Patents by Inventor Yaroslav A. Urzhumov

Yaroslav A. Urzhumov 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: 10411349
    Abstract: The present disclosure provides a system and methods for mitigating, or reducing, the intermodulation of an adaptive antenna array's radiating elements. A tunable element may be used with a bias component to increase linearity of the system. These tunable elements may modify a radiating element's capacitance or damping rate. Adjusting the shape of the radiating element or using switches may also modify the resonance strength. Variable couplers may further be added to a system to reduce intermodulation. An adaptive antenna array using the techniques described herein may have all or some of the elements co-located.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: September 10, 2019
    Assignee: Elwha LLC
    Inventors: Eric J. Black, Brian Mark Deutsch, Alexander Remley Katko, Melroy Machado, Jay Howard McCandless, Yaroslav A. Urzhumov
  • Patent number: 10411343
    Abstract: Described embodiments include an electromagnetic beam steering apparatus. The apparatus includes a first planar component including a first artificially structured effective media having a first tangential refractive index gradient configured to deflect incident electromagnetic beams at a first deflection angle. The apparatus includes a second planar component includes a second artificially structured effective media having a second tangential refractive index gradient configured to deflect incident electromagnetic beams at a second deflection angle. The apparatus includes an electromagnetic beam steering structure configured to independently rotate the first planar component and the second planar component about a coaxial axis such that an electromagnetic beam incident on the first planar component exits the second planar component as a steered electromagnetic beam.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: September 10, 2019
    Assignee: Elwha LLC
    Inventors: Tom Driscoll, Roderick A. Hyde, Muriel Y. Ishikawa, Jordin T. Kare, Nathan P. Myhrvold, Tony S. Pan, Clarence T. Tegreene, Yaroslav A. Urzhumov, Lowell L. Wood, Jr., Victoria Y. H. Wood
  • Publication number: 20190273298
    Abstract: The present disclosure provides systems and methods associated with mode conversion for electromagnetic field modification. A mode converting structure (holographic metamaterial) is formed with a distribution of dielectric constants chosen to convert an electromagnetic radiation pattern from a first mode to a second mode to attain a target electromagnetic radiation pattern that is different from the input electromagnetic radiation pattern. A solution to a holographic equation provides a sufficiently accurate approximation of a distribution of dielectric constants that can be used to form a mode converting device for use with one or more transmission lines, such as waveguides. One or more optimization algorithms can be used to improve the efficiency of the mode conversion.
    Type: Application
    Filed: March 5, 2019
    Publication date: September 5, 2019
    Inventors: TOM DRISCOLL, John Desmond Hunt, Nathan Ingle Landy, David R. Smith, Yaroslav A. Urzhumov
  • Patent number: 10389179
    Abstract: Described embodiments include a system and method. An antenna is configured to implement at least two selectable radiative electromagnetic field spatial distributions. Each selectable radiative electromagnetic field spatial distributions respectively has a bounding surface that describes a specified power density in the radiative electromagnetic field. A sensor circuit is configured to detect a presence of an object within the bounding surface of an implemented radiative electromagnetic field. A countermeasure circuit is configured to select a response to the detected presence of the object within the bounding surface of the implemented radiative electromagnetic field.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: August 20, 2019
    Assignee: The Invention Science Fund I, LLC
    Inventors: Russell J. Hannigan, Guy Shlomo Lipworth, Matthew S. Reynolds, Yaroslav A. Urzhumov
  • Patent number: 10374669
    Abstract: Disclosed are antenna systems and related methods. An antenna system includes a plurality of near-end electromagnetic (EM) radiating elements, a tunable medium, and control circuitry. The tunable medium is positioned relative to the plurality of near-end EM radiating elements and a plurality of far-end EM radiating elements to scatter EM radiation transmitted between the plurality of near-end EM radiating elements and the plurality of far-end EM radiating elements. The control circuitry includes a controller operably coupled to the tunable medium. A method includes modifying EM properties of the tunable medium to modify the EM radiation transmitted between the plurality of near-end EM radiating elements and the plurality of far-end EM radiating elements.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: August 6, 2019
    Assignee: Elwha LLC
    Inventors: Clarence T. Tegreene, Yaroslav A. Urzhumov
  • Patent number: 10361481
