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Ion-beam deposited multilayer waveguides and resonators
An optical waveguide is formed by depositing multiple layers of thin films using the process of ion beam sputter deposition. The waveguide is made up of...
Absolute pressure sensor and method
A sensor that provides absolute pressure independent of the composition of the measured gas includes a large microbridge used to determine the thermal...
Single magnet latch valve with position indicator
An actuator is provided with a position sensing system which comprises a permanent magnet, a saddle plate, a sole plate and the magnetically sensitive component....
A voltage regulator circuit is provided for a sensor that is connected in a two-wire scheme to a circuit comprising a power supply and a load. The circuit...
Cross-monitored pair of clocks for processor fail-safe operation
A system for operating a pair of microprocessors with independent system clocks while at the same time providing synchronization by a common interrupt signal,...
Method for allocating processing elements interconnected in a hypercube
The efficient allocation and deallocation of computer processors interconnected in a binary hypercube topology facilitated by the use of address masks or cube...
Receding horizon based adaptive control having means for minimizing
Disclosed is an adaptive and predictive controller having self tuning capabilities. The receding horizon window and sample interval are determined by the tunning...
A two-level IR detector imaging array of high fill-factor design. The upper microbridge detector level is spaced above and overlies the integrated circuit and...
Asymmetrical data tracking digital phase locked loop
An improved asymmetrical data tracking digital phase locked loop including separate baud rate counters for both the positive data pulse edge and the negative...
Laser gyro high voltage start module and high voltage pulse generator
A high voltage start circuit includes a high voltage start module and high voltage pulse generator apparatus. The high voltage pulse generator amplifies a five...
Cross projection visor helmet mounted display
A helmet mounted display utilizing a pair of image sources mounted low on the helmet of a pilot and projecting an image across in front of the pilot's face to...
Integrated heterostructure acoustic charge transport (HACT) and
heterostructure insulated gate field effects...
A monolithic integrated circuit device combines integrated heterostructure acoustic charge transport (HACT) devices and heterostructure insulated gate field...
Soldering tool with attached thermocouple
A soldering tip is provided with a protrusion extending from its operative region to permit an opening to extend therethrough. Thermocouple wires are disposed in...
RFOG rotation rate error reducer having resonator mode symmetrization
An error reducer for reducing rotation rate errors, arising because of polarization modes coupling and differing polarization modes characteristics associated...
Polymer capacitative moisture sensitive device comprising heating means
A moisture sensitive device includes a polymer capacitive moisture sensitive element and a heater. The polymer capacitive moisture sensitive element is formed by...
Thermal conductivity detector
A thermal conductivity detector includes a thin diaphragm, a heat-generating portion, and a pair of boundary holes. The thin diaphragm is obtained by forming a...
Refrigeration pull-down technique
Apparatus for and method of rapidly bringing a controlled space to a desired temperature. The technique is particularly applicable to the maintenance of...
Facility management apparatus having touch responsive display screens
A facility management apparatus includes a display unit for designating a facility system and selectively displaying a corresponding individual facility system...
High resolution resistor ladder network with reduced number of resistor
A resistor network is provided which significantly reduces the total number of resistors required to achieve a given resolution. It comprises a cell of resistors...
Thin film pyroelectric imaging array
A thin film pyroelectric imaging array fabricated as a Si wafer. A thin film of PbTiO.sub.3 is deposited on a thermally isolated bridge. The bridge suspends the...
A diaphragm-type sensor is disclosed which comprises a substrate including a cavity, a diaphragm formed on the cavity and supported by the substrate, a heater...
Servo coupled hand controllers
A servo controlled system is provided for electrically coupling the motions and applied forces of pilot and co-pilot control sticks. Servo-coupling between the...
Multi-purpose user interface panel
Detachable thermostat knob
Fiber optic gyroscope modulation error reduction
An error control arrangement for an optical fiber rotation sensor having electromagnetic waves propagating in opposite directions passing through a bias optical...
A process for removing corrosive by-products from a circuit assembly
The invention is a process for removing corrosive by-products from semiconductor assembly by applying an aqueous spray comprising a saponifying agent to release...
Polygon sort engine
A polygon sort engine including first and second apparatus for sorting. The first apparatus for sorting receives planar, externally convex polygon vertices from...
