Said, US
Ahmed Said, Saratoga, CA US
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20080310563 | BROADCAST CHANNEL ESTIMATOR - A communication system comprises a receiver, which may generate broadcast coefficients that represent the characteristics of a channel using the channel information encoded in the segment synchronization units. The receiver may also use the channel information encoded in both the segment synchronization units and the field synchronization units to accurately determine the characteristics of a long channel. | 12-18-2008 |
20100104050 | SYSTEM AND METHOD FOR ENHANCED SYMBOL GENERATION - According to some embodiments, an input symbol may be received, and a hard symbol may be generated from the input symbol. A probability associated with the hard symbol may be calculated along with a probability associated with a previous hard symbol. An enhanced symbol may then be determined as a function of a comparison between the probability associated the hard symbol and the previous hard symbol. | 04-29-2010 |
Ali Said, Ann Arbor, MI US
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20080204749 | Method, system and apparatus for monitoring variations in the size of particles present in a fluid - The present invention relates to a method, system and apparatus for continuously monitoring variations in the size of particles present in a fluid on a real time basis. The method comprises of passing one or more optical signal through the fluid such as engine oil. The variation (attenuation or enhancement) in the intensity of the optical signal is continuously measured with respect to time. In an embodiment, the method, system and apparatus of the present invention enable monitoring of the amount, size and onset of particle agglomeration using single or multiple wavelengths as interrogating optical signal(s). An exemplary embodiment is provided for monitoring of the amount, size and onset of soot particle agglomeration in engine oil using single or multiple wavelengths as interrogating optical signal(s). | 08-28-2008 |
20090145975 | Fuel Injector - A fuel injector and a method for manufacturing a fuel injector are described. The fuel injector includes a glass substrate and a nozzle enclosed within the glass substrate. The nozzle includes at least one injection hole. The method of manufacturing a fuel injector includes defining a shape of at least one injection hole in a glass substrate to obtain an at least one outlined injection hole and etching the at least one outlined injection hole to obtain the at least one injection hole. | 06-11-2009 |
20130342903 | SUBSURFACE GLASS RETICLES - An optical instrument for light incoming along a principal optical axis includes a glass block and a subsurface object within the glass block. The subsurface object includes an arrangement of object marks. Each object mark includes a plurality of scattering layers stacked against the principal optical axis of the incoming light. First and second scattering layers of the plurality of scattering layers have different polarization responses. | 12-26-2013 |
Amir Said, Palo Alto, CA US
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20080252498 | Coding data using different coding alphabets - Coding unsigned integer data of a sequence. A plurality of segments of the sequence are identified, wherein a segment of the plurality of segments comprises at least one unsigned integer of the unsigned integer data, and wherein the plurality of segments are based in part on context within the sequence. The plurality of segments are coded, wherein each segment of the plurality of segments is coded using a different coding alphabet, wherein a coding alphabet is constrained at least by unsigned integers of a corresponding segment. | 10-16-2008 |
20110211050 | AUTOSTEREOSCOPIC DISPLAY OF AN IMAGE - In a method of creating an autostereoscopic display of an image, a plurality of images are received at a spatial-resolution-to-angular-resolution-converter. The plurality of images each have differing incident angles with respect to the spatial-resolution-to-angular-resolution-converter. An autostereoscopically displayed image is created from the plurality of images using the spatial-resolution-to-angular-resolution-converter. | 09-01-2011 |
Amir Said, Cupertino, CA US
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20110026745 | DISTRIBUTED SIGNAL PROCESSING OF IMMERSIVE THREE-DIMENSIONAL SOUND FOR AUDIO CONFERENCES - Embodiments of the present invention are directed to audio-conference communication systems that enable audio-conference participants to identify which of the participants are speaking. In one embodiment, an audio-communication system comprises at least one communications server, a plurality of stereo sound generating devices, and a plurality of microphones. Each stereo sound generating device is electronically coupled to the at least one communications server, and each microphone is electronically coupled to the at least one communications server. Each microphone detects different sounds that are sent to the at least one communications server as corresponding sound signals. The at least one communications server converts the sound signals into corresponding stereo signals that when combined and played over each of stereo sound generating devices creates an impression for a person listing to any one of the stereo sound generating devices that each of the sounds emanates from a different virtual location in three-dimensional space. | 02-03-2011 |
