Patent application number | Description | Published |
20090027119 | Reduced distortion radio frequency amplifiers - A radio frequency power amplifier system includes a power amplifier coupled to an input signal and configured to provide an output signal at a radio frequency; a signal cancellation system coupled to the input signal, and a first feedback signal, which is based on the output signal, and configured to provide an error signal with a reduced level of the input signal; and a feedback control system coupled to the error signal and configured to provide a correction signal that is used to reduce distortion in the output signal. A corresponding method includes amplifying in a forward path an input signal to provide an output signal at a radio frequency; combining a reference and a first feedback signal to provide an error signal with a reduced level of the input signal; providing, responsive to the error signal and in a. feedback control system that is separate from the forward path, a correction signal; and then using the correction signal to reduce distortion in the output signal. | 01-29-2009 |
20100133911 | Solar power array with maximized panel power extraction - A solar power array includes solar power panels, where each solar panel provides output current and voltage, separate DC-DC converters, where each solar panel is connected to a unique DC-DC converter, where each DC-DC converter is designed to maximize the power from each solar panel, and where each DC-DC converter produces a high voltage output, a high voltage DC bus coupled to the DC-DC converters that receives the high voltage output, and a DC-AC inverter that inverts the high voltage DC on the high voltage DC bus to an AC power signal for distribution to one or more AC loads. | 06-03-2010 |
Patent application number | Description | Published |
20090095889 | Occupancy sensor assembly - An occupancy sensor is provided with a housing having an interior cavity. A switch is mounted in the interior cavity of the housing and configured for placement in the open and closed positions. A fascia cover plate may be positioned on the housing to enclose the interior cavity. The fascia cover plate has a fascia rib on an interior surface thereof. The fascia rib is arranged to interfere with the switch in the disabled state to prevent positioning of the fascia cover plate on the housing. | 04-16-2009 |
20090115385 | Dual circuit wall switch occupancy sensor and method of operating same - A method and apparatus are provided for detecting occupancy in an area using multiple detection technologies (e.g., ultrasound and infrared sensing) to intelligently control switching of plural load circuits whereby one of the circuits is affected by photocell control. A programmable controller implements auto-on, manual-on, reversion to auto-on and override operations with respect to the separately controlled load circuits based on sensor outputs and user inputs. An improved power supply for an occupancy sensor and load control device employs a DC voltage derived from leakage AC voltage between line and ground to drive the sensors and other circuits, and a switching regulator with a switching cycle controlled by a pulse width modulated (PWM) subsystem of the apparatus, allowing synchronous, delayed or exclusive operation relative to the sensing technology such as the US transmitter. | 05-07-2009 |
20100294915 | OCCUPANCY SENSOR AND OVERRIDE UNIT FOR PHOTOSENSOR-BASED CONTROL OF LOAD - An occupancy sensor is provided with a separable override unit which can selectively override the operation of the occupancy sensor at designated times and for selected time intervals. The occupancy sensor includes a light sensor for actuating the occupancy sensor and a light assembly when the ambient light is below a predetermined level and to deactivate the occupancy sensor when the ambient light is above a threshold level to prevent the light assembly from being actuated when the light level is sufficient to avoid the need for actuating the light assembly. The override unit is removably attached to the occupancy sensor and is provided with a light source, such as an LED. The override unit is coupled to the occupancy sensor to emit light to actuate the light sensor of the occupancy sensor, thereby controlling the operation of the occupancy sensor, such as by preventing the occupancy sensor from being actuated regardless of the light level in the surrounding areas. The occupancy sensor includes a cavity on a top surface for receiving the override unit. The light sensor of the occupancy sensor is positioned in the cavity. The LED on the override unit is on an end that is inserted into the cavity to align with the light sensor. A control unit is operatively connected to one or more override units for selectively controlling the normal operation of the occupancy sensor. | 11-25-2010 |
20120175494 | OCCUPANCY SENSOR AND CONTROLLABLE PHOTOSENSOR - An occupancy sensor is provided with a separable override unit to selectively override the operation of the occupancy sensor at designated times and for selected time intervals. The occupancy sensor includes a light sensor for actuating the occupancy sensor and a light assembly when the ambient light is below a predetermined level and to deactivate the occupancy sensor when the ambient light is above a threshold level. The override unit having a light source is removably attached to the occupancy sensor. The override unit is coupled to the occupancy sensor to emit light to actuate the light sensor of the occupancy sensor, thereby preventing the occupancy sensor from being actuated regardless of the light level in the surrounding areas. A control unit is operatively connected to one or more override units for selectively controlling the normal operation of the occupancy sensor. | 07-12-2012 |