Complementary threat sensor data fusion method and apparatus
A complementary threat sensor data fusion capability for an aircraft survivability equipment system. A set of aircraft survivability sensors provides a threat...
Microstructure design for high IR sensitivity
A microstructure design for high IR sensitivity having a two level infrared bolometer microstructure, the lower level having a reflective metal film surface such...
System for inhibiting quenching of laser beams in response to radiation
The present invention inhibits quenching of a laser following a radiation event by providing a radiation sensing arrangement connected to the discharge current...
Fiber optic gyroscope bias modulation amplitude determination with reset
A bias modulation amplitude monitoring system for a rotation sensor having a pair of output signal component detectors to provide magnitudes of the corresponding...
Switch with moveable carrier and moveable contacts attached thereto
A switch is provided with a moveable contact and contact carrier that significantly facilitates the manufacturing process necessary to make the assembly. The...
High mobility integrated drivers for active matrix displays
High mobility thin film transistors for fabricating integrated drivers for active matrix displays and a special method of fabrication for obtaining the thin film...
Fixture for backside wafer etching
A fixture which includes a lower base for supporting and protecting the front surface of a semiconductor wafer and a clamp. The lower base has an upper end...
Directional diffuser for a liquid crystal display
A display apparatus including a light source, a liquid crystal panel, and one or more directional diffuser lens arrays disposed therebetween provides a tailored...
Method of improved initial transmission of acquisition and tracking
interrogations in an aircraft tracking system
In an aircraft having an aircraft tracking system (ATS), the aircraft being a monitoring aircraft, the monitoring aircraft interrogates target aircraft in the...
Mechanism with damper to prevent overtravel upon sudden release
A damper is provided for a switch mechanism to prevent overtravel in response to a snap-release of a plunger when it is fully depressed. If no precautions are...
Mass airflow sensor
A mass airflow sensor is provided with a system of conduits and ports which connect the mass airflow sensor to a main fluid flow channel. Pairs of ports connect...
Real-time economic load allocation
The method allocates a demanded amount of power to a plurality of power output apparatus, each power output apparatus having a cost curve associated therewith,...
Capacitive pressure sensor and method of manufacturing the same
In a capacitive pressure sensor and a method of manufacturing the same, first and second grooves are formed in one and the other surfaces of a substrate,...
Resonant gauge with microbeam driven in constant electric field
A resonant strain gauge includes a silicon substrate, a polysilicon flexure beam attached at both ends to the substrate, and a polysilicon rigid cover ...
Calibrated physical parameter value measurement system
A circuit for measuring a parameter value by measuring the time required to charge a capacitor in a sensor RC circuit from a first to a second voltage includes a...
Self correcting time base for inaccurate oscillators
An apparatus and method for providing a microprocessor having an inaccurate oscillator with a desired time base. The cycles of the output signal of the...
Terrain referenced navigation electromagnetic-gravitational correlation
A terrain reference navigation system for an aircraft, surface vessel or subsurface vessel utilizing three sets of geo-physical correlation data. A kalman filter...
Gas discharge device current control circuit
A low voltage comparator circuit is utilized for comparing the current flowing into and out of one of the electrodes of a gas discharge device with a preselected...
Self-adjusting recovery algorithm for a microprocessor-controlled
A recovery algorithm for a setback thermostat uses the intersection of the space temperature with a sloped recovery temperature line which approximates the...
Narrow band selective absorption filter
A solid state form of a dye-solution absorption filter is disclosed. Physical vapor depositable (i.e., evaporable) dyes are codeposited with a polyester matrix...
Vibratory bowl feeder with automatic clean out function
A vibratory bowl feeder is provided with an automatic cleanout feature which comprises an opening formed in the bottom surface of a vibratory bowl proximate a...
Electrical connector incorporating EMI filter
An electrical connector receptacle for allowing connection of electronic apparatus contained within a shielded enclosure to a multi-conductor wiring harness...
Method of reducing false tracks due to suppression pulse replies in an
aircraft tracking system
In an aircraft which has a tracking system, the aircraft interrogates all target aircraft in the vicinity of the aircraft in order to determine potentially...