Patents by Inventor Qamar Shams
Qamar Shams 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).
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Patent number: 11399231Abstract: An extremely low frequency hydrophone includes a housing forming an interior space comprising a backchamber. The housing includes an opening to the interior space, and a side of the housing comprises a diaphragm plate. A backplate is disposed inside the housing adjacent the diaphragm plate, and an electronics unit including a preamplifier is disposed in the interior space. The hydrophone further includes dielectric liquid substantially filling the interior space. A passageway permits inert gas to be introduced into the dielectric liquid in the interior space of the housing.Type: GrantFiled: February 11, 2020Date of Patent: July 26, 2022Assignee: UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF NASAInventors: Qamar A. Shams, Allan J. Zuckerwar
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Publication number: 20210099793Abstract: An extremely low frequency hydrophone includes a housing forming an interior space comprising a backchamber. The housing includes an opening to the interior space, and a side of the housing comprises a diaphragm plate. A backplate is disposed inside the housing adjacent the diaphragm plate, and an electronics unit including a preamplifier is disposed in the interior space. The hydrophone further includes dielectric liquid substantially filling the interior space. A passageway permits inert gas to be introduced into the dielectric liquid in the interior space of the housing.Type: ApplicationFiled: February 11, 2020Publication date: April 1, 2021Inventors: Qamar A. Shams, Allan J. Zuckerwar
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Patent number: 10928549Abstract: Various embodiments may provide an airborne system for measuring meteorological parameters, including a high altitude unmanned aerial vehicle (UAV) formed completely or partially of closed-cell polyurethane foam. In various embodiments, the UAV may include extendable wings configured to extend and retract as the UAV climbs and descends to different altitude levels. In various embodiments, the UAV may include one or more infrasonic sensors and wind screening configured to measure one or more meteorological parameters, such as wind shear, seismic waves, magnetic storms, magnetohydrodynamic waves, severe weather, tornadoes, hurricanes, meteors, and lighting. The infrasonic sensors may be configured to determine wind shear at the local and regional level. In various embodiments, other meteorological sensors may also be included in/on the UAV in addition to the infrasonic sensors.Type: GrantFiled: November 15, 2018Date of Patent: February 23, 2021Assignee: UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF NASAInventors: Qamar A. Shams, Neil C. Coffey
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Patent number: 10802107Abstract: A method for recognizing infrasound events includes detecting infrasonic source using one or more microphone arrays each having three equally-spaced infrasound microphones. The method includes identifying, via a data acquisition system (DAS), a level of coherence of the detected infrasonic acoustic signals from each possible pair of microphones and recognizing the infrasound source using the coherence and a time history of the detected signals. The method may include estimating source properties via the DAS, including a magnitude, azimuth angle, and elevation angle, and executing a control action in response to the estimated properties. A system includes the array and the DAS. The array may be positioned above or below ground, and may be connected to one or more aircraft in some embodiments.Type: GrantFiled: January 19, 2018Date of Patent: October 13, 2020Assignee: UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF NASAInventors: Qamar A. Shams, John W. Stoughton, Allan J. Zuckerwar
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Patent number: 10392125Abstract: Systems and methods are disclosed for passively detecting air turbulence using one or more infrasonic sensors mounted on an aircraft. The system may include one or more infrasonic sensors that are mounted on the aircraft and configured to detect infrasound. The system may also include a processor configured to receive output signals from the one or more infrasonic sensors and detect air turbulence away from the aircraft based on the output signals received from the one or more infrasonic sensors. The detected air turbulence may include natural or man-made turbulence including wake turbulence, clear air turbulence, mountain waves, or events such as a rocket launch.Type: GrantFiled: May 22, 2017Date of Patent: August 27, 2019Assignee: UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF NASAInventor: Qamar A. Shams
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Publication number: 20190154874Abstract: Various embodiments may provide an airborne system for measuring meteorological parameters, including a high altitude unmanned aerial vehicle (UAV) formed completely or partially of closed-cell polyurethane foam. In various embodiments, the UAV may include extendable wings configured to extend and retract as the UAV climbs and descends to different altitude levels. In various embodiments, the UAV may include one or more infrasonic sensors and wind screening configured to measure one or more meteorological parameters, such as wind shear, seismic waves, magnetic storms, magnetohydrodynamic waves, severe weather, tornadoes, hurricanes, meteors, and lighting. The infrasonic sensors may be configured to determine wind shear at the local and regional level. In various embodiments, other meteorological sensors may also be included in/on the UAV in addition to the infrasonic sensors.Type: ApplicationFiled: November 15, 2018Publication date: May 23, 2019Inventors: QAMAR A. SHAMS, NEIL C. COFFEY
