Patents by Inventor Catalin Ristea

Catalin Ristea 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).

  • Publication number: 20210209508
    Abstract: Methods and systems for disentangling discriminative features of a user of a device from motion signals and authenticating a user on a mobile device are provided. In at least one aspect of the methods and systems, each captured motion signal is divided into segments. The segments are then converted into translated segments using one or more trained translation algorithms. The segments and translated segments are then provided to a machine learning system. Discriminative features of the user are then extracted from the segments and translated segments with the processor using the machine learning system that applies one or more feature extraction algorithms.
    Type: Application
    Filed: January 6, 2021
    Publication date: July 8, 2021
    Inventors: Radu Tudor Ionescu, Nicolae-Catalin Ristea, Cristina Madalina Noaica, Radu-Mihai Vlad, Ionut Dumitran
  • Patent number: 7043970
    Abstract: The method utilizes a known good set of moisture content data for wood dried in a kiln under set conditions to estimate parameters for a Lognormal distribution which approximates the moisture content data for those conditions. The method creates control charts which monitor some of these parameters. The method also takes data from subsequent kiln charges and transforms it to be represented on the control charts. The method uses this representation to determine if the kiln is operating under out-of-control conditions.
    Type: Grant
    Filed: November 28, 2003
    Date of Patent: May 16, 2006
    Assignee: Wagner Electronic Products, Inc.
    Inventors: Catalin Ristea, James Alan Felsheim, Thomas Christopher Maness
  • Publication number: 20050115307
    Abstract: The method utilizes a known good set of moisture content data for wood dried in a kiln under set conditions to estimate parameters for a Lognormal distribution which approximates the moisture content data for those conditions. The method creates control charts which monitor some of these parameters. The method also takes data from subsequent kiln charges and transforms it to be represented on the control charts. The method uses this representation to determine if the kiln is operating under out-of-control conditions.
    Type: Application
    Filed: November 28, 2003
    Publication date: June 2, 2005
    Inventors: Catalin Ristea, James Felsheim, Thomas Maness