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2429 results about "Order of magnitude" patented technology
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An order of magnitude is an approximate measure of the number of digits that a number has in the commonly-used base-ten number system. It is equal to the whole number floor of logarithm (base 10). For example, the order of magnitude of 1500 is 3, because 1500 = 1.5 × 10³.
Electrosurgical jaw structure for controlled energy delivery
InactiveUS6929644B2Prevent any substantial dehydrationEnergy efficiencySurgical instruments for heatingCoatingsThermal energyConductive materials
A working end of a surgical instrument that carries first and second jaws for delivering energy to tissue. In a preferred embodiment, at least one jaw of the working end defines a tissue-engagement plane that contacts the targeted tissue. The cross-section of the engagement plane reveals that it defines a surface conductive portion that overlies a variably resistive matrix of a temperature-sensitive resistive material or a pressure-sensitive resistive material. An interior of the jaw carries a conductive material or electrode that is coupled to an Rf source and controller. In an exemplary embodiment, the variably resistive matrix can comprise a positive temperature coefficient (PTC) material, such as a ceramic, that is engineered to exhibit a dramatically increasing resistance (i.e., several orders of magnitude) above a specific temperature of the material. In use, the engagement plane will apply active Rf energy to captured tissue until the point in time that the variably resistive matrix is heated to its selected switching range. Thereafter, current flow from the conductive electrode through the engagement surface will be terminated due to the exponential increase in the resistance of variably resistive matrix to provide instant and automatic reduction of Rf energy application. Further, the variably resistive matrix can effectively function as a resistive electrode to thereafter conduct thermal energy to the engaged tissue volume. Thus, the jaw structure can automatically modulate the application of energy to tissue between active Rf heating and passive conductive heating of captured tissue to maintain a target temperature level.
Owner:ETHICON ENDO SURGERY INC
High-melting polyolefin copolymer elastomers, catalysts and methods of synthesis
InactiveUS6169151B1Property is limitedOrganic-compounds/hydrides/coordination-complexes catalystsElastomerPolymer science
This invention relates to high melting polyolefin copolymers suitable as thermoplastic elastomers and catalysts and methods for their synthesis. These elastomeric olefin copolymers are characterized by a mole fraction of crystallizable component Xc from about 30 to about 99%; low glass transition temperatures, below -20° C., and typically below -50° C.; melting points above about 90° C.; high molecular weights; a molecular weight distribution MW / Mn< / =10; and a narrow composition distribution between chains of < / =15%. The novel copolymers of the invention range from reactor blends to multiblock copolymers that can be sequentially fractionated into fractions of differing crystallinities, which fractions nevertheless show compositions of comonomers which differ by less than 15% from the parent polymer (reactor product). The invention also relates to a process for producing such copolymers by utilizing an unbridged, substituted or unsubstituted cyclopentadienyl metallocene catalyst that is capable of interconverting between states with different copolymerization characteristics, which interconversion is controlled by selecting the substituents of the cyclopentadienyl ligands so that the rate of interconversion of the two states is within several orders of magnitude of the rate of formation of a single polymer chain. Where ri>rf the polymer can be characterized as multiblock; where ri<rf, the result is a polymer blend and where ri / rf is close to 1, the resulting polymer is a mixture of blend and multiblock. The metallocene catalysts of the invention are able to interconvert between more than two states, with embodiments of four states being shown in FIG. 2.
Owner:THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIV
Multifocal imaging systems and method
InactiveUS20070057211A1Fast imagingEfficient collectionMaterial analysis by optical meansColor television detailsLow noiseGrating
In the systems and methods of the present invention a multifocal multiphoton imaging system has a signal to noise ratio (SNR) that is reduced by over an order of magnitude at imaging depth equal to twice the mean free path scattering length of the specimen. An MMM system based on an area detector such as a multianode photomultiplier tube (MAPMT) that is optimized for high-speed tissue imaging. The specimen is raster-scanned with an array of excitation light beams. The emission photons from the array of excitation foci are collected simultaneously by a MAPMT and the signals from each anode are detected using high sensitivity, low noise single photon counting circuits. An image is formed by the temporal encoding of the integrated signal with a raster scanning pattern. A deconvolution procedure taking account of the spatial distribution and the raster temporal encoding of collected photons can be used to improve decay coefficient. We demonstrate MAPMT-based MMM can provide significantly better contrast than CCD-based existing systems.