20120087512 | DISTRIBUTED SIGNAL PROCESSING SYSTEMS AND METHODS - Systems and methods for parallel and distributed processing of audio signals produced by a microphone array are described. In one aspect, a distributed signal processing system includes an array of microphones and an array of processors. Each processor is connected to one of the microphones and is connected to at least two other processors, enabling communication between adjacent connected processors. The system also includes a computing device connected to each of the processors. Each microphone detects a sound and generates an audio signal, and each processor is configured to receive and process the audio signal sent from a connected microphone and audio signals sent from at least one of the adjacent processors to produce a data stream that is sent to the computing device. | 04-12-2012 |
20120093336 | SYSTEMS AND METHODS FOR PERFORMING SOUND SOURCE LOCALIZATION - Systems and methods for performing sound source localization are provided. In one aspect, a method for locating a sound source using a computing device subdivides a space into subregions. The method then computes a sound source power for each of subregions and determines which of the sound source energies is the largest. When the volume of the subregion is less than a threshold volume, the method outputs the subregion having the largest sound source power. Otherwise, the stages of partitioning, computing, and determining the subregion having the largest sound source power is repeated. | 04-19-2012 |
20120098820 | HYPER PARALLAX TRANSFORMATION MATRIX BASED ON USER EYE POSITIONS - A method for displaying a 3D image in virtual reality. The method includes defining a hyper parallax transformation matrix based on user eye position, applying the hyper parallax transformation matrix to a scene graph, and displaying hyper parallax of the 3D image. A realistic simulation of parallax of said 3D image is exaggerated. | 04-26-2012 |
20120194654 | EMBEDDED LIGHT FIELD DISPLAY ARCHITECTURE TO PROCESS AND DISPLAY THREE-DIMENSIONAL LIGHT FIELD DATA - An embedded light field display architecture to process and display three-dimensional light field data in a light field display is provided. The light field display architecture includes a plurality of hierarchical modules to decode compressed light field data associated with a light field and a plurality of tile modules embedded directly in the light field display to process light field data for display. A plurality of networking modules is also provided to transmit light field data among the hierarchical modules and the tile modules. | 08-02-2012 |
20120294374 | CONDITIONAL REPLENISHMENT FOR THREE-DIMENSIONAL IMAGES WITH BLOCK-BASED SPATIAL THRESHOLDING - A decoding architecture for decoding a multi-dimensional image for display in a light field display is provided. The multi-dimensional image is compressed in a plurality of blocks, with each block storing compressed light field data and a displacement range. A spatial thresholding module compares the displacement range in each block of the image to a difference between a current decoding position and a previous decoding position. A decoder module decodes a block according to a result oldie comparison. | 11-22-2012 |
20130003203 | SURFACE MICROSTRUCTURES FOR LIGHT SHAPING REFLECTORS - A method for designing microstructures for a light shaping reflector for use in a light field display is provided. A mathematical function is derived to reflect light uniformly from an incident light beam. Curved elements shaped by the mathematical function are combined to design the microstructures. The microstructures are formed in a reflective surface to provide the light shaping reflector for use in the light field display. | 01-03-2013 |
20130004059 | ALIGNING STEREOSCOPIC IMAGES - Systems, methods, and computer-readable and executable instructions are provided for aligning stereoscopic images. Aligning stereoscopic images can include applying, by a computer, a feature detection technique to a pair of stereoscopic images to detect a number of features in each stereoscopic image. Aligning stereoscopic images can also include creating, by the computer, a feature coordinate list for each stereoscopic image based on the feature detection and comparing, by the computer, the feature coordinate lists. Furthermore, aligning stereoscopic images can include aligning the stereoscopic images, by the computer, based on the comparison. | 01-03-2013 |
20130094712 | SYSTEMS AND METHODS FOR EYE TRACKING USING RETROREFLECTOR-ENCODED INFORMATION - Embodiments of the present invention are directed to eye tracking systems and methods that can be used in uncontrolled environments and under a variety of lighting conditions. In one aspect, an eye tracking system ( | 04-18-2013 |
20130188068 | Systems and methods for acquiring and processing image data produced by camera arrays - This disclosure is directed to camera systems including a camera array, data buses shared by the cameras, and one or more processors that process images captured by the camera array. In one aspect, a camera system ( | 07-25-2013 |
20140015942 | ADAPTIVE MONOSCOPIC AND STEREOSCOPIC DISPLAY USING AN INTEGRATED 3D SHEET - An adaptive monoscopic and stereoscopic display system is disclosed. The display system includes a display, a | 01-16-2014 |
