Patents by Inventor Mark A. McHenry

Mark A. McHenry 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: 8997170
    Abstract: A device is disclosed that includes software components for executing actions and for controlling the device in order to conform to specified policies. The device includes a controller to deny or permit execution of actions. The controller monitors and interrupts execution of device's actions in order to determine whether an action violates a policy, policy rules, or if the action is prohibited by a policy. The controller also manages policies defined for the device. Each policy is translated into a language understandable by the controller and stored on the device. Each policy can be updated or changed dynamically. Additionally, each policy can securely be updated or changed remotely.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: March 31, 2015
    Assignee: Shared Spectrum Company
    Inventors: Filip Perich, Mark A. McHenry, Peter A. Tenhula
  • Patent number: 8793791
    Abstract: A method for classifying a signal is disclosed. The method can be used by a station or stations within a network to classify the signal as non-cooperative (NC) or a target signal. The method performs classification over channels within a frequency spectrum. The percentage of power above a first threshold is computed for a channel. Based on the percentage, a signal is classified as a narrowband signal. If the percentage indicates the absence of a narrowband signal, then a lower second threshold is applied to confirm the absence according to the percentage of power above the second threshold. The signal is classified as a narrowband signal or pre-classified as a wideband signal based on the percentage. Pre-classified wideband signals are classified as a wideband NC signal or target signal using spectrum masks.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: July 29, 2014
    Assignee: Shared Spectrum Company
    Inventors: Eugene Livsics, Mark A McHenry, Dmitry Dain, Karl Steadman, Olga Ritterbush
  • Patent number: 8755754
    Abstract: A method for classifying a signal is disclosed. The method can be used by a station or stations within a network to classify the signal as non-cooperative (NC) or a target signal. The method performs classification over channels within a frequency spectrum. The percentage of power above a first threshold is computed for a channel. Based on the percentage, a signal is classified as a narrowband signal. If the percentage indicates the absence of a narrowband signal, then a lower second threshold is applied to confirm the absence according to the percentage of power above the second threshold. The signal is classified as a narrowband signal or pre-classified as a wideband signal based on the percentage. Pre-classified wideband signals are classified as a wideband NC signal or target signal using spectrum masks.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: June 17, 2014
    Assignee: Shared Spectrum Company
    Inventors: Eugene Livsis, Mark A. McHenry, Dmitry Dain, Karl Steadman, Olga Ritterbush
  • Patent number: 8559301
    Abstract: Methods for using a detector to monitor and detect channel occupancy are disclosed. The detector resides on a station within a network using a framed format having a periodic time structure. When non-cooperative transmissions are detected by the network, the detector assesses the availability of a backup channel enabling migration of the network. The backup channel serves to allow the network to migrate transparently when the current channel becomes unavailable. The backup channel, however, could be occupied by another network that results in the migrating network interfering with the network already using the backup channel. Thus, the detector detects active transmission sources on the backup channel to determine whether the backup channel is occupied. Methods for using the detector include scheduling detection intervals asynchronously. The asynchronous detection uses offsets from a reference point within a frame.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: October 15, 2013
    Assignee: Shared Spectrum Company
    Inventors: Mark A. McHenry, Dmitry Dain, Jevgenijs Livsics, Karl Steadman, Olga Ritterbush
  • Publication number: 20130072128
    Abstract: A method for classifying a signal is disclosed. The method can be used by a station or stations within a network to classify the signal as non-cooperative (NC) or a target signal. The method performs classification over channels within a frequency spectrum. The percentage of power above a first threshold is computed for a channel. Based on the percentage, a signal is classified as a narrowband signal. If the percentage indicates the absence of a narrowband signal, then a lower second threshold is applied to confirm the absence according to the percentage of power above the second threshold. The signal is classified as a narrowband signal or pre-classified as a wideband signal based on the percentage. Pre-classified wideband signals are classified as a wideband NC signal or target signal using spectrum masks.
    Type: Application
    Filed: October 24, 2012
    Publication date: March 21, 2013
    Inventors: Eugene Livsics, Mark A. McHenry, Dmitry Dain, Karl Steadman, Olga Ritterbush
  • Patent number: 8184653
    Abstract: Systems and methods for configuring a network of radios for dynamic spectrum access are described. A network radio can include hardware and/or software modules for detecting a radio environment and negotiating common communications channels with a plurality of other radios in the network. Network radio behavior can be defined by a plurality of predefined policies which are used in combination with the information about the radio environment to select common operating parameters.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: May 22, 2012
    Assignee: Shared Spectrum Company
    Inventors: Dmitry Dain, Igor Bazarov, Jevgenijs Livsics, Mark A. McHenry
  • Publication number: 20120072986
    Abstract: A method for classifying a signal is disclosed. The method can be used by a station or stations within a network to classify the signal as non-cooperative (NC) or a target signal. The method performs classification over channels within a frequency spectrum. The percentage of power above a first threshold is computed for a channel. Based on the percentage, a signal is classified as a narrowband signal. If the percentage indicates the absence of a narrowband signal, then a lower second threshold is applied to confirm the absence according to the percentage of power above the second threshold. The signal is classified as a narrowband signal or pre-classified as a wideband signal based on the percentage. Pre-classified wideband signals are classified as a wideband NC signal or target signal using spectrum masks.