Owner:MASSACHUSETTS INST OF TECH
Method and apparatus for high-performance compact volumetric antenna with pattern control
InactiveUS20150102972A1Increase intrinsic inductive reactanceOptimize the magnetic fieldAntenna feed intermediatesElectronPhysics
A wide-bandwidth antenna with antenna pattern control includes a radiator and a feed. The radiator includes two or more volumetric radiating elements. The feed includes two or more feed units, the feed units configured to provide wave signals to the volumetric radiating elements. The feed units provide an independent signal for each radiating element. The wave signals can be fed out of phase to each other. Depending on the dielectric filler inside the volume of the antenna and the phase shift between feeds, the pattern can be modified electronically leading to pattern control. The radiating elements are spaced at a distance at least one order of magnitude smaller than half of an operational wavelength of the antenna. At least one electrically conductive element of the antenna is capable of conducting a current that generates a magnetic field. The magnetic field lowers the total reactance of the antenna, thereby resulting in enhanced performance of the antenna in terms of bandwidth, gain, and pattern control. The volumetric design allows miniaturization of the antenna.
Owner:SCIRE SCAPPUZZO FRANCESCA
Smooth thin film layers produced by low temperature hydrogen ion cut
A method for producing wafer splitting from ion implantation into silicon after low temperature direct bonding with surface roughness that is ˜1 nm (RMS). This result is an order of magnitude smoother than the previous work (˜10 nm RMS). The key improvement in this work is the use of a low temperature bond resulting in a strong bond before the material is cut. The smooth as-split surfaces produced using a low temperature bond are very important for creation of very thin (<50 nm) silicon-on-insulator (SOI), three-dimensional bonded structures and nanostructures that are split after processing.
Owner:EPIR TECH INC
Microfluidic rotary flow reactor matrix
InactiveUS20050037471A1Economy of scale in reagent consumptionMinimizing pipetting stepBioreactor/fermenter combinationsHeating or cooling apparatusEngineeringMedical diagnosis
A microfluidic device comprises a matrix of rotary flow reactors. The microfluidic matrix device offers a solution to the “world-to-chip” interface problem by accomplishing two important goals simultaneously: an economy of scale in reagent consumption is achieved, while simultaneously minimizing pipetting steps. N2 independent assays can be performed with only 2N+1 pipetting steps, using a single aliquot of enzyme amortized over all reactors. The chip reduces labor relative to conventional fluid handling techniques by using an order of magnitude less pipetting steps, and reduces cost by consuming two to three orders of magnitude less reagents per reaction. A PCR format has immediate applications in medical diagnosis and gene testing. Beyond PCR, the microfluidic matrix chip provides a universal and flexible platform for biological and chemical assays requiring parsimonious use of precious reagents and highly automated processing.
Owner:CALIFORNIA INST OF TECH
Wrapper induction by hierarchical data analysis
InactiveUS6606625B1Easy to useAccurate extractionData processing applicationsWeb data indexingInductive algorithmDocumentation
An inductive algorithm, denominated STALKER, generating high accuracy extraction rules based on user-labeled training examples. With the tremendous amount of information that becomes available on the Web on a daily basis, the ability to quickly develop information agents has become a crucial problem. A vital component of any Web-based information agent is a set of wrappers that can extract the relevant data from semistructured information sources. The novel approach to wrapped induction provided herein is based on the idea of hierarchical information extraction, which turns the hard problem of extracting data from an arbitrarily complex document into a series of easier extraction tasks. Labeling the training data represents the major bottleneck in using wrapper induction techniques, and experimental results show that STALKER performs significantly better than other approaches; on one hand, STALKER requires up to two orders of magnitude fewer examples than other algorithms, while on the other hand it can handle information sources that could not be wrapped by prior techniques. STALKER uses an embedded catalog formalism to parse the information source and render a predictable structure from which information may be extracted or by which such information extraction may be facilitated and made easier.
