Patents by Inventor James S. Lavranchuk

James S. Lavranchuk 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).

  • Patent number: 8210755
    Abstract: The present invention provides for an optical cable and methods for interconnecting modular components with optical fibers. Each optical fiber is electronically labeled with a unique serial number such that interconnections using the optical fibers can be accurately audited.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: July 3, 2012
    Assignee: Alcatel Lucent
    Inventor: James S. Lavranchuk
  • Publication number: 20080159738
    Abstract: The present invention provides for an optical cable and methods for interconnecting modular components with optical fibers. Each optical fiber is electronically labeled with a unique serial number such that interconnections using the optical fibers can be accurately audited.
    Type: Application
    Filed: December 29, 2006
    Publication date: July 3, 2008
    Inventor: James S. Lavranchuk
  • Patent number: 6650637
    Abstract: A high capacity digital non-blocking cross-connect switching fabric is realized by employing a multi-port RAM based space-time switch having a plurality of write circuits and a plurality of read circuits, each of which operates at a timing rate that is a prescribed fraction of the input/output clock rate of the input/output ports of the multi-port RAM based cross-connect switching fabric. The at least one multi-port RAM switch unit has a plurality of write circuits and a plurality of read circuits, each of which operates at a timing rate that is a prescribed fraction of the input/output clock rate of the input/output ports of the multi-port RAM based cross-connect switching fabric. Additionally, in one embodiment, each of the write circuits and each of the read circuits has independent and unrestricted access to all data storage positions in each of a plurality of storage units that make up the at least one multi-port RAM switch unit.
    Type: Grant
    Filed: December 14, 1998
    Date of Patent: November 18, 2003
    Assignee: Lucent Technologies Inc.
    Inventors: Narendra K. Bansal, Kenneth A. Becker, James S. Lavranchuk
  • Patent number: 6516436
    Abstract: Error control coding is applied to data streams transmitted through transmission equipment such as a telecommunications switch having a distributed synchronous switch fabric. Each k-symbol dataword is encoded to generate an n-symbol codeword that is then sliced for transmission through the transmission equipment. After routing, error-correction decoding is applied to the resulting routed n-symbol codeword to detect and correct one or more errors in the codeword to generate a k-symbol routed dataword that is identical to the original incoming dataword. Depending on the coding scheme, different types and numbers of errors can be corrected in each codeword. For example, for Reed-Solomon [12, 8, 5] coding with Galois field (24), corrections can be made for up to four erasures with no random errors, up to two erasures and one; random error, or up to two random errors with no erasures.
    Type: Grant
    Filed: January 13, 2000
    Date of Patent: February 4, 2003
    Assignee: Lucent Technologies Inc.
    Inventors: Bharat P. Dave, Adriaan J. De Lind Van Wijngaarden, Brij B. Garg, James S. Lavranchuk, Boris B. Stefanov, Rudiger L. Urbanke