Patent application number | Description | Published |
20080269627 | Method and Apparatus for Sensing Improvement Using Pressure Data - Method and apparatus for sensing improvement using pressure data. The method and apparatus may be used in an implantable medical device to confirm that an EGM event signifies a true mechanical cardiac activity and not just electrical oversensing. The mechanical activity may be used to create a mechanical marker channel in the implantable medical device. | 10-30-2008 |
20100109966 | Multi-Layer Miniature Antenna For Implantable Medical Devices and Method for Forming the Same - An antenna for an implantable medical device (IMD) is provided including a monolithic structure derived from a plurality of discrete dielectric layers having an antenna embedded within the monolithic structure. Superstrate dielectric layers formed above the antenna may provide improved matching gradient with the surrounding environment to mitigate energy reflection effects. A outermost biocompatible layer is positioned over the superstrates as an interface with the surrounding environment. A shielding layer is positioned under the antenna to provide electromagnetic shielding for the IMD circuitry. Substrate dielectric layers formed below the antenna may possess higher dielectric values to allow the distance between the antenna and ground shielding layer to be minimized. An electromagnetic bandgap layer may be positioned between the antenna and the shielding layer. The dielectric layers may comprise layers of ceramic material that can be co-fired together with the antenna to form a hermetically sealed monolithic antenna structure. | 05-06-2010 |
20110201952 | METHOD AND APPARATUS FOR SENSING IMPROVEMENT USING PRESSURE DATA - A method and apparatus for sensing improvement using pressure data. The method and apparatus may be used in an implantable medical device to confirm that an EGM event signifies a true mechanical cardiac activity and not just electrical oversensing. The mechanical activity may be used to create a mechanical marker channel in the implantable medical device. | 08-18-2011 |
20120108993 | ELECTRODE SHAPES AND POSITIONS FOR REDUCING LOSS OF CONTACT IN AN IMPLANTABLE ECG RECORDER - An improved design for subcutaneous monitors that addresses the problem caused by bubbles of air may remain in the pocket in which the device is implanted. As implantable monitors and their associated electrodes are reduced in size, these bubbles may in some cases cover one or both electrodes, interfering with sensing of the ECG signal. The invention addresses this problem by configuring the electrodes to increase the pressure of the electrodes against the tissue above the electrodes relative to the pressures exerted by the adjacent outer facing surfaces of the device. | 05-03-2012 |
20120109259 | LOW-POWER SYSTEM CLOCK CALIBRATION BASED ON A HIGH- ACCURACY REFERENCE CLOCK - Various techniques are described for periodically performing a calibration routine to calibrate a low-power system clock within an implantable medical device (IMD) based on a high accuracy reference clock also included in the IMD. The system clock is powered continuously, and the reference clock is only powered on during the calibration routine. The techniques include determining a clock error of the system clock based on a difference between frequencies of the system clock and the reference clock over a fixed number of clock cycles, and adjusting a trim value of the system clock to compensate for the clock error. Calibrating the system clock with a delta-sigma loop, for example, reduces the clock error over time. This allows accurate adjustment of the system clock to compensate for errors due to trim resolution, circuit noise and temperature. | 05-03-2012 |
20130234692 | VOLTAGE SUPPLY AND METHOD WITH TWO REFERENCES HAVING DIFFERING ACCURACY AND POWER CONSUMPTION - Voltage supply and method having a first reference and a second reference. The first reference has an operation mode configured to supply a first reference voltage at a first accuracy and consume an operation power and a standby mode configured to consume standby power less than the operation power. The second reference is configured to supply a second reference having a second accuracy less than the first accuracy of the first reference and which consumes a second reference power less than the operation power of the first reference, the second reference voltage being trimmable based, at least in part, on a comparison of the first reference voltage to the second reference voltage. | 09-12-2013 |
20130238840 | MEMORY ARRAY WITH FLASH AND RANDOM ACCESS MEMORY AND METHOD THEREFOR - Memory array, system and method for storing data. The memory array has a flash memory array, a random access memory array coupled to the flash memory and configured to receive the data, a memory management module and a data bus. The memory management module is coupled to the random access memory array and to the flash memory array, the memory management module being configured to transfer at least a portion of the data stored in the random access memory array to the flash memory array. The data bus is coupled to the flash memory array and configured to output at least a portion of the data originally stored in the random access memory array from the flash memory array. | 09-12-2013 |
