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| Number | Title | Issue Date |
| 8129684 | Detection of hidden objects by terahertz heterodyne laser imaging A THz-frequency heterodyne imaging method is used to remotely detect objects concealed in or under a person's clothing. One THz-frequency beam is scanned over a person being examined. A portion of the beam penetrates the persons clothing and is reflected by an objec... | 03/06/2012 |
| 8026487 | Superconducting source for tunable coherent terahertz radiation A system includes a solid state source of THz radiation and a detector. The source of THz radiation may be based on a superconducting material, such as materials containing one or more Josephson junctions (e.g. BSCCO). The source may include a crystal of superconduc... | 09/27/2011 |
| 7847255 | Multi-mode rain sensor The present invention relates to a rain sensor that adaptively functions in a variety of different modes when deployed on vehicle windows of different thicknesses and compositions. The arrangement of multiple lens segments and reflecting surfaces in a nonsequential ... | 12/07/2010 |
| 7800069 | Method for performing IR spectroscopy measurements to determine coating weight/amount for metal conversion coatings A method of determining a coating weight and/or amount of a conversion coating on a metallic substrate including making near-IR spectra of a series of coating weight standards on an appropriate substrate material to match sample material in question, pre-processing ... | 09/21/2010 |
| 7767970 | Method for performing IR spectroscopy measurements to determine film coating thickness on a substrate A method of determining a film coating thickness on a substrate including making near-IR spectra of a series of coating thickness or coating weight standards on an appropriate substrate material to match sample material in question, pre-processing the data to prepar... | 08/03/2010 |
| 7745792 | Terahertz detectors for use in terahertz inspection or imaging systems A technique is provided for examining a subject. The technique includes illuminating at least a part of the subject with THz radiation and detecting THz radiation reflected and/or transmitted from the illuminated part and incident upon a detector array by measuring ... | 06/29/2010 |
| 7718969 | Methods and systems for generating amplified terahertz radiation for analyzing remotely-located objects A method for generating amplified terahertz radiation includes inducing a first volume of a gas to produce a seed plasma and emit pulsed seed terahertz radiation by focusing an optical seed beam in the first volume. The seed terahertz radiation is then amplified by ... | 05/18/2010 |
| 7692151 | Device for analyzing an integrated circuit A device (10) for analyzing a circuit (14) includes at least one element (22) for observing light emitted by at least one localized observation zone of the circuit resulting from the electric current flowing in the zone; elements (26) for exciting the circuit. The c... | 04/06/2010 |
| 7605371 | High-resolution high-speed terahertz spectrometer The mode-locking frequencies of two femtosecond laser light sources are controlled so that they are stabilized at high degree and the difference between the mode-locking frequencies is constant. The output of the laser light sources are used as a pumping light for g... | 10/20/2009 |
| 7504632 | Apparatus for checking banknotes An apparatus for checking bank notes which scans the bank notes to be checked by means of a semiconductor array, including two linear semiconductor arrays formed of at least three layers which are sensitive to light of different wave-lengths, a first linear semicond... | 03/17/2009 |
| 7498578 | Method and system for calibrating a reflection infrared densitometer in a digital image reproduction machine An enhanced toner area coverage (ETAC) sensor may be calibrated to adjust for changes in LED intensity by determining a functional relationship between specular developed mass per unit area (DMA) values and diffuse readings obtained from the sensor. Specular and dif... | 03/03/2009 |
| 7459687 | Non-linear terahertz spectroscopy for defect density identification in high k dielectric films Methods to infer the density of defects in high κ dielectric films in a non-contact, non-invasive and non-destructive manner. THz radiation is employed to measure the change in electrical conductivity of the films before and after illumination with visible light, w... | 12/02/2008 |
| 7449695 | Terahertz imaging system for examining articles A system to detect an article includes one or more terahertz modules. Each module either generates or receives, or both generates and receives, terahertz radiation. Some of the terahertz radiation is reflected from the article and the remainder of the terahertz radi... | 11/11/2008 |
