| Patent Number |
Title Of Patent |
Date Issued |
| 5132893 |
Voltage supply circuit |
July 21, 1992 |
| In order to provide a voltage supply circuit with high efficiency, high control quality and with optimum utilization of the present energy the circuit comprises in combination a switching controller and a longitudinal voltage controller and a static starter circuit is provided, which |
| 5131837 |
Backup trial for ignition timer |
July 21, 1992 |
| A gas valve control system including a microprocessor, a first relay, a second relay, flame sensor and a timer. The timer is connected to the switch which is connected in the power supply path of the second relay. The second relay is connected to the valve. Activation of the first relay |
| 5131750 |
Eigenfrequency phase shift control loop |
July 21, 1992 |
| A fiber optic rotation sensor having a pair of light beams counterpropagating in a loop includes a phase modulator for modulating the waves at a first frequency, upon exiting the loop the waves are combined into a light intensity signal indicative of rotation rate and is sensed. A si |
| 5131236 |
Air handling system utilizing direct expansion cooling |
July 21, 1992 |
| A system for controlling the operation of an HVAC system which includes a direct expansion coil, a condenser, a pre-cool coil, and a control system. The control system includes a controller and sensors. The controller receives signals indicative of air flow through the direct expansion c |
| 5130760 |
Bidirectional surge suppressor Zener diode circuit with guard rings |
July 14, 1992 |
| A semiconductor device is provided for use as a bidirectional surge suppressor circuit. It incorporates doped regions of substrate and epitaxial layers which result in a dual Zener diode arrangement having the Zener diodes associated in an opposite polarity arrangement. The semicondu |
| 5128883 |
Method for absolute position determination of multi-speed devices |
July 7, 1992 |
| In a system for controlling or monitoring an object, wherein a position of the object must be determined, the system includes a first and second multispeed sensor, the first sensor having a speed of N and the second sensor having a speed of N-1. A method for determining the position of t |
| 5128874 |
Inertial navigation sensor integrated obstacle detection system |
July 7, 1992 |
| A system that incorporates inertial sensor information into optical flow computations to detect obstacles and to provide alternative navigational paths free from obstacles. The system is a maximally passive obstacle detection system that makes selective use of an active sensor. The activ |
| 5128794 |
Scanning laser helmet mounted sight |
July 7, 1992 |
| A scanning laser helmet mounted sight that determines helmet or sight position from externally mounted light sources and detectors. No electronics, including light sources and detectors, are on the helmet. Also, no electrical cables or mechanical linkage is connected to the helmet. T |
| 5127624 |
Threaded sleeve assembly |
July 7, 1992 |
| An improved solenoid valve wherein the improvement is an improved sleeve assembly. The sleeve assembly is a tubular section having an enlarged first end integrally formed with the remainder of the tubular section and having a second end. The enlarged end is formed with external threads |
| 5127016 |
Life extending gas capsule for ring laser gyroscope |
June 30, 1992 |
| The life expectancy of a ring laser gyroscope has been greatly extended by the addition of a gas capsule (24) which holds a large quantity of lasing gas at high pressure in a very small volume. The gas is selectively admitted to the triangular tunnel (12) through a membrane (32). In a |
| 5126920 |
Multiple integrated circuit interconnection arrangement |
June 30, 1992 |
| A flexible chip interconnection includes a flexible film having interconnection lines formed on opposite sides thereof, with selected of the interconnection lines from one side connected by through-film conductors to interconnection lines on the other side. Insulating layers cover bo |
| 5126865 |
Liquid crystal display with sub-pixels |
June 30, 1992 |
| A half-tone pixel having subpixels and control capacitor constituting a 100 percent optically active pixel. The subpixel design results in no reductions in the maximum pixel aperture ratio, brightness or contrast, as a pixel with no subpixels would have. Various subpixel layouts includin |
| 5125275 |
Pressure sensor package |
June 30, 1992 |
| A pressure sensor package, having a dual-in-line package (DIP) structure as commonly used in the semiconductor industry, comprises a first layer of predetermined material, having at least one internal passage for transmitting a fluid under pressure from a first surface of the first l |
| 5124762 |
GaAs heterostructure metal-insulator-semiconductor integrated circuit technology |
June 23, 1992 |
| Heterostructure metal insulator semiconductor integrated circuit technology resulting in, for instance, GaAs field-effect-transistors having much less gate current leakage and greater voltage range than like technology of the related art. |
| 5122756 |
Linearization of a sensing bridge circuit output |
June 16, 1992 |
| The output of a condition sensing bridge is linearized by providing a feedback from the output to the bridge supply which feedback is in the linear form of V.sub.B =KV.sub.O +V.sub.X where V.sub.B is the bridge supply voltage, K is a proportionality constant, V.sub.O is the bridge ou |
| 5121987 |
Method and apparatus for measuring coefficient of thermal expansion |
June 16, 1992 |
| A method and apparatus for optically measuring coefficient of thermal expansion includes an optical dilatometer system. The system provides a housing having a chamber defined therein and a transparent end adapted for receiving a focused laser beam into the chamber. The housing is adapted |
| 5121880 |
Mode selector for a heating system controller |
June 16, 1992 |
