Patent application number | Description | Published |
20100015447 | MICROPHASIC MICRO-COMPONENTS AND METHODS FOR CONTROLLING MORPHOLOGY VIA ELECTRIFIED JETTING - The disclosure provides methods for preparation of multiphasic micro-components, such as core-shell or anisotropic (e.g., Janus) multiphasic particles with well-defined structures using electrohydrodynamic co-jetting of two polymer solutions containing polyelectrolytes. Suitable polyelectrolytes include polyacrylic acid (PAA), poly(acrylamide acrylic acid (PAAm), and/or poly(acryl amide-co-acrylic acid) (PAAm-AA), sodium polystyrene sulfonate (PSS), polyethylene imine (PEI), polypeptides, copolymers, and combinations of these. Control of certain variables, such as relative conductivities of the two jetting solutions, controls the particle morphologies formed, leading to a predetermined phase orientation for the same polymer system. In certain aspects, after cross-linking, core-shell particles are stable in aqueous solutions and exhibit reproducible swelling behavior, while maintaining the original core-shell geometry. In addition, micro-components formed in accordance with the present teachings are pH-responsive based on external environmental pH. Thus, such micro-components are useful for a variety of different applications, including micro- and nano-active ingredient delivery systems. | 01-21-2010 |
Patent application number | Description | Published |
20100236410 | LAYERED FILTRATION MEMBRANE AND METHODS OF MAKING SAME - A layered filter membrane with improved anti-clogging characteristics is provided. In one embodiment, a filter membrane includes multiple polymer layers, each with different pore diameters formed by stretching the polymer layers. Furthermore, the multiple filter layers are coupled together before being stretched and the different pore sizes are formed during co-stretching of the filter layers. | 09-23-2010 |
20110104472 | POROUS MEMBRANE - A membrane comprises a sheet of expanded polytetrafluoroethylene. The sheet includes a first extrudate made from a first PTFE fine powder resin mixed with processing lubricant at a first lube rate. A second extrudate is made from the first PTFE fine powder resin mixed with processing lubricant at the first lube rate. The first and second extrudates combined into an integrated tape structure that is stretched in first and second directions. The sheet is porous and has a gas permeability of at least 0.1 CFM according to ASTM D737. The sheet has an average Mullen Hydrostatic Burst pressure in the range of 135 psi to 175 psi according to ASTM D751. | 05-05-2011 |
20110151118 | TREATMENT SYSTEM USING A FLUID CAPABLE OF PHASE CHANGE - An apparatus and a system and method for treating a material are provided. The apparatus includes a vessel that includes a perforated core disposed within the vessel and a dip tube disposed within the core. The dip tube is in fluid communication with the treatment vessel at a first port and has at least one opening that is located within a non-perforated region of the perforated core and distal from the first port. The system includes a vessel that includes a perforated core disposed within the vessel and a dip tube disposed within the core. The dip tube is in fluid communication with the treatment vessel at a first port and has at least one opening that is located within a non-perforated region of the perforated core and distal from the first port. The system also includes at least one solution supply that comprises a solvent capable of changing phase in response to a change in temperature and/or pressure. | 06-23-2011 |
20140232033 | Porous Membrane - A membrane comprises a sheet of expanded polytetrafluoroethylene. The sheet includes a first extrudate made from a first PTFE fine powder resin mixed with processing lubricant at a first lube rate. A second extrudate is made from the first PTFE fine powder resin mixed with processing lubricant at the first lube rate. The first and second extrudates combined into an integrated tape structure that is stretched in first and second directions. The sheet is porous and has a gas permeability of at least 0.1 CFM according to ASTM D737. The sheet has an average Mullen Hydrostatic Burst pressure in the range of 135 psi to 175 psi according to ASTM D751. | 08-21-2014 |
Patent application number | Description | Published |
20100219449 | METHOD AND APPARATUS FOR HETEROJUNCTION BARRIER DIODE DETECTOR FOR ULTRAHIGH SENSITIVITY - The disclosure relates to a zero-bias heterojunction diode detector with varying impedance. The detector includes a substrate supporting a Schottky structure and an Ohmic contact layer. A metallic contact layer is formed over the Ohmic layer. The Schottky structure comprises a plurality of barrier layers and each of the plurality of barriers layers includes a first material and a second material. In one embodiment, the composition percentage of the second material in each of the barrier layers increases among the plurality of barrier layers from the substrate to the metal layer in order to provide a graded periodicity for the Schottky structure. | 09-02-2010 |
