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Class 342/22 - TRANSMISSION THROUGH MEDIA OTHER THAN AIR OR FREE SPACE


Subclass of Class 342 - Communications: directive radio wave systems and devices (e.g., radar, radio navigation)
Definition: Subject matter wherein a radar signal is sent through a
No. of patents: 525
Last issue date: 03/16/2010


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NumberTitleIssue Date
7679545Suppressing motion interference in a radar detection system
One preferred embodiment of the present invention provides a system and method for suppressing motion interference in a radar detection system. Briefly described, in architecture, one embodiment of the system, among others, can be implemented as follows. The system ...
03/16/2010
7679546Apparatus and method of determining location of an object
An apparatus and method of determining location of an object hidden from view. The apparatus includes an imaging tool for detecting hidden objects. The imaging tool includes a housing including a first end and a second end, a display supported by the first end of th...
03/16/2010
7675454System, method, and computer program product providing three-dimensional visualization of ground penetrating radar data
A system for analyzing and displaying radar information comprises: a transmit and receive unit operable to transmit radar signals to a survey volume and to receive radar returned radar signals, a processing unit operable to: receive radar data from the returned rada...
03/09/2010
7671784Computerized tomography using radar
Techniques for detecting contraband are described, as are techniques for generating an image of living tissue. A location of interest relative to a target space is received, and a radar signal is transmitted in the direction of the location of interest. Portions of ...
03/02/2010
7659847Radar mining guidance control system
A coal-mining machine uses a ground-penetrating radar based on a software-definable transmitter for launching pairs of widely separated and coherent continuous waves. Each pair is separated by a constant or variable different amount double-sideband suppressed carrie...
02/09/2010
7656341Noise augmented radar system
A radar system comprises a transmitter that transmits a predetermined wideband signal, a digital receiver that records a returned signal using a one-bit ADC, a random noise source that is added to the transmitted or returned signal, a processing means where the rece...
02/02/2010
7656342Double-sideband suppressed-carrier radar to null near-field reflections from a first interface between media layers
A ground-penetrating radar comprises a software-definable transmitter for launching pairs of widely separated and coherent continuous waves. Each pair is separated by a constant or variable different amount double-sideband suppressed carrier modulation such as 10 MH...
02/02/2010
7633426Combined radar and communications link
In a CW radar system for detecting motion behind a wall (12) involving modulation of the radar transmission, means (34) are provided to interrupt the CW wave when motion is detected and to use the same radar transmitter (30) to transmit a serial...
12/15/2009
7612704Positioning correction system and method for single and multi-channel ground penetrating radar
A mobile geophysical instrument produces geophysical data sets each associated with a position computed by use of a position sensor. A variable time delay results between a time when data for each geophysical data set is collected and a time when a position associat...
11/03/2009
7605743Method and device for a material-penetrative localization of a measurement signal
The invention relates to a method for the material-penetrative localization of a measurement signal, in particular a material-penetrative positioning method for use on walls, ceilings, and floors. According to the invention, a high-frequency transmitter (2...
10/20/2009
7598898Method for using logging device with down-hole transceiver for operation in extreme temperatures
A logging radar system and method for measuring propped fractures and down-hole formation conditions in a subterranean formation including: a radar source; an optical source; an optical modulator for modulating an optical signal from the optical source according to ...
10/06/2009
7586433Dual port memory trigger system for a ground penetrating radar
Systems and methods for generating trigger signals in a ground penetrating radar. In one embodiment, sequence data is generated based on a desired triggering sequence for an array of antennas. The sequence may be generated based on position data from position device...
09/08/2009
7561096Subsurface imaging radar
The present invention can be summarized by use of a diffraction limited SAR giving large integration angle and a short depth of field which gives that energy from underground targets is focused independently at different depths to enable 3d imaging. The radar...
07/14/2009
7548181Earth-penetrating radar with inherent near-field rejection
A ground-penetrating radar comprises a transmitter for launching pairs of widely separated and coherent continuous waves. Each pair is separated by a different amount, such as 10 MHz, 20 MHz, and 30 MHz. These are equivalent to modulation that have a phase range tha...
06/16/2009
7528763Millimeter-wave interrogation relating features
Methods for interrogating a subject with millimeter-wave electromagnetic radiation, and generating data representative of a selected feature of a subject may include serial comparative interrogating for processing. Serial processing may include first interrogating a...
05/05/2009
7528764Through the wall ranging with triangulation using multiple spaced apart radars
A plurality of multi-tone CW radars are used to generate a swath of ranges to a moving object or individual behind a wall or building structure in which the overlap of the range swaths from spaced-apart radars determines the location of the moving object or individu...
05/05/2009
7528762Signal processing methods for ground penetrating radar from elevated platforms
Methods and systems for using ground penetrating radar (GPR) to obtain subsurface images. The depression angle, frequency, and polarization can all be adjusted for the soil conditions at hand. In particular, the depression angle is set at the “pseudo-Brewster angl...
05/05/2009
7518542Handheld radar frequency scanner for concealed object detection
A handheld radar frequency scanner system for detecting objects concealed on a person, the system includes a radar transmitter coupled to a transmit antenna that is configured and positioned to direct a radar signal at a person, a radar receiver coupled to a receive...
04/14/2009
7511654Systems and methods for mine detection
Systems, methods, and devices for detecting land mines and unexploded ordnance are disclosed. A first embodiment may be construed as a method that includes: inserting an antenna into the ground; transmitting an electromagnetic signal into the ground via the antenna;...
03/31/2009
7504984Large scale imaging with spatially-coded waveforms
A system for locating earth cavities, or items in a building, or structural characteristics having a plurality of transmitters that generate at least a portion of a waveform. Each transmitter divides the waveform into sub-chirp intervals and transmits a known sub-ch...
