Patents by Inventor Laurance Longtin

Laurance Longtin 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).

  • Chaotic Communication System with Modulation of Nonlinear Elements
    Publication number: 20080008320
    Abstract: A chaotic communication system employs transmitting and receiving chaotic oscillating circuits. One improvement to first-generation systems is the ability to modulate a nonreactive element in the transmitting circuit, thus increasing modulation bandwidth. Other features include insertion of a gain control amplifier in a chaotic receiver; signal filtering in chaotic transmitters and receivers; use of chaotic modulation techniques for cellular telephony applications; dual-transmitter and receiver systems; a dual receiver synchronization detector; interfaces to communication systems; analog chaotic signal modulation; use of multiple chaotic transmitters and receivers; digital algorithm improvement using a cube-law nonlinear component; a Gb-only receiver; a Gb-only transmitter; and positive slope transmitter and receiver systems.
    Type: Application
    Filed: June 12, 2007
    Publication date: January 10, 2008
    Applicant: Science Applications International Corporation
    Inventors: Daniel Hinton, Nelson Dew, Laurance Longtin, Charles Gardner, Shannon Martin, Michael Edwards, Antwong Berkley, Steven Bowser
  • Chaotic communication system and method using modulation of nonreactive circuit elements
    Publication number: 20060072754
    Abstract: A chaotic communication system employs transmitting and receiving chaotic oscillating circuits. One improvement to first-generation systems is the ability to modulate a nonreactive element in the transmitting circuit, thus increasing modulation bandwidth. Other features include insertion of a gain control amplifier in a chaotic receiver; signal filtering in chaotic transmitters and receivers; use of chaotic modulation techniques for cellular telephony applications; dual-transmitter and receiver systems; a dual receiver synchronization detector; interfaces to communication systems; analog chaotic signal modulation; use of multiple chaotic transmitters and receivers; digital algorithm improvement using a cube-law nonlinear component; a Gb-only receiver; a Gb-only transmitter; and positive slope transmitter and receiver systems.
    Type: Application
    Filed: November 10, 2005
    Publication date: April 6, 2006
    Applicant: Science Applications International Corporation
    Inventors: Daniel Hinton, Nelson Dew, Laurance Longtin, Charles Gardner, Shannon Martin, Michael Edwards, Antwong Berkley, Steven Bowser