    Type: Application
    Filed: November 1, 2011
    Publication date: March 22, 2012
    Applicant: Shared Spectrum Company
    Inventors: Eugene Livsics, Mark A. McHenry, Dmitry Dain, Karl Steadman, Olga Ritterbush
  • Publication number: 20110319031
    Abstract: Methods for using a detector to monitor and detect channel occupancy are disclosed. The detector resides on a station within a network using a framed format having a periodic time structure. When non-cooperative transmissions are detected by the network, the detector assesses the availability of a backup channel enabling migration of the network. The backup channel serves to allow the network to migrate transparently when the current channel becomes unavailable. The backup channel, however, could be occupied by another network that results in the migrating network interfering with the network already using the backup channel. Thus, the detector detects active transmission sources on the backup channel to determine whether the backup channel is occupied. Methods for using the detector include scheduling detection intervals asynchronously. The asynchronous detection uses offsets from a reference point within a frame.
    Type: Application
    Filed: September 9, 2011
    Publication date: December 29, 2011
    Applicant: Shared Spectrum Company
    Inventors: Mark A. McHenry, Dmitry Dain, Jevgenijs Livsics, Karl Steadman, Olga Ritterbush
  • Patent number: 8055204
    Abstract: A method for classifying a signal is disclosed. The method can be used by a station or stations within a network to classify the signal as non-cooperative (NC) or a target signal. The method performs classification over channels within a frequency spectrum. The percentage of power above a first threshold is computed for a channel. Based on the percentage, a signal is classified as a narrowband signal. If the percentage indicates the absence of a narrowband signal, then a lower second threshold is applied to confirm the absence according to the percentage of power above the second threshold. The signal is classified as a narrowband signal or pre-classified as a wideband signal based on the percentage. Pre-classified wideband signals are classified as a wideband NC signal or target signal using spectrum masks.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: November 8, 2011
    Assignee: Shared Spectrum Company
    Inventors: Eugene Livsics, Mark A. McHenry, Dmitry Dain, Karl Steadman, Olga Ritterbush
  • Patent number: 8027249
    Abstract: Methods for using a detector to monitor and detect channel occupancy are disclosed. The detector resides on a station within a network using a framed format having a periodic time structure. When non-cooperative transmissions are detected by the network, the detector assesses the availability of a backup channel enabling migration of the network. The backup channel serves to allow the network to migrate transparently when the current channel becomes unavailable. The backup channel, however, could be occupied by another network that results in the migrating network interfering with the network already using the backup channel. Thus, the detector detects active transmission sources on the backup channel to determine whether the backup channel is occupied. Methods for using the detector include scheduling detection intervals asynchronously. The asynchronous detection uses offsets from a reference point within a frame.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: September 27, 2011
    Assignee: Shared Spectrum Company
    Inventors: Mark A. McHenry, Dmitry Dain, Jevgenijs Livsics, Karl Steadman, Olga Ritterbush
  • Publication number: 20090268619
    Abstract: Systems and methods for configuring a network of radios for dynamic spectrum access are described. A network radio can include hardware and/or software modules for detecting a radio environment and negotiating common communications channels with a plurality of other radios in the network. Network radio behavior can be defined by a plurality of predefined policies which are used in combination with the information about the radio environment to select common operating parameters.
    Type: Application
    Filed: August 15, 2007
    Publication date: October 29, 2009
    Applicant: SHARED SPECTRUM COMPANY
    Inventors: Dmitry DAIN, Igor Bazarov, Jevgenijs Livsics, Mark A. McHenry
  • Publication number: 20090047920
    Abstract: A method for classifying a signal is disclosed. The method can be used by a station or stations within a network to classify the signal as non-cooperative (NC) or a target signal. The method performs classification over channels within a frequency spectrum. The percentage of power above a first threshold is computed for a channel. Based on the percentage, a signal is classified as a narrowband signal. If the percentage indicates the absence of a narrowband signal, then a lower second threshold is applied to confirm the absence according to the percentage of power above the second threshold. The signal is classified as a narrowband signal or pre-classified as a wideband signal based on the percentage. Pre-classified wideband signals are classified as a wideband NC signal or target signal using spectrum masks.