    Abstract: Inter-element couplings between radiative elements of an antenna can be reduced by increasing resonant frequencies for first selected radiative elements and decreasing resonant frequencies for second selected radiative elements. In some approaches, the radiative elements are coupled to a waveguide and the antenna configuration is a hologram that relates a reference wave of the waveguide to a radiated wave of the antenna. In some approaches, the antenna configuration is modified by identifying stationary points of the hologram and then staggering resonant frequencies for radiative elements within neighborhoods of the stationary points.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: July 23, 2019
    Assignee: The Invention Science Fund I, LLC
    Inventors: Eric J. Black, Brian Mark Deutsch, Alexander Remley Katko, Melroy Machado, Jay Howard McCandless, Yaroslav A. Urzhumov
  • Patent number: 10359513
    Abstract: A coded aperture sensing system includes a tunable coding aperture positioned relative to one or more electromagnetic (EM) detectors and voxels to scatter EM radiation traveling from the voxels towards the EM detectors. The system also includes a controller configured to determine EM fields at each of the voxels. A method includes determining a desired aggregate coding matrix of the tunable coding aperture, determining control parameters corresponding to the desired aggregate coding matrix, applying sequentially each of the control parameters to tunable inputs of the tunable coding aperture, and determining the EM fields at each of the voxels. Determining the EM fields includes determining the EM fields at least in part as a function of EM fields detected at the EM detectors responsive to each of the controls being applied to the tunable inputs of the tunable coding aperture.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: July 23, 2019
    Assignee: Elwha LLC
    Inventor: Yaroslav A. Urzhumov
  • Patent number: 10349864
    Abstract: Methods and system for performing magnetic induction tomography imaging of an object are provided. An apparatus includes an array of unit cells and a control circuit coupled to the array of unit cells. The array of unit cells can generate a first magnetic field using an excitation pattern in the direction of a target object and sense a second magnetic field induced in the target object by the first magnetic field. The control circuit can determine a minimum of the first magnetic field. The minimum may correspond to a higher conductivity region of the target object. The control circuit can adjust the excitation pattern based on the higher conductivity region of the target object.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: July 16, 2019
    Assignee: Elwha LLC
    Inventors: Tom Driscoll, David R. Smith, Yaroslav A. Urzhumov
  • Publication number: 20190215948
    Abstract: According to various embodiments, heat can be dissipated from a heat producing component mounted on a first side of a printed circuit board through a securing post extending out of the first side of the printed circuit board. The securing post can be configured to attach to a heat sink through a fastening mechanism. Subsequently, the securing post can transfer heat received from the heat producing component to the heat sink as part of dissipating the heat from the heat product component. The securing post can receive heat from the heat producing component through a printed circuit board heat transfer path integrated as part of the printed circuit board. The heat transfer path can include one or more thermal vias and one or more thermally conductive layers used to transfer the heat from the heat producing component to the securing post.
    Type: Application
    Filed: January 9, 2018
    Publication date: July 11, 2019
    Inventors: Daniel Arnitz, Joseph Hagerty, Russell J. Hannigan, Guy S. Lipworth, David R. Nash, Matthew S. Reynolds, Yaroslav A. Urzhumov
  • Patent number: 10333219
    Abstract: Antenna systems and related methods are disclosed. An antenna system includes an antenna controller configured to operably couple to an array of electromagnetic (EM) scattering elements. The controller is configured to determine a performance parameter of the antenna system for a plurality of different combinations of different spatial holographic phases and effective mode indices having different modulation patterns corresponding thereto, and select one of the modulation patterns based on the performance parameter corresponding thereto. A method includes storing data indicating a modulation pattern determined based on a spatial holographic phase and an effective mode index for each of a plurality of different main beam angles from the antenna, and controlling the antenna to operate with a main beam pointed in each of the plurality of different main beam angles by controlling the antenna to operate in each modulation pattern corresponding to the plurality of main beam angles.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: June 25, 2019
    Assignee: The Invention Science Fund I, LLC
    Inventors: Eric J. Black, Brian Mark Deutsch, Alexander Remley Katko, Melroy Machado, Jay Howard McCandless, Yaroslav A. Urzhumov
  • Publication number: 20190175899
    Abstract: Embodiments disclosed herein relate to a garment system including at least one sensor and at least one actuator that operates responsive to sensing feedback from the at least one sensor to cause a flexible compression garment to selectively constrict or selectively dilate, thereby compressing or relieving compression against at least one body part of a subject. Such selective constriction or dilation can improve muscle functioning or joint functioning during use of motion-conducive equipment, such as an exercise bike or rowing machine.
