Patents by Inventor Howard T. Ozaki

Howard T. Ozaki 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).

  • Tunable impedance matching network for a mic power amplifier module
    Patent number: 5973567
    Abstract: The output impedance matching network of a power amplifier module is improved by the addition of an intermediate set of bonding pads in close proximity to a power transistor in the power amplifier module. A tunable set of bond wires extend from the intermediate bonding pads to a transmission line that is coupled to the output of the power amplifier module. The tunable bond wires allow the inductance of the impedance matching network to be tuned and optimized.
    Type: Grant
    Filed: June 16, 1997
    Date of Patent: October 26, 1999
    Assignee: Hughes Electronics Corporation
    Inventors: Mark D. Heal, John R. Grebliunas, Howard T. Ozaki, Arnold L. Berman
  • Solid state power amplifier with low distortion noise protection limiter
    Patent number: 5892401
    Abstract: A limiter for a solid state power amplifier (SSPA) protects the amplifier against large peak, short duration noise signals while controlling drive level related phase shifts. The limiter limits noise signals to a safe input level for the power output section of the SSPA. It also uses a pair of resistor networks at its input and output to dampen reflected energy and thus control drive level related phase shifts.
    Type: Grant
    Filed: June 16, 1997
    Date of Patent: April 6, 1999
    Assignee: Hughes Electronics Corporation
    Inventors: David L. Crampton, Arnold L. Berman, Howard T. Ozaki