Patents by Inventor John Gilroy Rarity

John Gilroy Rarity 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).

  • Quantum key distribution apparatus and method
    Patent number: 8054976
    Abstract: A quantum key distribution (QKD) system is provided that makes use of a quantum signal of polarized photons and comprises a QKD device and complimentary QKD apparatus. The QKD device has a QKD subsystem comprising one of a QKD transmitter and receiver for inter-working with a complimentary QKD receiver or transmitter of said apparatus. The device also has an alignment subsystem arranged to wirelessly interact with the QKD apparatus to enable generation of user feedback and/or adjustment signals for use in aligning the QKD transmitter and receiver such that the QKD transmitter is pointing at the QKD receiver and the polarization axes of the QKD transmitter and receiver are aligned.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: November 8, 2011
    Inventors: Keith Alexander Harrison, William John Munro, John Gilroy Rarity, Joanna Louise Duligall