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: 8997170Abstract: 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: GrantFiled: April 10, 2007Date of Patent: March 31, 2015Assignee: Shared Spectrum CompanyInventors: Filip Perich, Mark A. McHenry, Peter A. Tenhula
-
Patent number: 8793791Abstract: 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: GrantFiled: November 1, 2011Date of Patent: July 29, 2014Assignee: Shared Spectrum CompanyInventors: Eugene Livsics, Mark A McHenry, Dmitry Dain, Karl Steadman, Olga Ritterbush
-
Patent number: 8755754Abstract: 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: GrantFiled: October 24, 2012Date of Patent: June 17, 2014Assignee: Shared Spectrum CompanyInventors: Eugene Livsis, Mark A. McHenry, Dmitry Dain, Karl Steadman, Olga Ritterbush
-
Patent number: 8559301Abstract: 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: GrantFiled: September 9, 2011Date of Patent: October 15, 2013Assignee: Shared Spectrum CompanyInventors: Mark A. McHenry, Dmitry Dain, Jevgenijs Livsics, Karl Steadman, Olga Ritterbush
-
Publication number: 20130072128Abstract: 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: ApplicationFiled: October 24, 2012Publication date: March 21, 2013Inventors: Eugene Livsics, Mark A. McHenry, Dmitry Dain, Karl Steadman, Olga Ritterbush
-
Patent number: 8184653Abstract: 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: GrantFiled: August 15, 2007Date of Patent: May 22, 2012Assignee: Shared Spectrum CompanyInventors: Dmitry Dain, Igor Bazarov, Jevgenijs Livsics, Mark A. McHenry
-
Publication number: 20120072986Abstract: 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: ApplicationFiled: November 1, 2011Publication date: March 22, 2012Applicant: Shared Spectrum CompanyInventors: Eugene Livsics, Mark A. McHenry, Dmitry Dain, Karl Steadman, Olga Ritterbush
-
Publication number: 20110319031Abstract: 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: ApplicationFiled: September 9, 2011Publication date: December 29, 2011Applicant: Shared Spectrum CompanyInventors: Mark A. McHenry, Dmitry Dain, Jevgenijs Livsics, Karl Steadman, Olga Ritterbush
-
Patent number: 8055204Abstract: 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: GrantFiled: August 15, 2007Date of Patent: November 8, 2011Assignee: Shared Spectrum CompanyInventors: Eugene Livsics, Mark A. McHenry, Dmitry Dain, Karl Steadman, Olga Ritterbush
-
Patent number: 8027249Abstract: 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: GrantFiled: October 18, 2006Date of Patent: September 27, 2011Assignee: Shared Spectrum CompanyInventors: Mark A. McHenry, Dmitry Dain, Jevgenijs Livsics, Karl Steadman, Olga Ritterbush
-
Publication number: 20090268619Abstract: 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: ApplicationFiled: August 15, 2007Publication date: October 29, 2009Applicant: SHARED SPECTRUM COMPANYInventors: Dmitry DAIN, Igor Bazarov, Jevgenijs Livsics, Mark A. McHenry
-
Publication number: 20090047920Abstract: 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: ApplicationFiled: August 15, 2007Publication date: February 19, 2009Applicant: SHARED SPECTRUM COMPANYInventors: Eugene LIVSICS, Mark A. McHenry, Dmitry Dain, Karl Steadman, Olga Ritterbush
-
Publication number: 20080163334Abstract: 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: ApplicationFiled: April 10, 2007Publication date: July 3, 2008Inventors: Filip Perich, Mark A. McHenry, Peter A. Tenhula
-
Publication number: 20080095042Abstract: 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: ApplicationFiled: October 18, 2006Publication date: April 24, 2008Inventors: Mark A. McHenry, Dmitry Dain, Jevgenijs Livsics, Karl Steadman, Olga Ritterbush
-
Patent number: 5976666Abstract: 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: GrantFiled: August 29, 1994Date of Patent: November 2, 1999Assignee: SRI InternationalInventors: Subhash C. Narang, Asutosh Nigam, Sei-ichi Yokoi, Robert C. Schmitt, Kenneth J. Harker, Mark A. McHenry
-
Patent number: 4901080Abstract: 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: GrantFiled: July 6, 1988Date of Patent: February 13, 1990Assignee: Northrop CorporationInventor: Mark A. McHenry
-
Patent number: 4879560Abstract: 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: GrantFiled: July 6, 1988Date of Patent: November 7, 1989Assignee: Northrop CorporationInventor: Mark A. McHenry