Patents by Inventor Terry Pearson

Terry Pearson 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 apparatus for discarding data packets through the use of descriptors
    Patent number: 6977894
    Abstract: A method, apparatus and article of manufacture for discarding a data packet. The data packet is classified according to a type of service (TOS) indicator and modified with an internal service class (ISC) indicator according to the TOS indicator. The data packet is modified with a watermark (WM) indicator according to the availability of a system resource. The ISC, WM and a drop preference (DP) indicator of the data packet are compared to a committed information rate (CIR). The packet is discarded if the DP exceeds the CIR.
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: December 20, 2005
    Assignee: Nortel Networks Limited
    Inventors: Heather Achilles, Terry Pearson, Paul Gallo, Larry Manor
  • Method and apparatus for a fault tolerant router architecture
    Patent number: 6778490
    Abstract: A method, apparatus and article of manufacture for routing a data packet in a fault tolerant manner. A data packet is received from an incoming data channel and is transferred to a switching engine (SE) through an access processor engine (APE). A route for the data packet is generated using a central processor resource (CPR). The data packet is transferred from the SE to an outgoing trunk physical module (TP) using the route.
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: August 17, 2004
    Assignee: Nortel Networks Limited
    Inventors: Heather Achilles, Terry Pearson, Paul Gallo, Kevin Klapper, Dan Sullivan
  • Method and apparatus for quality of service translation
    Patent number: 6650644
    Abstract: A method, apparatus and article of manufacture for translating the quality of service (QOS) of a data packet. An incoming type of service (TOS) mask word is generated, and a QOS lookup table is generated. A TOS value is generated by masking a header field of the data packet with the TOS mask. The QOS lookup table is searched for a QOS translation using the TOS value as a key value. An internal service class (ISC) indicator is output according to the QOS translation entry.
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: November 18, 2003
    Assignee: Nortel Networks Limited
    Inventors: Tom Colley, Joe Kidder, Larry Manor, Terry Pearson
  • Method and apparatus for discarding data packets
    Patent number: 6647424
    Abstract: A method, apparatus and article of manufacture for filtering a data packet. The data packet is classified a filter type according to a classification criteria. A size value of the data packet is added to a data count for the filter type. The filter type is compared to a committed information rate (CIR). The data packet is filtered if the data count exceeds the CIR or a burst rate. A status the data packet may optionally be altered if the data count exceeds the CIR. A priority of the data packet may optionally be reclassified if the data count exceeds the CIR.
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: November 11, 2003
    Assignee: Nortel Networks Limited
    Inventors: Terry Pearson, Tom Colley, Larry Manor, Joe Kidder, Linda Cabeca
  • Method and apparatus for the prioritization of control plane traffic in a router
    Patent number: 6621829
    Abstract: A method, apparatus and article of manufacture for prioritization of control plane traffic in a router. A destination slot is allocated in a sliding window buffer via a control channel. A data packet is received via a data channel. An acknowledgement that the data packet was received is sent via the control channel. The destination slot is released via the control channel.
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: September 16, 2003
    Assignee: Nortel Networks Limited
    Inventors: Heather Achilles, Terry Pearson, Paul Gallo, Tom Colley, Dan Sullivan, Bill Miller