Patents by Inventor Devindran Rajakrishna

Devindran Rajakrishna 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 system for autodiscovery of a network path
    Patent number: 8407365
    Abstract: A method and apparatus for discovering network paths sets a bit, normally used for purposes other than tracing a network path, in an overhead portion of a signal for causing state changes at nodes along a network path. The state changes are correlated with information about the signal to determine link connectivity between nodes to identify the network path. In a network of DS3 circuits, a non-critical alarm bit is set in a signal to transmit Remote Alarm Indications (RAI) which activate alarms at nodes of the network path. A response signal from the nodes can be sent through a network to a main node for correlation purposes. The method of discovering network paths can be used to update network path databases of network carriers and can be offered as a service to network carriers.
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: March 26, 2013
    Assignee: Tellabs Operations, Inc.
    Inventors: Gary S. Feutz, Thomas T. Rarick, Devindran Rajakrishna
  • Method and system for autodiscovery of a network path
    Publication number: 20060031573
    Abstract: A method and apparatus for discovering network paths sets a bit, normally used for purposes other than tracing a network path, in an overhead portion of a signal for causing state changes at nodes along a network path. The state changes are correlated with information about the signal to determine link connectivity between nodes to identify the network path. In a network of DS3 circuits, a non-critical alarm bit is set in a signal to transmit Remote Alarm Indications (RAI) which activate alarms at nodes of the network path. A response signal from the nodes can be sent through a network to a main node for correlation purposes. The method of discovering network paths can be used to update network path databases of network carriers and can be offered as a service to network carriers.
    Type: Application
    Filed: May 24, 2004
    Publication date: February 9, 2006
    Applicant: Tellabs Operations, Inc.
    Inventors: Gary Feutz, Thomas Rarick, Devindran Rajakrishna