| 7439512 | Method and apparatus for detecting unsafe conditions A device can be made operable to distinguish between materials impinging on a predefined area based at least in part on differentials within sets of data indicative of measurable characteristics of the materials impinging on the defined area. Such a device can trigg... | 10/21/2008 |
| 7435962 | Imaging device and method for producing an infrared filtered digital image An imaging device and method for producing an infrared (IR) filtered digital image of a scene of interest uses IR image signals derived from light transmitted through infrared pass filters of a color filter array to remove IR light components of color image signals ... | 10/14/2008 |
| 7429735 | High performance CCD-based thermoreflectance imaging using stochastic resonance The invention is directed to systems and methods of digital signal processing and in particular to systems and methods for measurements of thermoreflectance signals, even when they are smaller than the code width of a digital detector used for detection. For example... | 09/30/2008 |
| 7415139 | Living-tissue pattern detecting method, living-tissue pattern detecting device, biometric authentication method, and biometric authentication device The present invention enables permanent biometric authentication without the risk of forgery or the like. The present invention enables living-tissue discrimination as well as biometric authentication. The roughness distribution pattern of deep-layer tissue o... | 08/19/2008 |
| 7414244 | Mixing ration detecting apparatus, method of controlling mixing ration detecting apparatus, and fuel cell system incorporating mixing ratio detecting apparatus A mixture ratio detecting apparatus comprises: a light source which emits light including light of an infrared region; a first light detecting unit which detects the light of the infrared region from the light source; a second light detecting unit which detects ligh... | 08/19/2008 |
| 7381955 | Method and apparatus for inspecting target by tera-hertz wave spectrometry A method includes a spectroscopic measurement step of pre-measuring a spectrum [S] of tera-hertz wave absorbencies of a target component for a plurality of frequencies ranging about from 1 THz to 3 THz, and an object spectroscopic step of irradiating an object with ... | 06/03/2008 |
| 7375335 | Effect-particle orientation and apparatus therefor A method and apparatus for determining the effect-particle orientation in a film or coating are disclosed. The method comprises using opposing directional reflectance measurements, preferably in continuous processes and allows for an on-line evaluation system to pro... | 05/20/2008 |
| 7372034 | Agricultural measurement device with movable detector head A measurement device for detecting agricultural crops located within a conveyor channel. The measurement device includes a light-transmitting panel positioned adjacent to the conveyor channel and is configured to be movable between an operational position and a clea... | 05/13/2008 |
| 7365329 | Method for determining location of infrared-cut filter on substrate A method for determining a location of IR-cut filter film on a substrate, the filter film and the substrate cooperatively functioning as an IR-cut filter, includes the steps of: providing an infrared laser device, an IR-cut filter and an infrared laser sensor; emitt... | 04/29/2008 |
| 7365331 | Method of detecting a printable surface A method of processing postal articles in which a physical magnitude is measured in order to detect (2) whether the outside surface of a postal article is made of a plastics material, and in which a digital image of said outside surface of the postal article ... | 04/29/2008 |
| 7355140 | Method of and apparatus for multi-stage sorting of glass cullets A method and system for sorting different colored objects, preferably glass cullets, into separate groups of same colored objects comprising a plurality of sorting devices for receiving an input feed of different colored objects and sorting the different colored obj... | 04/08/2008 |
| 7351929 | Method of and apparatus for high speed, high quality, contaminant removal and color sorting of glass cullet A system for sorting a mixed stream of different colored cullet into separate groups of same colored cullet comprises a light emitting source for transmitting light, such as white light, through a cullet, and a camera having a plurality of pixels for receiving light... | 04/01/2008 |
| 7349609 | Terahertz radiation generation and methods therefor Terahertz radiation generation systems and methods are implemented using a variety of methods and devices. According to an example embodiment of the present invention, method for generating terahertz radiation is implemented where the wavelength of an optical pulse ... | 03/25/2008 |