Owner:UNIV OF SOUTHERN CALIFORNIA +1
Methods and reagents for the rapid and efficient isolation of circulating cancer cells
InactiveUS7332288B2Efficient ConcentrationEasy to detectNanomagnetismMicrobiological testing/measurementCirculating cancer cellCell sensitivity
A highly sensitive assay is disclosed which combines immunomagnetic enrichment with multiparameter flow cytometric and immunocytochemical analysis to detect, enumerate and characterize carcinoma cells in the blood. The assay can detect one epithelial cell or less in 1 ml of blood and has a greater sensitivity than conventional PCR or immunohistochemistry by 1-2 orders of magnitude. In addition, the assay facilitates the biological characterization and staging of carcinoma cells.
Owner:MENARINI SILICON BIOSYSTEMS SPA
Method of plasmon-enhanced properties of materials and applications thereof
InactiveUS20050164169A1Bioreactor/fermenter combinationsMaterial nanotechnologyInfraredThermochromism
Methods and applications of surface plasmon resonance-enhanced antibacterial, anti-adhere, adhere, catalytic, hydrophilic, hydrophobic, spectral change, biological and chemical decomposition properties of materials with embedded nanoparticles are disclosed. A method of the nonlinear generation of surface plasmon resonance enables the use of light with wavelengths from X-Ray to IR to enhance properties of materials by several orders of magnitude. The nanoparticle size is crucial for the enhancement and their size is considered to be in the proposed methods and applications within a range of 0.1 nm to 200,000 nm. The nanoparticles preferably are made of noble metals and / or semiconductor oxides. The invention describes a very broad spectrum of applications of surface plasmon resonance-enhanced properties of materials with embedded nanoparticles, from environmental cleanup by road pavement and construction materials, self-cleaning processes of surface materials, thermochromic effects on heat blocking materials, corrosion preventing paint, to sanitization by antibacterial textile fabrics, filters, personal clothing, contact lenses and medical devices.
Owner:SPR ADVANCED TECH INC
Bipolar reading technique for a memory cell having an electrically floating body transistor
A technique of sampling, sensing, reading and / or determining the data state of a memory cell of a memory cell array (for example, a memory cell array having a plurality of memory cells which consist of an electrically floating body transistor). In one embodiment, the present inventions are directed to a memory cell, having an electrically floating body transistor, and / or a technique of reading the data state in such a memory cell. In this regard, the present inventions employ the intrinsic bipolar transistor current to read and / or determine the data state of the electrically floating body memory cell (for example, whether the electrically floating body memory cell is programmed in a State “0” and State “1”). During the read operation, the data state is determined primarily by or sensed substantially using the bipolar current responsive to the read control signals and significantly less by the interface channel current component, which is negligible relatively to the bipolar component. The bipolar transistor current may be very sensitive to the floating body potential due to the high gain of the intrinsic bipolar transistor. As such, the programming window obtainable with the bipolar reading technique may be considerably higher (for example, up two orders of magnitude higher) than the programming window employing a conventional reading technique (which is based primarily on the interface channel current component.
Owner:MICRON TECH INC
High-melting polyolefin copolymer elastomers, catalysts and methods of synthesis
InactiveUS6518378B2Property is limitedOrganic-compounds/hydrides/coordination-complexes catalystsCatalyst activation/preparationElastomerPolyolefin
Owner:BP AMOCO CORP +1
Efficient storage and retrieval for large number of data objects
ActiveUS20120246129A1Efficiently and promptly serveReduce in quantityDigital data processing detailsStill image data indexingAuxiliary memoryFile server
A data object management scheme for storing a large plurality of small data objects (e.g., image files) in small number of large object stack file for storage in secondary storage (e.g., hard disks). By storing many individual data objects in a single object stack file, the number of files stored in the secondary storage is reduced by several orders of magnitude, from the billions or millions to the hundreds or so. Index data for each object stack file is generated and stored in primary storage to allow efficient and prompt access to the data objects. Requests to store or retrieve the data objects are made using HTTP messages including file identifiers that identify the files storing the data objects and keys identifying the data objects. A file server stores or retrieves the data object from secondary storage of a file server without converting the requests to NSF or POSIX commands.
