| Patent Number |
Title Of Patent |
Date Issued |
| 5572620 |
Fault-tolerant voter system for output data from a plurality of non-synchronized redundant proce |
November 5, 1996 |
| Disclosed is a data message voter system for data messages from a plurality of loosely synchronized redundant processors. The data message voter system comprises a data receiver associated with each processor for capturing the data message from the processor. In turn, the voter only |
| 5572420 |
Method of optimal controller design for multivariable predictive control utilizing range control |
November 5, 1996 |
| A process control system which includes at least one manipulated variable and at least one controlled variable, provides a method for robust control of a process. Predetermined constraints of the manipulated variables and the controlled variables, and the present values of the manipulate |
| 5572058 |
Hall effect device formed in an epitaxial layer of silicon for sensing magnetic fields parallel |
November 5, 1996 |
| A vertical Hall element is formed within the epitaxial layer of a semiconductor and isolated from other components by a P type isolation diffusion. A position defining diffusion is used to accurately locate a plurality of openings within the position defining diffusion where contact |
| 5569890 |
Sequence switch with forced disconnect mechanism |
October 29, 1996 |
| A forced disconnect sequence switch is provided with a plunger that has two surfaces at its bottom portion. The two surfaces are disposed in planes which are displaced from each other so that cams can be actuated at different positions of travel of the plunger. The cams are sequentially |
| 5569617 |
Method of making integrated spacer for magnetoresistive RAM |
October 29, 1996 |
| In a magnetoresistive random access memory device, a spacer material is deposited at the edges of a memory bit to maintain magnetization at the edges in a direction along the edges. |
| 5567650 |
Method of forming tapered plug-filled via in electrical interconnection |
October 22, 1996 |
| A process for contouring a via formed in a dielectrics whereby a layer of a refractory metal is formed on the dielectric and in the via. The refractory metal layer is removed until a surface of the refractory metal within the via is below the upper surface of the dielectric. An etching |
| 5564810 |
Full color stereoscopic display with color multiplexing |
October 15, 1996 |
| A full color stereoscopic display having polarizers for color multiplexing and effecting three-dimensional full color viewing from a single direct view display. Color polarization of color images provides the basis for discriminating the different perspectives of three-dimensional images |
| 5563727 |
High aperture AMLCD with nonparallel alignment of addressing lines to the pixel edges or with di |
October 8, 1996 |
| An approach for constructing active matrix liquid crystal light valves having very high aperture ratio is described. This is achieved by a burying the pixel addressing elements beneath a planarized array of nearly contiguous pixel electrodes and minimizing the footprint of opaque str |
| 5563705 |
Optical power balancing in interferometric fiber optic gyroscopes |
October 8, 1996 |
| An interferometric fiber optic gyroscope having a wavelength-sensitive splitter which has a splitting ratio that changes according to light wavelength. A feedback circuit indicates any difference that there might be in the intensities of counterpropagating beams in the sensing loop of |
| 5562349 |
Bearing assembly having thermal compensation |
October 8, 1996 |
| A bearing assembly with thermal compensation including a rotor rotatably mounted to a stator by way of a bearing mechanism. The stator and rotor are manufactured from materials having coefficients of thermal expansion substantially different than the coefficient of thermal expansion of t |
| 5561993 |
Self balancing rotatable apparatus |
October 8, 1996 |
| A system for balancing a rotatable member is provided by measuring forces and motion via accelerations at various locations of the system. The forces and moments are balanced through the use of matrix manipulation to determine appropriate counterbalance forces located at two axial positi |
| 5561599 |
Method of incorporating independent feedforward control in a multivariable predictive controller |
October 1, 1996 |
| A process control system having a feedback controller, at least one manipulated variable and one controlled variable with a feedforward loop is provided. Independent feedforward control is incorporated into the feedback controller by defining a feedforward control funnel and a feedba |
| 5559908 |
Method for damping optical fiber on a bias optical phase modulator |
September 24, 1996 |
| A method for damping an optical fiber on a bias optical phase modulator having two optical fiber leads comprises the steps of securing the bias phase modulator, applying a silicone or acrylate type of substance to an outward facing surface of the fiber wound on the bias phase modulator |
| 5559415 |
Integrator management for redundant active hand controllers |
September 24, 1996 |
| A redundant active hand controller system has first and second motors connected to a common shaft. A compensator which differentiates a motor command signal from a first proportional and integral controller, differentiates a motor command signal from a second proportional and integra |
| 5559358 |
Opto-electro-mechanical device or filter, process for making, and sensors made therefrom |
September 24, 1996 |
| The present invention relates to microstructures fabricated from semiconductor material and having a flexible member which is excited into various modes of resonance and in which such resonance is read optically. By coupling the microstructure to a surface or material of interest, a |
| 5557623 |
Accurate digital fault tolerant clock |
September 17, 1996 |
| This invention relates to fault-tolerant real-time clock capable of withstanding n-faults, including Byzantine faults. In particular, the instant invention produces redundant clock signals which have low skew with respect to each other, operate with extremely high accuracy, and can b |