| 7342230 | Terahertz imaging system and associated method A terahertz imaging system uses a terahertz light source to illuminate a target object with a series of short pulses of terahertz light. The pulses have a low average output power but a high peak output power, thereby enabling imaging of the suspicious object or per... | 03/11/2008 |
| 7339171 | Method and apparatus for detecting presence of an ophthalmic lens in a package The invention relates to a method and apparatus for detecting the presence of an ophthalmic lens, particularly a contact lens, in a package. The method for detecting the presence of an ophthalmic lens, particularly a contact lens, in a package, is characterised in t... | 03/04/2008 |
| 7336859 | Sensor using ultra thin waveguides and optical fibers Methods and apparatus are provided for detecting one or more contaminant particles in an environment with an optical sensor. The sensor includes at least one optical waveguide in a resonant arrangement and a light source positioned in an environment in which the pre... | 02/26/2008 |
| 7336358 | Method and apparatus for determining particle size and composition of mixtures Method and apparatus for evaluating one or more materials in accordance with size of particles. The method includes evaluating a spectrum of light reflected from a first group of particles; evaluating a spectrum of light reflected from a second group of particle; co... | 02/26/2008 |
| 7333189 | Spectroscopic diagnostic methods and system The present invention provides systems and methods for the determination of the physical characteristics of a structured superficial layer of material using light scattering spectroscopy. The light scattering spectroscopy system comprises optical probes that can be ... | 02/19/2008 |
| 7325935 | Image sensing system for a vehicle An image sensing system for a vehicle includes an imaging sensor comprising a two-dimensional array of light sensing photosensor elements. The system includes a logic and control circuit comprising an image processor for processing image data derived from the imagin... | 02/05/2008 |
| 7325934 | Image sensing system for a vehicle An image sensing system for a vehicle includes an imaging sensor having a two-dimensional array of light sensing photosensor elements, and a logic and control circuit having an image processor for processing image data derived from the imaging sensor. The logic and ... | 02/05/2008 |
| 7321425 | Sensor and methods for measuring select components in sheetmaking systems A sensor for measuring at least selected component in a composition can include: (a) a broadband light source, (b) an acousto-optic tunable filter (AOTF), (c) means for generating a beam of light from the light source and directing the beam of light at the AOTF wher... | 01/22/2008 |
| 7311406 | Image sensing system for a vehicle An image sensing system for a vehicle includes an imaging sensor comprising a two-dimensional array of light sensing photosensor elements, preferably formed on a semiconductor substrate, and a logic and control circuit, preferably with at least a portion of the logi... | 12/25/2007 |
| 7304306 | Direct conversion system for security standoff detection A security detection system includes a radiation source configured to generate and direct terahertz radiation onto an object. Further, the system also includes a detector module configured to detect and process radiation from the object, the detector module comprisi... | 12/04/2007 |
| 7304300 | Infrared tag and track technique A method of covertly tagging an object for later tracking includes providing a material capable of at least one of being applied to the object and being included in the object, which material includes deuterium; and performing at least one of applying the material t... | 12/04/2007 |
| 7301466 | Turn signal lamp, periphery monitoring device, body construction and imaging device for vehicle A side turn signal light that flashes during operation is disposed on a vehicle body side surface of a vehicle. Further, a camera that images a vehicle side zone that includes the side turn signal light in a section thereof, and a near-infrared LED for night-time il... | 11/27/2007 |
| 7292153 | System and method for determining a vehicle driver's blood/alcohol level A system includes a laser beam generating device that transmits a wireless first signal, having a first monochromatic radiation level, toward the driver. The first signal bounces off the driver and returns a second signal towards the acetaldehyde level detecting mec... | 11/06/2007 |
| 7288767 | Method and a spectrometer for quantitative determination of a constituent in a sample The present invention relates to a method of determining a constituent of a sample and more specifically, to a method of correcting an absorbance value for a spectrometer. The method is especially applicable in connection with spectrometric analysis instruments for ... | 10/30/2007 |
