| Patent Number |
Title Of Patent |
Date Issued |
| 5528707 |
Bidirectional optical modulator having lightwave signal conservation |
June 18, 1996 |
| A modulating optical element having ports wherein either port can output or receive light signals. An electrooptic effect is applied to the optical element to allow the light signals to pass or not pass through the optical element. Due to the electrooptic effect in preventing signals fro |
| 5528172 |
Adjustable voltage level shifter |
June 18, 1996 |
| A voltage level shifter is disclosed having an input and an output. The input receives a first signal capable of fluctuating between at least two voltages. The voltage level shifter produces a second signal, at the output, based on the voltage of the input signal and two or more user |
| 5526260 |
Device executing intervisibility calculation |
June 11, 1996 |
| A device executing intervisibility calculation includes a mechanism executing a radial spoke scan pattern where individual radials are traversed beginning at a threat installation and extending outward along a radial to a distance corresponding to threat range capability. Intervisibi |
| 5526113 |
Method and apparatus for measurement of spatial signal and noise power of imaging systems |
June 11, 1996 |
| A photographic facsimile of a line image at a predetermined orientation is illuminated by a collimated monochromatic light source to produce a diffraction pattern. The Fourier distribution of the diffraction pattern is focussed by a converging lens to image on a spatial frequency plane o |
| 5523759 |
In flight doppler weather radar wind shear detection system |
June 4, 1996 |
| An airborne doppler radar wind shear detection system has a volumetric scanning pattern for providing atmospheric measurement data for individual resolution cells that are formed into a 3-D grid of atmospheric data samples. Volumetric feature extraction modules identify and group res |
| 5523636 |
Electromagnetically controlled gear engagement mechanism integrated with a magnetic hysteresis s |
June 4, 1996 |
| A mechanism for transferring torque from a motor to a gear train through a magnetic hysteresis slip clutch has a feature for disconnecting the motor from the gear train. A cup element of the clutch is carried on a shaft and can be shifted along the shaft's axis. The cup element has a mag |
| 5521817 |
Airborne drone formation control system |
May 28, 1996 |
| In a method and apparatus for remotely controlling a formation of drones. A single drone is chosen as a formation leader. Each other drone in the formation has one other drone in the formation as its leader. A follower drone will sense relative movement parameters as well as inquire of i |
| 5521444 |
Apparatus for transferring electrical power from a stationary device to a rotating device withou |
May 28, 1996 |
| A device for transferring electrical power from a stationary member to a rotatable member is provided by incorporating an air core transformer of which a first coil is rigidly attached to the stationary member and a second coil is rigidly attached to the rotatable member. A power convert |
| 5520533 |
Apparatus for modulating the flow of air and fuel to a gas burner |
May 28, 1996 |
| A burner control system for controlling gas flow to a burner in response to a pressure differential indicative of air flow to the burner, the pressure differential being impressed across a diaphragm which actuates a bleed valve controlling the pressure on one side of the diaphragm actuat |
| 5520026 |
Lid switch actuator |
May 28, 1996 |
| A device is presented which converts longitudinal motion in a first axis to longitudinal motion in a second axis. The device is comprised of a push-rod having an inclined plane. A probe engages the inclined plane causing said push-rod to longitudinally move in the first axis when said |
| 5519413 |
Method and apparatus for concurrently scanning and filling a memory |
May 21, 1996 |
| A method and apparatus for concurrently scanning and filling a memory comprised of at least a first and a second memory partition for use in a video display of the ping-pong type is provided herein. A method according to the present invention includes scanning the first memory partition |
| 5519336 |
Method for electrically characterizing the insulator in SOI devices |
May 21, 1996 |
| A rapid method for determining electrical characteristics of SOI wafers whereby the silicon substrate acts as a gate and tungsten probes make a source and drain connection at the top silicon surface to form a point contact transistor. Drain current is measured as a function of gate v |
| 5519295 |
Electrically operated actuator having a capacitor storing energy for returning the actuator to a |
May 21, 1996 |