20150070657 | SYSTEM AND METHOD OF PRESENTING 3D IMAGES FOR A DISPLAY - Disclosed is a three dimensional (3D) continuous display system based on a plurality of projexels. Each projexel may include of a plurality of light emitting devices. Each light emitting device may project a directional beam of light that spans an angular range. The sum of the angular ranges of each beam of light total an angular range for the projexel. Each projexel is also associated with a set of transition angles. The transition angles may be defined by the angle where two beams coincide. The projexels are configured such that sets of transition angles between adjacent projexels are offset. | 03-12-2015 |
Asaad Said, Tempe, AZ US
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20100080439 | Automatic Cell Migration and Proliferation Analysis - The disclosed methods and apparatus provide for the automatic segmentation and analysis of the overall migration rate and proliferation rate of cells that may be used with any resolution image and without the need to prepare the sample or the image before the image is analyzed. In particular embodiments, the method or apparatus of analyzing a cell image comprise performing a structure tensor analysis and/or regularization and/or a histogram-based analysis and/or a level-set analysis to classify pixels in the image into a region of interest (ROI), corresponding to cell clusters, and a non-significant region. Methods and apparatus for cell migration analysis comprise means for computing the areas of the segmented ROIs for a set of images. Methods and apparatus for cell proliferation analysis comprise means for counting the number of cells within the segmented ROIs for a set of images. | 04-01-2010 |
Bare Said US
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20120158556 | Dynamic Measurement Of Business Service Usage - Upon receiving a service call relating to completion of a business process that uses resources of a core software platform, a service meta-object comprising a business value calculation blueprint associated with the service call can be retrieved from a metadata repository. The business value calculation blueprint can include an algorithm for assigning a business value to the service call. The algorithm can include a specification of required input data about the service call. The required input data can be extracted from at least one of the service call and an application component from which the service call originated. The business value can be calculated based on the extracted required data and the business value calculation blueprint. Related methods, systems, and articles of manufacture are disclosed. | 06-21-2012 |
Bilal Said, Ann Arbor, MI US
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20150184470 | PLUNGER-TYPE WIRE RISER TENSIONER - Certain types of riser tensioner arrangements include a high-pressure accumulator; a pusher-type hydraulic cylinder; a first flow path coupling the high-pressure accumulator with a first volume of the cylinder to enable a first high-pressure fluid to flow therebetween; and a second flow path coupling the high-pressure accumulator with a second volume of the cylinder to enable a second high-pressure fluid to flow therebetween. The piston includes a seat and a hollow extension that defines part of the second volume of the cylinder. | 07-02-2015 |
Bilal Bhopal Said, Ann Arbor, MI US
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20130125744 | PROXIMITY SWITCH ACTUATION MECHANISM - An actuation mechanism for an electromagnetic switch for a hydraulic cylinder includes a housing adapted to be inserted into a cylinder head. A rod is slidably engaged in the housing and is adapted to move between a first position and a second position. A biasing element, which may be located inside or outside of the housing biases the rod into the first position. | 05-23-2013 |
20150322559 | MULTILAYER COATINGS SYSTEMS AND METHODS - The present disclosure relates to multilayered coating systems and methods. The multilayered coating when applied to a metal component utilized in a marine environment provides for corrosion and/or bio-fouling resistance. The multilayered coating includes a base layer and a superhydrophobic layer. | 11-12-2015 |
Boumsellek Said, San Diego, CA US
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20100076712 | GAS ANALYZER - A gas analyzer using a quadrupole mass spectrometric method etc. is provided with an ionizer | 03-25-2010 |
Fouad Samir Said, Los Angeles, CA US
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20160000986 | BLOOD OXYGENATION SYSTEM - A blood oxygenation system which prevents transmigration of blood to gaseous oxygen circuitry. The system includes a blood circuit, an oxygen supply circuit, an oxygen-blood interface in which gaseous oxygen is absorbed into the blood, and an oxygen disposal circuit for disposing of unused oxygen. The oxygen-blood interface is arranged to prevent transmigration of blood into the oxygen circuit. The blood circuit includes a pump and a blood de-aerator. The oxygen supply circuit includes an oxygen supply, an ozone generator, and an ozone destructor. A silica gel trap in the oxygen disposal circuit separates O | 01-07-2016 |
Hany Armia Said, Laguna Hills, CA US
