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| Number | Title | Issue Date |
| 7573032 | Passive infra-red detectors A passive infra-red detector including at least three sub-detectors, each sub-detector being operative to receive infra-red radiation from a corresponding one of at least three sub fields-of-view, each sub field-of-view being exclusively defined by an optical elemen... | 08/11/2009 |
| 7439510 | Compact emissivity and temperature measuring infrared detector A hand-held, fleet deployable infrared camera with integrated hardware and software providing real time processing of infrared images. The camera senses variable temperature images over a selected object of interest and senses variable emissivities over the object. ... | 10/21/2008 |
| 7432505 | Infrared-based method and apparatus for online detection of cracks in steam turbine components An online method, system, and computer-readable code for remotely monitoring radiant energy emitted from a turbine blade (106), which may be undergoing an incipient degradation, such as a crack, in a relatively low-temperature, and saturated steam environment... | 10/07/2008 |
| 7316505 | Method of defining the emission coefficient of a surface to be heated A method of defining the emission coefficient of a surface to be heated by measuring the temperature of a heating surface and the flow of heat from the heating surface to a surface to be heated to derive a pair of values representative thereof and of selecting a pre... | 01/08/2008 |
| 7242295 | Security data management system A sensor unit for use in a surveillance system is provided. The sensor unit interfaces with a sensor device to receive sensor data from the sensor device. The sensor unit is configured to generate an event record based upon received sensor data. The event record is ... | 07/10/2007 |
| 7230711 | Envelope functions for modulation spectroscopy A spectrometer and spectrometry method comprising modulating a light source with a carrier waveform multiplied by an envelope function, directing light from the light source through a sample region and to a photodetector, and demodulating current from the photodetec... | 06/12/2007 |
| 7150559 | Hot melt adhesive detection methods and systems A hot melt adhesive sensing system and methods including detecting (410) multiple areas of a target, for example a hot adhesive material, by sensing changes in temperature with a corresponding number of thermal sensors, summing (420) an output of the t... | 12/19/2006 |
| 7139411 | Pedestrian detection and tracking with night vision A system and method for detecting and tracking humans, such as pedestrians, in low visibility conditions or otherwise. A night vision camera periodically captures a an infrared image of a road from a single perspective. A pedestrian detection module determines a pos... | 11/21/2006 |
| 7126124 | Marking determining method and marking determining apparatus The present invention realizes accurate determination on marking without using an infrared sensor having high responsiveness and high precision. An infrared sensor is disposed such that a region of a predetermined range on the downstream side in the feed direction o... | 10/24/2006 |
| 7081817 | Motion detection apparatus employing millimeter wave detector A system and method for motion detection, useful, for example, in intrusion detection, access control, and energy management, including an incoherent detector, including at least one sensing element, operative to detect receipt of radiation having a wavelength betwe... | 07/25/2006 |
| 7044637 | Temperature measuring apparatus A temperature measurement apparatus allows for accurate temperature measurement in both the sun and the shade using two different thermal sensors. A black sensor has an infrared absorbent surface and a white sensor has an infrared reflecting surface. Using the measu... | 05/16/2006 |
| 6917040 | Method and apparatus for recognizing foreign material on bank notes A method and apparatus for recognizing foreign material (2), in particular adhesive objects, glue or joints, on or in bank notes (1), including detecting the thermal radiation (5) emanating from at least a partial area of the bank note (1... | 07/12/2005 |
| 6914246 | Method and apparatus for spatially resolving flame temperatures using ultraviolet light emission A method for spatially resolving flame temperatures in which a temperature-dependent wavelength region of a molecule radical spectrum and a normalization wavelength region of the molecule radical spectrum suitable for normalizing spectral data are identified. An alg... | 07/05/2005 |
| 6818881 | Optical filter and passive infrared detector assembly An optical element including a substrate which is generally transparent to infrared radiation in a wavelength range of 5-16 μm, a pigment disposed in the substrate in an amount that does not generally decrease transmission of the infrared radiation, the pigment bei... | 11/16/2004 |
| 6756591 | Method and device for photothermal imaging tiny particles immersed in a given medium A method and device for photothermal imaging tiny metal particles which are immersed in a given medium like a living cell deposited onto a transparent glass slide. The given medium and immersed tiny metal particles are illuminated through separate phase reference la... | 06/29/2004 |
| 6677590 | Flame sensor A flame sensor capable of being easily produced and accurately detecting a flame includes a broadband filter having a transmission band inclusive of a line spectrum of resonance radiation of a carbonic acid gas, a narrowband filter permitting the passage ... | 01/13/2004 |
| 6518574 | Fire detector with multiple sensors A process and system for flame detection includes a microprocessor-controlled detector with an array of sensors for sensing radiant energy from a fire or other heat source. A wide band infrared sensor is used as the primary detector, with near band and vi... | 02/11/2003 |
| 6448558 | Active infrared signature detection device The present invention is a device for detecting modulated or active infrared light comprises a photodiode mounted on the base aperture of a wave guide for focusing infrared light onto the photodiode. The wave guide is preferably pyramid shaped and has a r... | 09/10/2002 |
| 6384414 | Method and apparatus for detecting the presence of an object A method and apparatus for detecting and classifying an object, including a human intruder. The apparatus includes one or more passive thermal radiation sensors that generate a plurality of signals responsive to thermal radiation. A calculation circuit co... | 05/07/2002 |
| 6297504 | Method and apparatus for the imaging of gases A method for imaging a quantity of gas present in the atmosphere of a selected area. The method comprises the steps of directing background infra-red radiation from the selected area into an interferometer; imaging the infra-red radiation emerging from th... | 10/02/2001 |
