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Class 250/340 - Methods


Subclass of Class 250 - Radiant energy
Definition: Subject matter which includes methods of detecting infrared
No. of patents: 262
Last issue date: 01/17/2012


1              
NumberTitleIssue Date
8097853Infrared photocurrent front-end ADC for rain-sensing system with ambient light compensation
Systems and methods for a front-end circuit receiving a current from a photodiode receiving a signal light and ambient light have been disclosed. In a preferred embodiment the front-end circuit accommodates a photo diode current, generated by a signal light from an ...
01/17/2012
8022366Non-invasive qualitative measurement of chemistry of blood and bodily fluids
Mid-IR spectrometer with no moving parts, which is small and compact, low power consuming, and can monitor blood sugar (glucose) and other blood and bodily fluid analytes on a continuing basis. It has many applications in the health, forensic, environmental and othe...
09/20/2011
8022367Multipoint sensing system
A self-powered energy harvesting unit/controller receives motion data from one or more self-powered sensors via low power wire. The energy harvesting unit sends signals wirelessly to a system to perform certain functions as a result of received motion signals or the...
09/20/2011
8017911Use of spinel ferrites as sensitive material for bolometric infrared detector devices
The present invention relates to the use as a sensitive material in a thin layer for bolometric detection of infrared radiation, of a material having a spinel ferrite structure of chemical composition, ignoring doping agents if any are present, satisfying empirical ...
09/13/2011
8017912System and method for spectral-based passive threat warning
A method of classifying an electromagnetic-energy emitting source event as one of a first, second, and third class event includes registering an irradiance spectrum from the source event. The intensity of the energy emitted from the source event is measured within e...
09/13/2011
7928392Systems and methods for blind echo cancellation
System and method for blind echo cancellation in a received terahertz signal in a pulsed terahertz system for imaging or spectroscopy. Blind signal processing methods estimate the impulse response of the reflection mechanism and do not require a reference measuremen...
04/19/2011
7851760Control and optimization of process for making ethylene oxide
The invention pertains to a method for controlling the Limiting Oxygen Value (LOV) of a reactor for producing ethylene oxide using a tunable diode laser. The sample to be tested is extracted. A method for controlling oxygen analyzer safety shutdown for a reactor for...
12/14/2010
7767969Method and apparatus for measuring spectroscopic absorbance
An object of the present invention is to provide a spectroscopic method and an apparatus which can measure a trace element accurately with high sensitivity. In order to achieve this object, for example, in Fourier transformation infrared spectroscopy (FT-IR), a refe...
08/03/2010
7671338Apparatus and method for analyzing relative outward flow characterizations of fabricated features
An apparatus and method for characterizing gas flow through features fabricated in a hollow part. A pressure regulated cooled gas is applied to an interior of the part to the features fabricated in the part. At the same time, a pressure regulated heated gas is appli...
03/02/2010
7564034Terahertz sensing apparatus using a transmission line
A sensing apparatus is provided which comprises a chip (20) in which a transmission line (2) for propagating an electromagnetic wave is formed on a substrate (1), an electromagnetic wave generator (7) for generating an electromagnetic wav...
07/21/2009
7511275Semiconductor device, and control method and device for driving unit component of semiconductor device
A solid-state imaging device, such as a CMOS sensor, includes a unit pixel having a charge generation unit for generating signal charge, a floating diffusion for accumulating the signal charge generated by the charge generation unit, a transfer gate transistor for t...
03/31/2009
7388204Apparatus and method for analyzing relative outward flow characterizations of fabricated features
An apparatus and method for characterizing gas flow through features fabricated in a hollow part. A pressurized gas is applied to an interior of the part, and this gas pressure flows outward through features fabricated in the part. At the same time, a stabilizing pr...
06/17/2008
7385199Microbolometer IR focal plane array (FPA) with in-situ mirco vacuum sensor and method of fabrication
A microbolometer IR FPA is provided with in-situ vacuum sensing capability by realizing that the IR sensor microbolometer pixel element itself may be used as a vacuum sensor. The application of an electrical signal to the resistive element heats the bolometer materi...
06/10/2008
7358854Method and device to identify a periodic light source
In a device for location positioning, and more particularly, in a system for identifying an environmental source emitting a base frequency and waveform signal, a sensor (101) records an environmental source (105) emitting a base frequency and waveform ...
04/15/2008
7355707Systems and methods for analyzing dew in a system of interest
A system and method and for analyzing dew in a system of interest are provided. A representative method comprises receiving infrared information corresponding to a degree of polarization of dew in a particular environment, and using the degree of polarization to det...
04/08/2008
7349107System and method for correction for angular spread in determining optical properties of materials
The present invention provides a method and system to correct for angular spread within an HDR used to determine IR optical constants. An algorithm simulates the transmission and polarized reflection actually observed. This is achieved by averaging power scattering ...
03/25/2008
7324001System and method for detecting and discriminating between water and ice formation on objects
A system for detecting and discriminating between water and ice formation on a number of objects, such as aircraft or roadways is described. The system includes an optical element or sensor adapted to receive at least first and second wavelengths of light from a mul...
01/29/2008
7302289Readable probe array for use
A disposable high density optically readable polydeoxynucleotide array with integral fluorescence excitation and fluorescence emission channels is described. The compact array size allows integration into several types of interventional devices such as catheters, gu...