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20120006749 | VESSEL DESALINATION SYSTEM AND METHOD - A multi-ported vessel system includes an outer pressure vessel containing a plurality of flow distribution tubes, each of which comprises a plurality of reverse osmosis membrane elements aligned serially within each tube. The outer pressure vessel includes bypass flow paths whereby feed water flows around each of the tubes within the vessel. Slots are disposed in the flow distribution tubes at the upstream end of each RO membrane element such that feed water reaches all RO membrane elements of the tubes in parallel. The serial alignment of the membranes also allows for serial water processing also. A product water tube collects the purified water from the reverse osmosis elements and provides it to a product water port. Brine water is provided to an output port to be discarded of for further processing. The parallel processing of feed water by all membrane elements results in increased productivity and reduced costs. | 01-12-2012 |
Jose E. Said, Orlando, FL US
Kousay Said, Birmingham, MI US
Patent application number | Description | Published |
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20100132295 | SIDING CONTAINING COMPOSITE BUILDING MATERIAL AND SIDING CLIP - Siding including composite building material and a siding clip are provided. The panel has male and female interlocking elements and may be formed from a composite building material having a foamed substrate having a foamed inner core and a dense integral skin, wherein the foamed substrate includes a polymer matrix and a reinforcing filler, and a urethane/acrylic coating applied to the foamed substrate at the front face of the siding panel, wherein the coating includes an IR-reflective pigment, wherein the urethane/acrylic coating is chemically and/or physically bound to the substrate. | 06-03-2010 |
20100132296 | SIDING CONTAINING COMPOSITE BUILDING MATERIAL AND INTERLOCKING MECHANISM - Siding including composite building material and an interlocking mechanism are provided. The panels, possibly in conjunction with particular fasteners, include interlocking elements and may be formed from a composite building material having a foamed substrate having a foamed inner core and a dense integral skin, wherein the foamed substrate includes a polymer matrix and a reinforcing filler, and a urethane/acrylic coating applied to the foamed substrate at the front face of the siding panel, wherein the coating includes an IR-reflective pigment, wherein the urethane/acrylic coating is chemically and/or physically bound to the substrate. | 06-03-2010 |
Mahmoud Said, Plainsboro, NJ US
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20120179935 | DYNAMIC TEST GENERATION FOR CONCURRENT PROGRAMS - A computer implemented method for dynamic test generation for concurrent programs, which uses a combination of concrete and symbolic execution of the program to systematically cover all the intra-thread program branches and inter-thread interleavings of shared accesses. In addition, a coverage summary based pruning technique, which is a general framework for soundly removing both redundant paths and redundant interleavings and is capable of speeding up dynamic testing exponentially. This pruning framework also allows flexible trade-offs between pruning power and computational overhead to be exploited using various approximations. | 07-12-2012 |
Nuder Said, Fort Worth, TX US
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20140048734 | PLUG VALVE HAVING PRELOADED SEAL SEGMENTS - A plug valve including a valve body having an inlet port, an outlet port and a central chamber extending between the inlet port and the outlet port. The valve also includes an inlet seal segment within the central chamber and includes a bore extending therethrough and aligned with the inlet port. An outlet seal segment is disposed within the central chamber having a bore extending therethrough and aligned with the outlet port. A plug member is disposed in the central chamber and is moveable between an open position, to facilitate fluid flow through the plug valve, and a closed position, to block fluid flow through the plug valve. First and second side segments are disposed between and interlocked to the inlet and outlet seal segments to encircle the plug member. The side segments are tensioned to preload the seal segments against the plug member to prevent the flow of fluid between the seal segments and the plug member. | 02-20-2014 |
20150345646 | PLUG VALVE HAVING PRELOADED SEAL SEGMENTS - A plug valve including a valve body having an inlet port, an outlet port and a central chamber extending between the inlet port and the outlet port. The valve also includes an inlet seal segment within the central chamber and includes a bore extending therethrough and aligned with the inlet port. An outlet seal segment is disposed within the central chamber having a bore extending therethrough and aligned with the outlet port. A plug member is disposed in the central chamber and is moveable between an open position, to facilitate fluid flow through the plug valve, and a closed position, to block fluid flow through the plug valve. First and second side segments are disposed between and interlocked to the inlet and outlet seal segments to encircle the plug member. The side segments are tensioned to preload the seal segments against the plug member to prevent the flow of fluid between the seal segments and the plug member. | 12-03-2015 |