03/17/2009
7492303Methods and apparatus for detecting threats using radar
Methods and apparatus for early detection and identification of a threat such as individuals carrying hidden explosive materials, land mines on roads, etc. are disclosed. One method comprises illuminating a target with radiation at a first polarization, collecting f...
02/17/2009
7482968Detector for embedded elongate objects
A detector (1) for detecting embedded elongate objects (5) has an evaluating unit (6), a computing device (7), an output device (8), and a handheld measuring head (9) which can be moved over a surface (F) and which has a pat...
01/27/2009
7482969Material movement sensing techniques
One embodiment of the present invention provides several electromagnetic radiation reflectors within a volume that contains solid portions subject to movement relative to one another. At least a portion of the reflectors are positioned beneath one or more of the sol...
01/27/2009
7479918Vehicle-mounted ultra-wideband radar systems and methods
Vehicle-mounted UWB systems and/or methods for detecting mines and other explosive devices are provided. In certain exemplary embodiments, a system for detecting non-buried mines and/or improvised explosive devices is provided. Distance measuring equipment may be co...
01/20/2009
7460052Multiple frequency through-the-wall motion detection and ranging using a difference-based estimation technique
A multi-tone CW radar (14) is used to project signals from an antenna (22) and to receive returns with the same antenna. The phase differences between the outgoing signals and the returns are analyzed to determine the existence of motion and the range ...
12/02/2008
7460053Method and apparatus for through-the-wall motion detection using CW radar
A CW radar (10) is used to detect motion of objects (22) behind a wall (20) by projecting a radar beam through the wall and by measuring the returns from the objects behind the wall, with a change in the phase difference between the transmitted ...
12/02/2008
7450052Object detection method and apparatus
Method and apparatus for detecting objects. In one embodiment, a person entering a secured zone is illuminated with low-power polarized radio waves. Differently polarized waves which are reflected back from the person are collected. Concealed weapons are detected by...
11/11/2008
7450053Logging device with down-hole transceiver for operation in extreme temperatures
A logging radar system and method for measuring propped fractures and down-hole formation conditions in a subterranean formation including: a radar source; an optical source; an optical modulator for modulating an optical signal from the optical source according to ...
11/11/2008
7432846Millimeter wave imaging system
A millimeter wave imaging system. The system includes at least one millimeter wave frequency scanning antenna for collecting frequency dependent beams of millimeter wave radiation from a narrow one-dimensional field of view; a millimeter wave amplifier for amplifyin...
10/07/2008
7423587Method for frequency-driven generation of a multiresolution decomposition of the input to wave-based sensing arrays
A method for generating a multiresolution decomposition of an array signal by a bank of spatial bandpass filters is disclosed. The signal processing operation is implemented through the use of the directivities of the individual array elements and does not degrade t...
09/09/2008
7417581System and method for intrusion detection using a time domain radar array
A system and method for highly selective intrusion detection using a sparse array of time modulated ultra wideband (TM-UWB) radars. Two or more TM-UWB radars are arranged in a sparse array around the perimeter of a building. Each TM-UWB radar transmits ultra wideban...
08/26/2008
7415244Multi-channel millimeter wave imaging system
A broad-band millimeter wave imaging system with improved thermal resolution as compared to prior art devices. The system is useful for producing images of metal and non-metal objects such as guns, knives and explosives hidden under clothing. A cylindrical antenna f...
08/19/2008
7405692Detecting concealed objects at a checkpoint
Disclosed are systems, methods, devices, and apparatus to interrogate a clothed individual with electromagnetic radiation to determine if a concealed object is being carried. This determination includes establishing data corresponding to an image of the individual w...
07/29/2008
7400976Utility mapping and data distribution system and method
A system and method of mapping underground utilities and other subsurface objects involves one or more of acquiring utility location data using a number of different detectors and sensors, processing the multiple detector/sensor output data to produce mapping data, ...
07/15/2008
7397417Electromagnetic impulse survey apparatus and method utilizing a magnetic component electromagnetic antenna
The invention relates to an apparatus and method for performing passive geophysical prospecting. More particularly, the present invention relates to an improved apparatus and method for locating and selected subsurface Earth material deposits or geologic formations ...
07/08/2008
7391362Linear FM radar
A FM-CW radar system comprises a frequency modulated continuous wave digital generator that produces both in-phase (I) and quadrature-phase (Q) outputs to orthogonally oriented transmitter antennas. A linearly polarized beam is output from a switched antenna array t...
06/24/2008
7386150Active subject imaging with body identification
A method of surveilling a subject including a person's body may include or an imaging system may provide interrogating the subject with electromagnetic radiation, and generating, from the interrogating, image data representative of at least a first image of at least...
06/10/2008
7385549Millimeter wave portal imaging system
A millimeter wave portal imaging system for the detection of concealed weapons, explosives and other contraband items. A preferred millimeter wave imaging system includes a number (such as 64) of millimeter wave detection units each including a frequency scanning an...
06/10/2008
7382312Syntactic target classifier
Disclosed is a Syntactic Landmine Detector. The syntactic landmine detector processes a received signal from a ground penetrating RADAR which contains at least one spatial sequence, the spatial sequence containing relative spatial information locating impedance disc...
06/03/2008
7378855Bi-directional three-Dimensional microwave scanning and volumetric mapping of a whole roll or pallet of paper
Bi-directional (longitudinal and angular) three-dimensional volumetric microwave scanning of a whole roll or pallet of paper (FIGS. 3, 4), including three-dimensional volumetric mapping of internal properties and characteristics (moisture content, density, ma...
05/27/2008
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