Patents by Inventor Oleg Ivanov

Oleg Ivanov 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).

  • Patent number: 10233780
    Abstract: A method of repairing a casing for a gas turbine engine, wherein the casing has a wall extending generally axially, and between at least one radially extending flange, the radially extending flange being formed with a plurality of bolt holes, includes the steps of removing a portion of the flange including at least one bolt hole. The removed portion is associated with a defect and a remaining portion of the flange includes at least one non-removed bolt hole. A replacement portion is obtained to replace the removed portion. The replacement portion is secured in an opening left in the flange by the removed portion. A repaired gas turbine engine casing is also disclosed.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: March 19, 2019
    Assignee: United Technologies Corporation
    Inventors: Oleg Ivanov, Derek W. Anderson
  • Patent number: 10032521
    Abstract: A method and system are used to generate random values for Physical Unclonable Function (PUF) for use in cryptographic applications. A PUF value generation apparatus comprises two dielectric breakdown based anti-fuses and at least one current limiting circuit connected between anti-fuses and power rails. Two anti-fuses are connected in parallel for value generation in programming by applying high voltage to both anti-fuses at the same time. Time for dielectric breakdown under high voltage stress is of random nature and therefore unique for each anti-fuse cell. Therefore the random time to breakdown causes one cell to break before another, causing high breakdown current through the broken cell. Once high breakdown current through one broken or programmed cell is established, a voltage drop across a current limiting circuit leads to decreased voltage across both cells, thereby slowing the time dependent breakdown process in the second cell and preventing it from breakage under programming conditions.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: July 24, 2018
    Assignee: Synopsys, Inc.
    Inventors: Grigori Grigoriev, Roman Gavrilov, Oleg Ivanov
  • Patent number: 9856753
    Abstract: A case for a gas turbine engine incudes a radial flange with a partial scallop along an inner diameter of the radial flange. A case assembly for a gas turbine engine incudes a first case with a first radial flange with a partial scallop along an inner diameter of the first radial flange, the partial scallop adjacent to a first aperture through the first radial flange and a second case with a second radial flange with a second aperture through the second radial flange, the second radial flange mountable to the first radial flange at an interface such that the second aperture is axially aligned with the first aperture and a seal lip that extends from the second case interfaces with said first case at a longitudinal interface.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: January 2, 2018
    Assignee: United Technologies Corporation
    Inventors: Wai Tuck Chow, Oleg Ivanov, Ron I Prihar
  • Patent number: 9796055
    Abstract: A method of repairing a turbine engine case includes the steps of removing worn material from a retention hook in a casing, and inserting an insert into a recess within the hook.
    Type: Grant
    Filed: February 13, 2014
    Date of Patent: October 24, 2017
    Assignee: United Technologies Corporation
    Inventors: Derek W. Anderson, Oleg Ivanov, Michael J. Madel
  • Publication number: 20170200508
    Abstract: A method and system are used to generate random values for Physical Unclonable Function (PUF) for use in cryptographic applications. A PUF value generation apparatus comprises two dielectric breakdown based anti-fuses and at least one current limiting circuit connected between anti-fuses and power rails. Two anti-fuses are connected in parallel for value generation in programming by applying high voltage to both anti-fuses at the same time. Time for dielectric breakdown under high voltage stress is of random nature and therefore unique for each anti-fuse cell. Therefore the random time to breakdown causes one cell to break before another, causing high breakdown current through the broken cell. Once high breakdown current through one broken or programmed cell is established, a voltage drop across a current limiting circuit leads to decreased voltage across both cells, thereby slowing the time dependent breakdown process in the second cell and preventing it from breakage under programming conditions.
    Type: Application
    Filed: December 30, 2016
    Publication date: July 13, 2017
    Inventors: Grigori GRIGORIEV, Roman GAVRILOV, Oleg IVANOV
  • Publication number: 20160363004
    Abstract: A case for a gas turbine engine incudes a radial flange with a partial scallop along an inner diameter of the radial flange.
