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| Number | Title | Issue Date |
| 8102298 | Ultra-wideband radar waveform calibration for measurements of a heterogeneous material Embodiments of the disclosed technology comprise a ground penetrating radio device and methods of use for obtaining greater resolution. This is achieved by measuring the composition/reflection off a homogeneous material (e.g., metal plate), determining coefficients ... | 01/24/2012 |
| 8098185 | Millimeter and sub-millimeter wave portal In accordance with one embodiment of the present invention, a millimeter or sub-millimeter wave portal system is provided. Generally, the portal system comprises an electrooptic source and one or more millimeter or sub-millimeter wave detectors. The electrooptic sou... | 01/17/2012 |
| 8098186 | Through-the-obstacle radar system and method of operation There are provided a through-the-obstacle radar system and method of operating thereof comprising recording signals and/or derivatives thereof collected during a certain substantial monitoring period, and using the recorded information for generating patterns inform... | 01/17/2012 |
| 8098187 | Wide field of view millimeter wave imager An imager comprising a sphere of dielectric material and a geodesically configured substrate disposed adjacent said sphere. The geodesically configured substrate comprises a plurality of triangularly shaped elements, at least selected ones of the triangularly shaped... | 01/17/2012 |
| 8089390 | Sensor cart positioning system and method A movable platform has a front end, a back end, a longitudinal axis, and at least one axle oriented generally transverse to the longitudinal axis and located between the front and back ends for supporting wheels of the platform. A position sensor is affixed on the p... | 01/03/2012 |
| 8077072 | Static RF imaging for inside walls of a premises A system includes a radar unit configured to provide raw data from scanning an exterior of a structure; and a signal processing and imaging module configured to: process the raw data into markers of interior locations of the structure; and display an image of interi... | 12/13/2011 |
| 8072367 | Organically reactive cell for underground sensing (ORCUS) and system A movement detection system includes a microwave antenna able to transmit microwave frequency signals into a space. An electronics controller is connected to the microwave antenna, and is configured to continually measure the impedance of the microwave antenna while... | 12/06/2011 |
| 8068049 | Passive detection apparatus A passive detection device is disclosed comprising a plurality of antennas, receivers, and a digital beamformer, wherein the antennas and receivers are adapted to receive radiation of millimeter wavelengths from a near field region, to process and digitize it. The b... | 11/29/2011 |
| 8063813 | Active improvised explosive device (IED) electronic signature detection The present invention provides an apparatus and method of detecting, locating, and suppressing electronic devices, specifically IEDs. This RF emission measurement device in some embodiments can also be considered a system for RF emission measurement, location, and s... | 11/22/2011 |
| 8063814 | Beat-product radio imaging method (RIM) A beat-product radio imaging method (RIM) system uses a matched continuous wave (CW) transmitter and receiver to electronically image material in between. Signal attenuation measurements are taken from a number of different transmitter and receiver perspectives arou... | 11/22/2011 |
| 8054213 | Multiple beam directed energy system A method and apparatus for transmitting beams of electromagnetic energy. A plurality of beams having a first number of frequencies and a number of beams having a second number of frequencies are transmitted. The plurality of beams and the number of beams overlap eac... | 11/08/2011 |
| 8044838 | Methods and systems for determining the phase constant for a dielectric medium A method for determining a phase constant for a dielectric medium is provided. The method includes deploying a calibration object with a known free-space spectral response within a dielectric medium of interest, determining the spectral response of the calibration o... | 10/25/2011 |
| 8044839 | Combined radar and communications link In a CW radar system for detecting motion behind a wall involving modulation of the radar transmission, means are provided to interrupt the CW wave when motion is detected and to use the same radar transmitter to transmit a serial digital message to a remote monitor... | 10/25/2011 |