    Type: Application
    Filed: February 21, 2019
    Publication date: June 13, 2019
    Inventors: Roderick A. Hyde, Muriel Y. Ishikawa, Jordin T. Kare, Max N. Mankin, Nathan P. Myhrvold, Tony S. Pan, Robert C. Petroski, Elizabeth A. Sweeney, Clarence T. Tegreene, Nicholas W. Touran, Yaroslav A. Urzhumov, Lowell L. Wood, JR., Victoria Y.H. Wood
  • Publication number: 20190181696
    Abstract: According to various embodiments, a non-linear RF receiver including non-linear components is configured to receive RF energy. The non-linear RF receiver is coupled to an array of RF antennas having configuration parameters that vary across the array. The varied configuration parameters can be selected to reduce an amount of RF energy that is scatter, reflected, or re-radiated by the array in response to incident RF energy at the array of RF antennas. In various embodiments, the non-linear components of the non-linear RF receiver can have non-linear component configuration parameters that vary across the non-linear receiver. The varied non-linear component parameters can be selected to reduce an amount of RF energy that is re-radiated in response to incident RF energy.
    Type: Application
    Filed: December 12, 2017
    Publication date: June 13, 2019
    Inventors: Daniel Arnitz, Joseph Hagerty, Russell J. Hannigan, Guy S. Lipworth, Matthew S. Reynolds, Yaroslav A. Urzhumov
  • Publication number: 20190173324
    Abstract: System and methods are described herein for providing wireless power to a target device, such as a laptop computer, a mobile phone, a vehicle, robot, or an unmanned aerial vehicle or system (UAV) or (UAS). A tunable multi-element transmitter may transmit electromagnetic radiation (EMR) to the target device using any of a wide variety of frequency bands. A location determination subsystem and/or range determination subsystem may determine a relative location, orientation, and/or rotation of the target device. For a target device within a distance range for which a smallest achievable waist of the Gaussian beam of the EMR at an operational frequency is smaller than the multi-element EMR receiver of the target device, a non-Gaussian beamform may be determined to increase efficiency, decrease overheating, reduce spillover, increase total power output of rectenna receivers on the target device, or achieve another target power delivery goal.
    Type: Application
    Filed: December 5, 2017
    Publication date: June 6, 2019
    Inventors: Daniel Arnitz, Jeffrey A. Bowers, Joseph A. Hagerty, Russell J. Hannigan, Guy S. Lipworth, David R. Nash, Matthew S. Reynolds, Clarence T. Tegreene, Yaroslav A. Urzhumov
  • Publication number: 20190151017
    Abstract: Described embodiments include a system and a method. A system includes an electromagnetic structure having a surface and a radiofrequency electromagnetic field source. The field source includes electronically controllable, artificially structured electromagnetic unit cells configured to create quasi-static electromagnetic fields within the electromagnetic structure. Each unit cell is responsive to a control signal. A selector circuit selects a quasi-static electromagnetic field pattern creating a high contrast electric field in a subwavelength electromagnetic cavity and is defined by the surface of the electromagnetic structure and an exterior surface of a perturbing object. The high contrast electric field has a power density that is localized to a volume adjoining the exterior surface of the perturbing object. A field pattern implementation circuit generates the control signal assigning electromagnetic field characteristic to each of the electromagnetic unit cells.
    Type: Application
    Filed: October 8, 2018
    Publication date: May 23, 2019
    Applicant: Elwha LLC
    Inventor: Yaroslav A. Urzhumov
  • Publication number: 20190154918
    Abstract: According to various embodiments, an array of elements forms an artificially-structured material. The artificially-structured material can also include an array of tuning mechanisms included as part of the array of elements that are configured to change material properties of the artificially-structured material on a per-element basis. The tuning mechanisms can change the material properties of the artificially-structured material by changing operational properties of the elements in the array of elements on a per-element basis based on one or a combination of stimuli detected by sensors included in the array of tuning mechanisms, programmable circuit modules included as part of the array of tuning mechanisms, data stored at individual data stores included as part of the array of tuning mechanisms, and communications transmitted through interconnects included as part of the array of elements.
    Type: Application
    Filed: December 12, 2017
    Publication date: May 23, 2019
    Inventors: Daniel Arnitz, Patrick Bowen, Seyedmohammadreza Faghih Imani, Joseph Hagerty, Roderick A. Hyde, Edward K.Y. Jung, Guy S. Lipworth, Nathan P. Myhrvold, David R. Smith, Clarence T. Tegreene, Yaroslav Urzhumov, Lowell L. Wood, JR.
