Bizarre Patents
Cloaking System Using Optoelectronically Controlled Camouflage
A Cloaking System designed to operate in the visible light spectrum, utilizes optoelectronics and/or photonic components to conceal an object within it.
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| Number | Title | Issue Date |
| 8189200 | Fiber optic interferometric sensor array with increased multiplexing density An apparatus and a method for multiplexing and demultiplexing Fiber Optic Interferometric Sensors (FOISs), including means for forming an optical source, at least one sensing cable, at least one wavelength demultiplexing system, and a calibration system. ... | 05/29/2012 |
| 8045174 | Assessing a network A network is assessed, in particular, a network having a main line and a plurality of branch lines. The method includes the steps of: (i) introducing test signals into the main line, the main line being coupled to the branch lines; (ii) imposing a modulation on test... | 10/25/2011 |
| 7995209 | Time domain multiplexing of interferometric sensors An optical sensor array includes a plurality of interferometric sensors that are disposed at a plurality of locations in a region of interest. To determine a physical parameter at the plurality of locations, the array is interrogated with a plurality of optical puls... | 08/09/2011 |
| 7952717 | Temperature measuring apparatus and temperature measuring method A temperature measuring apparatus includes a light source, a first splitter, a second splitter, a reference beam reflector, an optical path length adjuster, a reference beam transmitting member, a first to an nth measuring beam transmitting member and a photodetecto... | 05/31/2011 |
| 7920270 | Apparatus for interferometric sensing An apparatus for interferometric sensing, comprising a plurality of single-longitudinal mode laser sources to each provide radiation at a corresponding plurality of selected wavelengths, and at least one modulator to frequency or phase modulate the radiation from ea... | 04/05/2011 |
| 7864329 | Fiber optic sensor system having circulators, Bragg gratings and couplers A method and apparatus for detecting seismic vibrations using a series of MEMS units, with each MEMS unit including an interferometer is described. The interferometers on the MEMS units receive and modulate light from two differing wavelengths by way of a multiplexi... | 01/04/2011 |
| 7864330 | Method and device for calibrating a light intensity measurement device It is an object of the present invention to provide a method and a device for automatically calibrating a light intensity measurement device. The device (1) includes an optical switch (3) for switching a route of output from an optical intensity modula... | 01/04/2011 |
| 7773231 | Differential pressure measuring system and differential pressure measuring method A differential pressure measuring system includes a light source for emitting a light, a first transducer for attenuating the intensity of the emitted light in a first range, depending on a first pressure, and providing a first light, a second transducer for attenua... | 08/10/2010 |
| 7728982 | Fiber-optic assay apparatus based on phase-shift interferometry Apparatus and method for detecting the presence or amount or rate of binding of an analyte in a sample solution is disclosed. The apparatus includes an optical assembly having first and second reflecting surfaces separated by a distance “d” greater than 50 nm, w... | 06/01/2010 |
| 7656536 | Fiber-optic assay apparatus based on phase-shift interferometry Apparatus and method for detecting an analyte in a sample based on optical interference. The apparatus includes a light source, detector unit and one or more disposable detector tips. The apparatus also includes an optical coupling assembly that couples light from t... | 02/02/2010 |
| 7623245 | Differential pressure measuring system and differential pressure measuring method A differential pressure measuring system includes a light source for emitting a light, a first transducer for attenuating the intensity of the emitted light in a first range, depending on a first pressure, and providing a first light, a second transducer for attenua... | 11/24/2009 |
| 7576864 | Interferometric measuring device for recording geometric data for surfaces An interferometric measuring device for recording geometric data for surfaces of at least one object, including a beam supply section including a modulation interferometer fed by a light source including temporarily coherent broadband radiation, a measuring interfer... | 08/18/2009 |
| 7548319 | Interferometric method and apparatus for measuring physical parameters A method of measuring a selected physical parameter at a location within a region of interest comprises the steps of: launching optical pulses at a plurality of preselected interrogation wavelengths into an optical fiber (1) deployed along the region of inter... | 06/16/2009 |
