Patents by Inventor Asghar Ebrahim Methiwalla

Asghar Ebrahim Methiwalla 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 of tracing the root of virtual connections
    Patent number: 6563795
    Abstract: A telecommunications network such as an ATM, Frame Relay or packet based network will be better managed by identifying nodes through which a virtual connection is routed between two end nodes. A new method of tracing the nodes on the route includes sending trace cells downstream of a monitoring node toward one or both end nodes. Each downstream node either loops back a trace cell identifying itself to the monitoring node or forwards the trace cell further. A plurality of trace cells sent along the route identify nodes located thereon. In one embodiment, the trace cell is an extension of the ATM FMOAM cell (ATM Fault Management OAM cell) specified for loopback functions.
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: May 13, 2003
    Assignee: Nortel Networks Limited
    Inventors: John Gerald Gruber, Asghar Ebrahim Methiwalla, Richard Vickers
  • Method of tracing the route of virtual connections
    Patent number: 5901141
    Abstract: A telecommunications network such as an ATM, Frame Relay or packet based network will be better managed by identifying nodes through which a virtual connection is routed between two end nodes. A new method of tracing the nodes on the route includes sending trace cells downstream of a monitoring node toward one or both end nodes. Each downstream node either loops back a trace cell identifying itself to the monitoring node or forwards the trace cell further. A plurality of trace cells sent along the route identify nodes located thereon. In one embodiment, the trace cell is an extension of the ATM FMOAM cell (ATM Fault Management OAM cell) specified for loopback functions.
    Type: Grant
    Filed: September 26, 1997
    Date of Patent: May 4, 1999
    Assignee: Northern Telecom Limited
    Inventors: John Gerald Gruber, Asghar Ebrahim Methiwalla, Richard Vickers
  • Method of tracing the route of virtual connections
    Patent number: 5675578
    Abstract: A telecommunications network such as an ATM, Frame Relay or packet based network will be better managed by identifying nodes through which a virtual connection is routed between two end nodes. A new method of tracing the nodes on the route includes sending trace cells downstream of a monitoring node toward one or both end nodes. Each downstream node either loops back a trace cell identifying itself to the monitoring node or forwards the trace cell further. A plurality of trace cells sent along the route identify nodes located thereon. In one embodiment, the trace cell is an extension of the ATM FMOAM cell (ATM Fault Management OAM cell) specified for loopback functions.
    Type: Grant
    Filed: April 11, 1995
    Date of Patent: October 7, 1997
    Assignee: Bell-Northern Research Ltd.
    Inventors: John Gerald Gruber, Asghar Ebrahim Methiwalla, Richard Vickers