Owner:META PLATFORMS INC
Composite materials comprising polar polymers and single-wall carbon nanotubes
InactiveUS6936653B2Improve conductivityMaterial nanotechnologyIndividual molecule manipulationPolyesterPolymer science
The invention relates to a composite comprising a weight fraction of single-wall carbon nanotubes and at least one polar polymer wherein the composite has an electrical and / or thermal conductivity enhanced over that of the polymer alone. The invention also comprises a method for making this polymer composition. The present application provides composite compositions that, over a wide range of single-wall carbon nanotube loading, have electrical conductivities exceeding those known in the art by more than one order of magnitude. The electrical conductivity enhancement depends on the weight fraction (F) of the single-wall carbon nanotubes in the composite. The electrical conductivity of the composite of this invention is at least 5 Siemens per centimeter (S / cm) at (F) of 0.5 (i.e. where single-wall carbon nanotube loading weight represents half of the total composite weight), at least 1 S / cm at a F of 0.1, at least 1×10−4 S / cm at (F) of 0.004, at least 6×10−9 S / cm at (F) of 0.001 and at least 3×10−16 S / cm (F) plus the intrinsic conductivity of the polymer matrix material at of 0.0001. The thermal conductivity enhancement is in excess of 1 Watt / m-° K. The polar polymer can be polycarbonate, poly(acrylic acid), poly(acrylic acid), poly(methacrylic acid), polyoxide, polysulfide, polysulfone, polyamides, polyester, polyurethane, polyimide, poly(vinyl acetate), poly(vinyl alcohol), poly(vinyl chloride), poly(vinyl pyridine), poly(vinyl pyrrolidone), copolymers thereof and combinations thereof. The composite can further comprise a nonpolar polymer, such as, a polyolefin polymer, polyethylene, polypropylene, polybutene, polyisobutene, polyisoprene, polystyrene, copolymers thereof and combinations thereof.
Owner:SAMSUNG ELECTRONICS CO LTD
Kernel-based fast aerial image computation for a large scale design of integrated circuit patterns
InactiveUS6223139B1Advantageously producedComputationally efficientPump componentsBlade accessoriesFeature vectorDecomposition
A method of simulating aerial images of large mask areas obtained during the exposure step of a photo-lithographic process when fabricating a semiconductor integrated circuit silicon wafer is described. The method includes the steps of defining mask patterns to be projected by the exposure system to create images of the mask patterns; determining an appropriate sampling range and sampling interval; generating a characteristic matrix describing the exposure system; inverting the matrix to obtain eigenvalues as well as the eigenvectors (or kernels) representing the decomposition of the exposure system; convolving the mask patterns with these eigenvectors; and weighing the resulting convolution by the eigenvalues to form the aerial images. The method is characterized in that the characteristic matrix is precisely defined by the sampling range and the sampling interval, such that the sampling range is the shortest possible and the sampling interval, the largest possible, without sacrificing accuracy. The method of generating aerial images of patterns having large mask areas provides a speed improvement of several orders of magnitude over conventional approaches.
Owner:IBM CORP
Method of Customizing 3D Computer-Generated Scenes
InactiveUS20090021513A1Low costRapid production3D-image renderingComputer graphics (images)The Internet
An automated method of rapidly producing customized 3D graphics images in which various user images and video are merged into 3D computer graphics scenes, producing hybrid images that appear to have been created by a computationally intensive 3D rendering process, but which in fact have been created by a much less computationally intensive series of 2D image operations. To do this, a 3D graphics computer model is rendered into a 3D graphics image using a customized renderer designed to automatically report on some of the renderer's intermediate rendering operations, and store this intermediate data in the form of metafilm. User images and video may then be automatically combined with the metafilm, producing a 3D rendered quality final image with orders of magnitude fewer computing operations. The process can be used to inexpensively introduce user content into sophisticated images and videos suitable for many internet, advertising, cell phone, and other applications.
Owner:PIXBLITZ STUDIOS
Directional sensors for head-mounted contact microphones
InactiveUS20030059078A1Smooth connectionGuaranteed normal transmissionBone conduction transducer hearing devicesSupra/circum aural earpiecesSignal-to-noise ratio (imaging)Voice communication
Directional piezoelectric devices and methods for their manufacture are provided that improve the quality of piezoelectric device mediated signal detection and provide new thermal imaging devices. The devices can provide over an order of magnitude improved signal to noise ratio compared with previously known devices. The devices may be used along with new head mounted acoustic technologies for improved voice communication systems in inherently noisy environments. The head mounted technologies utilize microphones that are activated by pressure wherein the applied trigger pressure further serves to improve efficiency of the microphones. Also provided are head pieces that include both microphones and speakers that are particularly useful for harsh environments such as those encountered by fire fighters. The head pieces are capable of further functions related to contact with the head of the user, such as reporting physiological variables of the user, along with oral communications.