Nuder M. Said, Fort Worth, TX US
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20130000745 | FLOWLINE FLAPPER VALVE - A check valve assembly has a body having a central cavity intersected by upstream and downstream flow passages. A seat is secured by a threaded engagement in the upstream flow passage. An access bore intersects the cavity and has a support shoulder formed in it. A holder is supported on the support shoulder. A flapper is pivotally secured to the holder and located in the cavity for movement between an open position and a closed position blocking flow through the seat. A straight edge portion in the access bore engages a straight edge portion of the holder to prevent rotation of the holder. A fastener extends through a hole in the support shoulder into engagement with the seat to prevent rotation of the seat. | 01-03-2013 |
Nuder M. Said, Arlington, TX US
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20100263744 | Flowline Flapper Valve - A check valve assembly has a body having a central cavity intersected by upstream and downstream flow passages. A seat is secured by a threaded engagement in the upstream flow passage. An access bore intersects the cavity and has a support shoulder formed in it. A holder is supported on the support shoulder. A flapper is pivotally secured to the holder and located in the cavity for movement between an open position and a closed position blocking flow through the seat. A straight edge portion in the access bore engages a straight edge portion of the holder to prevent rotation of the holder. A fastener extends through a hole in the support shoulder into engagement with the seat to prevent rotation of the seat. | 10-21-2010 |
Raffik Said, Rochester Hills, MI US
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20100059009 | ASSEMBLY AND METHOD FOR CONTROLLING AN AIR INTAKE RUNNER - An assembly for controlling an air intake runner of an air intake manifold. The assembly includes a cartridge including a plurality of compartments. Each of the compartments has a plurality of that are joined to define a central opening and an outer perimeter. Adjacent compartments are spaced apart to define a groove between each of the compartments. The assembly also includes bushing carriers that are configured to be snap-fit into one of the grooves of the cartridge. The assembly further includes bushings configured to rotatably fit within the central openings of the bushing carriers. Each of the bushings has an outer rim and an open center. Flaps including a slot and having a shape configured to substantially adjustably seal the central opening are also included and a shaft is included that extends through the slots of the flaps and the open centers of the bushings. | 03-11-2010 |
20110303178 | ASSEMBLY AND METHOD FOR CONTROLLING AN AIR INTAKE RUNNER - A method of modifying an air intake manifold to control air intake runners. The method includes the steps of providing a cartridge including a plurality of compartments, each spaced apart to define a groove therebetween, snap-fitting a bushing carrier having a rotatable bushing into each of the grooves, positioning a flap having a slot over each of the compartments, inserting a shaft through each slot and each bushing thereby rotatably retaining each of the flaps within one of the plurality of compartments, positioning the cartridge over the air intake manifold so that each of the plurality of compartments is substantially axially aligned with one of the air intake runners, and removably connecting the cartridge with the air intake manifold. | 12-15-2011 |
20120210970 | ASSEMBLY AND METHOD FOR CONTROLLING AN AIR INTAKE RUNNER - A subassembly for a valve device for controlling air flow in an intake manifold. The subassembly includes a cartridge including a plurality of compartments having partially open opposing sidewalls, wherein adjacent partially open side walls of adjacent compartments are spaced apart a distance to define a groove therebetween, a plurality of partitions each having a through-hole therein and being disposed in the grooves defined between adjacent partially open side walls of the adjacent compartments. The partitions complete the formation of the opposing side walls of the adjacent compartments and each compartment is alignable with an air intake runner of an intake manifold. | 08-23-2012 |
Raffik Said, Rochester, MI US
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20100031912 | ENGINE AIR INTAKE MANIFOLD HAVING A SHELL - Apparatus includes a motor-vehicle, internal-combustion-engine air intake manifold having an intake-manifold first shell attachable or monolithically joined to an intake-manifold second shell to surround an internal manifold volume. The first shell has a wall with at least a portion having undulating concave and convex regions as defined exterior to the internal manifold volume of the attached or monolithically-joined first shell and second shell. | 02-11-2010 |
Ronald A. Said, Broken Arrow, OK US
