Patents by Inventor Patrick J. Cawthorne

Patrick J. Cawthorne 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).

  • Radio frequency optical communication system
    Patent number: 8705983
    Abstract: An optical communication system for generating and transmitting a modulated optical signal in which light emitted by a light source is modulated by an optical modulator in accordance with an input electrical signal. A bias signal generator applies a bias electrical signal to bias the optical modulator at a bias angle away from quadrature. The bias signal generator monitors the input electrical signal and adjusts the applied bias electrical signal in dependence on the input electrical signal. The system further includes a receiver which may include an equalizer coupled to the photodetector of the receiver.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: April 22, 2014
    Assignee: Emcore Corporation
    Inventors: Ronald T. Logan, Jr., Eva Peral, Patrick J. Cawthorne, Gustav Witzel, Frank Weiss
  • Radio Frequency Optical Communication System
    Publication number: 20120243874
    Abstract: An optical communication system for generating and transmitting a modulated optical signal in which light emitted by a light source is modulated by an optical modulator in accordance with an input electrical signal. A bias signal generator applies a bias electrical signal to bias the optical modulator at a bias angle away from quadrature. The bias signal generator monitors the input electrical signal and adjusts the applied bias electrical signal in dependence on the input electrical signal. The system further includes a receiver which may include an equalizer coupled to the photodetector of the receiver.
    Type: Application
    Filed: March 25, 2011
    Publication date: September 27, 2012
    Applicant: Emcore Corporation
    Inventors: Ronald T. Logan, JR., Eva Peral, Patrick J. Cawthorne, Gustav Witzel, Frank Weiss