| Patent Number |
Title Of Patent |
Date Issued |
| 5336923 |
Varactor diode having a stepped capacitance-voltage profile |
August 9, 1994 |
| A varactor diode having a stepped capacitance-voltage profile, formed in heterostructural integrated circuit technology. Several layers in the diode structure have pulse doping to confine conduction in the diode to a sheet of charge that provides the stepped capacitance-voltage profile. |
| 5336861 |
Switch with removable button frame |
August 9, 1994 |
| A switch is provided with a button frame which has two openings and two associated cam surfaces. A pivot pin can be assembled with a support structure and the button frame can be assembled onto the pivot pin by distorting the button frame. One end of the pivot pin is first inserted i |
| 5335181 |
Terrain referenced navigation--woods data base model |
August 2, 1994 |
| A terrain referenced navigation system utilizing a woods database model including a method for increasing terrain referenced navigation accuracy by compensating for the existence of deciduous forests. Deciduous forests present increased terrain referenced navigation inaccuracies during m |
| 5335063 |
Laser path length control reset acceleration circuit |
August 2, 1994 |
| A ring laser angular rate sensor apparatus includes ring laser apparatus for generating a pair of counter-propagating laser beams about a closed-loop path where the laser beam intensity varies as a function of drive voltage. Path length control apparatus including a transducer drive |
| 5334811 |
Switch with laminated cover |
August 2, 1994 |
| A switch housing is made with a laminated cover that comprises an inner plate, an outer plate and a metallic sheet that is disposed therebetween. The metallic sheet is formed with a raised portion that defines a raised surface that is a deformable membrane. The protrusion formed in the |
| 5333298 |
System for making data available to an outside software package by utilizing a data file which c |
July 26, 1994 |
| A computer system, having external peripherals, includes an operating system and application packages residing therein. Data exchange logic permits an outside application package (generated by a third party to perform a predefined application function in a general purpose computer en |
| 5333284 |
Repeated ALU in pipelined processor design |
July 26, 1994 |
| A six-stage pipeline processor comprised of the sequential stages: instruction fetch; instruction decode; first full ALU; second full ALU; Fill Register; and Write Back Register. Memory addresses are calculated in the first ALU stage and this stage presents the address along with a read |
| 5332070 |
Three parameter viscous damper and isolator |
July 26, 1994 |
| A vibration isolation apparatus having a shaft with an axis therethrough. The shaft has a first and second end. A piston having an axial bore is coaxially positioned with the shaft to provide a damper by forming a damping path between the piston and the shaft. A flange extends radially |
| 5331562 |
Terrain referenced navigation-adaptive filter distribution |
July 19, 1994 |
| A terrain referenced navigation system utilizing a five-state kalman filter with a filter distribution based on a fixed grid approach. The five-state kalman filter utilizes an aircraft's altitude, East velocity, East acceleration, a South velocity and South acceleration. The database of |
| 5331505 |
Multi-coplanar capacitor for electrical connector |
July 19, 1994 |
| A multi-coplanar, multi-layer capacitor array for use as an RFI filter associated with an electrical connector module having a pattern of pin and socket connections includes a multi-layer board structure of super imposed layers including ground plane layers and capacitor layers interleav |
| 5331402 |
Dither signal remover for a dithered ring laser angular rate sensor utilizing an adaptive digita |
July 19, 1994 |
| Disclosed is an apparatus for removing the dither signal component from a dithered ring laser gyro output. Corresponding numerical representations of the gyro readout signal, a dither reference signal representative of the dithering of the sensor, and a corrective sensor output are store |
| 5331177 |
Turbidity sensor with analog to digital conversion capability |
July 19, 1994 |
| A turbidity sensor is provided with a light source and a plurality of light sensitive components which are disposed proximate a conduit to measure the light intensity directly across the conduit from the light source and at an angle therefrom. The conduit is provided with a plurality of |
| 5331150 |
Photoelectric sensor with variable light pulse frequency |