| 8040272 | Leading and lagging aperture for linear ground penetrating radar array A radar array linearly traverses an area of ground. Additional radar elements fore and aft of the array detect changes in elevation and orientation of the array. These elements act as a preview for the height changes due to ground variation. Any variation in height ... | 10/18/2011 |
| 8040273 | Radar for imaging of buildings According to one embodiment, a radar includes multiple antenna elements coupled to an image processing application. The antenna elements have a differing vertical spatial separation relative to one another and are configured to transmit a radio-frequency signal towa... | 10/18/2011 |
| 7999723 | Device and method for detecting non-linear electronic components or circuits especially of a booby trap or the like The invention relates to a device and a method wherein tunable transmitters and detectors (receivers) are integrated into a non-linear detection system and a narrow-band signal having a variable frequency is used. The scanable frequency range should be between 10-10... | 08/16/2011 |
| 7999722 | Through-wall imaging device A through-wall imaging device having antenna elements for transmitting and receiving signals adapted to pass through a wall for imaging objects therebehind, having a base with a carrier portion and a plurality of spaced-apart extensions connected thereto. At least a... | 08/16/2011 |
| 7994963 | High-sensitivity subsurface sensing system A target is sensed by an antenna array having a transmitter antenna and a receiver antenna, both of which are caused to be electromagnetically coupled to the target. The antenna array is rotated, and as the array rotates, a change in at least one of the coupling bet... | 08/09/2011 |
| 7986260 | Circularly polarized antennas for active holographic imaging through barriers Circularly-polarized antennas and their methods of use for active holographic imaging through barriers. The antennas are dielectrically loaded to optimally match the dielectric constant of the barrier through which images are to be produced. The dielectric loading h... | 07/26/2011 |
| 7982656 | Imaging apparatus and method A millimeter wave imaging apparatus and method capable of identifying the presence of relatively thin dielectric materials is disclosed. The method involves taking a plurality of millimeter wave images of a scene at different frequencies and analyzing the images at ... | 07/19/2011 |
| 7982657 | Ultra-wideband radar waveform calibration for measurements of a heterogeneous material Embodiments of the disclosed technology comprise a ground penetrating radio device and methods of use for obtaining greater resolution. This is achieved by measuring the composition/reflection off a homogeneous material (e.g., metal plate), determining coefficients ... | 07/19/2011 |
| 7978120 | Imaging system and method A radar imaging system for capturing an image of an object within an area of interest through at least one visual impairment. The radar imaging system comprises at least one radar array. The radar array includes a plurality of transmitter elements and a plurality of... | 07/12/2011 |
| 7973697 | Surveillance systems and methods with subject-related screening A surveillance system is disclosed. In some embodiments, the surveillance system may include at least one controller configured to receive information data from at least one upstream information source and to control operation of at least one controllable downstream... | 07/05/2011 |
| 7956794 | Short-range radar having a multiple sensor system for determining the location of objects enclosed in a medium A radar device is described, in particular a hand-held short-range radar for determining the location of objects enclosed in a medium, including at least one radar sensor, which generates a first, high-frequency detection signal for penetrating a medium to be tested... | 06/07/2011 |
| 7948428 | Millimeter wave imaging system with frequency scanning antenna A millimeter wave imaging system. The system includes one or more millimeter wave frequency scanning antenna for collecting frequency dependent beams of millimeter wave radiation from a narrow one-dimensional field of view and millimeter wave amplifier components fo... | 05/24/2011 |
| 7928892 | Identification and mapping of underground facilities A system or method of creating a map of voids in the ground based on a scattered electromagnetic signal includes traversing a receiver/probe in a near field above a target area; generating a signal from a signal transmitter, the signal having a predetermined wavelen... | 04/19/2011 |
| 7913198 | Method for designing array antennas A method for designing low signature array antennas using a calculation method. The method proposes a way of improving antenna and signature performance of array antennas. According to the method electromagnetic antenna and signature characteristics are specified, a... | 03/22/2011 |
