Patents by Inventor Donald Bryan Siperko

Donald Bryan Siperko 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 in a wireless messaging system for dynamic creation of directed simulcast zones
    Patent number: 6052064
    Abstract: Base transmitters (116) of a wireless messaging system are pre-programmed (802) with location identifiers (216) for identifying the positions at which the base transmitters are located. In response to an inbound message from a portable subscriber unit (122), a fixed portion (102) of the wireless messaging system makes an estimate (808) of a location at which the portable subscriber unit is positioned. A controller (112) sends (812) an outbound message (614) and the estimate to the base transmitters, and the base transmitters calculate (812) distances between themselves and the portable subscriber unit, based upon the location identifiers and the estimate. In addition, the base transmitters independently make a decision (818) whether to transmit the outbound message, based upon a comparison of a predetermined rule with the distance of the base transmitter from the portable subscriber unit.
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: April 18, 2000
    Assignee: Motorola, Inc.
    Inventors: Brian Joseph Budnik, Donald Bryan Siperko