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Electrolyte with indicator
An electrolyte with an indicator, such as a dye, for detecting leakage from an electrochemical energy storage device is provided. Also provided is a method of...
An HVAC controller with a simplified and/or lower cost user interface. In one illustrative embodiment, the HVAC controller includes two switches, a movable...
Controller system user interface
A thermostat system having dedicated informational regions in a display and associated buttons or softkeys for sequential operation. The system may maximize...
Augmentor flow control with thermal recirculation function using augmentor
A fuel system for a gas turbine engine having at least one augmentor zone which fuel system includes a fuel pump (12) drawing fuel from a fuel tank (10) and...
Portable positioning and navigation system
A navigation system to aid in the navigation through an unknown area. The navigation system includes a plurality of radio frequency identification (RFID) tags,...
Method and system for dynamic collection of flight test data
A method and system for dynamically selecting and retrieving real-time data from a time/space partitioned flight computer system located on board an aircraft....
Method of differential-phase/absolute-amplitude QAM
A method of quadrature amplitude modulation involving encoding phase differentially and amplitude absolutely, allowing for a high data rate and spectral...
Sub-frame synchronized multiplexing
A method of communication that includes transmitting a communication signal having a synchronization preamble from a first node. Setting a local clock of at...
High resolution IOC drive and method for driving fiber optic gyroscopes
Methods and system are provided for driving light through a sensing coil of an optical gyro. The system includes a photodetection circuit having an input for...
Distributed and Cable reduced TCAS
A direction finding antenna system for determining the relative bearing of a second aircraft from a first aircraft in conjunction with a Traffic Alert Collision...
Core-less current sensor
Core-less current sensor comprises two parallel conductors carrying equal currents in the same direction. The magnetic field in mid location of the two parallel...
Process reactor with layered packed bed
Packed bed reactors that have a series of alternating layers of packing. A first packing layer has open body packing elements randomly packed in a layer up to...
Gas sensor calibration system
A portable detector is described for monitoring a gas in an atmosphere. The detector comprises a housing, at least one gas sensor carried by the housing, and...
Diffuser particle separator
A diffuser particle separator may be integrated into a gas turbine engine to remove corrosive dust and salt particles from the engine's core air flow. The air...
Variable nozzle device for a turbocharger
A nozzle device for a turbine of a turbocharger according to the present invention comprises variable annular nozzle (2) defined between an inboard wall (3) and...
Left hand handlebar controller for an all terrain vehicle
Trending system and method using window filtering
A trending system and method for trending data in a mechanical system is provided. The trending system includes a sliding window filter. The sliding window...
Methods and systems for controlling multi-body vehicles with fuel slosh
Methods and systems for controlling multi-body vehicles with fuel slosh are provided. In a method for stabilizing a vehicle with fuel slosh, a controller for a...
Systems and method of datalink auditory communications for air traffic
A system and method for engaging in two-way communication between a pilot and an air traffic controller by speech and hearing processes wherein spoken messages...
Single threshold current surge limiter circuit with disable function
A circuit which limits current to a first value until a predetermined time has elapsed, then permits the current to rise to a second, acceptable value. The...
Voting scheme for analog signals
A voting scheme for analog signals is described. An analog block is replicated to provide three analog blocks that are designed to have substantially the same...
System and method for efficient wide dynamic range coil drive
Methods and systems are provided for driving one or more force coils. A system for driving force coils is provided including a PWM drive coupled to a first coil...
Ablative composite assemblies and joining methods thereof
A cured ablative composite assembly comprises a housing enclosing a pair of ablative composite sub-assemblies joined by a film adhesive. The cured ablative...
Resolver-based wheel speed sensor and method of using same
A method of determining a speed of a wheel that involves providing a resolver having a rotor and a stator which resolver produces at least one output signal,...
Three-wafer channel structure for a fluid analyzer
A three-wafer channel or column structure for a fluid analyzer. The structure may have a support member, membrane, or support wafer containing heaters and...
