Patents by Inventor Douglas S. Weisenberg

Douglas S. Weisenberg 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).

  • Distributed services based on presence technology
    Patent number: 7711810
    Abstract: The present invention provides distributed communication services based on a presence technology platform. Presence messaging and communication techniques allow a variety of communication agents to cooperate with one another to provide distributed services. Essentially, the messaging between the agents is used to facilitate media sessions and update participating devices of state changes bearing on providing the services. In one embodiment, each of the participating devices is associated with a logic entity, referred to as a presentity, which subscribes to notification services for the other participating devices. When a state change occurs on any one of the participating devices, the corresponding presentity notifies the other devices of the state change.
    Type: Grant
    Filed: January 3, 2003
    Date of Patent: May 4, 2010
    Assignee: Nortel Networks Limited
    Inventors: Steve J. McKinnon, William Janning, Douglas S. Weisenberg
  • Distributed services based on presence technology
    Publication number: 20040133641
    Abstract: The present invention provides distributed communication services based on a presence technology platform. Presence messaging and communication techniques allow a variety of communication agents to cooperate with one another to provide distributed services. Essentially, the messaging between the agents is used to facilitate media sessions and update participating devices of state changes bearing on providing the services. In one embodiment, each of the participating devices is associated with a logic entity, referred to as a presentity, which subscribes to notification services for the other participating devices. When a state change occurs on any one of the participating devices, the corresponding presentity notifies the other devices of the state change.
    Type: Application
    Filed: January 3, 2003
    Publication date: July 8, 2004
    Applicant: NORTEL NETWORKS LIMITED
    Inventors: Steve J. McKinnon, William Janning, Douglas S. Weisenberg