Patents by Inventor Robert J. Thon

Robert J. Thon 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).

  • Adaptive feedback channel for radio frequency power amplifiers
    Patent number: 7103329
    Abstract: A radio frequency (RF) amplifier system includes an RF power amplifier having an input and an output, and a typical gain of 1000 or more between the input and the output. An adaptive feedback channel is coupled between the input and the output of the RF power amplifier. The adaptive feedback channel receives as inputs audio signals for modulation of the input of the RF power amplifier, a frequency command word indicative of a desired frequency and phase of the RF amplifier system, and a control word indicative of a desired power level of the output of the RF power amplifier and of a mode of operation of the RF amplifier system. In response to the inputs, the adaptive feedback channel provides as an output a degenerative feedback signal to the input of the RF power amplifier.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: September 5, 2006
    Assignee: Rockwell Collins, Inc.
    Inventor: Robert J. Thon
  • Quadrature hybrid RF combining system
    Patent number: 6194980
    Abstract: A radio frequency combining system is disclosed that uses commercially available quadrature hybrid couplers configured in a unique manner to combine any radio frequency sources such as transmitters into a single load such as an antenna. The radio frequency combining system is bidirectional and can be used in the receive mode to combine the output of a receive antenna with outputs from an interference canceller to then supply received signals to a multiple receiver system.
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: February 27, 2001
    Assignee: Rockwell Collins, Inc.
    Inventor: Robert J. Thon