| 7907081 | Millimeter wave imaging system An imaging system operative in a frequency range starting from X band and including the terahertz region has a receiving antenna having a spheroidal reflector. One or more arrays of detectors disposed at the focus adjacent to the reflector of the receiving antenna p... | 03/15/2011 |
| 7903020 | System and methods for remote sensing using double-sideband signals A sensing system is provided that includes a transceiver. The transceiver includes a transmitter chain that transmits a double-sideband signal having first and second frequency components, and a receiving chain that receives the double-sideband signal after it is re... | 03/08/2011 |
| 7898456 | Apparatus and method for detecting and locating hidden objects An apparatus and method for detecting and locating hidden objects employs a symmetrical array of five directional antennas, including a central transmit antenna and a pair of receive antennas at each side of the transmit antenna, respectively. All of the antennas ar... | 03/01/2011 |
| 7898455 | Handheld instrument capable of measuring heartbeat and breathing motion at a distance The apparatus of the present invention consists of a MicroPower Radar (MPR), a data acquisition (DAQ) element and a PDA. The radar sends a short, low-amplitude signal of radio-frequency (RF) energy toward the target scene. This signal reflects from the target and is... | 03/01/2011 |
| 7893862 | Method and apparatus for using collimated and linearly polarized millimeter wave beams at Brewster's angle of incidence in ground penetrating radar to detect objects located in the ground A detection system comprises a transmitter unit, a receiver, and a processor. The transmitter unit is capable of transmitting a first collimated beam having a first frequency and a second collimated beam having a second frequency into a ground, wherein the first col... | 02/22/2011 |
| 7889113 | Mmw contraband screening system An inspection system that can detect contraband items concealed on, in or beneath an individual's clothing. The system employs millimeter wave radiation to detect contraband items. The system is described in connection with a check point security system that include... | 02/15/2011 |
| 7855673 | Holographic imaging of natural-fiber-containing materials The present invention includes methods and apparatuses for imaging material properties in natural-fiber-containing materials. In particular, the images can provide quantified measures of localized moisture content. Embodiments of the invention utilize an array of an... | 12/21/2010 |
| 7852256 | Through the-wall motion detector with improved antenna A flat panel antenna used at a wall in a through-the-wall CW radar application is spaced from the wall by a half wavelength to eliminate the effects of energy reflected by the wall back to the antenna. In one embodiment, a ½-wavelength dielectric absorbing m... | 12/14/2010 |
| 7834801 | Sensor fusion for model-based detection in pipe and cable locator systems Line locator systems that fuse traditional sensors used in a combined pipe and cable locator (electromagnetic coils, magnetometers, and ground penetrating radar antennas) with low cost inertial sensors (accelerometers, gyroscopes) in a model-based approach are prese... | 11/16/2010 |
| 7834802 | Detection of a concealed object Disclosed are systems, methods, devices, and apparatus to determine if a clothed individual is carrying a suspicious, concealed object. This determination includes establishing data corresponding to an image of the individual through interrogation with electromagnet... | 11/16/2010 |
| 7830299 | Radar system for manmade device detection and discrimination from clutter A radar system for detecting the presence of threat providing electronic manmade devices placed in a given area of operation comprising: a radar transmitter for transmitting a radar signal designated as a probe signal to the given area of operation to cause said thr... | 11/09/2010 |
| 7804442 | Millimeter wave (MMW) screening portal systems, devices and methods A millimeter-wave (MMW) based screening system is provided that may operate with an active sensor, a passive sensor, or in a dual mode using both the active and passive sensors. One or more such sensors are mounted so as to rotate along an axis that passes through a... | 09/28/2010 |
| 7804441 | Detection of concealed object by standing waves A process is provided to detect an object within a defined region using standing longitudinal cavity mode waves. The process includes disposing first and second electromagnetic reflectors within the region at opposite ends of the axis; transmitting an electromagneti... | 09/28/2010 |
