Patents by Inventor Jon C. Freeman

Jon C. Freeman 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).

  • Ka-band waveguide hybrid divider with unequal and arbitrary power output ratio
    Patent number: 10033083
    Abstract: One or more embodiments of the present invention describe an apparatus and method to combine unequal powers. The apparatus includes a first input port, a second input port, and a combiner. The first input port is operably connected to a first power amplifier and is configured to receive a first power from the first power amplifier. The second input port is operably connected to a second power amplifier and is configured to receive a second power from the second power amplifier. The combiner is configured to simultaneously receive the first power from the first input port and the second power from the second input port. The combiner is also configured to combine the first power and second power to produce a maximized power. The first power and second power are unequal.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: July 24, 2018
    Assignee: The United States of America as Represented by the Administrator of National Aeronautics and Space Administration
    Inventors: Rainee N. Simons, Christine T. Chevalier, Edwin G. Wintucky, Jon C. Freeman
  • Optical tunable-based transmitter for multiple radio frequency bands
    Patent number: 9490899
    Abstract: An optical tunable transmitter is used to transmit multiple radio frequency bands on a single beam. More specifically, a tunable laser is configured to generate a plurality of optical wavelengths, and an optical tunable transmitter is configured to modulate each of the plurality of optical wavelengths with a corresponding radio frequency band. The optical tunable transmitter is also configured to encode each of the plurality of modulated optical wavelengths onto a single laser beam for transmission of a plurality of radio frequency bands using the single laser beam.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: November 8, 2016
    Assignee: The United States of America as Represented by the Administrator of National Aeronautics and Space Administration
    Inventors: Hung Nguyen, Rainee N. Simons, Edwin G. Wintucky, Jon C. Freeman
  • Ka-band waveguide 2-way hybrid combiner for MMIC amplifiers with unequal and arbitrary power output ratio
    Patent number: 9484613
    Abstract: One or more embodiments of the present invention describe an apparatus and method to combine unequal powers. The apparatus includes a first input port, a second input port, and a combiner. The first input port is operably connected to a first power amplifier and is configured to receive a first power from the first power amplifier. The second input port is operably connected to a second power amplifier and is configured to receive a second power from the second power amplifier. The combiner is configured to simultaneously receive the first power from the first input port and the second power from the second input port. The combiner is also configured to combine the first power and second power to produce a maximized power. The first power and second power are unequal.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: November 1, 2016
    Assignee: United States of America as Represented by the Administrator of National Aeronautics and Space Administration
    Inventors: Rainee N Simons, Christine T Chevalier, Edwin G Wintucky, Jon C Freeman
  • Programmable error-checking matrix for digital communication system
    Patent number: 5396505
    Abstract: A programmable system for checking for protocol errors in a communication system includes a matrix for generating error checking signals selected by data fields utilized to implement a communication. If the configuration or protocol is changed the system facilitates reprogramming to compensate for the change.
    Type: Grant
    Filed: July 6, 1993
    Date of Patent: March 7, 1995
    Assignee: Tandem Computers Incorporated
    Inventors: Jon C. Freeman, Cheng-Gang Kong