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20110013645 | ONE WAY INFORMATION TRANSMISSION METHOD - A method of one way transmission of information is provided. Preferably, the method steps include analyzing customer supplied information to determine a format to be selected, transmission priority, available transmission resources, and transmission destination. The preferred steps also include, determining a media transport method based on the transmission priority, transmission destination, and available transmission resources, and scheduling transmission of an information payload portion of the customer supplied information as a pre-emptible data reservation, based on a determined media transport method. The steps further preferably include, transforming the information payload into a selected format, storing the information payload in its formatted form on a non-volatile storage medium, encapsulating the information payload in its selected format within a media transport format, and transmitting the encapsulated information payload to the transmission destination. | 01-20-2011 |
20110013646 | ONE WAY SRS INFORMATION TRANSMISSION METHOD - An exemplary method of one way transmission of information is provided, the exemplary method steps preferably include partitioning a portion of each network device along a transmission path (based on a configuration of a source adaptive translation device), to form a source dedicated one way transmission path, analyzing source customer supplied information received by the source adaptive translation device to discern the source supplied information format, mapping the source discerned supplied information into a first synchronous transport signal using the source adaptive translation device, transmitting the first synchronous transport signal across the source dedicated one way transmission path, receiving the first synchronous transport signal at a destination adaptive destination device, and remapping the received first synchronous transport signal back into the discerned source supplied information using the destination adaptive translation device. | 01-20-2011 |
Ryan J. Said, Wixom, MI US
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20130152721 | STEERING WHEEL DAMPER AND ALTERNATE POWER STORAGE DEVICE - A damper for a steering wheel is provided. The damper may include a housing attached to the steering wheel and an energy-storage medium supported by the housing. | 06-20-2013 |
Ryan Khalil Said, Palo Alto, CA US
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20090281730 | Long-range lightning detection and characterization system and method - A long-range lightning detection and characterization system and method. Electromagnetic radiation produced by a lightning strike is sensed at a sensing location and a measured signal representative of the strike is produced that defines an amplitude versus time. A set of reference data containing waveforms comparable to the measured signal is established. The set of reference data defines a set of reference amplitudes versus time, representative of one or more predetermined reference lightning strikes at various predetermined distances, where for each of the distances, the reference lightning strikes have associated therewith various predetermined day/night percentages. The measured signal is compared with the reference data, the comparison including finding a correlation between the measured signal and a correlating waveform in the reference data. At least one of a propagation distance, a time-of-arrival, a polarity, and an amplitude of the measured signal is inferred by reference to the correlating waveform. | 11-12-2009 |
Sany Said, Clifton, VA US
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20160132980 | Techniques for Managing External Learning Content - A framework for facilitating the management of, and access to, external learning content within an organization is provided. In various embodiments, a computer system (or group of computer systems) implementing the framework can, e.g.: (1) import, into the organization's learning management system (LMS), metadata for external learning content items provided by an external content provider; (2) enable an organization administrator to assign each of the external learning content items to one or more users or programs/catalogs/curricula in the organization; (3) enable organization users to search for and launch their assigned external learning content items directly from the LMS; (4) automatically log the organization users into the external content provider systems as part of the item launch process; and (5) automatically track completion of the external learning content items. | 05-12-2016 |
Steve M. Said, Naples, FL US
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20150279197 | Method for Contacting Help Services - A method for contacting help services through a self-contained multi-platform software program run on an electronic device. An emergency alert request is received from a user input through the electronic device, a transmitter of a secondary device communicably coupled to the electronic device, or a sensor of the electronic device. The user input can be either a tactile input or audible input depending on the capabilities of the electronic device or the secondary device. Location data is then retrieved from a user account or a positioning receiver of the electronic device. The positioning receiver can retrieve subsequent location data if the electronic device is relocated. The emergency alert request and the location data are then used to generate an emergency alert message. The emergency alert message is then sent to a help service account as either a textual or audible message, wherein the contacted help service can then respond accordingly. | 10-01-2015 |