Owner:DOWNS EDWARD F JR +1
Method and system for high energy, low radiation power X-ray imaging of the contents of a target
ActiveUS7453987B1Affordable enhanced detectionReduce system costX-ray apparatusMaterial analysis by transmitting radiationSoft x rayHigh energy
The systems and methods described herein automatically detect, highlight and identify high-Z materials in volume concentrations of approximately 100 cm3 or greater utilizing single and / or dual energy sources with x-ray and neutron detectors. The methods and systems described herein are applied to the imaging of containerized cargo and cargo vehicles. Pursuant to the described systems and methods, radiation powers are orders of magnitude lower than those used in the conventional systems. By reducing the radiation power by a factor of, for example, 100 or more, the shielding requirements for the system are greatly reduced, alignment requirements can be significantly relaxed and system components can be lighter weight and more modular. Consequently, system costs are reduced.
Owner:LEIDOS
Reverse-time depth migration with reduced memory requirements
InactiveUS20100054082A1Accurate source wave modelingEnhance computer storageSeismic signal processingReverse timeMass storage
A method of prestack reverse-time migration of seismic data that yields significant gains in computer storage and memory bandwidth efficiency is disclosed. The values only of the source wave incident on the boundaries of a simulation domain are saved, rather than all of the values of the wavefield throughout the entire simulation domain. This data allows an accurate and robust approximation of the forward propagated source wave for all finite-difference approximation orders of the acoustic wave equation. The method reduces the amount of data storage required by an order of magnitude and overcomes the present challenge of requiring special large memory hardware while allowing for the implementation of 3D prestack reverse-time migration on off-the-shelf platforms.
Owner:ACCELEWARE CORP
HVDC device for converting between alternating voltages and direct current voltages
InactiveUS6480403B1Ability to hold high voltageEasy to controlConversion with intermediate conversion to dcDc-dc conversionFundamental frequencyPhase lead
A device for converting alternating voltage to direct voltage and, conversely, direct voltage into alternating voltage. A series connection between the poles of a direct voltage side has at least four units each having a semiconductor element of turn-off type and a first diode connected in anti-parallel therewith. A first midpoint of the series connection is connected to an alternating voltage phase line and forms a phase output. Second midpoints of the series connection are connected to a midpoint of the direct voltage side through such units. An apparatus is adapted to control the semiconductor elements with a pulse width modulation frequency of at least one order of magnitude higher than the fundamental frequency of the alternating voltage of the phase line and the rest of the semiconductor elements with a frequency substantially lower and within or close to the frequency range of one or a couple of times of the fundamental frequency.
Owner:ABB (SCHWEIZ) AG
Multiple indium implant methods and devices and integrated circuits therefrom
An integrated circuit (IC) includes at least one NMOS transistor, wherein the NMOS transistor includes a substrate having a semiconductor surface, and a gate stack formed in or on the surface including a gate electrode on a gate dielectric, wherein a channel region is located in the semiconductor surface below the gate dielectric. A source and a drain region are on opposing sides of the gate stack. An In region having a retrograde profile is under at least a portion of the channel region. The retrograde profile includes (i) a surface In concentration at a semiconductor surface interface with the gate dielectric of less than 5×1016 cm−3, (ii) a peak In concentration at least 20 nm from the semiconductor surface below the gate dielectric, and wherein (iii) the peak In concentration is at least two (2) orders of magnitude higher than the In concentration at the semiconductor surface interface. A method to form an IC including at least one NMOS transistor includes implanting a first In implant at a first energy and a second In implant at a second energy, wherein the first In implant together with the second In implant form an In region having a retrograde profile under at least a portion of the channel region, and wherein the second energy is at least 5 keV more than the first energy.