Integrated power and pressurization system
An integrated power and pressurization management system supplies electrical power and cabin pressurization and cooling air during both airborne and ground...
Multiple-turbocharger system, and exhaust gas flow control valve therefor
A multiple-turbocharger system for an internal combustion engine includes a first turbocharger comprising a first compressor driven by a first turbine, the first...
Zone valve actuator cover
Plugged impulse line detection
A digital signal representative of a difference in pressure is received from a differential pressure transmitter. A noise signal is obtained by processing the...
Automatic tuning method for multivariable model predictive controllers
A fast and reliable technique for tuning multivariable model predictive controllers (MPCs) that accounts for performance and robustness is provided....
System and method for counting cars at night
A vehicle identification system distinguishes vehicles in reduced visibility conditions based on the characteristic projection patterns associated with vehicle...
Integrated attitude altimeter
An aircraft electronics system is provided that includes a radar system, a display, an embedded global positioning/inertial navigation system (EGI) and a...
Methods and systems for reducing interference caused by antenna leakage
In one aspect, a method of radar altimeter operation including a time dependent gain control is described. The method comprises triggering a Sensitivity Time...
System and method for extending universal bus line length
A system and method for recovering a high frequency component of a slew rate controlled signal propagating along a transmission line enables the high frequency...
Lithium-ion battery prognostic testing and process
In accordance with various embodiments, there are systems and methods for predicting end of life of a Li-ion battery. The method can include at least one of...
Gas turbine engine starter generator with AC generator and DC motor modes
A rotating electrical machine, such as an aircraft starter-generator, that may be operated in either a DC motor mode or an AC generator mode. The machine...
Mechanical packaging of surface acoustic wave device for sensing
A method and apparatus, wherein a die is attached to a supporting base structure utilizing a rigid bond adhesive for a SAW (Surface Acoustic Wave) sensor. A...
Electric machine with fluid supply control system
An electric machine includes a fluid control system that is configured to regulate the flow rate of fluid to the electric machine. The machine includes a sensor...
Carbon fiber containing ceramic particles
Small ceramic particles (e.g., of TiC) are incorporated into fibers. The ceramic particles enhance the friction and/or wear properties of a carbon-carbon...
Apparatus and method for removing sulfur containing compounds from a
post-refinery fuel stream
Disclosed are fuel filters and process for removing sulfur-containing compounds from a post refinery fuel stream. In one embodiment, the disclosed process...
Ice protection system and method including a plurality of segmented
sub-areas and a cyclic diverter valve
An ice protection system and method of implementing ice protection for a vehicle includes a plurality of segmented sub-areas each including a leading edge...
Device for transporting and/or storing
The present invention relates to a device for transporting and storing of a powder or liquid medium, comprising (a) a structurally stable outer container having...
Apparatus and method for modeling relationships between signals
A projection is associated with a first signal and a second signal. The second signal includes a first portion associated with the first signal and a second...
Video based fire detection system
A fire detection system has a video sensor, a processor, and a database. The database has a statistical model representing the characteristics of a fire. The...
System and method for color measurements or other spectral measurements of
A system and method for color measurements or other spectral measurements of a material are provided. An illuminating device generates light for illuminating a...
A backdraft detector incorporates at least one oxygen sensor in combination with a flow sensor. Both sensors are coupled to control circuitry which evaluates...
Method and device for storing and distributing information in an RFID tag
An RFID tag has a memory, an RF transceiver that supports long range RF communications with a long range reader, and an interface that supports short range...
Antenna reconfiguration verification and validation
A method of testing the electrical functionality of an optically controlled switch in a reconfigurable antenna is provided. The method includes configuring one...
Circuit for monitoring batteries in a parallel configuration while under
The invention includes a circuit to monitor batteries arranged in a parallel battery configuration for charge/discharge battery circuit operation. The circuit...