Patents by Inventor Timothy J. Armstrong

Timothy J. Armstrong 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).

  • 10 Gigabit ethernet mappings for a common LAN/WAN PMD interface with a simple universal physical medium dependent interface
    Patent number: 6944163
    Abstract: An Ethernet mapping enables high speed Ethernet data streams having a data rate of 10 Gb/s to be transported across a synchronous packet switched network fabric having a standard SONET OC-192 line rate of 9.953280 Gbaud. The 10 Gb/s Ethernet data stream is compressed by removing interframe gaps between successive MAC frames to produce a compressed data stream, which is then mapped to a synchronous container. The synchronous container is then launched across the synchronous packet switched network fabric at a standard SONET OC-192 line rate of 9.953280 Gbaud. The synchronous container is preferably provided as a stripped STS-192c frame having only A1 and A2 octets of the Transport Overhead (TOH).
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: September 13, 2005
    Assignee: Nortel Networks Limited
    Inventors: Paul A. Bottorff, Norival R. Figueira, David W. Martin, Timothy J. Armstrong, Bijan Raahemi
  • 10 Gigabit ethernet mappings for a common LAN/WAN PMD interface with a simple universal physical medium dependent interface
    Publication number: 20010014104
    Abstract: An Ethernet mapping enables high speed Ethernet data streams having a data rate of 10 Gb/s to be transported across a synchronous packet switched network fabric having a standard SONET OC-192 line rate of 9.953280 Gbaud. The 10 Gb/s Ethernet data stream is compressed by removing interframe gaps between successive MAC frames to produce a compressed data stream, which is then mapped to a synchronous container. The synchronous container is then launched across the synchronous packet switched network fabric at a standard SONET OC-192 line rate of 9.953280 Gbaud. The synchronous container is preferably provided as a stripped STS-192c frame having only A1 and A2 octets of the Transport Overhead (TOH).
    Type: Application
    Filed: December 19, 2000
    Publication date: August 16, 2001
    Inventors: Paul A. Bottorff, Norival R. Figueira, David W. Martin, Timothy J. Armstrong, Bijan Raahemi
  • Safety harness system for confined space workers
    Patent number: 4553633
    Abstract: A safety harness for workers employed in confined space work such as entry to manholes is derived from a mountaineer's harness enhanced to provide improved functionality in this specialized application. Additional neck and crotch straps decrease the hazards involved to a topside worker in protecting a descending worker entering a confined space, and facilitate extraction of the descending work from the space in the event of an emergency. The harness incorporates fluorescent striping visible regardless of the position of a worker thus eliminating the need for a separate safety vest, and the addition of a pulley reduces the effort required to extract the descending worker from a confined space in an emergency.
    Type: Grant
    Filed: August 13, 1984
    Date of Patent: November 19, 1985
    Inventors: Timothy J. Armstrong, Gerrard A. Wynen