Waleed Said, Rockford, IL US
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20120026636 | ACTIVE AC INRUSH CURRENT CONTROL - Active inrush current control includes activating a load, the activating causing inrush current to flow, switching a semiconductor switching device to a current limiting state in response to the inrush current flow, the current limiting state being one of at least three states of the semiconductor switching device and the current limiting state dissipating the inrush current, and switching the semiconductor device to a full current flow state in response to the dissipating, the full current flow state not inhibiting current flow. | 02-02-2012 |
20120043921 | CONTROL OF POLE-CHANGE INDUCTION MOTORS - A ram air fan control system includes a ram air fan motor, the ram air fan motor being a pole-change induction motor with at least two pole-count configurations, a ram air fan contactor in operative communication with a first pole-count configuration of the ram air fan motor over a ram air fan conductor bus, a ram air fan power controller in operative communication with the ram air fan contactor, a common contactor in operative communication a second pole-count configuration of the ram air fan motor over a common conductor bus, the common conductor bus being separate and electrically isolated from the ram air fan conductor bus, and a common power controller in operative communication with the common contactor. | 02-23-2012 |
Waleed M. Said, Rockford, IL US
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20100045108 | Power conversion architecture with zero common mode voltage - A controller for a power conversion system reduces common-mode voltage generated by the power conversion system by imposing a constraint on the control signals applied to the power conversion system. The power conversion system includes a plurality of switching devices that are responsive to control signals provided by the controller to selectively connect each output of the power conversion system to one of a plurality of inputs. The controller generates control signals based on a desired output of the power conversion system. In addition, the controller imposes a constraint on the control signals to reduce the common-mode voltage. The constraint is defined by assigning an integer value to each input of the power conversion system, and requiring that the selective connection of outputs to inputs must result in a sum of integer values equal to zero. | 02-25-2010 |
20110050184 | ACTIVE RECTIFICATION FOR A VARIABLE-FREQUENCY SYNCHRONOUS GENERATOR - An active rectifier controller decouples measurements of the phase and speed of a variable frequency synchronous generator from measurements of the AC output voltage. The active rectifier controller receives position information representative of the rotor position of the VFSG independent of a load connected to the VFSG that is used to determine the phase position and speed of the VFSG. Based on measurements of the generator speed and phase, the active rectifier controller controls the active rectifier to draw AC currents in-phase with the back-electromotive force (BEMF) voltage of the VFSG. | 03-03-2011 |
20110235376 | MULTI-LEVEL PARALLEL PHASE CONVERTER - A multi-level parallel phase power converter has a power source, a converter, and an electrical node. The converter includes multiple converter modules. Each of the converter modules has multiple multi-level power converters, a poly-phase interphase inductor, and a set of poly-phase power summing connections. The summed power of each of the multiple converter modules are connected together to form a single poly-phase power converter. | 09-29-2011 |
20120139354 | No Break Power Transfer for Power Generating System - A method for no break power transfer in a variable frequency power generating system, the power generating system comprising a first bus connected to a first generator and a second bus connected to a second generator includes configuring a power transfer device to output power that is synchronized to match a voltage and a frequency of the second bus to the second bus; reconfiguring the power transfer device to output power that is synchronized to match a voltage and a frequency of the first bus to the second bus; and closing a tie switch located between the first bus and the second bus. | 06-07-2012 |
20120300350 | GRADUALLY REDUCING RESISTIVE CLAMP - A voltage spike protection system minimizes a voltage spike by connecting a resistive clamp to a power source when the voltage spike is detected. The voltage spike detection system disconnects the resistive clamp after a portion of the voltage spike is dissipated. | 11-29-2012 |
20130027848 | COOLING AND CONTROLLING ELECTRONICS - A power electronics rack includes a switching chamber provided with one or more plate heat exchangers to receive a cooling fluid. A contactor chamber has contactors for connecting switches in the switching chamber to a magnetics chamber. The magnetics chamber receives at least one of a filter, an inductor or a transformer. The magnetics chamber receives cooling fluid which directly contacts the at least one of a filter, an inductor and a transformer for cooling. A common cooling circuit delivers cooling fluid to both the switching and magnetics chambers. The contactors may be reconfigured under certain conditions. | 01-31-2013 |