Owner:TEXAS INSTR INC
Methods for nanoscale structures from optical lithography and subsequent lateral growth
InactiveUS20070029643A1Reduce defect densityReduce dislocationMaterial nanotechnologyDecorative surface effectsLithographic artistPhotonics
Methods, and structures formed thereby, are disclosed for forming laterally grown structures with nanoscale dimensions from nanoscale arrays which can be patterned from nanoscale lithography. The structures and methods disclosed herein have applications with electronic, photonic, molecular electronic, spintronic, microfluidic or nano-mechanical (NEMS) technologies. The spacing between laterally grown structures can be a nanoscale measurement, for example with a spacing distance which can be approximately 1-50 nm, and more particularly can be from approximately 3-5 nm. This spacing is appropriate for integration of molecular electronic devices. The pitch between posts can be less than the average distance characteristic between dislocation defects for example in GaN (ρ=1010 / cm2→d=0.1 μm) resulting an overall reduction in defect density. Large-scale integration of nanoscale devices can be achieved using lithographic equipment that is orders of magnitude less expensive that that used for advanced lithographic techniques, such as electron beam lithography.
Owner:NORTH CAROLINA STATE UNIV
Method and structure for controlling plasma uniformity
InactiveUS6110395AMinimal effectIncrease inertiaDecorative surface effectsVacuum evaporation coatingElectron temperatureHeat flux
The present invention relates to a method and structure for controlling plasma uniformity in plasma processing applications. Electron thermal conductivity parallel and perpendicular to magnetic field lines differs by orders of magnitude for low magnetic fields (on the order of 10 gauss). This property allows the directing of heat flux by controlling the magnetic field configuration independent of ions since the effect of modest magnetic fields upon the transport of ions themselves is minimal. Heat is preferentially conducted along magnetic field lines with electron temperatures on the order of 0.1 to 1 eV / cm being sufficient to drive kilowatt-level heat fluxes across areas typical of plasma processing source dimensions.
Owner:SPTS TECH LTD
Method and spectral/imaging device for optochemical sensing with plasmon-modified polarization
InactiveUS20050186565A1Low fluorescence quantum yieldHigh sensitivityBioreactor/fermenter combinationsBiological substance pretreatmentsFiberFluorescence
The invention discloses a method and spectral-imaging device for optochemical sensing with plasmon-modified multiband fluorescence polarization and with plasmon-modified polarization phase shift changes of a light beam reflected and / or passed through a total internal reflection conducting structure. The optochemical sensing is performed for molecules placed nearby the conducting structure and being excited by surface plasmon resonance (SPR) to lower excited state (LES) and / or to higher excited states (HES). The invention also describes the spectral imaging device with an improved sensitivity of several orders of magnitude. The disclosed method and imaging device may find applications in clinical diagnostics, pharmaceutical screening, biomedical research, biochemical-warfare detection and other diagnostic techniques. The device can be used in bio-chip and micro-array technologies, flowcytometer, fiber optic and other types of diagnostic devices.
Owner:AMERICAN ENVIRONMENTAL SYST
Multiple-photon excitation light sheet illumination microscope
ActiveUS20110122488A1Radiation pyrometrySpectrum investigationDiagnostic Radiology ModalityFluorescence
An apparatus for and method of performing multi-photon light sheet microscopy (MP-LISH), combining multi-photon excited fluorescence with the orthogonal. illumination of light sheet microscopy are provided. With live imaging of whole Drosophila and zebrafish embryos, the high performance of MP-LISH compared to current state-of-the-art imaging techniques in maintaining good signal and high spatial resolution deep inside biological tissues (two times deeper than one-photon light sheet microscopy), in acquisition speed (more than one order of magnitude faster than conventional two-photon laser scanning microscopy), and in low phototoxicity are demonstrated. The inherent multi-modality of this new imaging technique is also demonstrated second harmonic generation light sheet microscopy to detect collagen in mouse tail tissue. Together, these properties create the potential for a wide range of applications for MP-LISH in 4D imaging of live biological systems.
Owner:CALIFORNIA INST OF TECH
Technical implementation method for application development through electronic form
InactiveCN102063306ARapid Visual DevelopmentReduce the amount of developmentSpecific program execution arrangementsOperational systemElectronic form
The invention discloses a technical implementation method for application development through an electronic form. The electronic form technique integrates data acquisition and presentation functions into a whole; an electronic form system is divided into an interface representation layer, a service logic layer and a data exchange layer; and the electronic form technique reduces the development programming codes by over 90 percent in comparison with the traditional development mode, the development efficiency is improved by one order of magnitude in comparison with the traditional mode, the configured design concept and the development mode are improved, the agility of a service system is greatly promoted, data sharing and application integration are realized by adopting service-oriented architecture (SOA) loose coupling application integration technology, different bottom-layer operating systems and databases can be spanned, and the application system has good compatibility and mobility.