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Patent number: 10092269Abstract: An infrasonic stethoscope for monitoring physiological processes of a patient includes a microphone capable of detecting acoustic signals in the audible frequency bandwidth and in the infrasonic bandwidth (0.03 to 1000 Hertz), a body coupler attached to the body at a first opening in the microphone, a flexible tube attached to the body at a second opening in the microphone, and an earpiece attached to the flexible tube. The body coupler is capable of engagement with a patient to transmit sounds from the person, to the microphone and then to the earpiece.Type: GrantFiled: March 17, 2015Date of Patent: October 9, 2018Assignee: The United States of America as represented by the Administrator of NASAInventors: Qamar A. Shams, Allan J. Zuckerwar, Albert L. Dimarcantonio
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Patent number: 10036784Abstract: A magnetometer configured to measure low field strength magnetic fields is provided. Certain embodiments of the magnetometer include a cylindrical coil assembly having a variable permeability core and terminals disposed at both ends. A current source circuit may be operably connected to the terminals and configured to apply a voltage controlled current across the terminals. A voltage readout circuit may be operably connected to the terminals and configured to measure a voltage across the terminals due to the applied current from the current source. An inductance of the coil assembly directly varies as an ambient magnetic field strength varies a permeability of the variable permeability core, and a voltage across the terminals varies directly with the inductance such that the measured voltage across the terminals is a direct measure of the ambient magnetic field strength.Type: GrantFiled: April 1, 2015Date of Patent: July 31, 2018Assignee: THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF NASAInventors: Qamar A. Shams, John F. Sutton
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Publication number: 20180210065Abstract: A method for recognizing infrasound events includes detecting infrasonic source using one or more microphone arrays each having three equally-spaced infrasound microphones. The method includes identifying, via a data acquisition system (DAS), a level of coherence of the detected infrasonic acoustic signals from each possible pair of microphones and recognizing the infrasound source using the coherence and a time history of the detected signals. The method may include estimating source properties via the DAS, including a magnitude, azimuth angle, and elevation angle, and executing a control action in response to the estimated properties. A system includes the array and the DAS. The array may be positioned above or below ground, and may be connected to one or more aircraft in some embodiments.Type: ApplicationFiled: January 19, 2018Publication date: July 26, 2018Inventors: Qamar A. Shams, John W. Stoughton, Allan J. Zuckerwar
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Patent number: 9867591Abstract: An infrasonic stethoscope for monitoring physiological processes of a patient includes a microphone capable of detecting acoustic signals in the audible frequency bandwidth and in the infrasonic bandwidth (0.03 to 1000 Hertz), a body coupler attached to the body at a first opening in the microphone, a flexible tube attached to the body at a second opening in the microphone, and an earpiece attached to the flexible tube. The body coupler is capable of engagement with a patient to transmit sounds from the person, to the microphone and then to the earpiece.Type: GrantFiled: August 23, 2016Date of Patent: January 16, 2018Assignee: The United States of America as Represented by the Adminstrator of NASAInventors: Qamar A. Shams, Allan J. Zuckerwar, Albert L. Dimarcantonio
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Publication number: 20170334576Abstract: Systems and methods are disclosed for passively detecting air turbulence using one or more infrasonic sensors mounted on an aircraft. The system may include one or more infrasonic sensors that are mounted on the aircraft and configured to detect infrasound. The system may also include a processor configured to receive output signals from the one or more infrasonic sensors and detect air turbulence away from the aircraft based on the output signals received from the one or more infrasonic sensors. The detected air turbulence may include natural or man-made turbulence including wake turbulence, clear air turbulence, mountain waves, or events such as a rocket launch.Type: ApplicationFiled: May 22, 2017Publication date: November 23, 2017Inventor: Qamar A. Shams
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Publication number: 20170296138Abstract: An infrasonic stethoscope for monitoring physiological processes of a patient includes a microphone capable of detecting acoustic signals in the audible frequency bandwidth and in the infrasonic bandwidth (0.03 to 1000 Hertz), a body coupler attached to the body at a first opening in the microphone, a flexible tube attached to the body at a second opening in the microphone, and an earpiece attached to the flexible tube. The body coupler is capable of engagement with a patient to transmit sounds from the person, to the microphone and then to the earpiece.Type: ApplicationFiled: March 17, 2015Publication date: October 19, 2017Inventors: Qamar A. SHAMS, ALLAN J. ZUCKERWAR, ALBERT L. DIMARCANTONIO
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Patent number: 9620025Abstract: A wake vortex avoidance system includes a microphone array configured to detect low frequency sounds. A signal processor determines a geometric mean coherence based on the detected low frequency sounds. A display displays wake vortices based on the determined geometric mean coherence.Type: GrantFiled: April 17, 2015Date of Patent: April 11, 2017Assignee: The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration.Inventors: Qamar A. Shams, Allan J. Zuckerwar, Howard K. Knight