20130119400 | SELF-ALIGNED SIDEWALL GATE GaN HEMT - A method of fabricating a GaN HEMT includes growing a first epitaxial layer on a substrate, growing a second epitaxial layer on the first epitaxial layer, growing a third epitaxial layer on the second epitaxial layer, depositing a first dielectric film on the third epitaxial layer, using dielectric films to form a first sidewall dielectric spacer, forming a sidewall gate adjacent the first sidewall dielectric spacer. The sidewall gate may be made to be less than 50 nm in length. | 05-16-2013 |
20160064806 | FLEXIBLE ARTIFICIAL IMPEDANCE SURFACE ANTENNAS FOR AUTOMOTIVE RADAR SENSORS - A flexible, printable antenna for automotive radar. The antenna can be printed onto a thin, flexible substrate, and thus can be bent to conform to a vehicle body surface with compound curvature. The antenna can be mounted to the interior of a body surface such as a bumper fascia, where it cannot be seen but can transmit radar signals afield. The antenna can also be mounted to and blended into the exterior of an inconspicuous body surface, or can be made transparent and mounted to the interior or exterior of a glass surface. The antenna includes an artificial impedance surface which is tailored based on the three-dimensional shape of the surface to which the antenna is mounted and the desired radar wave pattern. The antenna can be used for automotive collision avoidance applications using 22-29 GHz or 76-81 GHz radar, and has a large aperture to support high angular resolution of radar data. | 03-03-2016 |
Patent application number | Description | Published |
20150233222 | ENHANCED OIL RECOVERY PROCESS TO INJECT LOW SALINITY WATER AND GAS IN CARBONATE RESERVOIRS - The present invention relates to a method to enhance oil recovery from a hydrocarbon reservoir. One aspect of the invention includes injecting high salinity water into the reservoir followed by alternating the injection of low salinity water and gas. | 08-20-2015 |
20150233223 | ENHANCED OIL RECOVERY PROCESS TO INJECT SURFACTANT-AUGMENTED LOW-SALINITY WATER IN OIL-WET CARBONATE RESERVOIRS - The present invention relates to a method to enhance oil recovery from a hydrocarbon reservoir. One aspect of the invention includes injecting low salinity water into the reservoir followed by the injection of a surfactant diluted in low salinity water, and alternating the injections of the low salinity water and the surfactant diluted in the low salinity water. The invention improves the effectiveness of the surfactant by reducing the salinity of the reservoir by injecting low-salinity water into the reservoir. | 08-20-2015 |
20160069159 | MATRIX-FRACTURE INTERFACE CLEANUP METHOD FOR TIGHT SANDSTONE, CARBONATE, AND SHALE RESERVOIRS - The invention is related to a method to clean a matrix-fracture interface of fractured tight sandstone, tight carbonate, and tight shale reservoirs. The method involves the injection of at least one fluid into a reservoir, wherein the fluid is gas, a surfactant, a surfactant solution, or combinations thereof. In some embodiments, the reservoir has previously been stimulated mechanically by hydraulic fracturing. | 03-10-2016 |
Patent application number | Description | Published |
20110198935 | INVERTER FOR A THREE-PHASE AC PHOTOVOLTAIC SYSTEM - Various methods and apparatus are described for a photovoltaic system. In an embodiment, pluralities of three-phase Alternating Current (AC) inverter circuits electrically connect into a common three phase AC output. Each of those inverters receives a bipolar DC voltage supplied from its own set of Concentrated PhotoVoltaic (CPV) modules. | 08-18-2011 |
20110199707 | PHOTOVOLTAIC ARRAY GROUND FAULT DETECTION METHOD FOR UTILITY-SCALE GROUNDED SOLAR ELECTRIC POWER GENERATING SYSTEMS - Various methods and apparatus are described for a photovoltaic system. In an embodiment, a hybrid grounding circuit as well as a ground fault monitoring circuit are in the inverter circuitry with its switching devices that generate three-phase Alternating Current (AC) voltage. The three-phase AC voltage is supplied to a utility power grid interface transformer, where a primary-side common node of the Utility Power grid interface transformer is connected to Earth ground. Each inverter has 1) its own set of isolation contacts to connect as well as isolate this particular inverter from the utility grid interface transformer, and 2) control components in the ground fault monitoring circuit for controlling operation of the isolation contacts based off a presence of the ground fault detected by the ground fault monitor circuit for that inverter. The inverter circuit receives a DC voltage supplied from its own set of ungrounded Concentrated PhotoVoltaic modules. | 08-18-2011 |
