Patents by Inventor Lawrence Mitchell Firestone

Lawrence Mitchell Firestone 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 system for multicast using a satellite network
    Patent number: 6307861
    Abstract: A multicast message is transmitted from an originating subscriber unit (110, FIG. 1) through a network of satellite communications nodes (120, 130, and 140) to a plurality of receiving subscriber units (150, 160, and 170). Each message is distributed through the network of satellite communications nodes (120, 130, and 140) and replicated at the node nearest to the receiving subscriber unit. Receiving subscriber units (150, 160, and 170) are mapped into geographic cells which allows a single multicast transmission to be transmitted from the satellite communications node to those subscriber units within the same geographic cell. Multicast groups and membership rules are established by the originating subscriber unit (110) through a service provider (180). A multicast session manager (185) manages the multicast session.
    Type: Grant
    Filed: March 18, 1999
    Date of Patent: October 23, 2001
    Assignee: Motorola, Inc.
    Inventors: Gerald James Hogg, Mark Hajime Kaya, Lawrence Mitchell Firestone, Shawn Wesley Hogberg, Thomas Peter Emmons, Jr., Israel Arieh Cimet