20140277215 | IMPLANTABLE MEDICAL DEVICE HAVING POWER SUPPLY FOR GENERATING A REGULATED POWER SUPPLY - A device for generating a plurality of output voltages from a single input energy supply source is described. The device includes a switched capacitor voltage converter that provides each of the output voltages having different supply ratios. The supply ratio is defined as a function of the input voltage provided to the switched capacitor voltage converter by the energy supply source. The switched capacitor voltage converter includes a plurality of capacitors selectively coupled to a plurality of switches that dynamically configure the capacitors into a plurality of stacked configurations. Switching between the plurality of stacked configurations may be controlled based on predetermined criteria. | 09-18-2014 |
20140277283 | IMPLANTABLE MEDICAL DEVICE HAVING POWER SUPPLY FOR GENERATING A REGULATED POWER SUPPLY - Techniques are disclosed for generating a plurality of output voltages from a single input power source. The techniques include implementing a switched capacitor voltage converter to provide at least two output voltages having different supply ratios. The supply ratio is defined as a function of the input voltage provided to the switched capacitor voltage converter by the power source. The switched capacitor voltage converter includes a plurality of capacitors selectively coupled to a plurality of switches to define at least a first and a second mode with each of the modes having a plurality of configurations. In accordance with aspects of the disclosure, the techniques include coupling the plurality of capacitors to define the first or second mode based on predetermined criteria. | 09-18-2014 |
20140371818 | LOW-POWER SYSTEM CLOCK CALIBRATION BASED ON A HIGH-ACCURACY REFERENCE CLOCK - Various techniques are described for periodically performing a calibration routine to calibrate a low-power system clock within an implantable medical device (IMD) based on a high accuracy reference clock also included in the IMD. The system clock is powered continuously, and the reference clock is only powered on during the calibration routine. The techniques include determining a clock error of the system clock based on a difference between frequencies of the system clock and the reference clock over a fixed number of clock cycles, and adjusting a trim value of the system clock to compensate for the clock error. Calibrating the system clock with a delta-sigma loop, for example, reduces the clock error over time. This allows accurate adjustment of the system clock to compensate for errors due to trim resolution, circuit noise and temperature. | 12-18-2014 |
20150070022 | BATTERY RECOMMENDED REPLACEMENT TIME INDICATOR SYSTEM - A method of generating at least one recommended replacement time signal for a battery is provided. The method includes measuring a plurality of associated unloaded and loaded battery voltages. A delta voltage for each associated unloaded and loaded battery voltage is then determined. A select number of delta voltages are averaged. A minimum delta voltage is determined from a plurality of the averaged delta voltages. At least one recommended replacement time signal for the battery is generated with the use of the minimum delta voltage when at least one averaged delta voltage is detected that has at least reached a replacement threshold. | 03-12-2015 |
20150073295 | APPARATUS AND METHOD FOR SIMULTANEOUS CAPTURE OF BIOPOTENTIAL AND TISSUE IMPEDANCE SIGNALS - A medical device and associated method acquire a biopotential signal from a pair of electrodes at a first sampling rate and a bioimpedance signal from the pair of electrodes at a second sampling rate. An onset and/or offset of the drive signal delivered to the pair of electrodes for acquiring the bioimpedance signal is synchronized to the first sampling rate. | 03-12-2015 |
20150073497 | OPTIMIZED FLASH MEMORY DEVICE FOR MINIATURIZED DEVICES - An implantable medical device have an associated memory device is disclosed. The implantable medical device utilizes techniques for optimizing one or more embedded operations of the memory device, such operations including programming, reading or erasing data. The techniques for optimizing the embedded operations include controlling the operations as a function of an energy source of the implantable medical device. | 03-12-2015 |
20150073507 | SUPPLY NOISE REJECTION IN IMPLANTABLE MEDICAL DEVICES - The present invention provides an implantable medical device having at least two electrodes coupled to the device housing. The electrodes may be configured for sensing physiological signals such as cardiac signals and alternatively for providing an electrical stimulation therapy such as a pacing or defibrillation therapy. In accordance with aspects of the disclosure, the device housing provides a hermetic enclosure that includes a first housing section that is hermetically coupled to a second housing section. At least one of the at least two electrodes is coupled to an exterior surface of the first housing section that encloses the battery components of the device. The first housing section is electrically insulated from the cathode and anode of the battery. | 03-12-2015 |
