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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7791056 | Gas sensor for use as a fire detector A gas sensor includes a light source for generating light at a wavelength | 09/07/2010 |
| 7772579 | Method and apparatus for simultaneously measuring a three dimensional position of a particle in a flow Particle detection systems without knowledge of a location and velocity of a particle passing through a volume of space, are less efficient than if knowledge of the particle location is known. An embodiment of a particle position detection system capable of determin... | 08/10/2010 |
| 7605389 | Particle detector with particle trapping device A particle detector includes an input port for receiving gas and particulate matter. A charging source generating positively and negatively charged species that charges at least some particulate matter in charging region, thereby generating a plurality of charged pa... | 10/20/2009 |
| 7440144 | Image input/output apparatus An image input/output apparatus having a scanner unit disposed at an upper stage of an apparatus body and a liquid jet recording unit installed at a lower stage of the apparatus body includes a window which light passes through between the scanner unit and the liqui... | 10/21/2008 |
| 7422693 | Monitoring and control system for blood processing The invention relates generally to methods of monitoring and controlling the processing of blood and blood samples, particularly the separation of blood and blood samples into its components. In one aspect, the invention relates to optical methods, devices and devic... | 09/09/2008 |
| 7414237 | Optoelectronic sensor device for a motor vehicle A sensor for detecting moisture on a pane includes a coupler having prisms arranged in coupling areas for coupling light from a transmitter into the pane at an input angle and prisms arranged in decoupling areas for decoupling light reflected from the pane to a rece... | 08/19/2008 |
| 7414255 | Drop counter The present invention relates to a Drop Counter for counting a succession of falling liquid drops. The Drop Counter includes a light emitting diode for providing a light beam directed to a falling liquid drop. A photo diode sensor is positioned in side-by-side relat... | 08/19/2008 |
| 7372063 | Optical detector for the presence of gas bubbles in a liquid The invention concerns a method for detecting gas bubbles in a liquid adapted to a device comprising a light source, a light detector and a data controlling and processing unit connected to a client system comprising the following steps: emitting light from the ligh... | 05/13/2008 |
| 7365481 | Field emission device with change in emission property A field emission device having cold cathode devices including an emitter and a lead electrode, and the field emission device is provided with the plural kinds of cold cathode device groups classified based on the emission property of the cold cathode device. This fi... | 04/29/2008 |
| 7365846 | Scattered light smoke detector The smoke detector contains an optical measuring chamber, having a sensor arrangement (2) with at least one light source (12, 12′) and one light receiver (11), and a labyrinth system (7) with screens (16) arranged on the peripher... | 04/29/2008 |
| 7361922 | Differential absorption lidar apparatus having multiplexed light signals with two wavelengths in a predetermined beam size and beam shape A differential absorption lidar includes: a light signal generation unit for generating first, second CW light signals with first, second wavelengths having different absorption coefficients with respect to a target, a light intensity modulation unit for subjecting ... | 04/22/2008 |
| 7361472 | Methods for providing extended dynamic range in analyte assays Methods for enhancing the dynamic range for specific detection of one or more analytes in assays using scattered-light detectable particle labels. The methods involve utilizing variations in detection technique and/or signal processing to extend the dynamic range to... | 04/22/2008 |
| 7352461 | Particle detecting method and storage medium storing program for implementing the method A particle detecting method which is capable of detecting the number of low-speed particles accurately, and a storage medium storing a program for implementing the method. Intensity of scattered light generated when a light emitted into a gas stream is scattered by ... | 04/01/2008 |
| 7330262 | Methods and apparatus for determining the content materials of a liquid employing a piston movable within a measuring chamber The contents of a liquid medium are determined using a light source and an optical detector, for example a spectrometer. A longitudinally displaceable piston sucks the medium into a cylindrical glass measuring chamber and evacuates the liquid from the chamber. At le... | 02/12/2008 |
| 7327022 | Assembly, contact and coupling interconnection for optoelectronics A novel micro optical system as a platform technology for electrical and optical interconnections, thermal and mechanical assembly and integration of electronic, optoelectronic, passive and active components. This platform provides optical coupling and chip-to-chip ... | 02/05/2008 |
| 7327247 | Fire detection system and method using multiple sensors Outputs from a plurality of different ambient condition sensors are cross correlated so as to adjust a threshold value for a different, primary, sensor. Cross-correlation processing can be carried out locally in a detector or remotely. To minimize false alarming, th... | 02/05/2008 |
| 7323016 | Regulation of a wash column in a melt crystallization process The present invention relates to the use of an optical line detector for regulating the position of the wash front and/or of the build-up front of the crystal bed of a wash column in a melt crystallization process and a corresponding regulation method. The line dete... | 01/29/2008 |
| 7323399 | Clean process for an electron beam source One embodiment of the present invention is a method for cleaning an electron beam treatment apparatus that includes: (a) generating an electron beam that energizes a cleaning gas in a chamber of the electron beam treatment apparatus; (b) monitoring an electron beam ... | 01/29/2008 |
| 7324004 | Cargo smoke detector and related method for reducing false detects A method for reducing false detects may include emitting an infrared light beam from a primary emitter to a primary monitor detector, measuring a first voltage value using a primary receive detector and setting a primary smoke alarm flag corresponding to a primary c... | 01/29/2008 |
| 7315357 | Imaging and analyzing parameters of small moving objects such as cells Light from an object such as a cell moving through an imaging system is collected and dispersed so that it is imaged onto a plurality of separate detectors. The light is spectrally dispersed by a plurality of spaced-apart dichroic reflectors, each detector receiving... | 01/01/2008 |
