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Auto-tuning controller using loop-shaping
A method and apparatus for automatically adjusting the gains of a feedback controller while the process continues to run and the controller continues to operate...
ISM band to U-NII band frequency transverter and method of frequency
A frequency transverter (10) and method for enabling bi-frequency dual-directional transfer of digitally encoded data on an RF carrier by translating between a...
Pseudo tunnel junction
The present invention provides for a tunneling magnetoresistive element and a method of reading a logical state of the element. An embodiment of the...
Air-gap insulator for short-term exposure to a high temperature
A packaging system for electronic circuitry is provided. The electronic circuitry may be disposed upon a substrate, which can be encased or otherwise surrounded...
A/C generator rotor test apparatus
An assembly is provided for testing a circuit of a rotor of an AC generator. The assembly includes a base, a rack, a coil housing, one or more coils, and a rotor...
Method and apparatus for determining wear of resistive and conductive
According to one embodiment, the present invention provides a system for determining wear of an electrical element. The system includes a current source, a...
Single directional cable actuated emergency stop device
A cable actuated emergency stop system is disclosed, which includes a housing structure within which a single shaft assembly can be maintained for engaging a...
Amide-based compounds, production, recovery, purification and uses thereof
Methods are disclosed of producing and purifying at least one amide. In accordance with one of the methods disclosed herein, the at least one amide is produced...
Capacitive pick-off and electrostatic rebalance accelerometer having
equalized gas damping
A Micro Electro-Mechanical System (MEMS) acceleration sensing device, formed of a an elongated sensing element of substantially uniform thickness suspended for...
Differential thermal sensors
A sensor includes at least two microsensor chips in a housing. The chips may be arranged as (i) an absolute thermal conductivity sensor by exposing one chip to a...
Current control loop for actuator and method
Systems and methods for providing a current control loop for an actuator. A typical system includes a current command controller setting a command current, the...
Modular electronic housing and assemblies
Modular electronic housing
Electric load management center including gateway module and multiple load
management modules for distributing...
An electrical distribution system is disclosed that includes a gateway module (100) including logic (112) to interface to a vehicle management computer (VMC)...
LAAS ground facility sigma monitor
A 1-sigma pseudorange ground monitor (sigma monitor) is described. The sigma monitor calculates a weighted sum of squared deviations referred to as the...
RF channel calibration for non-linear FM waveforms
A system, method, and computer program product that performs self-calibration of pulse-compression radar signals. The system includes an antenna, a receiver, a...
Precision non-contact digital switch
A switch apparatus, system and method are disclosed herein, including one or more magnetic sensing elements that follow a travel path thereof, and a plurality of...
Offset magnet rotary position sensor
A rotary position sensing system and method are disclosed, including a shaft comprising an offset mounting hole, and a magnet having a magnetic field that is...
Electrical power generation system and method for mitigating corona
A power generation system including a housing defining a cavity and having an inlet for receiving a fluid that is used to cool and pressurize the cavity and an...
Additive dispensing cartridge for an oil filter, and oil filter
An oil-conditioning filter, for use with an internal combustion engine, includes a mechanical filter element and a central additive cartridge, for gradually...
Turbine noise absorber
Exemplary methods, devices and/or system for reducing noise produced by a turbine, such as, a turbocharger turbine. An exemplary exhaust conduit employs material...
Heat exchanger with manifold tubes for stiffening and load bearing
An exemplary heat exchanger includes increased stiffness to prevent buckling of a core. In some examples, an exemplary heat exchanger includes a core and a shaft...
Disposable pressure diaphragm and wireless sensor systems and methods
A disposable and wireless sensor system and method are disclosed. In general, a pressure diaphragm can be connected to one or more reusable Surface Acoustic Wave...
Self-testing and self-calibrating detector
A self-testing and self-calibrating detector utilizing an internally produced reference gas. A detector that is sensitive to a target analyte as well as a...
Methods of forming aluminum-comprising physical vapor deposition targets;
sputtered films; and target constructions
The invention includes a method of forming an aluminum-comprising physical vapor deposition target. An aluminum-comprising mass is deformed by equal channel...