20120004780 | INTEGRATED REMOTELY CONTROLLED PHOTOVOLTAIC SYSTEM - Various methods and apparatus are described for an integrated remotely controlled photovoltaic system having a number of components. A central backend server management system is configured to facilitate management of two or more solar arrays at a remote site from a client device connected over a public wide area network (WAN). An integrated electronics housing contains multiple circuits, including power generation inverter circuits and solar array motion control circuits for one or more PhotoVoltaic (PV) solar arrays at the remote site. The multiple circuits cohesively exist in the integrated electronics housing and actually perform better because of the interconnectivity. The communication circuitry within the integrated electronics housing is configured to establish secure communications over the WAN with the central backend server management system. The integrated electronics housing acts as the local system control point for the first solar array. | 01-05-2012 |
20120026631 | PHOTOVOLTAIC ARRAY GROUND FAULT DETECTION IN AN UNGROUNDED SOLAR ELECTRIC POWER GENERATING SYSTEM AND TECHNIQUES TO TRANSITION ONTO AND OFF THE UTILITY GRID - In an embodiment, inverter circuitry has switching devices that generate three-phase AC voltage that is supplied to a utility power grid interface transformer. A high impedance circuit as well as a ground fault monitoring circuit couple to the inverter circuit. The high impedance circuit is configured to periodically create a path to Earth ground, and thus, completes the Earth ground electrical path back to the ground fault detection circuit. A set of isolation contacts at the AC 3-phase power output connect as well as isolate this particular inverter from the utility grid interface transformer. Control components in the ground fault monitoring circuit control the operation of the isolation contacts based off a presence of a ground fault in ungrounded solar arrays that supply DC power to this ungrounded inverter circuitry when the ground fault is detected by the ground fault monitor circuit for that ungrounded inverter. | 02-02-2012 |
20120072041 | INTEGRATED ELECTRONICS HOUSING FOR A SOLAR ARRAY - An integrated electronics housing contains both system electronics and power generation circuits for a two-axis tracker assembly having a CPV solar array. The housing contains at least a communication bus, motion control circuits, and inverter circuits, and acts as the local system control point for that tracker mechanism. The inverter circuits generate three-phase AC voltage that is supplied to a grid interface transformer. Each inverter receives a bipolar DC voltage supplied from its own set of CPV cells. The motion control circuits move the CPV cells of the tracker mechanism to angular coordinates resulting from a solar tracking algorithm. The communication bus connects to the motion control circuits and the inverter circuits to facilitate communications of information, including parameters of power being generated by the inverter circuits, between the motion control circuits and the AC inverter circuits to fine tune the AC power generated out of the tracker mechanism. | 03-22-2012 |
20120158200 | INTEGRATED PERFORMANCE MONITORING FOR A CONCENTRATED PHOTOVOLTAIC (CPV) SYSTEM - A plurality of concentrated photovoltaic (CPV) arrays located at a solar site may be operated and communicate with a central backend management system over a public wide area network. Each of the CPV arrays is associated with a different system control point (SCP). Each SCP includes circuitry with test points for performance monitoring of at least 1) an electrical power generating circuitry that generates alternating current (AC) voltage output and 2) a tracker motion control circuit to control a position of the CPV array for that SCP, and 1) configured logic, 2) resident software applications, or 3) any combination of both in the SCP is configured to collect the performance monitoring information and store in a memory of the SCP. The information from the circuitry with test points for performance monitoring is communicated to the central backend management system over the public wide area network. | 06-21-2012 |
Patent application number | Description | Published |
