Patents by Inventor Stephen DeGroote

Stephen DeGroote 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).

  • Encoding a TCP offload engine within FCP
    Patent number: 7949792
    Abstract: The present invention defines a new protocol for communicating with an offload engine that provides Transmission Control Protocol (“TCP”) termination over a Fibre Channel (“FC”) fabric. The offload engine terminates all protocols up to and including TCP and performs the processing associated with those layers. The offload protocol guarantees delivery and is encapsulated within FCP-formatted frames. Thus, the TCP streams are reliably passed to the host. Additionally, using this scheme, the offload engine can provide parsing of the TCP stream to further assist the host. The present invention also provides network devices (and components thereof) that are configured to perform the foregoing methods. The invention further defines how network attached storage (“NAS”) protocol data units (“PDUs”) are parsed and delivered.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: May 24, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Timothy Kujk, David Thompson, Stephen DeGroote, Murali Basavaiah, Anand Parthasarathy
  • Tape acceleration
    Publication number: 20060126520
    Abstract: According to the present invention, methods and apparatus are provided improving data transfers between a host and a tape device on fibre channel fabrics connected through an IP fabric. A fibre channel switch preemptively responds to write requests and data transfers from a host even before acknowledgments are received from a tape device. Flow control and error handling mechanisms are implemented to provide error recovery and to allow accelerated response without overrun.
    Type: Application
    Filed: December 15, 2004
    Publication date: June 15, 2006
    Applicant: Cisco Technology, Inc.
    Inventors: Manali Nambiar, Arpakorn Boonkongchuen, Murali Basavaiah, Stephen Degroote
  • Encoding a TCP offload engine within FCP
    Publication number: 20050190787
    Abstract: The present invention defines a new protocol for communicating with an offload engine that provides Transmission Control Protocol (“TCP”) termination over a Fibre Channel (“FC”) fabric. The offload engine terminates all protocols up to and including TCP and performs the processing associated with those layers. The offload protocol guarantees delivery and is encapsulated within FCP-formatted frames. Thus, the TCP streams are reliably passed to the host. Additionally, using this scheme, the offload engine can provide parsing of the TCP stream to further assist the host. The present invention also provides network devices (and components thereof) that are configured to perform the foregoing methods. The invention further defines how network attached storage (“NAS”) protocol data units (“PDUs”) are parsed and delivered.
    Type: Application
    Filed: April 29, 2004
    Publication date: September 1, 2005
    Applicant: Cisco Technology, Inc.
    Inventors: Timothy Kuik, David Thompson, Stephen DeGroote, Murali Basavaiah, Anand Parthasarathy