| 6288396 | Satellite thermal infrared technique for short-term and impending prediction of strong earthquakes A satellite thermal infrared technique for short-term and impending prediction of strong earthquakes, by use of polar orbit satellites, geosynchronous satellite and meteorological satellites, combined with other satellites carrying scanners with infrared ... | 09/11/2001 |
| 6288395 | Passive infrared detection system and method with adaptive threshold and adaptive sampling A detection system and method are capable of reducing the occurrence of false alarms and detection failures by compensating for variations in the amplitude of a detection signal generated by a PIR sensor. An adaptive threshold can be used that varies acco... | 09/11/2001 |
| 6246056 | Earth sensor An apparatus for determining the attitude of an orbiting spacecraft includes an optical system for generating an image on a substrate of a body around which the spacecraft is orbiting, an infrared detector positioned on the substrate in the form of a non-... | 06/12/2001 |
| 6239433 | Sensors using detector arrays Sensors using detector arrays (1) are intended for identifying events within a scene (12). A sensor comprising an array of pyroelectric infrared detectors (1) is mounted directly onto an integrated readout circuit (2) so that each of its elements is in el... | 05/29/2001 |
| 6153881 | Fire detector and housing A process and system for flame detection includes a microprocessor-controlled detector with at least three sensors. A wide band infrared sensor is used as the primary detector, with near band and visible band sensors serving to detect false-alarm energy f... | 11/28/2000 |
| 6124103 | Arrangement and method of examining hydrophilic macromolecules in an aqueous solution An arrangement for the investigation of hydrophilic macromolecules (1) in an aqueous solution having a solid carrier surface (5) onto which a lipid film (24) is disposed, wherein the molecules (1) to be investigated are bound, by means of a molecular coup... | 09/26/2000 |
| 6100527 | Fast response radiation detector A thermally differentiable pattern such as hot melt adhesive is monitored in a production line system. An electrical output from a thermopile radiation sensor is applied to a detection circuit which processes the sensor electrical output to perform an inv... | 08/08/2000 |
| 6064064 | Fire detector A process and system for flame detection includes a microprocessor-controlled detector with at least three sensors. A wide band infrared sensor is used as the primary detector, with near band and visible band sensors serving to detect false-alarm energy f... | 05/16/2000 |
| 6057549 | Fire detector with multi-level response A process and system for flame detection includes a microprocessor-controlled detector with at least three sensors. A wide band infrared sensor is used as the primary detector, with near band and visible band sensors serving to detect false-alarm energy f... | 05/02/2000 |
| 5942753 | Infrared remote sensing device and system for checking vehicle brake condition An infrared remote sensing device and system for determining or allowing an inspector to determine whether a motor vehicle warrants an enhanced safety inspection to detect a defective or faulty brake system. The infrared remote sensing system includes a v... | 08/24/1999 |
| 5929777 | Radio activated personal infrared distress beacon A personal infrared beacon unit capable of being worn as an adornment of clothing, incorporated into a part of a person's attire, or embodied within a personal pager, a cellular phone or a 2-way data device. The beacon unit may be in communication with an... | 07/27/1999 |
| 5903005 | Aspherical elements for infrared imaging system In a thermal imaging unit (12) including optics (16,18) for detecting a target scene (14), a detector array (26) responsive to target scene energy and a scanner (23) for scanning target scene energy from the target (14) onto the detector array (26), an im... | 05/11/1999 |
| 5773826 | Flame detector and protective cover with wide spectrum characteristics The present invention relates to a flame detector and protective cover with wide spectrum characteristics. The novel flame detector has wide spectrum sensitivity, which facilitates increased sensitivity to any sign of a flame or fire. The protective cover... | 06/30/1998 |
| 5686889 | Infrared sniper detection enhancement Firing of small arms results in a muzzle flash that produces a distinctive ignature conducive to automated or machine-aided detection with an IR (infrared) imager. The muzzle flash is intense and abrupt in the 3 to 5 μm band. A sniper detection system ope... | 11/11/1997 |
| 5654700 | Detection system for use in an aircraft A detection system for use in an aircraft which is able to monitor atmospheric conditions ahead of the aircraft, generate an alarm signal if adverse atmospheric conditions exist ahead of the aircraft and generate information which indicates the position o... | 08/05/1997 |
| 5587784 | Multispectral-staring sensor A multispectral imaging sensor. The inventive sensor (10) includes a broadband detector (30) capable of sensing electromagnetic energy across a spectra of interest. A filter arrangement (20) is mounted within the sensor in alignment with the detector (30)... | 12/24/1996 |
| 5534694 | Infrared imaging system for enhancing the perception of a scene by a vehicle operator A thermal or infrared imaging system that is particularly useful to enhance a vehicle operator's perception of surrounding scene features under vision-impaired conditions, e.g., rain, fog, smoke, and the like. Scene radiation is passed to an imaging senso... | 07/09/1996 |
| 5528037 | Band analysis system A band analysis system for determining the optimal signal-to-noise ratio between the spectral emissions from an object of interest and the spectral emissions from background noise for a target detecting and tracking system. Known target and background spe... | 06/18/1996 |
| 5517201 | Game alert system A plurality of monitors are distributed throughout a surveillance area chosen in the wild habitat of animals by a sportsman. Each monitor transmits at least one infrared signal to the surveillance area. An animal intersected the beam reflects incident rad... | 05/14/1996 |
| 5497003 | Pyroelectric detector array with optical filter elements The apparatus is a pyroelectric detector array with an optical filter. A plurality of pyroelectric detector elements are arranged on a common substrate and an optical filter is placed immediately adjacent to the pyroelectric detector elements. The optical... | 03/05/1996 |