20100070429 | Systems And Methods For Investment Tracking - Systems and methods for investment tracking are disclosed. For example, one method for investment tracking includes the steps of receiving information describing a plurality of funds, receiving a selection of a benchmark for an investment portfolio, identifying a candidate set of assets for the investment portfolio, the candidate set of investments comprising a plurality of asset classes; and identifying a set of candidate weighting factors to associate with at least one of the plurality of asset classes. The method further includes the steps of selecting at least one weighting factor from the set of candidate weighting factors, selecting at least one asset class from the plurality of asset classes based on a stepwise procedure and associating the at least one weighting factor with at least one asset class, determining a weight value of the at least one weighting factor; estimating, based on a GARCH analysis, a variance/covariance of asset returns, a variance of the benchmark, a covariance vector of asset returns, and an expected return on an asset; constructing the investment portfolio from at least one of the candidate sets of assets and based on the at least one weighting factor, and purchasing assets corresponding to the investment portfolio. | 03-18-2010 |
20100121755 | Commodity Futures Index and Methods and Systems of Trading in Futures Contracts That Minimize Turnover and Transactions Costs - This invention relates to methods and systems for reducing transaction costs and minimizes turnover in the trading of futures contracts. The invention further describes an algorithm whose output is a unique method of investing in futures contracts that reduces the rate of turnover, and thus the cost of trading, of certain common trading strategies. The primary application of this method is to a class of strategies referred to as indexing strategies that incorporate a dynamic asset allocation approach using futures contracts. | 05-13-2010 |
20130268424 | Commodity Futures Index and Methods and Systems of Trading in Futures Contracts that Minimize Turnover and Transaction Costs - This invention relates to methods and systems for reducing transaction costs and minimizes turnover in the trading of futures contracts. The invention further describes an algorithm whose output is a unique method of investing in futures contracts that reduces the rate of turnover, and thus the cost of trading, of certain common trading strategies. The primary application of this method is to a class of strategies referred to as indexing strategies that incorporate a dynamic asset allocation approach using futures contracts. | 10-10-2013 |
Patent application number | Description | Published |
20140274150 | PROXIMITY FENCE - A proximity fence can be a location-agnostic fence defined by signal sources having no geographic location information. The proximity fence can correspond to a group of signal sources instead of a point location fixed to latitude and longitude coordinates. A signal source can be a radio frequency (RF) transmitter broadcasting a beacon signal. The beacon signal can include a payload that includes an identifier indicating a category to which the signal source belongs, and one or more labels indicating one or more subcategories to which the signal source belongs. The proximity fence defined by the group of signal sources can trigger different functions of application programs associated with the proximity fence on a mobile device, when the mobile device moves within the proximity fence and enters and exits different parts of the proximity fence corresponding to the different subcategories. | 09-18-2014 |
20140357196 | Methods for Calibrating Receive Signal Strength Data in Wireless Electronic Devices - A wireless electronic device may include wireless communications circuitry and processing circuitry. The wireless communications circuitry may receive radio-frequency signals from external communications circuitry in a number of frequency channels of a communications band. The processing circuitry may gather received signal quality data such as receive signal strength indicator (RSSI) values from the radio-frequency signals received in each of the frequency channels. The processing circuitry may accumulate respective probability distributions of gathered RSSI values for each frequency channel and may compare each of the probability distributions to generate RSSI offset values for each frequency channel. The processing circuitry may gather additional RSSI values in one or more frequency channels and may adjust the additional RSSI values based on the associated RSSI offset values. The processing circuitry may use the adjusted RSSI values to determine an accurate location of the wireless electronic device. | 12-04-2014 |
