Patents by Inventor Don L. Jackson

Don L. Jackson 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: 6807173
    Abstract: Because consuming extensive processor resources to directly compress textual messages for transmission in a data communication network is viewed as undesirable, a method of message compression in accordance with the present invention applies simple tokenization to certain fields in a message and then combines at least two of the tokens to produce a compact tokenized message that is up to 30% smaller than the original message. Thereafter, the tokenized message can optionally be compressed further utilizing a standard compression algorithm, such as Lempel-Ziv 1977 (LZ77), to attain a substantial compression ratio. Applying a standard compression scheme, such as LZ77, after tokenization is not as processor-intensive as direct compression of the original message and can decrease the message size by an additional 10%.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: October 19, 2004
    Assignee: Nortel Networks Limited
    Inventors: Enoch K. Lee, Suvanee Chirachanchai, Sanjoy Sen, Glenn C. Morrow, Don L. Jackson
  • Patent number: 6490451
    Abstract: An improved method and system for providing packet-switched management of switching and handoff functions for a mobile terminal during call setup and user communication phases of a telecommunication session. A radio access network (RAN) including an air-interface base station in communication with the mobile terminal is in communicative contact with a packet-switched core network comprised of a plurality nodes which provide functionality that is equivalent to that of a network of Mobile Switching Centers (MSCs) and Visitor Location Registers (VLRs). A packet-switching backbone network provides communication transport facilities within the core network. Within the core network is a wireless access gateway (WAG) having media channels that provide an interface between the RAN and the core network. An Anchor Packet Gateway (APG) extends the bearer path from the WAG, and hides mobility between WAGs during the user communication phase.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: December 3, 2002
    Assignee: Nortel Networks Limited
    Inventors: Robert E. Denman, Don L. Jackson, Donald V. Hanley, Paul H. Boudreaux, Stewart H. Maxwell