July 19, 1994 |
| A photosensor is provided with a control circuit that is capable of varying the frequency of light pulses which energize a light source of the sensor. When four consecutive light pulses result in an identical status of a light sensitive component, the frequency of light pulses is slowed |
| 5329355 |
Dither stripper to leave base motion |
July 12, 1994 |
| Readout signals of a dithered ring laser inertial integrating rate sensor are processed by a signal combining circuit which forms part of a closed loop scheme for removing the dither signal other than the base motion component thereof. The output of the signal combining circuit has a |
| 5329273 |
System controller and remote fault annunciator with cooperative storage, sharing, and presentati |
July 12, 1994 |
| An annunciator for the conduction status of individual switches wired into a series circuit records this status as status history at regular intervals in a memory. The status history is preferably recorded as individual entries having the identification number of an open switch along |
| 5328582 |
Off-axis magnetron sputter deposition of mirrors |
July 12, 1994 |
| A magnetron sputtering apparatus can be used to achieve high quality coating on substrates if the substrates are positioned adjacent to the sputtering target. Furthermore, the coating can be enhanced if the substrate is rotated in a planetary manner about the sputtering target. This |
| 5327785 |
Pressure sensor with improved heat dissipation characteristics |
July 12, 1994 |
| A pressure sensor is provided with a means for efficiently removing heat from a circuit portion of a sensor die by providing an elastomeric member between a first surface of the sensor die and electrical leads. A thermally conductive, but electrically insulative, portion of the elast |
| 5327213 |
Configuration control of mode coupling errors |
July 5, 1994 |
| An optical fiber rotation sensor having configurations thereof chosen with respect to the source autocorrelation. Both amplitude related and intensity related phase errors due to polarization mode coupling can be eliminated or reduced economically. |
| 5326968 |
Photoelectric sensor with a circular polarizing lens attached to its housing |
July 5, 1994 |
| A photoelectric sensor is adapted for use in specific applications which require the additional attachment of a circular polarizer. A piece of circular polarizer material is general disc-shaped with two planar surfaces and a peripheral circular surface. The outer periphery of the dis |
| 5326163 |
Dither apparatus |
July 5, 1994 |
| A dither motor reed apparatus for use in a dither motor which includes a hub member and an outer support housing. The dither motor reed apparatus has a robust inner section having a hub end and a first joining end and an outer section which is more limber than the robust inner section. T |
| 5326073 |
Valve with cylindrical metering device |
July 5, 1994 |
| A valve is provided with a throttle member that is capable of metering the flow between a bore channel of the valve and a port extending between the channel and an external location. The throttle member, or metering device, is a partial cylinder formed to include a plurality of deformati |
| 5325175 |
Solid-block homodyne interferometer |
June 28, 1994 |
| A solid-block homodyne Doppler interferometer utilizing continuous-wave or pulse-wave light beam technology. A pulse-wave light beam version of the homodyne interferometer compares the pulse-wave return signal with a continuous-wave local oscillator signal, thereby permitting the int |
| 5324915 |
Microcontroller controlled input protection |
June 28, 1994 |
| A method and apparatus provide input protection in a system having a controller which monitors a controller terminal for at least one monitor period. The controller terminal is coupled for bi-directional operation. The controller terminal is set to an output configuration for at least a |
| 5323999 |
Microstructure gas valve control |
June 28, 1994 |
| A flow control device includes a housing with separate main flow and flow control (servo) passages between an inlet port and an exit port. A control chamber in the housing is in fluid communication with the servo passage. A flexible membrane forms a partition between the main flow passag |
| 5323437 |
Full and partial cycle counting apparatus and method |
June 21, 1994 |
| Apparatus for determining the number of cycles occurring in a frequency modulated signal during a sample period, including not only the number of full cycles but any portion of a cycle, by determining the number of whole cycles and adding to this a value obtained by counting the number o |
