Patent application number | Description | Published |
20100237871 | Pipe Survey Method Using UWB Signal - A method of surveying the condition of an underground enclosure including the steps of (a) positioning at least one transmitter/receiver unit (including an antenna) within an underground, substantially nonconductive enclosure, such that a substantial air gap exists between the antenna and the inner wall of the enclosure; (b) transmitting an ultra wideband (UWB) signal toward at least a portion of the inner wall; and (c) processing the return signal in order to identify the interface between the soil and a region of conductivity different from the soil. | 09-23-2010 |
20120280852 | Universal Impedence Probe for Detection of Side-Connections Through Thermoplastic, Thermosetting and Cementitious Liners - A conduit survey apparatus having a carriage capable of movement axially down a conduit. The carrier includes a radio frequency (RF) signal generator and an RF signal detector positioned on the carriage along with a controller controlling the signal generator and signal detector. The carrier further includes a waveguide with an open throat transmitting signals from the signal generator and directing received signals to the signal detector. Finally, the carrier includes a waveguide positioner mounted on the carrier and adapted to selectively engage an interior wall of the conduit, wherein the waveguide guide is connected to the positioner such that the open throat of the waveguide is within about 1 inch of the interior wall when the positioner engages the interior wall. | 11-08-2012 |
20130082866 | Sensor Fusion Framework Using Multiple Sensors to Assess Buried Structures - A method of surveying the condition of an underground conduit by positioning a propelled carriage assembly within the underground conduit. The carriage assembly includes (i) at least one transmitter/receiver unit capable of transmitting a pulsed signal toward at least a portion of an inner wall of the conduit, and (ii) a secondary sensor positioned on the carriage assembly. The data derived from the pulsed signal at a given lateral location within an underground conduit is read as is a secondary sensor condition derived from secondary sensor data taken at the given lateral location. Then it is determined whether the secondary sensor condition indicates a basis for a false void detection by the data derived from the pulsed signal and if the basis for false void detection exists, providing an indication of such basis. | 04-04-2013 |
20130113646 | Pipe Survey Method Using UWB Signal - A method of surveying the condition of an underground enclosure including the steps of: (a) positioning at least one transmitter/receiver unit (including an antenna) within an underground, substantially nonconductive enclosure, such that a substantial air gap exists between the antenna and the inner wall of the enclosure; (b) transmitting an ultra wideband (UWB) signal toward at least a portion of the inner wall; and (c) processing the return signal in order to identify the interface between the soil and a region of conductivity different from the soil. | 05-09-2013 |
Patent application number | Description | Published |
20100212008 | Identification Security Elevation - Security elevation techniques are described. In an implementation, a request is received for additional security access beyond that which is currently specified for a program. An identity that describes the program is checked with a plurality of conditions. The security level is automatically elevated to grant the additional security access when the identity corresponds to one of the conditions that indicates that the security level is to be automatically elevated. | 08-19-2010 |
20160028704 | ESTABLISHING SECURE COMPUTING DEVICES FOR VIRTUALIZATION AND ADMINISTRATION - Embodiments are directed to establishing a secure connection between computing systems and to providing computer system virtualization on a secure computing device. In one scenario, a computer system receives a request that at least one specified function be initiated. The request includes user credentials and a device claim that identifies the computing device. The computer system authenticates the user using the received user credentials and determines, based on the device claim, that the computing device is an approved computing device that has been approved to initiate performance of the specified function. Then, upon determining that the user has been authenticated and that the computing device is approved to initiate performance the specified function, the computer system initiates performance of the specified function. | 01-28-2016 |
20160087963 | ESTABLISHING SECURE COMPUTING DEVICES FOR VIRTUALIZATION AND ADMINISTRATION - Embodiments are directed to establishing a secure connection between computing systems and to providing computer system virtualization on a secure computing device. In one scenario, a computer system receives a request that at least one specified function be initiated. The request includes user credentials and a device claim that identifies the computing device. The computer system authenticates the user using the received user credentials and determines, based on the device claim, that the computing device is an approved computing device that has been approved to initiate performance of the specified function. Then, upon determining that the user has been authenticated and that the computing device is approved to initiate performance the specified function, the computer system initiates performance of the specified function. | 03-24-2016 |
Patent application number | Description | Published |
20090010358 | Methods and apparatus to pre-compensate for I/Q distortion in quadrature transmitters - Methods and apparatus to pre-compensate for in-phase/quadrature (I/Q) distortion in quadrature transmitters are disclosed. A disclosed example method comprises coupling a portion of an analog baseband in-phase signal to an analog baseband quadrature signal through an impedance, and selecting a resistance value for the impedance to pre-distort the analog baseband quadrature signal to compensate for an error introduced by modulation of the analog baseband in-phase signal and the analog baseband quadrature signal. | 01-08-2009 |
