Patents Examined by Roy Punnoose
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Patent number: 7929124Abstract: The invention relates to an object of value with a security element, which has at least one liquid-crystalline material, the liquid-crystalline material effecting a linear polarization of light.Type: GrantFiled: July 12, 2004Date of Patent: April 19, 2011Assignee: Giesecke & Devrient GmbHInventors: Juergen Schuetzmann, Bernd Wunderer, Manfred Heim
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Patent number: 7929129Abstract: Glass inspection systems are provided for detecting particles and defects in or on a glass sheet or glass ribbon (2, 14). The system is mounted so that the surface (1) to be inspected is in the object plane of a reflective lens (10). The lens images a thin stripe area, long in the direction tangent to the lens circumference and short in the radial direction, onto a linescan camera (18). A line illuminator (12) can be mounted so that it illuminates the stripe area. To perform the inspection, the system is moved with respect to the glass in the direction perpendicular to the long axis of the stripe, either by moving the system over the glass or by moving the glass while the system is fixed. Image information is collected by the linescan camera during this motion and assembled into an image.Type: GrantFiled: May 19, 2010Date of Patent: April 19, 2011Assignee: Corning IncorporatedInventors: David Berg, Clarke Kimberly Eastman, Jacques Gollier
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Patent number: 7929153Abstract: A device for acquiring the three-dimensional shape of the surface of an object comprises a lens; deflection means; at least two masks; at least two projection assemblies adapted to emit light beams which, by passing through the masks and the deflection means and by traveling along a channel which passes through the lens, strike the object to be acquired, projecting onto it the mutually offset images of the masks; means for acquiring the images reflected by the object; and means for processing the reflected images. The deflection means are semireflecting and the masks are adapted to project fringe images of the cosinusoidal type through the deflection means.Type: GrantFiled: May 23, 2007Date of Patent: April 19, 2011Inventor: Abramo Barbaresi
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Patent number: 7920262Abstract: A system for measuring backscattered light from a sample is given. Light is output from a light source towards a rotating mirror, and then reflected by the rotating mirror towards the sample. The sample reflects backscattered light back towards the rotating mirror, which, having moved during the time it took for the light to propagate from the mirror to the sample and back, reflects the backscattered light to a detector located at a physical separation from the light source. The detected backscattered light may be analyzed to determine various properties of the sample.Type: GrantFiled: September 17, 2008Date of Patent: April 5, 2011Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Gorden W. Videen, Karri Olavi Muinonen
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Patent number: 7916293Abstract: Described herein is a particle detection system capable of spatially resolving the interaction of particles with a beam of electromagnetic radiation. Using a specific electromagnetic beam cross sectional shape and orientation, the detection sensitivity of a particle detection system can be improved. Also provided are methods for detecting and sizing particles in a manner that has low background signal and allows for spatially resolving the scattering or emission of electromagnetic radiation from particles.Type: GrantFiled: December 2, 2008Date of Patent: March 29, 2011Assignee: Particle Measuring Systems, Inc.Inventors: John Mitchell, Jon Sandberg, Karen R. Sandberg, legal representative, Dwight A. Sehler
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Patent number: 7911611Abstract: An optical system of an atomic oscillator that regulates an oscillation frequency by using an optical absorption property by one of a double resonance method utilizing light and micro waves and a coherent population trapping (CPT) method utilizing a quantum interference effect produced by two kinds of resonance light, includes: a light source emitting the resonance light; a gas cell disposed at an emitting side of the light source, sealing a gaseous metal atom therein and transmitting the resonance light through a metal atom gas; a light detecting unit detecting the transmitted light that is transmitted through the metal atom gas; and a fluorescence blocking unit blocking at least a part of fluorescence, which is emitted from the metal atom gas to the light detecting unit, and disposed between the metal atom gas and the light detecting unit.Type: GrantFiled: June 23, 2009Date of Patent: March 22, 2011Assignee: Epson Toyocom CorporationInventor: Koji Chindo
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Patent number: 7911595Abstract: A liquid fuel property detection apparatus includes a fuel passage, a light emitting device for emitting a light including a plurality of predetermined wavelengths toward the fuel in the passage, a light receiving device for receiving the light passing through the fuel, and a calculation unit for calculating the concentration of at least one of aroma, paraffin and olefin, which are hydrocarbon component components contained in the fuel. The calculation unit calculates the concentration of a specific component, which is one of aroma, paraffin and olefin, based on the reference transmittance of light in the specific component and the actual transmittance calculated from the amount of light emitted by the light emitting device and the amount of light received by the light receiving device with respect to each wavelength of the light.Type: GrantFiled: November 27, 2009Date of Patent: March 22, 2011Assignees: Denso Corporation, Nippon Soken, Inc.Inventors: Tetsuro Serai, Kazuki Matsuo, Hiroshi Nakamura