| An electrically operated actuator stores power in a capacitor for returning the actuator output element to a preselected position upon power failure. The actuator has a controller having input power terminals connected across the capacitor and control terminals for controlling the power |
| 5518548 |
Deposition barrier |
May 21, 1996 |
| Deposition sources deposit material onto mirrors used in ring laser gyros. The mirrors are placed in a rotating apparatus called a planet which rotates above the deposition sources which emit the material upwards. This operation will result alternating, multiple layers of the differing |
| 5514839 |
Weldable flexible circuit termination for high temperature applications |
May 7, 1996 |
| A termination for a flexible circuit having flat conductive strips integrally bonded to a flexible substrate. The conductive strip has a termination portion located adjacent an aperture in the substrate. The termination portion has a connection tab, with the termination portion and t |
| 5513003 |
Fiber optic gyro digital control with rate extension |
April 30, 1996 |
| A digitally operated fiber optics gyro system in which the 2.pi./SF rate limit has been removed by storing the number of 2.pi. reset that have occurred and combining this with the signal sensed by the light sensor. |
| 5512903 |
Integrity limit apparatus and method |
April 30, 1996 |
| An apparatus and method for determining the hybrid integrity limit of a system which receives inputs from a Global Positioning System Receiver indicative of measurement information, autonomous position information and autonomous integrity limit information and receives inputs from an |
| 5512820 |
Rotational position sensor with a two-part rotatable member to resist jamming |
April 30, 1996 |
| A rotational position sensor is provided with a rotatable member that comprises first and second portions. The first portion is generally cylindrical and has an opening that is shaped to receive the second portion therein with a resilient spring disposed in the annular gap between th |
| 5511427 |
Cantilevered microbeam temperature sensor |
April 30, 1996 |
| Measuring devices employing resonant strain gauges, e.g. pressure transducers or accelerometers, are compensated for variation in temperature by employing a secondary resonant microbeam in combination with the primary microbeam of the strain gauge. The secondary microbeam is mounted |
| 5508928 |
Aircraft survivability system state management |
April 16, 1996 |
| Aircraft survivability system state management is based on system mode, time, altitude, aircraft position, reference radius, and manual aircraft survivability equipment configuration select. The system mode is used with a segment number to begin system configuration sequencing of a segme |
| 5506923 |
Apparatus and method for trimming of fiber optic winding |
April 9, 1996 |
| In a optical fiber coil arrangement for use in rotation sensors, for example, axial and/or radial errors can be reduced or substantially eliminated by employing trimming lengths of the first and second ends of the optical fiber used to wind the coil. The first and second ends are spa |
| 5504686 |
Mission planning costing surface |
April 2, 1996 |
| A mission planning costing surface is formed from digital terrain elevation data of a given geographical region and is for use in routing covert flight paths. To form the costing surface, a hideability map is generated from the digital terrain elevation data by assigning line of sight ar |
| 5504492 |
Look ahead satellite positioning system position error bound monitoring system |
April 2, 1996 |
| A method and apparatus are provided for predicting the position error bound in a satellite positioning system at a future time. The future position of each satellite at the future time is predicted from the trajectory data obtained from each satellite. The predicted position for each sat |
| 5502626 |
High efficiency fluorescent lamp device |
March 26, 1996 |
| Fluorescent lamp energy efficiency is improved by providing geometric formations on the surface to which the phosphor coating is applied. By such geometric formations, a greater oblique surface area is available for receiving a desirably thin phosphor coating such that greater and more |
| 5502502 |
PLL-based method and apparatus for generating video drive signals from various sync formats |
March 26, 1996 |
| Various video signals provide horizontal sync pulses for generating a horizontal drive signal only during a horizontal sync portion and part of the vertical sync portion of a video signal. The invention generates a horizontal drive signal in the absence of horizontal sync pulses through |
| 5502455 |
Method and appartus for producing a symbology display into a night vision system |