| 7311849 | Control device for the separate collection of blood components in output from a blood centrifugation cell The invention provides a control device for the separate collection of blood components in output from a blood centrifugation cell. The control device comprises: a support which comprises a recess for containing a duct; a visible-light emitter with a corresponding r... | 12/25/2007 |
| 7309873 | Raindrop sensor A raindrop sensor includes a light-emitting element, a light-receiving element and a light guide body. The light-emitting element and the light-receiving element face a transparent panel. The light guide body, which is mounted on the transparent panel, includes an i... | 12/18/2007 |
| 7301641 | Fiber optic smoke detector A passive sensor housing has an air gap formed therein between a collimating lens and a lens focused mirror reflecting optical light signals transmitted through the lens into the air gap within which smoke is received through screened openings in the housing. The op... | 11/27/2007 |
| 7297932 | Vehicle optoelectronic precipitation sensor with adjustable lens holder An optoelectronic sensor for sensing wetting of a windshield includes a first circuit, and a radiation emitter and a radiation detector both arranged on the first circuit to emit radiation toward the windshield and to detect radiation reflected from the windshield. ... | 11/20/2007 |
| 7294513 | Method and apparatus for characterizing solutions of small particles A method and apparatus is described by which means molecules in suspension may be characterized in terms of the size and mass distributions present. As a sample solution is separated by centrifugal means, it is illuminated at a particular radial distance from the ax... | 11/13/2007 |
| 7295942 | Increasing robustness of online calibration through motion detection In a method for controlling an orienting/positioning system, the orienting system comprises at least one sensor means, an external motion detection device for detecting an externally-caused motion in the environment of the sensor means and actuator means for control... | 11/13/2007 |
| 7291856 | Sensor and methods for measuring select components in moving sheet products A compact, long lasting sensor for measuring components such as moisture in moving sheets including paper in a papermaking apparatus employs light sources that produce radiation within defined wavelength regions of interest and the light sources are modulated at hig... | 11/06/2007 |
| 7286719 | Method and apparatus for correcting crosstalk and spatial resolution for multichannel imaging A multi-channel imaging system generates an ensemble of images for each field of view of an object. Each image in the ensemble is intended to contain information from only one source among a plurality of sources for the object. However, due to crosstalk, at least a ... | 10/23/2007 |
| 7281429 | Optical hydrophone for a shock-wave field with long service life An optical hydrophone for measurement of the acoustic pressure distribution in a fluid medium has a light source that illuminates an area of a boundary region between an optically transparent body and the fluid medium. A light receiver measures the intensity of the ... | 10/16/2007 |
| 7271381 | Device to detect individual moving objects having very small dimensions The invention relates to a device to detect individual moving objects having very small dimensions. The device according to the invention comprises a photo electric sensor having at least one light beam transmitter and one light beam receiver, the objects that are t... | 09/18/2007 |
| 7268881 | Light scattering detector The invention concerns high sensitivity light scattering detection and its application to evaporative light scattering detection in liquid chromatography. The exemplary embodiment includes a detection cell to accept particles suspended in a gas stream and permit a p... | 09/11/2007 |
| 7265832 | Optical flow meter for measuring gases and liquids in pipelines An optical system design for measuring the velocity of fluids flowing through pipes or other conduits is disclosed. The optical system is comprised of a means for delivering two beams through a window in the wall of the pipe, focused to two points aligned along an a... | 09/04/2007 |
| 7263875 | Multi-layer windshield moisture detector A moisture detection system includes a moisture detector having a first electrical conductor, a first substrate having the first electrical conductor disposed on one surface thereof, a spacing layer coupled to the other surface of the first substrate, a second subst... | 09/04/2007 |
| 7260483 | Real-time detection method and system for identifying individual aerosol particles An improved method and system of identifying individual aerosol particles in real time. Sample aerosol particles are collimated, tracked, and screened to determine which ones qualify for mass spectrometric analysis based on predetermined qualification or selection c... | 08/21/2007 |
| 7256979 | Ion generator, and electric apparatus and air conditioning apparatus incorporating the same A booster coil is stored in a coil storing room provided in the bottom section of a common case having an opening on one side, and is insulation-molded with a filler. A circuit substrate is inserted into the common case and supported by a supporting edge which is pr... | 08/14/2007 |
| 7248341 | Apparatus and method for oscillating a transmitted laser beam of light within the field of view (FOV) of a light receiving system An apparatus and method for the measurement of water depth between a water surface and water bottom and adapted for mounting on an aircraft flying above the water surface. The apparatus includes a transmitter and a receiver of laser light. The laser light is reflect... | 07/24/2007 |
| 7247838 | Rain/moisture and object imaging system for vehicle An image processing system includes a lamp which emits light to a glass, an imaging device which captures light which is emitted from the lamp and reflected by the glass, and an optical filter, located between the glass and the imaging device, which transmits rays w... | 07/24/2007 |
| 7246396 | Process for operating a water-bearing domestic appliance and domestic appliance for same A sensor system for a water-bearing domestic appliance for monitoring the treatment fluid in the appliance. The sensor system measures the treatment fluid parameters in a program sequence that includes alternating idle and in motion operations of the appliance. The ... | 07/24/2007 |
| 7245379 | Device and method for investigating analytes in liquid suspension or solution An optical detection device is provided for analysing analytes in a liquid suspension or solution that can detect and process a large number of wavelengths of incident and fluorescent light simultaneously, which is small in size and can be easily adapted to differen... | 07/17/2007 |
| 7244939 | Gas sensor A gas sensor of the type that detects the presence of a specific gas by monitoring the absorption of optical radiation transmitted through a chamber containing a sample of gas under test comprises an optical source for emitting radiation therefrom and a detector sen... | 07/17/2007 |