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Patent number: 7911596Abstract: The present invention provides an image pickup apparatus with a thin-shaped body. The image pickup apparatus includes: emitter means 8 for emitting an imaging light; light transmission means for leading the imaging light that comes from one face directly to another face, and leading the imaging light that comes from a certain position of the another face to a different position of the one face; and image pickup means for picking up an image equivalent to the imaging light from the light transmission means. Therefore, the emitter means can be placed substantially on the same plane as the image pickup means under the one face M1 of the light transmission means. Thus, the body of the image pickup apparatus can be thinner.Type: GrantFiled: October 28, 2009Date of Patent: March 22, 2011Assignee: Sony CorporationInventor: Hideo Sato
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Patent number: 7903238Abstract: A method includes selecting one of performing ellipsometry or performing optical stress generation and detection. The method also includes, in response to selecting performing ellipsometry, applying at least one first control signal to a controllable retarder that modifies at least polarization of a light beam, and performing ellipsometry using the modified light beam. The method further includes, in response to selecting performing optical stress generation and detection, applying at least one second control signal to the controllable retarder, and performing optical stress generation and detection using the modified light beam. Apparatus and computer readable media are also disclosed.Type: GrantFiled: July 9, 2007Date of Patent: March 8, 2011Assignee: Rudolph Technologies, Inc.Inventors: Manjusha Mehendale, Michael J. Kotelyanskii, Yanwen Hou, Jim Onderko, Guray Tas
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Patent number: 7903263Abstract: A position detection sensor is provided and includes: a scale including a self-emitting part that emits light to form a pattern on the scale; and a relative movable part provided in such a manner to be opposed to the scale and to be movable relative to the scale, the relative movable part including a light receiving part that detects the light emitted at a position in a portion of the scale where the pattern is formed, the position corresponding to a current position of an object to be measured. At least one of a traveling amount, traveling speed and absolute position of the object is detected based on a detection signal outputted from the light receiving part.Type: GrantFiled: May 15, 2009Date of Patent: March 8, 2011Assignee: Fujinon CorporationInventor: Toshiharu Chuma
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Patent number: 7903241Abstract: A method for the determination of the red blood cell indices including the volume, and hemoglobin content and concentration for individual red blood cells, as well as red blood cell population statistics, including total number of red blood cells present in the sample, and mean values for each of the aforementioned indices within a substantially undiluted blood sample is provided.Type: GrantFiled: March 20, 2009Date of Patent: March 8, 2011Assignee: Abbott Point of Care, Inc.Inventors: Stephen C. Wardlaw, Robert A. Levine, Darryn W. Unfricht, Niten V. Lalpuria, Jeremy R. Hill
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Patent number: 7903242Abstract: A fingerprint imaging system configured to capture an image of a friction ridge pattern of a subject (e.g., a fingerprint, a palm print, a hand print, a footprint, etc.). The system may include one or more components that reduce the impact of ambient light on the performance of the system. In some implementations, the system may reduce the impact of ambient light without requiring additional power (e.g., to generate an increased amount of radiation) and without including “external” hoods and/or covers designed to block ambient light prior to the ambient light entering system. Instead, the system may reduce the impact of ambient light on performance by blocking ambient light internally within the system along an optical path of radiation used to electronically capture an image of the friction ridge pattern.Type: GrantFiled: September 24, 2010Date of Patent: March 8, 2011Assignee: Identification International, Inc.Inventors: Richard Karl Fenrich, Lin Li
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Patent number: 7898666Abstract: Aspects of the disclosure can provide a method of detecting a density of a pigmented layer on an object. The method can include emitting a first modulated light onto a first portion of the object having the pigmented layer, detecting a first reflected light of the first modulated light from the first portion of the object, and determining the density of the pigmented layer according to the first reflected light. Furthermore, the method can include emitting a second modulated light onto a second portion of the object, detecting a second reflected light of the second modulated light from the second portion of the object, and determining the density of the pigmented layer according to a relative ratio that is related to the first reflected light and the second reflected light.Type: GrantFiled: August 3, 2007Date of Patent: March 1, 2011Assignee: Xerox CorporationInventors: Julianna Elizabeth Lin, Aaron Michael Burry, Peter Paul, William C. Dean, William Lee Kennedy
