Patents by Inventor Barry M. Rader

Barry M. Rader 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).

  • Transmission and reception of signals in a communication systems
    Patent number: 5974319
    Abstract: A dual-mode mobile station (125) transmits an AMPS signal (Td AMPS) concurrently during transmission of a DS CDMA signal (Td DS CDMA) for purposes of handoff of the mobile station from the DS CDMA system to AMPS. Scanning receivers (221) at surrounding AMPS base-stations (135-138) measure the quality of the AMPS signal (Td AMPS) and determine the best base-station for handoff. To ensure a strong signal during concurrent transmission, other mobile stations not undergoing handoff are instructed to notch their transmissions during transmission by mobile station (125) of the AMPS signal (Td AMPS).
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: October 26, 1999
    Assignee: Motorola, Inc.
    Inventors: Michael D. Kotzin, Barry M. Rader, Barry J. Menich