| 5557284 |
Spoofing detection system for a satellite positioning system |
September 17, 1996 |
| A pair of antennae in combination with a GPS signal receiver system is employed for detecting the reception of satellite information signals from a spoofing signal transmitter as opposed to those satellite information signals transmitted aboard each of the satellite vehicles which form a |
| 5557273 |
Magnetic azimuth detector to digital (MAD) converter |
September 17, 1996 |
| An electrical system for converting a magnetic azimuth detector (MAD) signal into a corresponding digital signal. A conversion circuit receives a three-wire signal from the MAD; the three-wire signal is proportional to an angle .theta., which indicates the position of the MAD relative to |
| 5555927 |
Thermostat system having an optimized temperature recovery ramp rate |
September 17, 1996 |
| An adaptive recovery method for a setback thermostat using the intersection of the space temperature with a sloped recovery temperature line which approximates the change in temperature as a function of time during recovery of the temperature controlled space from a setback temperature, |
| 5554843 |
Optical element driving mechanism |
September 10, 1996 |
| An optical element driving mechanism is disclosed wherein an electromagnetic motor positions an optical element such that a laser beam passing through the optical element is focused onto an optical disk media. The optical element can be translated in two axes by energizing coils susp |
| 5553829 |
Solenoid valve with sound dampening feature |
September 10, 1996 |
| A noise dampening feature is provided to a valve by incorporating an annular resilient member in association with the plunger of a solenoid valve. The annular resilient member comprises an annular portion and a series of protrusions extending axially away from the annular portion. A |
| 5552956 |
Electrical equipment housing with a movable door covering a keypad and having a pushbutton for o |
September 3, 1996 |
| A housing for electrical equipment such as an electronic thermostat has a panel in which is a keypad having a number of keys for manual entry of data, and a cover which can be moved into position to cover the keypad. The cover includes a pushrod which passes through a hole in the cover |
| 5550736 |
Fail-operational fault tolerant flight critical computer architecture and monitoring method |
August 27, 1996 |
| A flight critical computer system for an aircraft includes dual independent lanes having two processors in each lane. The first lane has a primary processor and a redundant processor and provides a first command signal. The second lane includes a primary processor and a redundant process |
| 5550516 |
Integrated resonant microbeam sensor and transistor oscillator |
August 27, 1996 |
| At least one microbeam situated on a substrate, having a resonant frequency dependent on the strain on the microbeam which may be affected by the bending of the substrate. The beam or beams have sense and drive electrodes proximate to the beam or beams and form capacitors with a beam |
| 5550373 |
Fabry-Perot micro filter-detector |
August 27, 1996 |
| A monolithically constructed infrared, tunable Fabry-Perot cavity filter-detector for spectroscopic detection of particular substances having an absorption line in the wavelength range from 2 to 12 microns. The filter-detector has a hermetically sealed Fabry-Perot cavity that has a m |
| 5550341 |
Switch mountable to a panel without additional fasteners |
August 27, 1996 |
| A switch is specifically shaped to be retained in position within an apparatus, such as a household appliance, by inserting edges of an opening formed in the sheet material of the apparatus into first and second slots shaped into the housing of the switch. The first and second slots can |
| 5549803 |
Smart fastener |
August 27, 1996 |
| A smart fastener having corrosion detection features. Within the fastener is a corrosion detecting array that receives an electrolyte that corrodes sacrificial materials formed on electrodes of the corrosion detecting array. The materials are the same as those materials which are secured |
| 5549477 |
Integrated aircraft survivability equipment in-flight simulation |
August 27, 1996 |
| An in-flight simulator for an integrated aircraft survivability equipment system controlling radar warning receiver and a radar jammer with countermeasures control provides a training module which emulates the existence of airborne threats. The airborne threats are provided in real t |
| 5548602 |
Method and structure for reflecting 633 nm radiation while eliminating 650 nm radiation in ring |
August 20, 1996 |
| Apparatus for mode discrimination in laser applications. A laser operating at a wavelength .lambda.c may have an undesired mode operating at .lambda.e. Mirrors are constructed such that the loss induced in the undesired mode by the wavelength centering of at least one of the mirrors |
| 5546301 |
Advanced equipment control system |
August 13, 1996 |
| The present invention relates to a control solution development environment coupled to a runtime environment constructed to insulate the control solution designer as well as the developed control applications from both the hardware and the operating system. This insulation frees the desi |
| 5546204 |
TFT matrix liquid crystal device having data source lines and drain means of etched and doped si |
August 13, 1996 |
| An active matrix array for liquid crystal displays which provides for a large aperture ratio. A layer of single crystal silicon is disposed over a glass substrate and etched and doped to form multiple source and drain regions for an array of thin film transistors (TFTs). Multiple gate bu |
| 5545924 |
Three dimensional package for monolithic microwave/millimeterwave integrated circuits |
August 13, 1996 |
| A three-dimensional interconnect package is provided for monolithic microwave/millimeterwave integrated circuits. A mating substrate for receiving an MMIC has transmission lines disposed over its surfaces. The mating substrate mounted substantially vertical in a base substrate which |