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Patent number: 7898654Abstract: A foreign matter detector and a foreign matter detecting method are provided, with which foreign matter detection performance can be improved. The foreign matter detector comprises: a means for irradiating first inspection light and second inspection light to an inspection area such that their incident planes are perpendicular to each other; a measuring means for measuring the spectrum of reflected light, the reflected light being a reflection of the inspection light at the inspection area; and a means for determining, by analyzing the spectrum of the reflected light, whether any foreign matter is intermingled or not.Type: GrantFiled: July 17, 2009Date of Patent: March 1, 2011Assignee: Sumitomo Electric Industries, Ltd.Inventors: Tatsuhiko Saitoh, Yuji Kobayashi, Takayuki Shimazu
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Patent number: 7894068Abstract: A transmissive and/or reflective optical filter can receive input light, which can emanate from objects traveling along paths past the filter, e.g. from biological cells, viruses, colored spots or other markings on documents, and so forth. In response, the filter can provide output light in accordance with a combined transmission function that is approximately equal to a superposition or scaled superposition of a set of simpler transmission functions. The set can include two or more non-uniform transmission functions, a subset of which can be different from each other and positioned relative to each other so that the output light has time variation in accordance with each of the functions in the subset. The subset could include, for example, a random function and a periodic function, a chirp function and a periodic function, or any other suitable combination of two or more simpler functions.Type: GrantFiled: February 4, 2008Date of Patent: February 22, 2011Assignee: Palo Alto Research Center IncorporatedInventors: Michael Bassler, Peter Kiesel, Markus Beck, Alex Hegyi, Tobias Buergel, Noble M. Johnson
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Patent number: 7894071Abstract: The present invention concerns a measurement chip (1) for carrying out measurements of transmission and/or emission and/or scattering of light by a fluid sample in an operator unit, wherein the measurement chip has a base plate (2) produced from a transparent polymer material, provided in the base plate (2) are at least one measurement cell (3) for receiving a fluid sample and fluid passages (4, 4) for supplying and discharging fluid to and from the measurement cell (3), and provided in and/or on the base plate (2) outside the measurement cell (3) are mirror surfaces (5) which are so arranged that they direct light emitted from and/or scattered by a fluid sample in the measurement cell (3) from the measurement chip (1), preferably in the direction of a light detector provided in an operator unit.Type: GrantFiled: December 8, 2006Date of Patent: February 22, 2011Assignee: Institut Fuer Mikrotechnik Mainz GmbHInventors: Ines Frese, Elzbieta Nahrstedt, Klaus-Stefan Drese
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Patent number: 7894066Abstract: The image data capture of a test piece is performed with at least one first camera. A reference point of the test piece is determined by processing the image data recorded with the at least one first camera. A burner is positioned at a prescribed first distance from the reference point for the flame exposure of the test piece. At least one second camera may also detect whether the test piece exposed to a flame is burning or incandescing. At least one third camera may be used for monitoring the burner flame and at least one fourth camera may be used for determining whether the test piece drips while burning. Furthermore, at least one detector may used for detecting whether the drips ignite a pad of wadding positioned under the test piece.Type: GrantFiled: July 14, 2008Date of Patent: February 22, 2011Assignee: Underwriters Laboratories Inc.Inventors: Martin Behrendt, Bahman Sarabi, Wilfried Teeting
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Patent number: 7889338Abstract: A coordinate measuring machine for the structured illumination of substrates is disclosed. The incident light illumination means and/or the transmitted light illumination means have a pupil access via which at least one optical element is positionable in the optical illumination path. The size and/or type and/or the polarization of the pupil illumination may be manipulated such that the structured illumination of the substrate in the coordinate measuring machine corresponds to the structured illumination of this substrate in the exposure process with a stepper.Type: GrantFiled: May 27, 2008Date of Patent: February 15, 2011Assignee: Vistec Semiconductor Systems GmbHInventor: Michael Heiden
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Patent number: 7889342Abstract: A sensor is provided that measures web caliper using optical and magnetic measuring devices. The optical measuring devices may employ a confocal chromatic aberration method to accurately determine the distance to the moving web and the magnetic devices may be ferrite core coil and target. Means of stabilizing a moving web are included for improving dynamic measurement accuracy.Type: GrantFiled: August 28, 2008Date of Patent: February 15, 2011Assignee: ABB Ltd.Inventors: Ake Hellstrom, Rambod Naimi, Michael O'Hora
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Patent number: 7889344Abstract: A device for measuring intensity of a transmitted light, includes a first measuring unit that measures a first intensity of a light transmitted through a medium on a conveying path in its thickness direction and outputs a first measured value; a second measuring unit that is arranged adjacent to the first measuring unit, measures a second intensity of the light transmitted through the medium in the thickness direction, and outputs a second measured value; and an operating unit that obtains a true measured value from the first measured value and the second measured value.Type: GrantFiled: May 4, 2009Date of Patent: February 15, 2011Assignee: Ricoh Company, LimitedInventor: Masaru Yamagishi