| A heating system controller is suitable for controlling a heating system based on a plurality of sensed control signals representing control parameters. The heating system controller has a first input suitable for being coupled to provide a control signal. The heating system controller |
| 5121289 |
Encapsulatable sensor assembly |
June 9, 1992 |
| An encapsulatable sensor assembly includes an external housing with internal support components for retaining an active sensor element and associated electrical circuitry in a predetermined relationship while providing a plurality of internal sequentially interconnected cavities for |
| 5121030 |
Absorption filters for chlor display devices |
June 9, 1992 |
| A contrast enhancement filter for color displays, particularly adapted for color CRT tubes of the shadow mask type. A transparent plate has applied thereon absorptive areas, each area dyed with a primary color corresponding to the color dots of the CRT display face and a plurality of |
| 5119231 |
Hybrid diffractive optical filter |
June 2, 1992 |
| A hybrid filter having an inherently planar interference stack adhered to a nonplanar diffractive grating. The filter can have a planarization layer between the stack and grating. The hybrid filter has a spectral light transmittance value that is at least equal to or greater than the |
| 5119166 |
Hall effect element aligned to reduce package-induced offsets |
June 2, 1992 |
| Disclosed is a Hall effect element formed in a single crystal semiconductor chip with the direction of bias current flow aligned parallel with the <100> cyrstallographic direction and also parallel with edges of the chip. The orientation described is selected to minimize piezoresis |
| 5118963 |
Symmetrical controlled switching circuit |
June 2, 1992 |
| A switching circuit is disclosed which provides a plurality of switches which can be caused to open or close, a controller which can selectively draw current from a plurality of power sources connected in electrical communication with the switches and isolating devices connecting the |
| 5117178 |
Fail-safe load power management system |
May 26, 1992 |
| An electric power consuming system such as the lighting in a building has local control units for adjusting the power consumed by a preselected load or loads associated with each local control unit. The control units generate a selectable control voltage which has a first range specifyin |
| 5115968 |
Method and apparatus for controlling a heating/cooling system based on a temperature error |
May 26, 1992 |
| A temperature control system has a thermostat which provides an on/off signal. The on/off signal has an on period and an off period and is indicative of a temperature error. The temperature control system is suitable for controlling temperature control equipment. The on/off signal is |
| 5115509 |
System for predetermining numerical value as a result of non-linear accumulation of detent signa |
May 19, 1992 |
| The detent signals produced by the rotation of a selector switch knob are counted and stored in a first register, the contents of the register including a sign position designating the direction of rotation of the selector switch knob. The contents of the first register are periodically |
| 5115477 |
Image recognition edge detection method and system |
May 19, 1992 |
| A system and method for delineating the edges of an object in an image frame formed of a two dimensional array of pixels represented by a plurality of gray scale values representing the gray scales of the pixels. A reference contrast level based on the distribution of contrast levels |
| 5115291 |
Electrostatic silicon accelerometer |
May 19, 1992 |
| A solid state accelerometer having an all silicon sensor for measuring accelerational and gravitational forces. The accelerometer measuring system also has associated electronics that include an analog rebalance loop and a digitizer loop. |
| 5115247 |
Frequency modulated, phase coded radar |
May 19, 1992 |
| A radar ranging system is disclosed which employs a frequency modulated and phase coded transmission signal which can have up to a 100 percent duty cycle and which performs time tracking of the radar target and does not require extreme accuracy in frequency modulation, or extreme receivi |
| 5115129 |
Photoelectric device with a lens formed in its housing |
May 19, 1992 |
| A photoelectric device is provided which incorporates a one piece housing having a first end which is light transmissive and liquid impermeable. An opening is provided at the other end of the tubular structure for insertion of photoelectric and electronic components into the cavity of |
| 5115106 |
Momentary "on" switch suitable for keyboards |
May 19, 1992 |
| A momentary contact switch suitable for use in an electrical keyboard has cylindrical projections projecting from a baseplate with axial bores into which projections of the keys fit and by which are guided and retained. A resilient boot interposed between each key and the baseplate and |
| 5114610 |
Solubilizing polymers with an organic solvent system |
May 19, 1992 |
| Solubilizing macromolecules including rigid chain and ladder polymers with Lewis acids dissolved in aprotic organic solvents. The resulting isotropic or anisotropic solutions are useful for producing films, coatings, fibers, and other forms of the macromolecules. |
| 5113290 |
Sealed focusing assembly for an industrial vision system |
May 12, 1992 |
| A sealed focusing assembly for an industrial vision system according to the present invention is comprised of a main housing in threaded contact with an adjustment ring, and in rotatable contact with a lens sleeve. An O-ring functions to frictionally prevent the lens sleeve from rotating |
| 5113285 |
Full color three-dimensional flat panel display |
May 12, 1992 |
| A full color liquid crystal flat panel display having a step waveplate providing one-quarter and three-quarter wave phase retardation to alternating rows which provide left and right views. The result of right and left are circular polarized in opposite directions which two a viewer |
| 5112010 |
Air dryer using ambient cold |
