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| Number | Title | Issue Date |
| 8174429 | Mine detection An integrated mine detection system includes a ground penetrating metal detector and a ground penetrating radar detector. The integrated mine detection system includes an integrated search device housing a radio-wave transmitter of the radar detector and a coil of t... | 05/08/2012 |
| 8137796 | Reusable material for collecting samples for analysis A particle-harvesting material includes a flexible, reusable, and thermally conductive material including a rough surface having dimples of a size within a first range of sizes, a microstructure including interstices of a second range of sizes, the second range of s... | 03/20/2012 |
| 7671784 | Computerized 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 |
| 7666356 | Trace sampling A trace sampling detection system includes a gathering device configured to gather particles through a handle-bar, a gate and an air-stream gatherer. A collection tube is configured to deposit gathered particles from the gathering device onto a portion of a sample m... | 02/23/2010 |
| 7645069 | Energetic material detector A method of detecting energetic materials, such as explosives, includes energizing a sample area that contains particles of energetic materials. In the method, temperature characteristics from the sample area are monitored, and a temperature released from exothermic... | 01/12/2010 |
| 7532127 | Motion and position measuring for buried object detection A hand-held, wand-type buried object detector includes a motion and position sensor that provides data about the sensor head of the buried object detector. An inertial measuring device including three accelerometers and three gyroscopes is one example of a motion an... | 05/12/2009 |
| 7345618 | Moving-entity detection Sensing moving entities includes transmitting a stepped-frequency radar signal including multiple frequencies through a wall from a first side of the wall to a second side of the wall. Portions of the radar signal that are reflected by entities located beyond the se... | 03/18/2008 |
| 7310060 | Multi-mode landmine detector An multi-mode target detection system includes a ground penetrating metal detector and a ground penetrating radar detector permitting operation of the system in a variety of target detection modes. The system includes a control section having a selection device for ... | 12/18/2007 |
| 7204125 | Pressure activated sampling system Screening of items for the presence of contaminants, such as explosives residue, is accomplished by subjecting an item loaded into a pressure chamber to a pressure substantially in excess of atmospheric pressure conditions and rapidly decompressing the item to the a... | 04/17/2007 |
| 7183964 | Mine detection using radar vibrometer A frequency-stepped radar may be used to detect buried landmines by sequentially inducing vibrations of different frequencies in the landmine. A sensor detects signals associated with the vibrations, and a processor processes the signals to detect the landmine. ... | 02/27/2007 |
| 7109910 | Mine detection using radar vibrometer A frequency-stepped radar may be used to detect buried landmines by sequentially inducing vibrations of different frequencies in the landmine. A sensor detects signals associated with the vibrations, and a processor processes the signals to detect the landmine. ... | 09/19/2006 |
| 7064701 | Concealed object detection A concealed object detection system for detecting objects concealed on a person includes radar transponders that are each configured and positioned to direct a radar signal at a person and to detect a portion of the radar signal reflected by the person. A processor ... | 06/20/2006 |
