Patents by Inventor ALEXANDER VICTOROVICH UDALTSOV

ALEXANDER VICTOROVICH UDALTSOV 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).

  • Attack-resistant quantum random number generator based on the interference of laser pulses with random phase
    Patent number: 11055404
    Abstract: A system for random number generation includes a laser pulse driver; a laser diode emitting laser pulses; a fiber-optic unbalanced interferometer transforming laser radiation phase noise into amplitude modulation; an optical circulator/isolator that is used to prevent unwanted feedback into a laser cavity; a photodetector that detects the laser pulses from the interferometer; a digitizer that digitizes an output of the photodetector; a statistics control (SC) block that is used to calculate the probability density of the photodetector's output and to define a parameter ? that is related to a classical-to-quantum noise ratio and allows estimating random operation and providing attack resistance of the system; and a processor that receives the digitized output from the digitizer and outputs a true random bit sequence.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: July 6, 2021
    Assignee: QRATE LLC
    Inventors: Vladimir Leonidovich Kurochkin, Roman Pavlovich Ermakov, Vladimir Vladimirovich Zavodilenko, Anton Vadimovich Losev, Alexander Victorovich Udaltsov, Violetta Vladimirovna Sharoglazova, Roman Alexeevich Shakhovoy, Yury Vladimirovich Kurochkin
  • Attack-resistant quantum random number generator based on the interference of laser pulses with random phase
    Publication number: 20210034739
    Abstract: A system for random number generation includes a laser pulse driver; a laser diode emitting laser pulses; a fiber-optic unbalanced interferometer transforming laser radiation phase noise into amplitude modulation; an optical circulator/isolator that is used to prevent unwanted feedback into a laser cavity; a photodetector that detects the laser pulses from the interferometer; a digitizer that digitizes an output of the photodetector; a statistics control (SC) block that is used to calculate the probability density of the photodetector's output and to define a parameter ? that is related to a classical-to-quantum noise ratio and allows estimating random operation and providing attack resistance of the system; and a processor that receives the digitized output from the digitizer and outputs a true random bit sequence.
    Type: Application
    Filed: August 14, 2019
    Publication date: February 4, 2021
    Inventors: VLADIMIR LEONIDOVICH KUROCHKIN, ROMAN PAVLOVICH ERMAKOV, VLADIMIR VLADIMIROVICH ZAVODILENKO, ANTON VADIMOVICH LOSEV, ALEXANDER VICTOROVICH UDALTSOV, VIOLETTA VLADIMIROVNA SHAROGLAZOVA, ROMAN ALEXEEVICH SHAKHOVOY, YURY VLADIMIROVICH KUROCHKIN