May 12, 1992 |
| A system for pressurizing an electronic enclosure, such as for example a waveguide located in an unheated, unpressurized region of an aircraft, uses air from a pressurized, heated region of the aircraft and a chiller comprised of a lightweight, thermally conducting body thermally coupled |
| 5110748 |
Method for fabricating high mobility thin film transistors as integrated drivers for active matr |
May 5, 1992 |
| High mobility thin film transistors for fabricating integrated drivers for active matrix displays and a special method of fabrication for obtaining the thin film transistors having mobility sufficiently high enough as drivers operable in the several megahertz frequency range needed for |
| 5109205 |
Millimeter wave microstrip shunt-mounted pin diode switch with particular bias means |
April 28, 1992 |
| A millimeter wave microstrip shunt-mounted PIN diode switch having its DC ground separate from RF ground is created by utilizing a fan structure (radial stub) having a radius of approximately one-quarter wavelength to provide an RF ground at that location and then coupling the DC bias |
| 5109204 |
High power RF precision attenuator |
April 28, 1992 |
| A precision variable attenuator includes quadrature hybrid circuits, each having a first pair of isolated ports corresponding to the input and output ports of the attenuator. The second pair of isolated ports each are terminated with variable impedances in a manner to provide equal r |
| 5108072 |
Variable pressure electrically operated valve with an adjustable stroke-limiting mechanism for t |
April 28, 1992 |
| The moving coil actuator of a pressure regulator has two threaded adjustment screws each mounted parallel to the actuator's path and which project through a limit surface of a carrier for the moving oil actuator. Both adjusting screws can be rotated by means of a tool, but their moun |
| 5107309 |
Double diffused leadout for a semiconductor device |
April 21, 1992 |
| A structure and a device which allow low resistance connections to internal circuit devices comprising a double diffused leadout is described. The first leadout diffusion is lightly doped with dopant from either chemical group III or V to constitute N- or P- type material respectively. T |
| 5107268 |
Method of multipath track reduction in an aircraft tracking system |
April 21, 1992 |
| In a Traffic Alert and Collision Avoidance System (TCAS), response to interrogations can result in normal, multipath (image), and mixed multipath (potential image) tracks. The method for reducing the number of false tracks includes the steps of selecting a track to be updated from an |
| 5105366 |
Comfort control system and method factoring mean radiant temperature |
April 14, 1992 |
| A comfort control system and method which determines the operating temperature set point for the environment to be controlled, in part by indirectly measuring the mean radiant temperature of the environment. A temperature sensor and relative humidity sensor sense the environment to b |
| 5105167 |
Harmonic injection amplifier |
April 14, 1992 |
| An amplifier having band pass filters and resonators for injecting, mixing and downconverting, i.e., recycling, second and third harmonics to increase the amplifier's efficiency. Various aspects of amplifier design are developed for enhancing efficiency. |
| 5105144 |
Driver for field effect transistor |
April 14, 1992 |
| An MOS FET pass element for a switching voltage regulator is driven by a dual voltage booster configuration. The pulse width modulator of the regulator provides a two-phase logic signal for alternately energizing and charging each booster. Each booster is comprised of a capacitor charged |
| 5102213 |
Narrow band selective absorption filter |
April 7, 1992 |
| 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 in a vacuum system to randomly disperse dye molecules in a solid dilutant. The dyes are selected to absorb at the wavelengths of |
| 5101639 |
Air handling system utilizing direct expansion cooling |
April 7, 1992 |
| A system for controlling the operation of an HVAC system which includes a direct expansion coil, a condenser, a pre-cool coil, and a control system. The control system includes a controller and sensors. The controller receives signals indicative of air flow through the direct expansion c |
| 5101550 |
Removable drop-through die bond frame |
April 7, 1992 |
| A method and apparatus for accurately positioning a semiconductor chip onto a die bond pad region of a semiconductor package. A frame is constructed for slidable contact with peripheral walls of a semiconductor package die cavity. A frame central aperture with a wide upper opening and a |
| 5100439 |
Fastening means for electronic air cleaner cells |
March 31, 1992 |
| A fastening means for an electronic air cleaner. The air cleaner containing an air cleaner collector section. The air cleaner collector section is a series of high voltage and low voltage plates which are held by cell expansion tubes. On either end of the air cleaner collector section, e |
| 5100235 |
Laser-ring gyro beam intensity monitor |
March 31, 1992 |
| RLG beam intensity monitor in which the beam intensity information is derived from the a.c. output of the RLG angular rate sensor. |
| 5099412 |
Automatic control of a discrete system with redundancy management and prioritized conflict resol |
March 24, 1992 |
| A computer control system in which each input condition to which the system must respond is defined and a priority value assigned thereto. Desired system resource conditions called attributes herein corresponding to each input are determined. System resource states or attributes for all |
| 5099306 |
Stacked tab leadframe assembly |
March 24, 1992 |
| Disclosed is a stacked leadframe assembly for use with integrated circuit chips. The assembly comprises multiple leadframes arranged in stacked relation. Each leadframe comprises conductive elements and solder bumps for electrically and mechanically connecting selected conductive element |