    Type: Application
    Filed: August 15, 2007
    Publication date: February 19, 2009
    Applicant: SHARED SPECTRUM COMPANY
    Inventors: Eugene LIVSICS, Mark A. McHenry, Dmitry Dain, Karl Steadman, Olga Ritterbush
  • Publication number: 20080163334
    Abstract: A device is disclosed that includes software components for executing actions and for controlling the device in order to conform to specified policies. The device includes a controller to deny or permit execution of actions. The controller monitors and interrupts execution of device's actions in order to determine whether an action violates a policy, policy rules, or if the action is prohibited by a policy. The controller also manages policies defined for the device. Each policy is translated into a language understandable by the controller and stored on the device. Each policy can be updated or changed dynamically. Additionally, each policy can securely be updated or changed remotely.
    Type: Application
    Filed: April 10, 2007
    Publication date: July 3, 2008
    Inventors: Filip Perich, Mark A. McHenry, Peter A. Tenhula
  • Publication number: 20080095042
    Abstract: Methods for using a detector to monitor and detect channel occupancy are disclosed. The detector resides on a station within a network using a framed format having a periodic time structure. When non-cooperative transmissions are detected by the network, the detector assesses the availability of a backup channel enabling migration of the network. The backup channel serves to allow the network to migrate transparently when the current channel becomes unavailable. The backup channel, however, could be occupied by another network that results in the migrating network interfering with the network already using the backup channel. Thus, the detector detects active transmission sources on the backup channel to determine whether the backup channel is occupied. Methods for using the detector include scheduling detection intervals asynchronously. The asynchronous detection uses offsets from a reference point within a frame.
    Type: Application
    Filed: October 18, 2006
    Publication date: April 24, 2008
    Inventors: Mark A. McHenry, Dmitry Dain, Jevgenijs Livsics, Karl Steadman, Olga Ritterbush
  • Patent number: 5976666
    Abstract: Novel devices for providing shielding from and absorption of broadband electromagnetic radiation, and methods of manufacturing and using these devices, are disclosed. The device is comprised of a perforated electrical absorbing layer, containing conductive polymers, laminated to a metal plate. Additional layers may be incorporated into the device including one or more additional layers of electrical absorbing layers, magnetic absorbing layers and impedance matching layers.
    Type: Grant
    Filed: August 29, 1994
    Date of Patent: November 2, 1999
    Assignee: SRI International
    Inventors: Subhash C. Narang, Asutosh Nigam, Sei-ichi Yokoi, Robert C. Schmitt, Kenneth J. Harker, Mark A. McHenry
  • Patent number: 4901080
    Abstract: A test subject is mounted in front of a radar antenna for measurement of a radar cross-sectional signature of the test subject. The test subject is mounted on an electrically conductive rotator mounted coplanar with an electrically conductive shield, there being a clearance space between the rotator and the shield to allow for rotation of the rotator. An electrically conductive seal is disposed in a shelf of the front surface of the shield in the manner of a fairing to provide a smooth surface of the shield which covers the clearance space for minimizing reflections of radiation, and for deflecting any reflections of radiation from the antenna away from the antenna. A rotator rotates the platform, and a tilt mechanism tilts the shield for variation in elevation angle. The foregoing apparatus is mounted within an anechoic chamber.
    Type: Grant
    Filed: July 6, 1988
    Date of Patent: February 13, 1990
    Assignee: Northrop Corporation
    Inventor: Mark A. McHenry
  • Patent number: 4879560
    Abstract: Measurement of radar cross section is provided by a rotatable platform which supports a test subject to be measured, the rotatable platform and a rotator thereof being enclosed within a fixture configured as a body shaped as an airfoil. A second rotator rotates the fixture body to face a radar antenna which illuminates the test subject, the orientation of the fixture body being selected to minimize a radar cross section of the fixture body. The configuration of the generally airfoil shape minimizes radar cross section in a preferred direction of the body. A metallic seal in the form of a thin foil overlays an interface between the rotatable platform and a surface of the fixture in the manner of a fairing which reduces spurious reflections from the vicinity of the rotator, the seal being formed of a foil having a thickness substantially less than one-quarter wavelength of radiation of the antenna to inhibit generation of reflections from the seal.
    Type: Grant
    Filed: July 6, 1988
    Date of Patent: November 7, 1989
    Assignee: Northrop Corporation
    Inventor: Mark A. McHenry