Patents by Inventor Justin D. Perry

Justin D. Perry 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).

  • Digital architecture for encoding a return-to-zero differential phase shift keying waveform
    Patent number: 9001925
    Abstract: A return-to-zero control signal for controlling a modulator can be generated from two separate streams. A first data stream can include a pulse for each logical one that appears in an input data stream, while a second data stream can include a pulse for each logical zero that appears in the input data stream. The first and second data streams can be combined in a manner that yields the return-to-zero control signal. The first and second data streams can be generated in digital circuitry, such as an FPGA, to minimize the analog path for generating the return-to-zero control signal.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: April 7, 2015
    Assignee: L-3 Communications Corp.
    Inventors: L. Carl Christensen, Bonnie A. Uresk, Justin D. Perry, Michael D. Rivers, John L. Metz, Larry H. Steinhorst