11/27/2007
7294234Process and device for monitoring the condition of a belt
Process and apparatus for monitoring the condition of a rotating belt in a paper or cardboard machine. The process includes recording data related to a condition of the belt, and creating an at least two-dimensional image of the belt condition from the recorded cond...
11/13/2007
7238847Apparatus and method for determining and controlling the hydrogen-to-carbon ratio of a pyrolysis product liquid fraction
A process and apparatus for determining the hydrogen-to-carbon ratio of the liquid fraction of a pyrolysis product by determining the hydrogen-to-carbon ratio of the pyrolysis product gas fraction and subtracting the thus determined value from the determined hydroge...
07/03/2007
7215491Optical path switching device and method
An optical path switching method includes converging and irradiating, on a light absorption layer film provided in a thermal lens forming element including at least the film, each of a control light having a wavelength selected from a wavelength band which is absorb...
05/08/2007
7197381Navigational system and method utilizing sources of pulsed celestial radiation
A system and method for navigation utilizing sources of pulsed celestial radiation are provided. A spacecraft, satellite, or other vehicle (12) has a pulse sensor (22) mounted thereto for detecting signal pulses (14) generated by a plurality of ...
03/27/2007
7197198Biosensor substrate structure for reducing the effects of optical interference
A biosensor substrate structure is provided that eliminates the effects of optical interference of light reflected from a substrate/air interface with light reflected by the biosensor's active surface by incorporating a roughened or “non-specular” surface on the...
03/27/2007
7179553Method for detecting electrical defects in membrane electrode assemblies
A method and system for detecting imperfections in a membrane electrode assembly of an electrochemical fuel cell, and more particularly for detecting defects within a proton exchange membrane in a membrane electrode assembly which is optionally sandwiched between co...
02/20/2007
7175436Optical composite cure radiometer and method
A radiometer and method for providing an indication of the amount of time (exposure duration) needed to cause a light curable dental resin composite material to maximally polymerize in response to the application of light from any light-curing source during the prep...
02/13/2007
7176465Computer radiographic scanner utilizing a scan bar
The scanning device for radiographic media (28) is made of a rotatable vacuum drum (40) has an external surface (42) that, rotates about a longitudinal axis (7); the radiographic media is disposed on the external surface; a moveable scan ...
02/13/2007
7176462Semiconductor device, and control method and device for driving unit component of semiconductor device
A solid-state imaging device, such as a CMOS sensor, includes a unit pixel having a charge generation unit for generating signal charge, a floating diffusion for accumulating the signal charge generated by the charge generation unit, a transfer gate transistor for t...
02/13/2007
7173950Low-noise high-power SHG laser system
A second harmonic generation laser system comprising: a non-linear frequency converting medium; and an external cavity pump laser that produces optical energy at a single mode and at a single frequency and that is disposed to provide the optical energy to the non-li...
02/06/2007
7157741Silicon optoelectronic device and optical signal input and/or output apparatus using the same
A silicon optoelectronic device and an optical transceiver, wherein the silicon optoelectronic device includes an n- or p-type silicon-based substrate and a doped region formed in a first surface of the substrate and doped to an opposite type from that of the substr...
01/02/2007
7157724Detection lamp
A light source for testing sites using a fluorescent dye is described. The light source can include a low voltage lamp or a low heat generating lamp. An emission from the fluorescent dye can be detected through a filter lens, which can include a primary filter and a...
01/02/2007
7155356Quality and condition monitoring based on spectrum separating measurement
A method of controlling the quality and/or condition of a fibre web in a process for manufacturing and/or finishing the fibre web, which includes, monitoring the fibre web with at least one optical spectrum separating measurement device, determining a quality variab...
12/26/2006
7150559Hot 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
7129490Oject detection technology
A detection apparatus is discloses comprising an emitter for emitting a plurality of optical pulses; a detector for receiving the optical pulses from the emitter; and a controller connected to the emitter and the detector, the controller comparing a difference betwe...
10/31/2006
7126123Surface contamination detection method and apparatus
A method and an apparatus for inspecting parts for surface contamination including the steps of covering the part with a film of water, and then scanning the wetted part with a infrared camera to preserve the reflected image of the reflected infrared light thereby d...
10/24/2006
7126124Marking 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
7102616Remote control device with pointing capacity
A hand held remote control device that allows a user to select the position and movement of a cursor on a display screen or other selected functions by rotating or translating the input device in three-dimensional space. A signal is emitted from a beacon at a first ...
09/05/2006
7087902Fresnel lens tomographic imaging
Systems and methods for reconstructing a plurality of images of an object. An exemplary system includes a radiation source adapted to emit radiation at a plurality of frequencies; a lens with frequency-dependent focal length, such as a Fresnel lens, adapted to recei...
08/08/2006
7075083Method for examining the structure of through-holes of a component
Methods for examining through holes of a component according to prior art generally use hot gases for the thermographic detection of blockages. The inventive method for examining the structure of through holes of a component considerably simplifies said techniques, ...
07/11/2006
7070325Hot melt adhesive detection methods and systems
Hot melt adhesive sensing systems 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...
07/04/2006
7045764Passive detection system for detecting a body near a door
A detection system for detecting a body near a doorway includes two detectors having one or more activation lines that overlap each other. With certain mounting arrangements, the detectors cover areas within and on both sides of the doorway. The detectors are meant ...
05/16/2006
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