Owner:夏春秋
Stealth packet switching
InactiveUS20050094640A1Low probability of interceptReduce probabilityTime-division multiplexData switching by path configurationHidden dataNetwork architecture
Systems, methods, devices, and network architectures are disclosed for creating and implementing secure wireless, wired, and / or optical stealth-enabled networks using specially modified packets, cells, frames, and / or other “stealth” information structures. This enables stealth packets to have a low probability of detection, a low probability of interception, and a low probability of interpretation. Stealth packets are only detected, intercepted, and correctly interpreted by stealth-enabled network equipment. In its simplest form, stealth packet switching modifies the packet structure, protocols, timing, synchronization, and other elements through various rule-violations. This creates stealth packets, which normal equipment cannot receive correctly, and hence normal equipment discards the stealth packets. Stealth packets may be further enhanced with encryption techniques which focus on encrypting the packet structure itself, as opposed to merely encrypting the data. Using encryption to modify the packet structure itself adds an entirely new level of encryption complexity, thus making the stealth communications orders of magnitude more difficult to decrypt than standard decryption techniques. Combining stealth packets with time-based reservation packet switching enables total encryption of the packet (including header and preamble encryption) capable of routing through multiple hops without decryption of headers and preamble at each hop. Time-based reservation packet switching can also guarantee real-time stealth packet delivery through a network that is totally congested from data storms, virus caused congestion, and / or denial of service attacks.
Owner:HOWE WAYNE RICHARD
Cognizant engines: systems and methods for enabling program observability and controlability at instruction level granularity
ActiveUS20100107252A1Improve performanceEfficient powerMemory loss protectionError detection/correctionGranularityControllability
The present invention is directed to system for and methods of real time observing, monitoring, and detecting anomalies in programs' behavior at instruction level. The hardware assist design in this invention provides fine grained observability, and controllability. Fine grained observability provides unprecedented opportunity for detecting anomaly. Controllability provides a powerful tool for stopping anomaly, repairing the kernel and restoring the state of processing. The performance improvement over pure software approach is estimated to be many orders of magnitudes. This invention is also effective and efficient in detecting mutating computer viruses, where normal, signature based, virus detection is under performing.
Owner:MERTOGUNO SUKAMO
Fabrication of high efficiency, high quality, large area diffractive waveplates and arrays
InactiveUS20110262844A1Quality improvementLow costPhotomechanical exposure apparatusHologram recording materialOptical polarizationImage quality
The objective of the present invention is providing a method for fabricating high quality diffractive waveplates and their arrays that exhibit high diffraction efficiency over large area, the method being capable of inexpensive large volume production. The method uses a polarization converter for converting the polarization of generally non-monochromatic and partially coherent input light beam into a pattern of periodic spatial modulation at the output of said polarization converter. A substrate carrying a photoalignment layer is exposed to said polarization modulation pattern and is coated subsequently with a liquid crystalline material. The high quality diffractive waveplates of the present invention are obtained when the exposure time of said photoalignment layer exceeds by generally an order of magnitude the time period that would be sufficient for producing homogeneous orientation of liquid crystalline materials brought in contact with said photoalignment layer. Compared to holographic techniques, the method is robust with respect to mechanical noises, ambient conditions, and allows inexpensive production via printing while also allowing to double the spatial frequency of optical axis modulation of diffractive waveplates.
Owner:BEAM ENG FOR ADVANCED MEASUREMENTS
Apparatus and method for high-frequency operation in a battery charger
InactiveUS6838856B2Reduce weight and sizeHigh operating requirementsBatteries circuit arrangementsAc-dc conversion without reversalTransformerAC power
A battery charger includes line-level input rectification, a high-frequency oscillator-controlled chopper circuit, multiple transformers operating in parallel, and controlled output rectification. Use of line-level input rectification reorders the elements of the battery charger compared to previous designs. A chopper frequency several orders of magnitude higher than that of the AC power mains is used. The use of multiple, parallel-wired transformers for voltage and current transformation eases constraints on the physical geometry of a manufactured battery charger product by permitting individual transformers, each smaller than a comparable single transformer, to be employed. Controlled output rectifiers permit power levels to be regulated dynamically.
Owner:SPX CORP
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