  • Publication number: 20190140350
    Abstract: The present technology pertains to a system and method of operation of a metamaterial phase shifter having various use applications. In one aspect of the present disclosure, a phase shifter includes a network of tunable impedance elements and a controller. The controller is coupled to the network of tunable impedance elements and configured to receive a phase shift input value and determine a corresponding tuning voltage to be supplied to each tunable impedance element of the network of tunable impedance elements based on the phase shift input value, the network of tunable impedance element being configured to shift a phase of an input signal based on tuning voltages supplied to the network of tunable impedance elements by the controller.
    Type: Application
    Filed: November 8, 2017
    Publication date: May 9, 2019
    Inventors: Yaroslav A. Urzhumov, Matthew S. Reynolds, Guy S. Lipworth, Russell J. Hannigan, Daniel Amitz, Joseph Hagerty
  • Publication number: 20190131704
    Abstract: A conversion device for converting between electric power and electromagnetic waves, such as an RF antenna, may be fitted with an intermediary holographic lens to modify a radiation pattern between an electromagnetic radiation (EMR) reflector to reflect EMR and an EMR feed. The holographic lens may modify a performance metric associated with the conversion device. The holographic lens may have a volumetric distribution of dielectric constants. For example, a voxel-based discretization of the distribution of dielectric constants can be used to generate the holographic lens.
    Type: Application
    Filed: November 1, 2017
    Publication date: May 2, 2019
    Inventor: Yaroslav A. Urzhumov
  • Publication number: 20190104421
    Abstract: In one embodiment, a source device includes one or more tunable elements associated with an antenna. The source device is operable to modulate an impedance of one or more tunable elements based on a sequence of tuning vectors, measure a reference signal amplitude for each tuning vector, and determine field amplitudes for an array of reference points that circumscribe at least a portion of the source device based on the reference signal amplitude for each tuning vector. The source device is further operable to determine a target tuning vector that defines a target radiation pattern based on the field amplitudes, and transmit a target signal to a target device based on the target radiation pattern.
    Type: Application
    Filed: October 2, 2017
    Publication date: April 4, 2019
    Inventors: Yaroslav A. Urzhumov, Matthew S. Reynolds, Guy S. Lipworth, Russell J. Hannigan, Daniel Arnitz, Joseph Hagerty
  • Patent number: 10249950
    Abstract: In some embodiments, an antenna system includes antenna elements for transmitting and/or receiving electromagnetic radiation. The antenna elements may be connected to a feed via a plurality of tunable impedance elements. At least some of the tunable impedance elements may have nonlinear responses to impedance tuning that can be numerically approximated by nonlinear impedance-tuning parameter curves with a cumulative number of selectable nonlinear coefficients. Control inputs to nonlinearly vary impedance values of the tunable impedance elements allow for the selection of distinct impedance patterns that correspond to distinct field patterns attainable by the antenna system. The number of field patterns attainable is a function of the number of control inputs and a cumulative number of selectable nonlinear coefficients. Thus, a selection of tunable impedance elements and control inputs may be made to attain a target number of field patterns to serve a desired coverage area.
    Type: Grant
    Filed: September 16, 2017
    Date of Patent: April 2, 2019
    Assignee: Searete LLC
    Inventors: Daniel Arnitz, Joseph Hagerty, Russell J. Hannigan, Guy S. Lipworth, Matthew S. Reynolds, Yaroslav A. Urzhumov
  • Publication number: 20190097460
    Abstract: The present disclosure provides system and methods for optimizing the tuning of impedance elements associate with sub-wavelength antenna elements to attain target radiation and/or field patterns. A scattering matrix (S-Matrix) of field amplitudes for each of a plurality of modeled lumped ports, N, may be determined that includes a plurality of lumped antenna ports, Na, with impedance values corresponding to the impedance values of associated impedance elements and at least one modeled external port, Ne, located external to the antenna system at a specified radius vector. Impedance values may be identified through an optimization process, and the impedance elements may be tuned (dynamically or statically) to attain a specific target radiation pattern.
    Type: Application
    Filed: August 28, 2018
    Publication date: March 28, 2019
    Inventors: Eric J. Black, Brian Mark Deutsch, Alexander Remley Katko, Melroy Machado, Jay Howard McCandless, Yaroslav A. Urzhumov