| 5323409 |
Wavelength stabilization |
June 21, 1994 |
| An optical source emits a source optical signal having a source optical signal power and a wavelength. A splitter or other similar device splits the source optical signal into a first optical signal having a first optical signal power and into a second optical signal having a second |
| 5321945 |
Apparatus for controlling fuel transfers in a distributed fuel tank system |
June 21, 1994 |
| The present invention relates to a distributed fuel system, wherein a plurality of fuel tanks used for storing fuel are distributed in different locations.The fuel tanks are connected to each other via a manifold which permits fuel to flow therein. The distributed fuel system includes a |
| 5321772 |
Digital image processor |
June 14, 1994 |
| A digital image processor is described in which the output from a linear array of electro-optic sensors, first having been signal conditioned and digitized, is then loaded into a RAM image memory forming a part of the microprocessor-based template matching processor. The image memory |
| 5321406 |
Method of track merging in an aircraft tracking system |
June 14, 1994 |
| A method of processing a plurality of tracks representative of one or more target aircraft in a vicinity of a surveillance aircraft, where each track is generated in response to target reply signals provided by the target aircraft in response to interrogation signals transmitted by the |
| 5320123 |
Valve with dynamic function checking capability |
June 14, 1994 |
| A valve is provided with a means for determining the operability of the valve without causing it to change fluid conduction state. A spool member is axially moveable within a valve housing in response to pressure changes caused by the plunger of a pilot valve. The plunger is moved in res |
| 5319969 |
Method for determining 3-axis spacecraft attitude |
June 14, 1994 |
| A three axis attitude orientation system for a spacecraft in orbit which employs a single UV sensor. The single sensor provides roll and pitch information by locating the centroid of the earth and using this as a reference point. The system determines yaw by tracking the position of |
| 5319968 |
Apparatus for determining 3-axis space craft attitude |
June 14, 1994 |
| A three axis attitude orientation system for a spacecraft in orbit which employs a single UV sensor. The single sensor provides roll and pitch information by locating the centroid of the earth and using this as a reference point. The system determines yaw by tracking the position of |
| 5319727 |
Ion-beam deposited, gain enhanced ring resonators |
June 7, 1994 |
| An optical waveguide is created using the process of ion beam deposition resulting in a waveguide with low propagation loss, mode discrimination, and gain characteristics. The waveguide is made up of a multilayer stack which is deposited upon a thermally stable substrate, wherein the |
| 5319639 |
Crossbar with return net for scalable self-routing non-blocking message switching and routing sy |
June 7, 1994 |
| A crossbar useful for self-routing messages is described having a return network that can return all messages, or their headers, that encounter a busy node at the output. A system is described in which this crossbar with return network can operate as a building block. It is particularly |
| 5319480 |
Liquid crystal half-tone display with gray level uniformity |
June 7, 1994 |
| A half-tone liquid crystal display panel having half-tone pixels, each comprising a plurality of sub-pixels including first and second sub-pixels. Activation voltage is supplied to the first sub-pixel from a TFT switch and to the second sub-pixel from the TFT switch through a couplin |
| 5318652 |
Wafer bonding enhancement technique |
June 7, 1994 |
| Low temperature wafer bonding process enhancement makes a wafer surface hydrophobic, preparing it with a buffered oxide etchant and then exposing it to H.sub.2 O.sub.2 before thermoelectric bonding. Has particular application to diaphragm-based pressure sensor construction. |
| 5318156 |
Rigid volume viscous damper |
June 7, 1994 |
| A damping apparatus including a piston having an axis therethrough. The piston includes a coaxial body portion and a first and second end extending oppositely therefrom along the axis. A rigid housing is coaxial with and surrounds the body of the piston for forming a rigid fluid volume |
| 5318104 |
Error based zone controller |
June 7, 1994 |
