Patents by Inventor John G. Lambrou

John G. Lambrou 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 for selecting a channel in a multi-channel communication system
    Patent number: 8427996
    Abstract: A method for selecting a channel for group communications in a conventional multi-channel communication system comprises receiving, for a plurality of channels in the multi-channel communication system, a talkgroup assignment list for the channels that identifies a set of talkgroups assigned to use the corresponding channels. A subscriber unit receives talkgroup assignment lists for multiple different channels, determines a desired talkgroup, and selects a channel assigned to the desired talkgroup using the received talkgroup assignment. The talkgroup assignment list is developed for at least one channel in the multi-channel communication system and identifies a set of talkgroups assigned to use the corresponding channel. The list is transmitted for the channel to a subscriber unit and is used by the subscriber unit to register with the system and affiliate with a talkgroup supported by the channel in the conventional multi-channel communication system.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: April 23, 2013
    Assignee: Motorola Solutions, Inc.
    Inventors: Timothy G. Woodward, Gerald R. Drobka, James E. Eastwood, Nathanael P. Kuehner, John G. Lambrou, Todd A. Leigh
  • METHOD FOR SELECTING A CHANNEL IN A MULTI-CHANNEL COMMUNICATION SYSTEM
    Publication number: 20100165904
    Abstract: A method for selecting a channel for group communications in a conventional multi-channel communication system comprises receiving, for a plurality of channels in the multi-channel communication system, a talkgroup assignment list for the channels that identifies a set of talkgroups assigned to use the corresponding channels. A subscriber unit receives talkgroup assignment lists for multiple different channels, determines a desired talkgroup, and selects a channel assigned to the desired talkgroup using the received talkgroup assignment. The talkgroup assignment list is developed for at least one channel in the multi-channel communication system and identifies a set of talkgroups assigned to use the corresponding channel. The list is transmitted for the channel to a subscriber unit and is used by the subscriber unit to register with the system and affiliate with a talkgroup supported by the channel in the conventional multi-channel communication system.
    Type: Application
    Filed: December 29, 2008
    Publication date: July 1, 2010
    Applicant: MOTOROLA, INC.
    Inventors: TIMOTHY G. WOODWARD, GERALD R. DROBKA, JAMES E. EASTWOOD, NATHANAEL P. KUEHNER, JOHN G. LAMBROU, TODD A. LEIGH
  • System for providing optimal satellite communication via a MEO/LEO satellite constellation
    Patent number: 6684056
    Abstract: A method of increasing satellite communication quality by using a MEO satellite constellation (12) and a LEO satellite constellation (14) in combination with a decision algorithm which selects the appropriate constellation to route a communication signal through. The decision algorithm can be embodied in three ways: gateway based (18), individual subscriber unit based (22) and satellite based (12, 14). The MEO constellation (12) and LEO (14) constellation may be cross-linked, allowing for switching of service between satellites, as needed, during a communication session.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: January 27, 2004
    Assignee: Motorola, Inc.
    Inventors: Thomas Peter Emmons, Jr., Shawn W. Hogberg, Cynthia C. Matthews, Michael D. Ince, Susan L. Harris, Robert A. Peters, James W. Startup, Jonathan H. Gross, John R. Erlick, Allen H. ‘Skip’ Nelson, Craig L. Fullerton, Jim E. Helm, John G. Lambrou, David L. Krueger