Patents by Inventor ShuHung Alexander Mak

ShuHung Alexander Mak 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).

  • Method and apparatus for clearing a large number of connections in an ATM network
    Patent number: 7415025
    Abstract: A method for clearing a plural number of connections from each of two connected nodes by clearing the first connection from the first node, generating a single first message from the first node to the second node identifying the connections, clearing the connections from the second node in response to the receipt of the first message, and generating a second message from the second node to the first node identifying the connections cleared by the second node in response to the second node receiving the first message. Furthermore, a node having circuits for generating and interpreting each of the two messages, and maintaining a database of connection status. Further, each of the two message types that signal a clearing of a plurality of inter-nodal connections.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: August 19, 2008
    Assignee: Cisco Technology, Inc.
    Inventors: Lakshminarayanan Venkataraman, ShuHung Alexander Mak, Cheng Chia Chu
  • Network wide debugging including node debugging information in the GAT IE of a PNNI Signaling Message
    Patent number: 7197668
    Abstract: A method for debugging failure nodes of a network connection by providing node debugging information for a failure node in a connection failure message of a signaling protocol. The connection failure message, which indicates a failed network connection, is forwarded from the failure node to the source node of the failed connection. The node debugging information is carried in a generic application transport information element of the PNNI signaling RELEASE message, providing an efficient debugging means for network failure nodes.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: March 27, 2007
    Assignee: Cisco Technology, Inc.
    Inventors: Pansy Hui, Cheng Chia Chu, ShuHung Alexander Mak
  • Asynchronous transfer mode system and method to verify a connection
    Patent number: 7042881
    Abstract: A method, and apparatus to transmit an ATM data message from a source node to a destination node, and reflect at least a portion of the data back t where it is compared to the transmitted data. The destination node includes a reflection circuit service located at a specific selector code address, and the destination node listens for a transmission to the specific selector code for reflecting the portion of received data in a subsequent data message for the connection. The source node addresses a setup message to the destination node containing the specific selector code, and compares the transmitted message with the received message. The source node also includes a method and apparatus to send alternatively trace and path trace information as an attachment to a transmitted message, receive the reflected information element, and pass hop data contained within the information element to a user interface for presentation to a user.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: May 9, 2006
    Assignee: Cisco Technology, Inc.
    Inventors: Sandeep Dhar, Dean Cheng, ShuHung Alexander Mak