20130156131 | METHOD AND APPARATUS FOR CORRECTING SIGNAL DEPENDENT DUTY CYCLE ERRORS IN AMPLITUDE SHIFT KEYING RECEIVERS - An apparatus for demodulating an Amplitude Shift Keying (ASK) encoded signal is provided. The apparatus comprises a peak detector, a first comparator, a threshold generator, a delay circuit, and a second comparator. The peak detector is configured to detect a peak voltage, and the first comparator is coupled to the peak detector and receives a first threshold voltage. The threshold generator is coupled to the peak detector and is configured to generate a second threshold voltage that is proportional to peak voltage. The delay circuit is coupled to the first comparator, and the second comparator is coupled to the delay circuit and that is coupled to the threshold generator so as to receive the second threshold voltage. | 06-20-2013 |
20150041190 | HIGH VOLTAGE POLYMER DIELECTRIC CAPACITOR ISOLATION DEVICE - An electronic isolation device is formed on a monolithic substrate and includes a plurality of passive isolation components. The isolation components are formed in three metal levels. The first metal level is separated from the monolithic substrate by an inorganic PMD layer. The second metal level is separated from the first metal level by a layer of silicon dioxide. The third metal level is separated from the second metal level by at least 20 microns of polyimide or PBO. The isolation components include bondpads on the third metal level for connections to other devices. A dielectric layer is formed over the third metal level, exposing the bondpads. The isolation device contains no transistors. | 02-12-2015 |
20150044848 | HIGH VOLTAGE HYBRID POLYMERIC-CERAMIC DIELECTRIC CAPACITOR - An integrated circuit includes isolation capacitors which include a silicon dioxide dielectric layer and a polymer dielectric layer over the layer of silicon dioxide. The silicon dioxide dielectric layer and the polymer dielectric layer extend across the integrated circuit. Top plates of the isolation capacitors have bond pads for wire bonds or bump bonds. Bottom plates of the isolation capacitors are connected to components of the integrated circuit. Other bond pads are connected to components in the integrated circuit through vias through the silicon dioxide dielectric layer and the polymer dielectric layer. | 02-12-2015 |
20150181706 | HIGH VOLTAGE POLYMER DIELECTRIC CAPACITOR ISOLATION DEVICE - An electronic isolation device is formed on a monolithic substrate and includes a plurality of passive isolation components. The isolation components are formed in three metal levels. The first metal level is separated from the monolithic substrate by an inorganic PMD layer. The second metal level is separated from the first metal level by a layer of silicon dioxide. The third metal level is separated from the second metal level by at least 20 microns of polyimide or PBO. The isolation components include bondpads on the third metal level for connections to other devices. A dielectric layer is formed over the third metal level, exposing the bondpads. The isolation device contains no transistors. | 06-25-2015 |
Patent application number | Description | Published |
20130168893 | CHARGING OF FILTER MEDIA - Methods and systems for charging fiber webs, including those suitable for use as filter media, are provided. In some embodiments, the methods provided herein involve charging a fiber web by passing a substance through the web under suitable conditions to produce a charged article. The substance may be, for example, a substantially non-polar liquid or gas, a compressed fluid, and/or a supercritical fluid (e.g., carbon dioxide). In some embodiments, the method of charging includes releasing the substance from a container, passing the substance through the fiber web, and, optionally, drawing the substance into a vacuum apparatus after it passes through the fiber web. | 07-04-2013 |
20150053627 | FILTER MEDIA HAVING AN OPTIMIZED GRADIENT - Filter media having a gradient in a property and methods associated with such media are provided. In some embodiments, a filter media may have a gradient in mean pore size. The gradient in mean pore size may be across at least a portion of the thickness of the filter media. In some embodiments, the gradient can be represented by an exponential function. The exponential gradient in mean pore size may impart desirable properties to the filter media including enhanced filtration properties (e.g., relatively high dust holding capacity and efficiency), amongst other benefits. The filter media may be particularly well-suited for applications that involve filtering liquids (e.g., hydraulics, fuel, lube, water), though the media may also be used in other applications. | 02-26-2015 |
20150157969 | FINE GLASS FILTER MEDIA - Filter media suitable for various applications and related components, systems, and methods associated therewith are described. The filter media may include a composite filter media structure having a substrate and at least one fine fiber layer. The fine fiber layer may include a plurality of glass fibers having an average fiber diameter of less than 2 microns; or, at least 70% by weight of the glass fibers within the fine fiber layer has a fiber diameter of less than 2 microns. The fine fiber layer may further include a fluorochemical composition, an organosilicon composition and may optionally include a binder composition that comprises less than 2% by weight of the fine fiber layer. The filter media may exhibit both a relatively high gamma and favorable mechanical properties. The filter media may be produced by forming a substrate on the surface of a wire in a wet laid process, and forming a fine fiber layer on the substrate while the substrate is on the wire. | 06-11-2015 |