20140358835 | RANGE CLASS ESTIMATION FOR RADIO FREQUENCY DEVICES - Implementations are disclosed for obtaining a range state of a device operating in an indoor environment with radio frequency (RF) signal sources. In some implementations, windowed signal measurements obtained from RF signals transmitted by an RF signal source are classified into range classes that are defined by threshold values obtained from a RF signal propagation model. A range class observation is obtained by selecting a range class among a plurality of range classes based on a percentage of a total number of windowed signal measurements that are associated with the range class. The range class observation is provided as input to a state estimator that estimates a range class that accounts for process and/or measurement noise. The output of the state estimator is provided as input to a state machine. | 12-04-2014 |
20140364103 | NON-INTRUSIVE REGION NOTIFICATION - Techniques of non-intrusive region notification are described. A mobile device can be programmed to trigger an application program when the mobile device enters or exits a region. The region can be defined by various virtual fencing technologies. If, at the time of entry or exit of a region, the mobile device is in a power-saving operating mode, the mobile device can transition to an active operating mode temporarily, register a fence-crossing event (entry or exit of the region) with the application program, and then transition back to the power-saving operating mode. The mobile device can launch the registered application program in response to the mobile device receiving a user input to enter the active operating mode. The application program can provide a user interface associated with the region on a display surface of the mobile device in place of a home screen or other user interface. | 12-11-2014 |
20150181384 | Programmable Beacon Payloads - In some implementations, a beaconing protocol can be used to broadcast beacon information to mobile devices. The beaconing protocol can be used by a Bluetooth Low Energy (LE) (e.g., Bluetooth 4.0) beacon to transmit a package of information that identifies the beacon and indicates the calibrated transmission power (e.g., measured power) of the beacon. The package of information can be configured by beacon providers and/or beacon installers at the locations where the beacons are installed. When a mobile device receives the beacon package, the mobile device can use the beacon identification information and/or the measured power of the beacon to determine a location (e.g., precise location, geofence location) of the mobile device. In some implementations, the mobile device can transmit the beacon information to a server and the server can determine the location of the mobile device and send location and/or content information back to the mobile device. | 06-25-2015 |
20150201306 | Range-Free Proximity Determination - Techniques of range free proximity determination are described. A mobile device can determine an entry into or exit from a proximity fence upon determining that the mobile device is sufficiently close to a signal source. The proximity fence can be a virtual fence defined by the signal source and associated with a service. The mobile device can detect signals from multiple signal sources. The mobile device can determine that, among the signal sources, one or more signal sources are located closest to the mobile device based on a ranking of the signal sources using signal strength. The mobile device can determine a probability indicating a confident level of the ranking. The mobile device can determine that the mobile device entered or exited a proximity fence associated with a highest ranked signal source satisfying a confidence threshold. | 07-16-2015 |
20150347351 | Determining Location System Signal Quality - Among other things, we describe a method that includes, on an electronic device, determining that a current quality metric of signals received by a location system of the electronic device does not meet a threshold quality metric, and based on the determination, selecting a recommendation for changing a position of the device in a manner that would alter the current quality metric. This aspect can also include corresponding systems, apparatus, and computer program products stored on a storage device. | 12-03-2015 |
20150350833 | Evaluating Location Based On Multiple Data Sources - Among other things, we describe a method that includes, on an electronic device, receiving, from a first location system of the electronic device, first data indicative of a first location of the device at a first time, comparing the first data to second data indicative of a second location of the device at a second time, the second data having been received from a second location system of the electronic device, and based on the comparison, determining whether the first data meets a threshold of location data integrity. | 12-03-2015 |