Housing for an electronic circuit module
Low ESL and ESR chip capacitor
A chip capacitor that includes a first and second terminal and a plurality of first and second conductive plates. The first terminal has a first interfacial...
Magnetic field sensor
A spin valve GMR sensor configured in a bridge configuration is provided. The bridge includes two spin valve element pairs. The spin valve elements include a...
Dual use detectors for flow cytometry
An optical alignment system for aligning a light beam with a core flow in a flow stream. The flow stream may have a sheath fluid and a core flow, where the core...
Projection system utilizing fiber optic illumination
An optical illumination, communication, or beam splitting system includes close-packed non-imaging morphing optical elements, beam splitting prisms, output...
State validation using bi-directional wireless link
Building monitoring and control systems including bi-directional radio frequency links between master and remote units wherein the remote units operate in a low...
High speed generator with rotor coil support assemblies secured to
A rotor for a high speed generator is constructed of a plurality of laminations and interlamination disks, which are disposed between each of the laminations. A...
System and method for providing coil retention in the rotor windings of a
high speed generator
A coil retention system for a rotor of a high speed electrical generator, such as an aircraft generator, that uses compliant material to fill variable dimension...
Hall element with segmented field plate
A Hall element is provided with a segmented field plate. Dynamic bias control is applied to the segments of the field plate. In one embodiment, a feedback signal...
Spectrally tunable detector
A spectrally tunable optical detector and methods of manufacture therefore are provided. In one illustrative embodiment, the tunable optical detector includes a...
Low temperature curable materials for optical applications
The invention relates to low temperature curable spin-on glass materials which are useful for electronic applications, such as optical devices. A substantially...
Passive improved air turbine starter lubrication system
A passive ATS lubrication system is provided that includes a starter housing, a receptacle and two valves. The starter housing is adapted to couple to a gearbox...
Multi-stage compressor and housing therefor
A multi-stage compressor and associated compressor housing and method are provided. The housing defines an aperture for receiving a compressor wheel for...
Method and system for optimizing torque in a CMG array
A momentum-control system for a spacecraft is disclosed. The momentum-control system comprises an attitude-control system. The attitude-control system receives...
Dual action inlet door and method for use thereof
An inlet door assembly and method for reducing noise from an auxiliary power unit (APU) contained within an aircraft housing is provided. The inlet assembly...
Dual and hybrid EGR systems for use with turbocharged engine
EGR systems for an internal combustion engine configured to operate using multiple-staged turbochargers, or a pair of single stage turbochargers, to provide...
Internally shock caged serpentine flexure for micro-machined accelerometer
An apparatus and method for sensing accelerations and other forces. The apparatus having a capacitance pick-off force sensor having a proof mass that is...
Apparatus and method for combining light from two or more fibers into a
An apparatus and method for combining light signals carried on a plurality of input fibers onto a single receiving fiber with a high degree of efficiency. The...
High speed optical element switching mechanism
The present invention provides an optical element switching mechanism that overcomes many of the disadvantages found in the prior art. The switching mechanism...
High level message priority assignment by a plurality of message-sending
nodes sharing a signal bus
A system has a plurality of nodes communicating with each other on a serial data path using dominant and recessive signal levels. A dominant signal level sent on...
Method for detecting emitted acoustic signals including signal to noise
A plurality of sensors and a digital adaptive tuning filter bank are used in extracting a desired emitted signal embedded in a noisy environment. By monitoring...
System, method and apparatus for pattern recognition with application to
symbol recognition and regeneration...
The invention provides a technique for pattern recognition that employs a state machine that incorporates a sequence of table-look-up operations. A sequence of...
Multi-stage dynamic braking resistor network
A multi-stage dynamic braking resistor network (23) is provided that includes a plurality of dynamic brake resistors (1a d) for dissipating, as heat,...
Method for reducing harmonic distortion in comb drive devices
Methods of fabricating comb drive devices utilizing one or more sacrificial etch-buffers are disclosed. An illustrative fabrication method may include the steps...
Electromagnetic radiation structure control system
A control system is provided for controlling the shape of a flexible electromagnetic radiation structure. The control system includes a plurality of actuators...