20130083574 | DUAL-INPUT NINE-PHASE AUTOTRANSFORMER FOR ELECTRIC AIRCRAFT AC-DC CONVERTER - A dual-input nine-phase autotransformer converts first and second three-phase AC inputs to a nine-phase AC output. The autotransformer includes input terminals for connection to a first three-phase AC input and a second three-phase AC input smaller than the first three-phase AC input. The autotransformer includes a first plurality of coils, a second plurality, and a third plurality of coils wound on respective phase legs of the autotransformer. The autotransformer includes a plurality of output terminals for providing a plurality of AC output voltages, and a plurality of internal terminals for connecting the first, second, and third plurality of coils in a configuration that provides a 40° phase shift in the AC outputs provided by the dual-input nine-phase autotransformer. | 04-04-2013 |
20130272040 | DUAL-INPUT 18-PULSE AUTOTRANSFORMER RECTIFIER UNIT FOR AN AIRCRAFT AC-DC CONVERTER - A dual-input 18-pulse autotransformer rectifier unit for more electric aircraft AC-DC converter uses an autotransformer with a nine-phase output to condition AC power prior to DC rectifying the AC power. | 10-17-2013 |
20140218065 | DETECTING EARLY FAILURES IN PRINTED WIRING BOARDS - A method includes characterizing the effects of an electric field on a first set of printed wiring boards (PWBs) by testing the first set of PWBs to generate test data, using the test data to determine a dielectric life curve of the first set of PWBs, and based on the dielectric life curve, defining a screening time and a screening voltage to screen for premature failures in a second set of PWBs due to electric fields. | 08-07-2014 |
20140292365 | ELECTRICAL CIRCUIT TESTING - An electronics system module includes a primary electrical circuit including input connectors and output connectors and a filter circuit connected between the primary electrical circuit and ground. The module also includes a switch element connected between the primary electrical circuit and ground. The switch element is configured to be engaged by a test connector to open the switch to disconnect the primary electrical circuit from ground. The test connector includes electrical connectors configured to connect to the input connectors and the output connectors of the primary electrical circuit. The switch element is configured to automatically close based on the test connector being disengaged from the switch element | 10-02-2014 |
20140300303 | SYSTEMS AND METHODS FOR ARC DETECTING AND EXTINGUISHING IN MOTORS - A system and method for arc detecting and extinguishing in motors includes a power input interface to a power source; an output interface to a motorized load to deliver power to the motorized load; a set of sensors configured to detect an arc condition in the motorized load; a set of switches switchable to provide a low-impedance pathway parallel to the arc condition in the motorized load; and a controller, coupled to the power input interface, the output interface, the set of sensors, and the set of switches, the controller being configured to switch the set of switches to disconnect the power source, and activate the low-impedance pathway based on the detection of the arc condition, thereby preventing unintentionally generated energy in the motorized load from sustaining the arc condition. | 10-09-2014 |
20150097506 | Voltage Step-up Six-phase Autotransformer Passive Rectification AC-DC Converter - A three phase step-up autotransformer construction is discussed herein. The passive 12-pulse AC-DC converter offers simplicity, high reliability and low cost solution to AC-DC power conversion. The autotransformer is a component of the passive 12-pulse AC-DC converter. The autotransformer converts three-phase AC power into six-phase AC power. With appropriate vector design, the autotransformer may be configured to draw a near sinusoidal 12-pulse current waveform from the three-phase voltage source. The six-phase output may be configured to drive a rectifier (non-linear) load. | 04-09-2015 |
20150098161 | INTEGRATED CORONA FAULT DETECTION - A power distribution cabinet includes a housing having walls that define an interior space for housing electric components. A capacitive sensor is located on an interior surface of one or more of the walls. The capacitive sensor includes a first conductive layer located proximate to the interior surface of the wall, a second conductive layer located distal from the interior surface of the wall, and a dielectric layer located between the first and second conductive layers. First and second output terminals are connected to the first and second conductive layers of the capacitive sensor to provide an output representative of displacement current within the power distribution cabinet. | 04-09-2015 |
20150194905 | UNIVERSAL AC TO DC CONVERTER - A universal AC to DC converter may be configured to convert alternating current (AC) to direct current (DC), such as for use in aerospace applications. The disclosure relates to a single universal power electronic converter capable of converting an AC input voltage, such as a line to neutral input voltage of either 115 Vrms or 230 Vrms nominal to 28 V DC. | 07-09-2015 |