Patents by Inventor Robert Canada

Robert Canada 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: 5842134
    Abstract: In a wide band radio frequency (RF) simulcast communications system analog voice signals are distributed in a digitized form over high speed data channels and processed as high speed data. A conventional Ericsson, Inc. EDACS.TM. simulcast communications system is improved by altering the apparatus and manner by which "clear voice" (unencrypted analog voice) is distributed from a control point and "aligned" at multiple transmitter sites for simultaneous RF broadcasting. In the improved arrangement, the EDACS.TM. simulcast system inherent digital data stream alignment process produces the requisite time domain alignment for the digitized "clear voice" signals without the need for costly analog audio alignment procedures and equipment.
    Type: Grant
    Filed: September 28, 1995
    Date of Patent: November 24, 1998
    Assignee: Ericsson Inc.
    Inventors: Thomas A. Brown, Robert Canada