    Type: Application
    Filed: June 10, 2015
    Publication date: December 15, 2016
    Inventors: Wai Tuck Chow, Oleg Ivanov, Ron I. Prihar
  • Publication number: 20160153313
    Abstract: A method of repairing a casing for a gas turbine engine, wherein the casing has a wall extending generally axially, and between at least one radially extending flange, the radially extending flange being formed with a plurality of bolt holes, includes the steps of removing a portion of the flange including at least one bolt hole. The removed portion is associated with a defect and a remaining portion of the flange includes at least one non-removed bolt hole. A replacement portion is obtained to replace the removed portion. The replacement portion is secured in an opening left in the flange by the removed portion. A repaired gas turbine engine casing is also disclosed.
    Type: Application
    Filed: June 23, 2014
    Publication date: June 2, 2016
    Inventors: Oleg Ivanov, Derek W. Anderson
  • Publication number: 20160132948
    Abstract: Computer-implemented methods for generating quotes are provided herein. Questions associated with service request parameters of a type of service can be presented. Input indicative of values for the service request parameters can be received. The values for the service request parameters can be associated with a service request. Service listings can be provided upon memory. Each of the service listings can be associated with a service provider, service provider rules for the service provider, and price parameters. The values for the service request parameters can be compared with the service provider rules. The service request can be matched to matching listings of the service listings based upon the service request parameters and the service provider rules that are compared. Quotes for the matching listings of the service listings can be generated. The quotes can be calculated using the price parameters associated with the matching listings of the service listings.
    Type: Application
    Filed: November 10, 2015
    Publication date: May 12, 2016
    Inventors: Dmitri Saveliev, Oleg Ivanov
  • Publication number: 20150023125
    Abstract: This invention provides an improved method of securing a tea bag within a body of liquid in a beverage container. The invention is a utensil which is characterized by a pinching/grasping area at one end in which to hold a tea bag, with a wedging area along the side closer to the other end in which to secure the string of a tea bag.
    Type: Application
    Filed: July 19, 2013
    Publication date: January 22, 2015
    Inventors: Oleg Ivanov, Peter Oleg Ivanov
  • Publication number: 20140234098
    Abstract: A method of repairing a turbine engine case includes the steps of removing worn material from a retention hook in a casing, and inserting an insert into a recess within the hook.
    Type: Application
    Filed: February 13, 2014
    Publication date: August 21, 2014
    Applicant: United Technologies Corporation
    Inventors: Derek W. Anderson, Oleg Ivanov, Michael J. Madel
  • Patent number: 7424706
    Abstract: Systems and methods are described that enable patching of security vulnerabilities in binary files. The detection and patching of vulnerable binary files is automatic, reliable, regression free, and comprehensive across networks on an unlimited scale. These advantages can be realized in various ways including, for example, by leveraging current anti-virus infrastructure that is widely deployed across the Internet. Reliable discovery of vulnerable binary files (e.g., in operating systems, application programs, etc.) is achieved through the use of binary signatures that have been associated with discovered security vulnerabilities. A divergence of security patches away from conventional service packs provides for the possibility of production of regression-free fixes for security vulnerabilities in binary files.
    Type: Grant
    Filed: July 16, 2003
    Date of Patent: September 9, 2008
    Assignee: Microsoft Corporation
    Inventors: Oleg Ivanov, Sergei Ivanov
  • Patent number: 7202478
    Abstract: A scintillation spectrometer provides improved resolution by ensuring that photons generated by scintillation events occurring in different locations within the scintillation material generate similar light profiles on the photo-detector, thereby making the output signal less sensitive to the initial interaction site and enabling more effective de-convolution of raw data. This is achieved in different ways, such as by: limiting the exit window of the scintillation crystal, introducing a spacer between the scintillation crystal and the detector window, or providing a crystal that is longer than necessary to stop gamma rays.
