Patents by Inventor Vadim Popovich

Vadim Popovich 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).

  • Random number generator based on the spontaneous alpha-decay
    Patent number: 6745217
    Abstract: The present invention is an apparatus and a method for generation of random numbers. The apparatus comprises an alpha-radiation source, such as Am 241, for which the decay product produces no secondary radiation with the energy equal or higher than that of the prime alpha radiation. The alpha particles emitted by the isotope and having reached the detector have a narrow energy spectrum and, hence, produce identical electrical pulses in a detector. An alpha-particle detection system is provided which includes a differential discriminator in combination with a logical selector. This combination of elements allows a positive identification of individual events of alpha-decay in the alpha-radiation source to be made and filters out any other signals produced by different radiation sources both inside and outside the apparatus. An electronic unit processes the stream of identical electric pulses into a stream of random numbers.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: June 1, 2004
    Assignees: The Regents of the University of California, The University of North Carolina at Charlotte, PDH International, Inc.
    Inventors: Aleksandr Figotin, Ilya Vitebskiy, Vadim Popovich, Gennady Stetsenko, Stanislav Molchanov, Alexander Gordon, Joseph Quinn, Nicholas Stavrakas
  • Random number generator based on the spontaneous alpha-decay
    Publication number: 20030018674
    Abstract: The present invention is an apparatus and a method for generation of random numbers. The apparatus comprises an alpha-radiation source, such as Am 241, for which the decay product produces no secondary radiation with the energy equal or higher than that of the prime alpha radiation. The alpha particles emitted by the isotope and having reached the detector have a narrow energy spectrum and, hence, produce identical electrical pulses in a detector. An alpha-particle detection system is provided which includes a differential discriminator in combination with a logical selector. This combination of elements allows a positive identification of individual events of alpha-decay in the alpha-radiation source to be made and filters out any other signals produced by different radiation sources both inside and outside the apparatus. An electronic unit processes the stream of identical electric pulses into a stream of random numbers.
    Type: Application
    Filed: April 22, 2002
    Publication date: January 23, 2003
    Inventors: Aleksandr Figotin, Ilya Vitebskiy, Vadim Popovich, Gennady Stetsenko, Stanislav Molchanov, Alexander Gordon, Joseph Quinn, Nicholas Stavrakas
  • Random number generator based on directional randomness associated with naturally occurring random events, and method therefor
    Patent number: 5987483
    Abstract: A random number generator based on naturally occurring events in which directional randomness of radioactivity is exploited to generate a random number sequence. Radiation emissions from a radiation source are detected at different spatial locations about the radiation source. A unique numerical value is assigned to radiation detected at the different spatial locations. A random number sequence comprising numerical values is generated depending upon which spatial location radiation is detected.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: November 16, 1999
    Assignee: Leybold Systems GmbH
    Inventors: Jamie Edelkind, Ilya M. Vitebskiy, Alexander Figotin, Vadim Popovich