20130271011 | OCCUPANCY SENSOR AND OVERRIDE UNIT FOR PHOTOSENSOR-BASED CONTROL OF LOAD - An occupancy sensor with a separable override unit can selectively override the operation of the occupancy sensor at designated times and for selected time intervals. The occupancy sensor includes a light sensor to actuate the occupancy sensor and a light assembly when the ambient light is below a predetermined level and to deactivate the occupancy sensor when the ambient light is above a threshold level. The override unit is provided with a light source, such as an LED, to emit light to actuate the light sensor of the occupancy sensor, thereby controlling the occupancy sensor, such as by preventing the occupancy sensor from being actuated. The occupancy sensor includes a cavity for receiving the override unit with the LED aligned with the light sensor: A control unit is operatively connected to one or more override units for selectively controlling the normal operation of the occupancy sensor. | 10-17-2013 |
Patent application number | Description | Published |
20080274194 | Stabilized Hme Composition With Small Drug Particles - A hot-melt extruded composition having finely divided drug-containing particles dispersed within a polymeric and/or lipophyllic carrier matrix is provided. The carrier softens or melts during hot-melt extrusion but it does not dissolve the drug-containing particles during extrusion. As a result, a majority or at least 90% wt. of the drug-containing particles in the extrudate are deaggregated during extrusion into essentially primary crystalline and/or amorphous particles. PEO is a suitable carrier material for drugs insoluble in the solid state in this carrier. Various functional excipients can be included in the carrier system to stabilize the particle size and physical state of the drug substance in either a crystalline and/or amorphous state. The carrier system is comprised of at least one thermal binder, and may also contain various functional excipients, such as: super-disintegrants, antioxidants, surfactants, wetting agents, stabilizing agents, retardants, or similar functional excipients. A hydrophilic polymer, such as hydroxypropyl methylcellulose (HPMC E15), polyvinyl alcohol (PVA), or poloxamer, and/or a surfactant, such as sodium lauryl sulfate (SLS), can be included in the composition. A process for preparing the extrudate is conducted at a temperature approximating or above the softening or melting temperature of the matrix and below the point of solubilization of drug-containing particles in the carrier system, and below the recrystallization point in the case of amorphous fine drug particles. | 11-06-2008 |
20090053315 | Thermo-Kinetic Mixing for Pharmaceutical Applications - Compositions and methods for making a pharmaceutical dosage form include making a pharmaceutical composition that includes one or more active pharmaceutical ingredients (API) with one or more pharmaceutically acceptable excipients by thermokinetic compounding into a composite. Compositions and methods of preprocessing a composite comprising one or more APIs with one or more excipients include thermokinetic compounding, comprising thermokinetic processing the APIs with the excipients into a composite, wherein the composite can be further processed by conventional methods known in the art, such as hot melt extrusion, melt granulation, compression molding, tablet compression, capsule filling, film-coating, or injection molding. | 02-26-2009 |
20100183721 | ENHANCED DELIVERY OF IMMUNOSUPPRESSIVE DRUG COMPOSITIONS FOR PULMONARY DELIVERY - The present invention includes compositions and methods for making and using a rapid dissolving, high potency, substantially amorphous nanostructured aggregate for pulmonary delivery of tacrolimus and a stabilizer matrix comprising, optionally, a polymeric or non-polymeric surfactant, a polymeric or non-polymeric saccharide or both, wherein the aggregate comprises a surface area greater than 5 m | 07-22-2010 |
Patent application number | Description | Published |
20080229412 | Associating Security Information with Information Objects - A hash key is generated based on an information object and a lookup operation is performed in a hash table based on the hash key. A determination is made whether an entry in the hash table at an index corresponding to the hash key identifies a labelset for the information object. A labelset, identifying a sensitivity of the information object, is stored in the entry at the index corresponding to the hash key for the information object if a labelset for the information object is not identified in the entry in the hash table. Information flows involving the information object are authorized based on a lookup of the labelset associated with the information object in the hash table. The hash table may be a multidimensional hash table. | 09-18-2008 |
20080229413 | Authorizing Information Flows - Authorizing information flows between devices of a data processing system is provided. In one illustrative embodiment, an information flow request is received from a first device to authorize an information flow from the first device to a second device. The information flow request includes an identifier of the second device. Based on an identifier of the first device and the second device, security information identifying an authorization level of the first device and second device is retrieved. A sensitivity of an information object that is to be transferred in the information flow is determined and the information flow is authorized or denied based only on the sensitivity of the information object and the authorization level of the first and second devices irregardless of the particular action being performed on the information object as part of the information flow. | 09-18-2008 |