20150088216 | METHOD AND APPARATUS FOR AUTOMATIC CONFIGURATION OF IMPLANTABLE MEDICAL DEVICES - A system including a programmable implantable monitoring device and a programmer for programming the device and a method of use thereof. The programmer may be configured to transmit programming commands responsive to entry of a reason for monitoring to the implantable device including a prioritization of an arrhythmia storage criterion. The implantable may be configured to thereafter store and/or transmit records of the arrhythmia according to the prioritization. The programmer may be configured to transmit the patient's age to the implantable device and the implantable may be configured to thereafter apply arrhythmia detection criteria based upon the patient's age. | 03-26-2015 |
20150251010 | IMPLANTABLE MEDICAL DEVICE HAVING POWER SUPPLY FOR GENERATING A REGULATED POWER SUPPLY - A device for generating a plurality of output voltages from a single input energy supply source is described. The device includes a switched capacitor voltage converter that provides each of the output voltages having different supply ratios. The supply ratio is defined as a function of the input voltage provided to the switched capacitor voltage converter by the energy supply source. The switched capacitor voltage converter includes a plurality of capacitors selectively coupled to a plurality of switches that dynamically configure the capacitors into a plurality of stacked configurations. Switching between the plurality of stacked configurations may be controlled based on predetermined criteria. | 09-10-2015 |
Patent application number | Description | Published |
20100169035 | METHODS AND SYSTEMS FOR OBSERVING SENSOR PARAMETERS - The invention disclosed herein provides methods and materials for observing the state of a sensor, for example those used by diabetic patients to monitor blood glucose levels. Typically a voltage such as a voltage pulse is applied to the sensor in order to solicit a current response from which for example, factors such as impedance values can be derived. Such values can then be used as indicators of a sensor's state, for example the state of sensor hydration, sensor noise, sensor offset, sensor drift or the like. | 07-01-2010 |
20110230741 | METHODS AND SYSTEMS FOR OBSERVING SENSOR PARAMETERS - The invention disclosed herein provides methods and materials for observing the state of a sensor, for example those used by diabetic patients to monitor blood glucose levels. Typically a voltage such as a voltage pulse is applied to the sensor in order to solicit a current response from which for example, factors such as impedance values can be derived. Such values can then be used as indicators of a sensor's state, for example the state of sensor hydration, sensor noise, sensor offset, sensor drift or the like. | 09-22-2011 |
Patent application number | Description | Published |
20100291593 | METHOD OF IDENTIFYING DIAGNOSTIC REAGENTS - Disclosed herein are methods for identifying diagnostic reagents (e.g., antigen-binding molecules, such as antibodies) that are useful, for instance, as primary diagnostic, prognostic, and/or predictive (e.g., companion diagnostic) reagents in a disease state, such as cancer. | 11-18-2010 |
20140087954 | QUANTITATIVE NUCLEASE PROTECTION ASSAY (QNPA) AND SEQUENCING (QNPS) IMPROVEMENTS - The present disclosure provides an improvement to quantitative Nuclease Protection Assay (qNPA) and quantitative Nuclease Protection Sequencing (qNPS) methods. The disclosed methods use nuclease protection probes (NPPs) that include 5′-end and/or 3-end flanking sequences, which provide a universal hybridization and/or amplification sequence. The disclosed methods can be used to sequence or detect target nucleic acid molecules, such as those present in fixed or insoluble samples. | 03-27-2014 |
20140235460 | QUANTITATIVE NUCLEASE PROTECTION ASSAY (QNPA) AND SEQUENCING (QNPS) IMPROVEMENTS - The present disclosure provides an improvement to quantitative Nuclease Protection Assay (qNPA) and quantitative Nuclease Protection Sequencing (qNPS) methods. The disclosed methods use nuclease protection probes (NPPs) that include 5′-end and/or 3-end flanking sequences, which provide a universal hybridization and/or amplification sequence. The disclosed methods can be used to sequence or detect target nucleic acid molecules, such as those present in fixed or insoluble samples. | 08-21-2014 |
Patent application number | Description | Published |
20110130915 | HEALTH MONITORING SYSTEMS AND METHODS WITH VEHICLE IDENTIFICATION - A health monitoring system is provided for a vehicle with an identity configured to travel on a surface. The system includes a body positioned on the surface and configured to stimulate a dynamic response from the vehicle as the vehicle travels over the body; a response sensor associated with the body and configured to measure the dynamic response from the vehicle; and an identification sensor associated with the body and configured to collect data corresponding to the identity of the vehicle. | 06-02-2011 |
20110224865 | HEALTH MONITORING SYSTEMS AND METHODS WITH VEHICLE VELOCITY - A health monitoring system is provided for a vehicle configured to travel over a surface with a velocity. The system includes a body configured to stimulate a dynamic response from the vehicle as the vehicle travels over the body; a response sensor associated with the body and configured to measure the dynamic response from the vehicle; an identification sensor associated with the body and configured to collect data corresponding to the identity of the vehicle; a velocity sensor associated with the body and configured to determine the velocity of the vehicle; and a processing unit associated with the body and configured to evaluate the health of the vehicle based on the dynamic response, the identity, and the velocity. | 09-15-2011 |