March 26, 1996 |
| Apparatus and method for introducing superimposed symbology from a CRT into a dimly lit scene being viewed through a viewing device by utilizing a very small mirror to reflect symbology from the source to the viewing device while minimizing the interference of the reception of light from |
| 5500864 |
Checksum calculation unit and method for error detection on data packets |
March 19, 1996 |
| A high performance transport layer checksum calculation unit and method is described for use in computer data communications systems which provides simultaneous general purpose data movement and checksum calculations. Data must be copied from the main memory of a computer in order to be |
| 5500833 |
Beam position indicator for directional radar |
March 19, 1996 |
| A radar display having particular utility in search and rescue radar systems, employs a computer receiving inputs indicative of aircraft altitude, radar beam tilt angle and radar beam bandwidths to provide signals to the display indicative of where the radar beam intersects the surfa |
| 5500590 |
Apparatus for sensing magnetic fields using a coupled film magnetoresistive transducer |
March 19, 1996 |
| A first magnetically coupled film sensing element and a second magnetically coupled film sensing element are arranged to change resistance in response to a magnetic filed when biased by a current through the elements. A current carrying conductor spaced from the elements sets the magneti |
| 5500589 |
Method for calibrating a sensor by moving a magnet while monitoring an output signal from a magn |
March 19, 1996 |
| A magnetic sensor is provided with a carrier that has a cavity shaped to receive a magnet in sliding association therein. Ribs are provided to guide the movement of the magnet into the cavity and a deformable rib is used to hold the magnet at a precise position determined by an active |
| 5499188 |
Flexible method for building a recipe in a process control system |
March 12, 1996 |
| A process plant has a process control system and a plurality of production lines, each production line having a predetermined equipment configuration. The process control system further includes a controller for interfacing to each production line. The process control system has info |
| 5498900 |
Semiconductor package with weldable ceramic lid |
March 12, 1996 |
| An integrated circuit package for use in radiation environments includes a base and a lid of insulative materials. The base has a recess for receiving a die and a seal ring located on the periphery. The lid has a central insulation portion and an outwardly extending flange which can be |
| 5497823 |
Energy recovery ventilator: means for defrosting heat exchanger medium and damper motor actuatio |
March 12, 1996 |
| In an energy recovery ventilator (ERV) for exchanging indoor air with outdoor air. The ERV having a housing including first and second input ports, and, first and second exhaust ports, and a heat exchanger core. The ERV further having a first blower for drawing indoor air into the ERV |
| 5497133 |
Switch with improved contacts for use in high temperature environments |
March 5, 1996 |
| A switch is made for use in elevated temperatures. A first stationary contact carrier is made of stainless steel and configured to be rigidly attached to a first stationary contact pad that is made of a nickel silver alloy. A second stationary contact pad of fine silver is used as the |
| 5497084 |
Geartooth sensor with means for selecting a threshold magnitude as a function of the average and |
March 5, 1996 |
| A geartooth sensor is provided with a circuit which determined a threshold magnitude as a function of the minimum value of a first output signal from a magnetically sensitive component and an average output signal from a magnetic sensitive component. Circuitry is provided to determine th |
| 5497082 |
Quadrature detector with a hall effect element and a magnetoresistive element |
March 5, 1996 |
| A position sensor is provided with the capability of detecting a quadrature signal by the provision of first and second magnetically sensitive devices. The first magnetically sensitive device comprises a Hall effect element or some other device which is capable of sensing strength of a |
| 5496996 |
Photoelectric device with capability to change threshold levels in response to changing light in |
March 5, 1996 |
| A photoelectric sensor is provided with the capability of calculating a threshold magnitude based on a maximum light intensity received by a light sensitive device. The maximum value of the light intensity is determined during a preselected period of time when no object is blocking the p |
| 5496759 |
Highly producible magnetoresistive RAM process |
March 5, 1996 |