| The present invention describes an apparatus and method for controlling the temperature in a plurality of comfort zones within a house or building. The invention contemplates a series of zone control devices which are selectively opened or closed to allow heating and/or cooling to indivi |
| 5317331 |
Symbology display method |
May 31, 1994 |
| In a digital display system including a stroke scanning mechanism, a method which comprises the steps of displaying symbology and increasing or decreasing the number of symbols stroke scanned, including the null symbol depending upon comparisons of actual stroke time to a predetermined s |
| 5317316 |
Method of altitude track initialization in an aircraft tracking system |
May 31, 1994 |
| A method of processing a plurality of replies of target aircraft provided in response to interrogation signals from the surveillance aircraft during surveillance periods to determine whether an altitude track may be initialized for use in a traffic alert and collision avoidance system |
| 5317286 |
Power combining oscillator |
May 31, 1994 |
| An array of unit oscillators interconnected with one another in that the transistors of the oscillators are connected to common lines. Separate lines in proximity provide coupling capacitance for feedback to sustain the oscillation of the unit oscillators. The separate lines also form a |
| 5317251 |
Peak magnetic field detector with non-volatile storage |
May 31, 1994 |
| A peak current detecting and non-volatile storage device has a substrate having a hole. Individual magnetic field detecting elements are located on the substrate and are radially displaced from the hole. A conductor extends through the hole. The magnetic field detecting elements are |
| 5314004 |
Thermostat for a variable capacity HVAC and method for providing a ramping set point on a setbac |
May 24, 1994 |
| A thermostat for providing control signals to a variable capacity HVAC system. The thermostat being a setback thermostat with a ramping set point for the recovery period. The thermostat monitoring the load signal required during recovery and increasing or decreasing the ramp slope ac |
| 5313625 |
Fault recoverable computer system |
May 17, 1994 |
| In a computer system having fault recoverable capability, there is included a first and second data processing unit (DPU), wherein each of the first and second DPU is executing the same task essentially in parallel. Each DPU comprises a processor, a memory and a protected memory. The pro |
| 5313488 |
Ring laser discharge starting concept |
May 17, 1994 |
| The anodes in a ring laser gyroscope are appropriately positioned for the easy starting of a gas discharge and maintaining the discharge at a lower electrical potential. Two operating anodes are placed symmetrical with and in close proximity to a cathode while a third trigger anode is pl |
| 5313154 |
Apparatus for detecting a frequency deviation between two frequency sources |
May 17, 1994 |
| The apparatus detects a difference of frequency between a first signal having a first frequency and a second signal having a second frequency, the first and second signals being digital signals. A phase shifter shifts the first signal such that the first signal and the shifted first sign |
| 5311542 |
Spread spectrum communication system |
May 10, 1994 |
| A spread spectrum communication system having a plurality of transmitters at remote locations capable of transmitting information to one or more receivers during a plurality of information time durations. A message structure interposing the plurality of information time durations with a |
| 5311538 |
Case-mounted RLG readout having block mounted optical sensor |
May 10, 1994 |
| A readout device is provided for use in a ring laser angular rate sensor assembly which has improved low rate performance. Low rate performance is improved by reducing sources of backscatter thus not allowing light to be reflected back into the optical signal carrying medium. Backscatter |
| 5311406 |
Microstrip printed wiring board and a method for making same |
May 10, 1994 |
| A multi-layered printed wiring board for high frequency application includes a first board of polytetrafluoroethylene (PTFE) having a metallic sheet on each side. The first side is etched to form high frequency circuity using micro-strip technology and the second side being a metallic |
| 5311337 |
Color mosaic matrix display having expanded or reduced hexagonal dot pattern |
May 10, 1994 |
| A display comprises a plurality of adjacent pixels wherein each pixel comprises three subpixels arranged in a triangular pattern, each having a hexagonal shape and substantially contiguous adjacent boundaries. This pattern allows predetermined subpixels to be increased or decreased in |
