Patents by Inventor David A. Zavadil

David A. Zavadil 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).

  • System and method for noise and spurious suppression in power amplifier systems
    Patent number: 6791408
    Abstract: An amplifier system is disclosed. The amplifier system includes a first amplifier, a second amplifier, and a phase noise suppression circuit. The first amplifier includes an input signal terminal and an output signal terminal. The second amplifier includes an input signal terminal and an output signal terminal. The input signal terminal of the second amplifier is coupled to the output signal terminal of the first amplifier. The phase noise suppression circuit includes first and second input terminals and an output terminal. The first input terminal of the phase noise suppression circuit is coupled to the input signal terminal of the first amplifier. The second input terminal of the phase noise suppression circuit is coupled to the output signal terminal of the second amplifier. The output terminal of the phase noise suppression circuit is coupled to the first amplifier.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: September 14, 2004
    Assignee: Teledyne Technologies Incorporated
    Inventors: Yehuda G. Goren, Charles E. Jensen, Donald R. Gagne, Philip M. Lally, David Zavadil
  • System and method for noise and spurious supression in power amplifier systems
    Patent number: 6535060
    Abstract: An amplifier system including a vacuum tube amplifier having an input signal terminal and an output signal terminal, wherein the vacuum tube amplifier is for amplifying an input signal supplied to the input signal terminal, a phase comparator having a first input terminal responsive to the input signal and having a second input terminal coupled to the output signal terminal of the vacuum tube amplifier, and a phase shifter having a first input terminal responsive to the input signal, a second input terminal coupled to an output terminal of the phase comparator, and an output terminal coupled to the input signal terminal of the vacuum tube amplifier.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: March 18, 2003
    Assignee: Teledyne Technologies Incorporated
    Inventors: Yehuda G. Goren, Charles E. Jensen, Donald R. Gagne, Philip M. Lally, David Zavadil
  • System and method for noise and spurious suppression in power amplifier systems
    Publication number: 20020196077
    Abstract: An amplifier system, including a vacuum tube amplifier having an input signal terminal and an output signal terminal, and a phase noise suppression circuit having first and second input terminals and an output terminal, wherein the first input terminal is coupled to the input signal terminal of the vacuum tube amplifier, the second input terminal is coupled to the output signal terminal of the vacuum tube amplifier, and the output terminal is coupled to one of an electron source of the vacuum tube amplifier and an interaction region of the vacuum tube amplifier.
    Type: Application
    Filed: June 20, 2002
    Publication date: December 26, 2002
    Inventors: Yehuda G. Goren, Charles E. Jensen, Donald R. Gagne, Philip M. Lally, David A. Zavadil
  • System and method for noise and spurious suppression in power amplifier systems
    Patent number: 6459337
    Abstract: An amplifier system, including a vacuum tube amplifier having an input signal terminal and an output signal terminal, and a phase noise suppression circuit having first and second input terminals and an output terminal, wherein the first input terminal is coupled to the input signal terminal of the vacuum tube amplifier, the second input terminal is coupled to the output signal terminal of the vacuum tube amplifier, and the output terminal is coupled to one of an electron source of the vacuum tube amplifier and an interaction region of the vacuum tube amplifier.
    Type: Grant
    Filed: July 5, 2000
    Date of Patent: October 1, 2002
    Assignee: Teledyne Technologies Incorporated
    Inventors: Yehuda G. Goren, Charles E. Jensen, Donald R. Gagne, Philip M. Lally, David Zavadil
  • System and method for noise and spurious supression in power amplifier systems
    Publication number: 20020075071
    Abstract: An amplifier system including a vacuum tube amplifier having an input signal terminal and an output signal terminal, wherein the vacuum tube amplifier is for amplifying an input signal supplied to the input signal terminal, a phase comparator having a first input terminal responsive to the input signal and having a second input terminal coupled to the output signal terminal of the vacuum tube amplifier, and a phase shifter having a first input terminal responsive to the input signal, a second input terminal coupled to an output terminal of the phase comparator, and an output terminal coupled to the input signal terminal of the vacuum tube amplifier.
    Type: Application
    Filed: December 5, 2000
    Publication date: June 20, 2002
    Inventors: Yehuda G. Goren, Charles E. Jensen, Donald R. Gagne, Philip M. Lally, David Zavadil