    Type: Grant
    Filed: September 2, 2005
    Date of Patent: April 10, 2007
    Assignee: Symetrica Limited
    Inventors: David Ramsden, Ling-Jian Meng, Oleg Ivanov, Sergei Ignatov
  • Publication number: 20060110546
    Abstract: The invention relates to carbon deposition by decomposing gaseous compounds with the aid of the SHF discharge plasma and can be used, for example, for producing polycrystalline diamond films (plates), which are used for producing output windows of power SHF sources, for example gyrotrons. Said invention ensures a high speed deposition of the high quality diamond films (having a loss-tangent angle ? equal to or less than 3×10?5 on supports whose diameter is equal to or higher than 100 mm. For this purpose, a SHF discharge is initiated in a gas mixture which is arranged in a reaction chamber and contains at least hydrogen and hydrocarbon. Afterwards, said gas mixture is activated by producing a stable nonequilibrium plasma with the aid of SHF radiation having a frequency f which is many times higher than a commonly used frequency of 2.45 GHz, for example 30 GHz.
    Type: Application
    Filed: September 18, 2003
    Publication date: May 25, 2006
    Inventors: Anatoly Vikharev, Aleksey Gorbachev, Aleksandr Litvak, Juriy Bykov, Grigory Denisov, Oleg Ivanov, Vladimir Koldanov
  • Publication number: 20060027754
    Abstract: A scintillation spectrometer provides improved resolution by ensuring that photons generated by scintillation events occurring in different locations within the scintillation material generate similar light profiles on the photo-detector, thereby making the output signal less sensitive to the initial interaction site and enabling more effective de-convolution of raw data. This is achieved in different ways, such as by: limiting the exit window of the scintillation crystal, introducing a spacer between the scintillation crystal and the detector window, or providing a crystal that is longer than necessary to stop gamma rays.
    Type: Application
    Filed: September 2, 2005
    Publication date: February 9, 2006
    Inventors: David Ramsden, Ling-Jian Meng, Oleg Ivanov, Sergei Ignatov
  • Patent number: 6940071
    Abstract: Different geometries of scintillation spectrometers are disclosed which provide improved resolution over prior art scintillation spectrometers. By ensuring that photons generated by scintillation events occurring in different locations within the scintillation material generate similar light profiles on the photo-detector, the output signal is made less sensitive to the initial interaction site. This can be achieved in a number of ways, such as: by limiting the exit window of the scintillation crystal to a smaller detector, by introducing an optical spacer (94) between the scintillation crystal and detector (99), and/or by making the crystal longer than necessary to stop the gamma rays. A principal advantage of these new geometries is that deconvolution of the raw-data is more effective, thus improving resolution.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: September 6, 2005
    Assignee: University of Southampton
    Inventors: David Ramsden, Ling-Jian Meng, Oleg Ivanov, Sergei Ignatov
  • Publication number: 20050015760
    Abstract: Systems and methods are described that enable patching of security vulnerabilities in binary files. The detection and patching of vulnerable binary files is automatic, reliable, regression free, and comprehensive across networks on an unlimited scale. These advantages can be realized in various ways including, for example, by leveraging current anti-virus infrastructure that is widely deployed across the Internet. Reliable discovery of vulnerable binary files (e.g., in operating systems, application programs, etc.) is achieved through the use of binary signatures that have been associated with discovered security vulnerabilities. A divergence of security patches away from conventional service packs provides for the possibility of production of regression-free fixes for security vulnerabilities in binary files.
    Type: Application
    Filed: July 16, 2003
    Publication date: January 20, 2005
    Inventors: Oleg Ivanov, Sergei Ivanov
  • Publication number: 20040000645
    Abstract: Different geometries of scintillation spectrometer are disclosed which provide improved resolution over prior art scintillation spectrometers. By ensuring that photons generated by scintillation events occurring in different locations within the scintillation material generate similar light profiles on the photo-detector, the output signal is made less sensitive to the initial interaction site. This can be achieved in a number of ways, such as: by limiting the exit window of the scintillation crystal to a smaller detector, by introducing an optical spacer (94) between the scintillation crystal and detector (99), and/or by making the crystal longer than necessary to stop the gamma rays. A principal advantage of these new geometries is that deconvolution of the raw-data is more effective, thus improving resolution.
    Type: Application
    Filed: April 10, 2003
    Publication date: January 1, 2004
    Inventors: David Ramsden, Ling-Jian Meng, Oleg Ivanov, Sergei Ignatov