| 5543803 |
Fail safe receiver system |
August 6, 1996 |
| A receiver system using antennas which may be effected by reflections or multipath propagation errors wherein the antennas are placed at spaced apart locations and produce outputs which differ due to the difference of locations and which may differ due to the multipath propagation errors |
| 5543667 |
Load control for partially increasing/decreasing power usage |
August 6, 1996 |
| An add/shed load controller which will add/shed or increase/decrease the electrical usage of a load. A maximum decrease limit may be set for analog loads to insure that comfort is not overly affected due to load usage reductions. |
| 5542279 |
Method of incorporating wide tolerance set point potentiometers into devices with fixed orientat |
August 6, 1996 |
| A manufacturing method for control devices which incorporate potentiometers whose resistance characteristics other than linearity are subject to unit-to-unit variations, and in which a wiper positioning knob in cooperation with a fixed scale indicates the set point for the controlled |
| 5541562 |
Apparatus for sensing the closure of a door |
July 30, 1996 |
| An enclosure sensing apparatus is provided which monitors the movement of a key structure relative to a housing structure. The purpose of the device is to determine that a moveable object has moved into an appropriate position relative to a stationary object. First, second and third |
| 5539679 |
Linearization scheme for optical measurement systems |
July 23, 1996 |
| A method and apparatus for correcting errors in an optical measurement system utilizing a lens which may have distortions that would vary as a function of distance, by providing an encoded indication of the distortions of the lens for use by the system operator together with distance |
| 5539261 |
Mechanical alternate action to electrical pulse converter |
July 23, 1996 |
| A fluorescent light control circuit usable with a transformer relay for providing electric current pulses of alternating polarity in response to successive operations of a two position electromechanical switch, the circuit including first and second controllable current paths operable to |
| 5538416 |
Gas burner controller with main valve delay after pilot flame lightoff |
July 23, 1996 |
| A controller for a gas burner system compensates for the tendency of a flame rod sensor in the burner system to on occasion provide a spike in its signal on first lightoff of a pilot flame, by delaying the signal which causes opening of the burner system's main burner valve until the |
| 5538416 |
Gas burner controller with main valve delay after pilot flame lightoff |
July 23, 1996 |
| A controller for a gas burner system compensates for the tendency of a flame rod sensor in the burner system to on occasion provide a spike in its signal on first lightoff of a pilot flame, by delaying the signal which causes opening of the burner system's main burner valve until the |
| 5537253 |
Head mounted display utilizing diffractive optical elements |
July 16, 1996 |
| A head mounted display having an image source, an optical relay system and a combiner for producing an image from the image source to the eye of a pilot in which the optical system includes at least one diffractive surface to compensate for aberrations and distortions in the display. |
| 5536950 |
High resolution active matrix LCD cell design |
July 16, 1996 |
| A transistor panel used for active matrix display devices includes islands of single crystal silicon formed on a transparent quartz substrate and arranged in rows and columns, with an NMOS transistor formed in each island. Each transistor includes source, drain and channel regions and an |
| 5535297 |
Micro-alignment method |
July 9, 1996 |
| A light coupler comprises a light source and a light conductor coupled together by a housing. The housing is permanently deformed to increase light coupling between the light source and the light conductor. |
| 5534111 |
Thermal isolation microstructure |
July 9, 1996 |
| A thermal isolation microstructure fabricated by a process which allows the ultra thinning of support legs for the microdetector. |
| 5533393 |
Determination of dew point or absolute humidity |
July 9, 1996 |
| A microsensor system for determining water vapor content of the ambient atmosphere that uses a thin film suspended ceramic diaphragm structure featuring an embedded, patterned thin film heater, temperature sensor and an external film of an hygroscopic salt stabilized in a water-insoluble |
| 5533161 |
Wrap around fiber optic component package and packaging method |
July 2, 1996 |
| A method resulting in a package for a fiber optic component includes positioning the fiber optic component within a primary protective body. A flat wrappable secondary protective material having an adhesive on one side thereof is then wrapped around the primary protective body a plur |
| 5532922 |
Non-linear control system for a single input single output process |
July 2, 1996 |
| A control system and method for providing a nonlinear response for a single input-single output system. A system output is measured and compared against a predetermined set point. An error signal from this measurement is used to identify an entry in a lookup table. The entry is a control |
| 5530844 |
Method of coupling open systems to a proprietary network |
June 25, 1996 |
| An interface provides a path to transfer data from a proprietary network to an open system. The proprietary network includes at least one module central processing unit (CPU) and a module memory associated therewith operatively connected to the proprietary network. A shared memory and |
| 5530457 |
Partitioned display apparatus |
June 25, 1996 |
| A display apparatus for displaying video information received from a plurality of memory devices. Each memory device is organized as 2.sup.x rows by 2.sup.y columns of memory locations and a plurality of bits deep, where x and y are integers. The display apparatus includes a display |
| 5528715 |
Trimming of fiber optic winding and method of achieving same |
June 18, 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 |
