Patents by Inventor Barry K. Chan

Barry K. Chan 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).

  • Mapping SNA session flow control to TCP flow control
    Patent number: 6192411
    Abstract: A TN3270 server (26) that forwards a 3270 data stream from a Systems Network Architecture (“SNA”) connection (28) to a Transmission Control Protocol (“TCP”) connection (24) monitors the TCP connection for segments that acknowledge thereby-transmitted bytes. It also keeps track of the unacknowledged-byte window sizes specified by received TCP-connection -segments. It responds with a pacing response to a pacing-request-containing SNA message only when forwarding of previously received information from the SNA can be completed without resulting in a number of unacknowledged bytes that exceeds the specified window size.
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: February 20, 2001
    Assignee: Cisco Technology, Inc.
    Inventors: Barry K. Chan, Michael Boe
  • Mapping SNA session flow control to TCP flow control
    Patent number: 6049833
    Abstract: A TN3270 server (26) that forwards a 3270 data stream from a Systems Network Architecture ("SNA") connection (28) to a Transmission Control Protocol ("TCP") connection (24) monitors the TCP connection for segments that acknowledge thereby-transmitted bytes. It also keeps track of the unacknowledged-byte window sizes specified by received TCP-connection segments. It responds with a pacing response to a pacing-request-containing SNA message only when forwarding of previously received information from the SNA can be completed without resulting in a number of unacknowledged bytes that exceeds the specified window size.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: April 11, 2000
    Assignee: Cisco Technology, Inc.
    Inventors: Barry K. Chan, Michael Boe