20160044457 | PROXIMITY FENCE - A proximity fence can be a location-agnostic fence defined by signal sources having no geographic location information. The proximity fence can correspond to a group of signal sources instead of a point location fixed to latitude and longitude coordinates. A signal source can be a radio frequency (RF) transmitter broadcasting a beacon signal. The beacon signal can include a payload that includes an identifier indicating a category to which the signal source belongs, and one or more labels indicating one or more subcategories to which the signal source belongs. The proximity fence defined by the group of signal sources can trigger different functions of application programs associated with the proximity fence on a mobile device, when the mobile device moves within the proximity fence and enters and exits different parts of the proximity fence corresponding to the different subcategories. | 02-11-2016 |
Patent application number | Description | Published |
20090100024 | MULTI-MODAL MOBILE PLATFORM - There is provided a multi-modal mobile platform system for permitting a user to interact and exchange data through a mobile device. It will be appreciated that the present invention may be employed on any mobile device such as a cellular phone or Personal Digital Assistant (PDA) and the like. It is contemplated that the multi-modal platform (MMP) provides the basic constructs for a unified multi-modal data access and query platform that will overcome the deficiencies of the services based on a uni-modal platform such as web-only services or text messaging only services. The present system may use a Voice Portal, a Text Messages Portal, an eMail Portal, a Web Portal, a Downloadable Application Portal, or a WAP or Mobile Web Portal to facilitate communication between a user and third parties. | 04-16-2009 |
20090310028 | System for Controlling a Group of Picture Frames - A system for controlling multiple electronic displays is presented. The system comprises a display manager capable of aggregating environmental data and deriving a context based on the data. In response to the context, the display manager can coordinate the display of content on the multiple displays. In some embodiments, the displays can be registered members of a group; a family for example. | 12-17-2009 |
20100039496 | Video Conferencing Using Affiliated Displays - Methods for providing video conferencing through network enabled electronic displays are presented. Each of a plurality of displays, preferably digital picture frames, is assigned an identifier used to identify the displays for a video conferencing session. The displays can form a group affiliation as a function of their identifier and can be packaged for sale as a group. Consumers can purchase a package of affiliated displays preconfigured to support a video conference among each other. During a video conferencing session the affiliated displays are allowed to exchange video conferencing data through an intermediary video conferencing server or directly with each other. | 02-18-2010 |
20130159629 | METHOD AND SYSTEM FOR HASH KEY MEMORY FOOTPRINT REDUCTION - A system and method are disclosed for storing data in a hash table. The method includes receiving data, determining a location identifier for the data wherein the location identifier identifies a location in the hash table for storing the data and the location identifier is derived from the data, compressing the data by extracting the location identifier; and storing the compressed data in the identified location of the hash table. | 06-20-2013 |
20130318391 | METHODS FOR MANAGING FAILURE OF A SOLID STATE DEVICE IN A CACHING STORAGE - Techniques for managing caching use of a solid state device are disclosed. In some embodiments, the techniques may be realized as a method for managing caching use of a solid state device. Management of the caching use may include receiving, at a host device, notification of failure of a solid state device. In response to the notification a cache mode may be set to uncached. In uncached mode input/output (I/O) requests may be directed to uncached storage (e.g., disk). | 11-28-2013 |
20140351522 | STORAGE SYSTEM WITH REDUCED HASH KEY MEMORY - A system and method are disclosed for storing data in a hash table. The method includes receiving data, determining a location identifier for the data wherein the location identifier identifies a location in the hash table for storing the data and the location identifier is derived from the data, compressing the data by extracting the location identifier; and storing the compressed data in the identified location of the hash table. | 11-27-2014 |