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Patent number: 9591417Abstract: The present invention is an extremely low frequency (ELF) microphone and acoustic measurement system capable of infrasound detection in a portable and easily deployable form factor. In one embodiment of the invention, an extremely low frequency electret microphone comprises a membrane, a backplate, and a backchamber. The backchamber is sealed to allow substantially no air exchange between the backchamber and outside the microphone. Compliance of the membrane may be less than ambient air compliance. The backplate may define a plurality of holes and a slot may be defined between an outer diameter of the backplate and an inner wall of the microphone. The locations and sizes of the holes, the size of the slot, and the volume of the backchamber may be selected such that membrane motion is substantially critically damped.Type: GrantFiled: February 20, 2013Date of Patent: March 7, 2017Assignee: THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATIONInventors: Qamar A. Shams, Allan J. Zuckerwar
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Publication number: 20160354055Abstract: An infrasonic stethoscope for monitoring physiological processes of a patient includes a microphone capable of detecting acoustic signals in the audible frequency bandwidth and in the infrasonic bandwidth (0.03 to 1000 Hertz), a body coupler attached to the body at a first opening in the microphone, a flexible tube attached to the body at a second opening in the microphone, and an earpiece attached to the flexible tube. The body coupler is capable of engagement with a patient to transmit sounds from the person, to the microphone and then to the earpiece.Type: ApplicationFiled: August 23, 2016Publication date: December 8, 2016Inventors: QAMAR A. SHAMS, ALLAN J. ZUCKERWAR, ALBERT L. DIMARCANTONIO
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Patent number: 9445779Abstract: An infrasonic stethoscope for monitoring physiological processes of a patient includes a microphone capable of detecting acoustic signals in the audible frequency bandwidth and in the infrasonic bandwidth (0.03 to 1000 Hertz), a body coupler attached to the body at a first opening in the microphone, a flexible tube attached to the body at a second opening in the microphone, and an earpiece attached to the flexible tube. The body coupler is capable of engagement with a patient to transmit sounds from the person, to the microphone and then to the earpiece.Type: GrantFiled: March 16, 2015Date of Patent: September 20, 2016Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Qamar A. Shams, Allan J. Zuckerwar, Albert L. Dimarcantonio
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Publication number: 20160139213Abstract: A magnetometer configured to measure low field strength magnetic fields is provided. Certain embodiments of the magnetometer include a cylindrical coil assembly having a variable permeability core and terminals disposed at both ends. A current source circuit may be operably connected to the terminals and configured to apply a voltage controlled current across the terminals. A voltage readout circuit may be operably connected to the terminals and configured to measure a voltage across the terminals due to the applied current from the current source. An inductance of the coil assembly directly varies as an ambient magnetic field strength varies a permeability of the variable permeability core, and a voltage across the terminals varies directly with the inductance such that the measured voltage across the terminals is a direct measure of the ambient magnetic field strength.Type: ApplicationFiled: April 1, 2015Publication date: May 19, 2016Inventors: QAMAR A. SHAMS, JOHN F. SUTTON
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Publication number: 20160095571Abstract: An infrasonic stethoscope for monitoring physiological processes of a patient includes a microphone capable of detecting acoustic signals in the audible frequency bandwidth and in the infrasonic bandwidth (0.03 to 1000 Hertz), a body coupler attached to the body at a first opening in the microphone, a flexible tube attached to the body at a second opening in the microphone, and an earpiece attached to the flexible tube. The body coupler is capable of engagement with a patient to transmit sounds from the person, to the microphone and then to the earpiece.Type: ApplicationFiled: March 16, 2015Publication date: April 7, 2016Inventors: Qamar A. Shams, Allan J. Zuckerwar, Albert L. Dimarcantonio
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Publication number: 20150316575Abstract: A wake vortex avoidance system includes a microphone array configured to detect low frequency sounds. A signal processor determines a geometric mean coherence based on the detected low frequency sounds. A display displays wake vortices based on the determined geometric mean coherence.Type: ApplicationFiled: April 17, 2015Publication date: November 5, 2015Inventors: Qamar A. Shams, ALLAN J. ZUCKERWAR, HOWARD K. KNIGHT
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Patent number: 8882049Abstract: An airfoil system includes an airfoil body and at least one flexible strip. The airfoil body has a top surface and a bottom surface, a chord length, a span, and a maximum thickness. Each flexible strip is attached along at least one edge thereof to either the top or bottom surface of the airfoil body. The flexible strip has a spanwise length that is a function of the airfoil body's span, a chordwise width that is a function of the airfoil body's chord length, and a thickness that is a function of the airfoil body's maximum thickness.Type: GrantFiled: June 13, 2008Date of Patent: November 11, 2014Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Qamar A. Shams, Tianshu Liu