20090119507 | Reference Monitor for Enforcing Information Flow Policies - A reference monitor that authorizes information flows between elements of a data processing system is provided. The elements of the data processing system are associated with security data structures in a reference monitor. An information flow request is received from a first element to authorize an information flow from the first element to a second element. A first security data structure associated with the first element and a second security data structure associated with the second element are retrieved. At least one set theory operation is then performed on the first security data structure and the second security data structure to determine if the information flow from the first element to the second element is to be authorized. The security data structures may be labelsets having one or more labels identifying security policies to be applied to information flows involving the associated element. | 05-07-2009 |
20110302413 | Authorizing Information Flows Based on a Sensitivity of an Information Object - A system, apparatus, computer program product and method for authorizing information flows between devices of a data processing system are provided. In one illustrative embodiment, an information flow request is received from a first device to authorize an information flow from the first device to a second device. The information flow request includes an identifier of the second device. Based on an identifier of the first device and the second device, security information identifying an authorization level of the first device and second device is retrieved. A sensitivity of an information object that is to be transferred in the information flow is determined and the information flow is authorized or denied based only on the sensitivity of the information object and the authorization level of the first and second devices irregardless of the particular action being performed on the information object as part of the information flow. | 12-08-2011 |
20110307622 | Method and System for Secure Server-Based Session Management Using Single-Use HTTP Cookies - A methodology for providing secure session management is presented. After a single-use token has been issued to a client, it presents the token, and the server may identify the client based upon the presented token. However, the token may be used only once without being refreshed prior to re-use, thereby causing the token to be essentially reissued upon each use. The token comprises a session identifier that allows the issuer of the token to perform session management with respect to the receiving entity. Tokens can be classified into two types: domain tokens and service tokens. Domain tokens represent a client identity to a secure domain, and service tokens represent a client identity to a specific service. A domain token may be used with any service within a domain that recognizes the domain token, but a service token is specific to the service from which it was obtained. | 12-15-2011 |
Patent application number | Description | Published |
20090273013 | METHOD OF FORMING A SPLIT GATE MEMORY DEVICE AND APPARATUS - A split-gate memory device has a select gate having a first work function overlying a first portion of a substrate. A control gate having a second work function overlies a second portion of the substrate proximate the first portion. When the majority carriers of the split-gate memory device are electrons, the first work function is greater than the second work function. When the majority carriers of the split-gate memory device are holes, the first work function is less than the second work function. First and second current electrodes in the substrate are separated by a channel that underlies the control gate and select gate. The differing work functions of the control gate and the select gate result in differing threshold voltages for each gate to optimize device performance. For an N-channel device, the select gate is P conductivity and the control gate is N conductivity. | 11-05-2009 |
20110165749 | METHOD OF MAKING A SEMICONDUCTOR STRUCTURE USEFUL IN MAKING A SPLIT GATE NON-VOLATILE MEMORY CELL - A method of making a semiconductor device on a semiconductor layer is provided. The method includes: forming a select gate dielectric layer over the semiconductor layer; forming a select gate layer over the select gate dielectric layer; and forming a sidewall of the select gate layer by removing at least a portion of the select gate layer. The method further includes growing a sacrificial layer on at least a portion of the sidewall of the select gate layer and under at least a portion of the select gate layer and removing the sacrificial layer to expose a surface of the at least portion of the sidewall of the select gate layer and a surface of the semiconductor layer under the select gate layer. The method further includes forming a control gate dielectric layer, a charge storage layer, and a control gate layer. | 07-07-2011 |
20130109141 | TRANSISTORS WITH DIFFERENT THRESHOLD VOLTAGES | 05-02-2013 |
20150054048 | Split-Gate Non-Volatile Memory Cells Having Gap Protection Zones - Split-gate non-volatile memory (NVM) cells having gap protection zones are disclosed along with related manufacturing methods. After formation of a gate for a split-gate NVM cell over a substrate, a doped region is formed adjacent the gate. A first portion of the doped region is then removed to leave a second portion of the doped region that forms a gap protection zone adjacent the select gate. For some disclosed embodiments, a select gate is formed before a control gate for the split-gate NVM cell. For other disclosed embodiments, the control gate is formed before the select gate for the split-gate NVM cell. The gap protection zones can be formed, for example, using an etch processing step to remove the desired portions of the doped region, and a spacer can also be used to protect the gap protection zone during this etch processing step. Related NVM systems are also disclosed. | 02-26-2015 |