Daniel John Floreani
  • Publication number: 20070091843
    Abstract: Methods and apparatus for dynamically generating a set of Mobile IP keys are disclosed. The set of Mobile IP keys is dynamically generated using an existing HLR/AuC authentication infrastructure. This is accomplished, in part, by obtaining an International Mobile Subscriber Identity (IMSI) that uniquely identifies a particular Mobile Node. Once a set of Mobile IP keys is generated from authentication information associated with the IMSI, the Mobile Node may register with its Home Agent using the set of Mobile IP keys.
    Type: Application
    Filed: October 25, 2005
    Publication date: April 26, 2007
    Inventors: Alpesh Patel, Kent Leung, Joseph Salowey, Yu-Cheng Shao
  • Publication number: 20070025305
    Abstract: Methods and apparatus for initiating the release of an IP address allocated for use by a Mobile Node supporting Mobile IP are disclosed. The IP address may be a collocated care-of address or a dynamically assigned home address. The release of the IP address may be initiated by the Home Agent based upon information it has received in a registration request or, alternatively, may be initiated by the Home Agent in response to a de-registration request. In this manner, a Home Agent may initiate the release of an IP address that is no longer in use by a Mobile Node.
    Type: Application
    Filed: July 29, 2005
    Publication date: February 1, 2007
    Inventors: Mark Denny, Yu-Cheng Shao