| 7502120 | Fiber optic interferometric sensor array The invention relates to an apparatus for multiplexing Fiber Optic Interferometric Sensors (FOISs), which apparatus comprises means (1) forming the an optical source for providing m*n distinct wavelengths λ11, λ12, . . . , λ1n, λ... | 03/10/2009 |
| 7480056 | Multi-pulse heterodyne sub-carrier interrogation of interferometric sensors A method for interrogating time-multiplexed interferometric sensors using multiple interrogation pulses so as to increases the allowable interrogation pulse duty-cycle and improve the signal-to-noise ratio. In each TDM repetition period a sequence of multiple interr... | 01/20/2009 |
| 7466422 | Method and apparatus for suppression of crosstalk and noise in time-division multiplexed interferometric sensor systems Unwanted signal components in time-division multiplexed (TDM) systems may lead to crosstalk and noise if these pulses overlap with signal pulses from an interrogated sensor. The crosstalk and noise are dominated by interference between the signal pulses from the int... | 12/16/2008 |
| 7456974 | Optical measuring system for detecting geometric data of surfaces An optical measuring system for detecting geometric data of surfaces of at least one object is described, comprising a beam delivery section, a probe system which is connected to the latter and has a plurality of probe outputs for output of a particular measuring be... | 11/25/2008 |
| 7433045 | Active coherence reduction for interferometer interrogation Methods and apparatus reduce coherence of an optical signal that is used to interrogate optical interferometric sensors. The optical field phasor of the interrogation source is modulated in a controlled manner to produce a broadened optical source power spectrum at ... | 10/07/2008 |
| 7417740 | Single trace multi-channel low coherence interferometric sensor Interferometers and autocorrelator based sensors are disclosed that are configured to have multiple sample arms which can be scanned and the backscattered low coherence source light from a sample resolved in a single sweep of one or more variable delays of the senso... | 08/26/2008 |
| 7366366 | FBG sensing system To provide a low-cost FBG sensing device having a high reliability, suitable for high-speed measurement such as vibration measurement, able to perform a remote measurement, and simple data processing, the FBG sensing device comprising one or more light sources each ... | 04/29/2008 |
| 7357021 | Methods of monitoring downhole conditions Methods of monitoring various downhole conditions are described, including a system for determining and/or identifying the flow of fluid in a well, determining sand production in a well, identifying localized events in a well, determining the apparent flow velocity ... | 04/15/2008 |
| 7356952 | System for coupling package displays to remote power source A merchandising system having a power distribution device associated with a package support system, and a package having a sensory output such as an image display capable of using power, data and/or signals provided from the power distribution device to produce a de... | 04/15/2008 |
| 7359061 | Method and apparatus for providing polarization insensitive signal processing for interferometric sensors A method and apparatus that uses specific source modulation and detectors to detect a response that carries information about a system response matrix associated with each sensor in a interferometric sensor array and extracting a sensor response in a manner that eli... | 04/15/2008 |
| 7355715 | Temperature measuring apparatus, temperature measurement method, temperature measurement system, control system and control method Light from a light source is split at a first splitter into a temperature measurement beam and a reference beam, the temperature measurement beam is further split at a second splitter into first through nth measurement beams, and the reference beam is reflected at a... | 04/08/2008 |
| 7356206 | Integrated optics polarization beam splitter using form birefringence A method for separating the orthogonal polarization components of an incident optical signal into two spatially separated output ports is described. The method comprises a Mach-Zehnder interferometer where one of the two branches has a section of waveguide that exhi... | 04/08/2008 |
| 7349591 | Pressure compensated optical accelerometer, optical inclinometer and seismic sensor system An optical accelerometer includes means for changing the length of at least one optical fiber in response to acceleration functionally coupled to the at least one optical fiber. The fiber and the means for changing length are enclosed in a pressure compensated housi... | 03/25/2008 |