20140283527 | MULTI-ENGINE PERFORMANCE MARGIN SYNCHRONIZATION ADAPTIVE CONTROL SYSTEM AND METHOD - A system and method of adaptively synchronizing the performance margin of a multi-engine system includes continuously, and in real-time, determining the performance margin of a first engine and the performance margin of the second engine. A difference between the performance margins of the first and second engines is calculated, and the first and second engines are controlled to attain a predetermined difference between the performance margins of the first and second engines. | 09-25-2014 |
20150081193 | ADAPTIVE REMAINING USEFUL LIFE BALANCING CONTROL SYSTEM AND METHOD FOR MULTI-ENGINE SYSTEMS - A system and method of adaptively managing a plurality of engines in a multi-engine system, where each engine comprises hot gas components and non-hot gas components, and each engine exhibits a performance margin and a remaining useful life, includes continuously, and in real-time, determining a plurality of different degradation mechanisms for each of the plurality of engines, and continuously, and in real-time, determining which of the determined degradation mechanisms is most limiting. The engines are controlled, based on the most limiting degradation mechanism, in a manner that the remaining useful lives of each engine are substantially equal. The plurality of different degradation mechanisms of each engine are determined based on the engine performance margin, modeled failure predictions of the hot gas components, and modeled failure predictions of the non-hot gas components. | 03-19-2015 |
20150346059 | VEHICLE MISSION CAPABILITY PREDICTION SYSTEM AND METHOD - A system method for predicting vehicle mission capability for a vehicle that is propelled by an engine includes collecting engine degradation data for the engine. Location independent engine degradation data are generated from the collected engine degradation data. The location independent engine degradation data are representative of engine degradation that is independent of locations associated with the mission. Predictions of location dependent engine degradation are calculated from the collected engine degradation data and the location independent engine degradation data. The location dependent engine degradation is representative of engine degradation due to movement through locations associated with the mission. | 12-03-2015 |
20160052642 | AIRCRAFT ELECTRIC TAXI HEALTH MANAGEMENT SYSTEM AND METHOD - An aircraft electric taxi health management system includes a right electric motor drivingly connected to at least one wheel on a right landing gear assembly, a left electric motor drivingly connected to at least one wheel on a left landing gear assembly, a right motor controller configured to electrically drive the right electric motor, monitor the right motor current and voltage, and generate right motor signals as a function of the right motor current and voltage; a left motor controller configured to electrically drive the left electric motor, monitor the left motor current and voltage, and generate left motor signals as a function of the left motor current and voltage; and a health management controller configured to compare the right motor signals to the left motor signals; and generate electric taxi system maintenance signals based on the comparison. | 02-25-2016 |
20160055754 | ROTARY-WING AIRCRAFT EMERGENCY LANDING CONTROL - An emergency landing control system for an aircraft includes a landing site data source, a performance margin data source, an engine health data source, an aircraft health data source, and a processor. The landing site data source determines, continuously and in real-time, available landing sites. The performance margin data source conducts, continuously and in real-time, continuous performance analysis of an engine. The engine health data source determines, continuously and in real-time, available engine power as a function of time. The aircraft health data source determines, continuously and in real-time, available aircraft life as a function of time. The processor receives data from these data sources and, based on these data, continuously generates landing paths to one or more of the available landing sites, and selectively and continuously adjusts maximum available engine power up to emergency power limits, as needed, during execution of a landing maneuver to a landing site. | 02-25-2016 |
20160086396 | AIRCRAFT ELECTRIC TAXI SYSTEM DIAGNOSTIC AND PROGNOSTIC EVALUATION SYSTEM AND METHOD - An aircraft electric taxi system diagnostics and prognostics evaluation method, including receiving, with a computer, an electronically recorded first performance parameter of a first electric taxi system of a first aircraft during a taxi operational event at an airport; and comparing the first performance parameter with a first performance factor statistical model generated in response to the first performance parameter and first comparative performance parameters; and calculating a first performance parameter difference based on the comparison. | 03-24-2016 |
Patent application number | Description | Published |