| A process for forming a magnetoresistive bit and an interconnection to an underlying component forms a pattern in an amorphous dielectric overlying the magnetic materials. Portions of the magnetic materials are removed to form a bit having a smooth bit edge profile by ion milling. The bi |
| 5493623 |
PZT fiber optic modulator having a robust mounting and method of making same |
February 20, 1996 |
| A piezoelectric fiber optic phase modulator having a mount at a nodal point of the vibratory system of the modulator. The modulator is excited with an electric field applied in a direction parallel to the axis of the modulator or perpendicular to the radial direction of movement of the |
| 5493396 |
High resolution ring laser gyroscope readout |
February 20, 1996 |
| A high resolution ring laser gyro readout is accomplished by attaching the readout detectors signals to appropriate circuitry that allows a digital signal processor to sample the signals coming out of the readout sensor. The digital signal processor can then provide sufficient processing |
| 5491475 |
Magnetometer vehicle detector |
February 13, 1996 |
| A magnetometer vehicle detector for detecting various parameters of traffic on a roadway. A number of sensors, having a compact package, along with connecting cables, may be placed in road way with a small number of standard width sawcuts. Alternatively, sensors may be placed in the |
| 5489981 |
Microprocessor controlled anglaser gyropower control system |
February 6, 1996 |
| A power control system for a ring laser gyro including a beam intensity readout. A monitor is coupled to the beam intensity readout for generating an intensity signal indicative of the intensity of the beam at an intensity signal output. A signal averager is coupled to the intensity |
| 5489831 |
Pulse width modulating motor controller |
February 6, 1996 |
| A pulse width modulation controller particularly useful for a variable speed variable torque electric motor. Inputs to the controller are a desired RPM signal, a motor electrical signal which is a function of the RPM of the rotor of the motor and its angular position relative to the |
| 5488697 |
Problem state monitoring system |
January 30, 1996 |
| The invention relates to a problem-state monitoring system which includes an automated reasoning technique for providing moment-by-moment advice concerning the operation of a process. The reasoning technique involves the representation of states a problem can attain during the problem |
| 5488296 |
Temperature compensated magnetically sensitive circuit |
January 30, 1996 |
| A magnetic detection circuit is provided which creates a reference signal that varies with temperature in a manner that is generally identical to the temperature induced variation of a Hall element. By providing a temperature sensitive reference signal, the Hall output signal can be |
| 5488294 |
Magnetic sensor with means for retaining a magnet at a precise calibrated position |
January 30, 1996 |
| A magnetic sensor is provided with a carrier that has a cavity shaped to receive a magnet in sliding association therein. Ribs are provided to guide the movement of the magnet into the cavity and a deformable rib is used to hold the magnet at a precise position determined by an active |
| 5486996 |
Parameterized neurocontrollers |
January 23, 1996 |
| A controller based on a neural network whose output is responsive to input signals that represent user or designer defined control system parameters which may include process parameters, control parameters and/or disturbance parameters. The neural network can be "trained" to mimic an |
| 5486920 |
Laser gyro dither strippr gain correction method and apparatus |
January 23, 1996 |
| A sampling method and apparatus for sampling a dither signal includes the step of sensing a number of peak amplitudes P.sub.1, P.sub.2, P.sub.3 . . . P.sub.n each of the number of peak amplitudes having a corresponding times t.sub.1, t.sub.2, t.sub.3 . . . t.sub.n while simultaneously se |
| 5486107 |
Determination of fuel characteristics |
January 23, 1996 |
| A method of determining thermophysical or thermochemical parameters of a fuel gas is disclosed which has wide application both as to applicable fuels and applicable parameters. A relationship has been discovered that allows the determination of many parameters based on a basic relationsh |
| 5485753 |
Piezoresistive silicon pressure sensor implementing long diaphragms with large aspect ratios |
January 23, 1996 |
| A form of pressure sensor diaphragm and method of making that allows for the formation of long rectangular plate structures in semiconducting material, especially Silicon. A plurality or multiplicity of sensors may be constructed on a single chip, thus providing for absolute and relative |