| 7343061 | Integrated photonic amplifier and detector An asymmetric twin waveguide (ATG) structure with an integrated amplifier and detector fabricated in a single active waveguide layer is disclosed. The structure comprises an active waveguide layer formed on a passive waveguide layer. The active and passive waveguide... | 03/11/2008 |
| 7339678 | Method and system of using odd harmonics for phase generated carrier homodyne A method and system for providing fast interrogation of a signal received from a fiber optic sensor array using a low drive voltage, by modulating the array signal with a phase generated carrier optical signal having an odd harmonic modulation frequency, sending it ... | 03/04/2008 |
| 7336365 | Method and apparatus for suppression of crosstalk and noise in time-division multiplexed interferometric sensor systems Unwanted signal components in time-division multiplexed (TDM) systems may lead to crosstalk and noise if these pulses overlap with signal pulses from an interrogated sensor. The crosstalk and noise are dominated by interference between the signal pulses from the int... | 02/26/2008 |
| 7333689 | Photonic integrated devices having reduced absorption loss An asymmetric twin waveguide (ATG) structure with quantum-well intermixing in the taper region of the active waveguide is disclosed. The structure comprises a first waveguide, a second waveguide, and a taper formed in the second waveguide. The taper has an intermixe... | 02/19/2008 |
| 7327462 | Method and apparatus for direct detection of signals from a differential delay heterodyne interferometric system A direct detection method and apparatus for a fiber optic acoustic sensor array systems using an in-line Michelson sensor TDM array and an interferometric section having two acousto-optic modulators that produce optical pulses that are frequency shifted with respect... | 02/05/2008 |
| 7327910 | Twin waveguide based design for photonic integrated circuits An asymmetric twin waveguide (ATG) structure is disclosed that significantly reduces the negative effects of inter-modal interference in symmetric twin-waveguide structures and which can be effectively used to implement a variety of optical devices. The ATG structur... | 02/05/2008 |
| 7324207 | Optical pulse correlator having an interferometer array An optical device is useful for analyzing an optical signal pulse to determine information related to the pulse, such as information related to its temporal coherence length. The optical device generally includes a plurality of interferometric devices to generate on... | 01/29/2008 |
| 7319525 | Fiber-optic assay apparatus based on phase-shift interferometry Apparatus and method for detecting an analyte in a sample based on optical interference. The apparatus includes a light source, detector unit and one or more disposable detector tips. The apparatus also includes an optical coupling assembly that couples light from t... | 01/15/2008 |
| 7312435 | Determination of a physical state of an optical device The present invention relates to a determination of a physical state of an optical device by measuring a response signal. At least two subsequent measurements are executed. Therefore, a first optical signal is transmitted to the optical device, wherein a firs... | 12/25/2007 |
| 7304744 | Apparatus and method for measuring the thickness of a thin film via the intensity of reflected light A thin film thickness measurement apparatus that can measure immediately after film growth thickness of a thin film of a substrate that is grown includes a light receiving/projecting unit directing light substantially perpendicular to the substrate and receiving lig... | 12/04/2007 |
| 7305153 | Multi wavelength sensor array The number of sensors that can be used by an SSA system including a single source can be increased by using a multi wavelength source to send different wavelength pulses to each of a plurality of different sensor array ladders, particularly Sagnac sensor array (SSA)... | 12/04/2007 |
| 7302124 | Twin waveguide based design for photonic integrated circuits An asymmetric twin waveguide (ATG) structure is disclosed that significantly reduces the negative effects of inter-modal interference in symmetric twin-waveguide structures and which can be effectively used to implement a variety of optical devices. The ATG structur... | 11/27/2007 |
| 7295321 | VISAR interferometer with field elements The present invention includes an interferometer for VISAR. Optionally, the present VISAR system includes intracavity imaging design with converging beams and field elements to, among other possible purposes, image the array. An optional embodiment of the present VI... | 11/13/2007 |
| 7295493 | Pressure tolerant fiber optic hydrophone An interferometric hydrophone is disclosed that comprises a first mandrel defining an interior that is open to surrounding fluid. A sensing optical fiber is wound upon the first mandrel. A second mandrel is positioned in surrounding relationship with respect to the ... | 11/13/2007 |