20080289423 | Automated defect detection of corrosion or cracks using saft processed lamb wave images - A system, method and computer program product is provided for automated defect detection of corrosion or cracks using synthetic aperture focusing technique (SAFT) processed Lamb wave images. The method comprises processing the first image using a synthetic aperture focusing technique (SAFT) to enhance a resolution and a signal to noise ratio of a first extracted ultrasonic image, applying a systemic background noise suppression algorithm to the first extracted ultrasonic image to render a second extracted ultrasonic image having reduced noise, and applying a deconvolution linear filtering process to the second extracted ultrasonic image to render a third extracted ultrasonic image. | 11-27-2008 |
20090039864 | WIRELESS CORROSION SENSOR - A wireless corrosion detector includes a surface acoustic wave (SAW) sensor tag. The SAW sensor tag has an output port. At least one electro-resistive (ER) corrosion sensor is coupled to the output port. | 02-12-2009 |
20090261811 | AIRCRAFT ICING SENSOR - An apparatus for detecting the presence of ice includes a sensory circuit including a sensor operable to be coupled to a surface exposed to moisture. The sensory circuit is operable to create an electromagnetic standing wave. A heating element is coupled to the surface and a first transmission line. A first source is coupled to the first transmission line and is operable to inject a driving signal into the first transmission line, the driving signal being operable to drive the heating element. A mixing element is coupled to the sensory circuit and first transmission line and is operable to produce a mixed signal from the driving signal and a measure of the standing wave. A comparator is operable to compare at least one characteristic of the mixed signal with reference data for determining the presence of ice contacting the sensor. | 10-22-2009 |
20110257900 | METHODS AND APPARATUS FOR DIAGNOSING FAULTS OF A VEHICLE - A rubber cleat is instrumented with two triaxial accelerometers to measure the multi-directional response of the cleat due to the forces within the tire footprint of a ground vehicle. The cleat data is used to detect faults in the front and rear suspension in addition to the wheel tire despite variability in the data. This offboard diagnostic technique is proposed to enable condition-based maintenance. | 10-20-2011 |
Patent application number | Description | Published |
20130072332 | Fletching Sleeve System and Method of Application and Manufacture - A disclosed fletching sleeve system and method of application and manufacture includes a fletching sleeve configured to frictionally fit onto an arrow shaft. The sleeve defines glue application holes and channels or cavities on an inner surface thereof adjacent the glue holes. Glue disposed on the arrow shaft at the holes is drawn into conduits formed between the channels and/or cavities with the arrow shaft. The sleeve also comprises three vanes formed integrally with the sleeve as one piece. One of the vanes may comprise a recessed surface to receive a decorating or indicia sticker flush with the vane. A collet application tool comprises two semi-cylindrical fingers extending orthogonally from a handle body, the fingers configured to hold and expand the sleeve as it and the collet are slid over the arrow nock and shaft. A dual core pin method of manufacturing enables forming a straighter sleeve and facilitates draft. | 03-21-2013 |
20140357433 | FLETCHING SLEEVE SYSTEM AND METHOD OF APPLICATION AND MANUFACTURE - A disclosed archery fletching sleeve system and method of application and manufacture includes a fletching sleeve configured to frictionally fit onto an arrow shaft. The fletching sleeve defines glue application holes, slots, slits and channels or cavities on an inner surface thereof adjacent the glue holes to draw an applied glue therein via a capillary effect and/or an accordion bellows pumping effect. Additional slots and/or slits allow the sleeve to elastically stretch like an accordion to fit a wide range of arrow shaft diameters. The fletching sleeve also comprises a stretchable corrugated sleeve body having an outer diameter to tangential to an outer surface of a plurality of alternating longitudinal ridges thereon and an inner diameter tangential to an inner surface of a plurality of alternating longitudinal grooves thereon, the inner diameter configured to stretchably fit the arrow shaft having a diameter greater than and/or equal to the sleeve inner diameter. | 12-04-2014 |
20150113782 | Fletching Sleeve System and Method of Application and Manufacture - A disclosed archery fletching sleeve system and method of application and manufacture includes a fletching sleeve configured to frictionally fit onto an arrow shaft. The fletching sleeve defines glue application holes, slots, slits and channels or cavities on an inner surface thereof adjacent the glue holes to draw an applied glue therein via a capillary effect and/or an accordion bellows pumping effect. Additional slots and/or slits allow the sleeve to elastically stretch like an accordion to fit a wide range of arrow shaft diameters. The system also includes an application tool comprising two or more fingernail-like members configured to have a first end and a second end, the first end configured to have an inside arc and an outside arc orthogonal to a longitudinal dimension thereof, the outside arc configured to slide into a fletching sleeve applied to an arrow shaft slid into the inside arc of the fingernail-like members. | 04-30-2015 |