Patents by Inventor Dmitry Levandovsky

Dmitry Levandovsky 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).

  • Dynamic bandwidth management using signaling protocol and virtual concatenation
    Patent number: 7352758
    Abstract: A communication system (10) employs switching circuits, such as an add/drop multiplexer (70) and another add/drop multiplexer (110). The bandwidth of a circuit switched connection between the switching circuits is altered without taking down the connection.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: April 1, 2008
    Assignee: Tellabs Operations, Inc.
    Inventors: Srinivas V. Makam, Gary L. Davis, Corey M. Parollina, Dmitry Levandovsky
  • Method and apparatus for validating a path through a switched optical network
    Patent number: 7095956
    Abstract: A method for validating a path through a switched optical network is disclosed. A bit error rate at the end of the path is determined. The path is validated if the bit error rate is within a predefined range.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: August 22, 2006
    Assignee: Tellabs Operations, Inc.
    Inventors: Dmitry Levandovsky, Srinivas V. Makam, Vishal Sharma
  • Method and apparatus for validating a path through a switched optical network
    Publication number: 20020063915
    Abstract: A method for validating a path through a switched optical network is disclosed. A bit error rate at the end of the path is determined. The path is validated if the bit error rate is within a predefined range.
    Type: Application
    Filed: June 8, 2001
    Publication date: May 30, 2002
    Inventors: Dmitry Levandovsky, Srinivas V. Makam, Vishal Sharma
  • Dynamic bandwidth management using signaling protocol and virtual concatenation
    Publication number: 20010033570
    Abstract: A communication system (10) employs switching circuits, such as an add/drop multiplexer (70) and another add/drop multiplexer (110). The bandwidth of a circuit switched connection between the switching circuits is altered without taking down the connection.
    Type: Application
    Filed: February 15, 2001
    Publication date: October 25, 2001
    Inventors: Srinivas V. Makam, Gary L. Davis, Corey M. Parollina, Dmitry Levandovsky