| Patent Number |
Title Of Patent |
Date Issued |
| 6110758 |
Transmission mode photocathode with multilayer active layer for night vision and method |
August 29, 2000 |
| An improved photocathode and image intensifier tube are disclosed along with a method for making both the tube and photocathode. The disclosed photocathode and image intensifier tube have an active layer comprising two or more sublayers. The first sublayer has a first concentration of a |
| 6108086 |
System and method of stabilizing the scale factor shift in fiber optic gyroscopes using a spectr |
August 22, 2000 |
| A system and method for providing scale factor stabilization of a broadband light source used in fiber optic gyroscopes is provided. A primary bandpass filter is positioned in the propagation path of the light emitted by the broadband light source to narrow the spectral width of the opti |
| 6105427 |
Micro-mechanical semiconductor accelerometer |
August 22, 2000 |
| A precision, micro-mechanical semiconductor accelerometer of the differential-capacitor type comprises a pair of etched opposing cover layers fusion bonded to opposite sides of an etched proofmass layer to form a hermetically sealed assembly. The cover layers are formed from commerci |
| 6104849 |
Fiber optic rotary joint |
August 15, 2000 |
| Unidirectional and bi-directional fiber optic rotary joints are disclosed for coupling at least one optical signal across a rotary interface. The unidirectional joint includes a stator having a waveguide. A rotor is rotatable through a full 360.degree. revolution and is concentric to the |
| 6104846 |
System for splicing sensors into a multiple fiber optical cable |
August 15, 2000 |
| The length of optical cable affected when splicing in sensors is reduced by cutting and splicing two distribution fiber lines and two return fiber lines to each sensor. The cable includes a spare distribution fiber line and a spare return fiber line. The optical cable is first stripped b |
| 6100845 |
Emitter location using RF carrier or PRF measurement ratios |
August 8, 2000 |
| A method and apparatus for determining from a moving observer the location, in terms of latitude, longitude, altitude, and velocity, of a stationary or moving radar emitting a pulsed or continuous-wave signal. The moving observer extracts from the radar signal significant electronic supp |
| 6094607 |
3D AIME.TM. aircraft navigation |
July 25, 2000 |
| The apparatus of the present invention uses radar altimeter measurements and stored terrain altitude profiles to provide pre-filtered observations to a Kalman filter for estimating barometric offset at the airport runway, and barometric scale factor for offsets above the runway. These of |
| 6094304 |
Multi-function day/night observation, ranging, and sighting device and method of its operation |
July 25, 2000 |
| A multi-function day/night observation, ranging, and sighting device includes a single objective lens group and a single eyepiece lens and provides an image of a scene. The single objective lens group leads to a visible-light first optical path and to an invisible-light second optical |
| 6088810 |
Apparatus for synchronized data interchange between locally dedicated sources |
July 11, 2000 |
| A synchronous serial bus with timing information implemented in the bus standard protocol is provided for a bi-directional serial multi-channel data interchange between locally dedicated measuring instruments in a distributed configuration and/or with a data processing unit. This pro |
| 6088149 |
Apparatus for use in ring laser gyroscopes |
July 11, 2000 |
| The invention is a focusing polarization rotator for use in the resonant mirror system of a ring laser gyroscope. The focusing polarization rotator accomplishes the traditional task of rotating the plane of polarization of a light beam that passes through it and at the same time performs |
| 6087660 |
Night vision device and method |
July 11, 2000 |
| A night vision device (NVD) includes a control circuit having an acceleration-responsive switch. When the NVD is in a generally horizontal use position, the acceleration-responsive switch enables a circuit allowing voltage to be applied to an image intensifier tube of the night visio |
| 6087649 |
Night vision device having an image intensifier tube, microchannel plate and power supply for su |
July 11, 2000 |
| A night vision device with an image intensifier tube includes an improved power supply which operates the image intensifier tube of the device according to a variable duty cycle either at a design voltage level for the tube or at a voltage level simulating a dark-field. This duty cycle |
| 6085590 |
Multisensor with parametric rotor drive |
July 11, 2000 |
| A multisensor includes a ring-like piezoelectric drive. The ring, which may comprise a closed configuration formed of straight ring segments, surrounds a rotor assembly formed of a pair of rotors, each having a central hub. Vanes extend radially from the central hubs of the rotors to |
| 6080994 |
High output reflective optical correlator having a folded optical axis using ferro-electric liqu |
June 27, 2000 |
| An optical correlator system having a plurality of both active and passive reflective optical components between a source of electromagnetic radiation, such a visible coherent light, and an output detector array in a planar support body along a folded optical axis beam path within the |
| 6079270 |
Method and apparatus for generating driving signals for a vibratory rotation sensor |
June 27, 2000 |
| The invention is a method and apparatus for generating a plurality of driving signals for a vibratory rotation sensor, the plurality of driving signals resulting in a plurality of readout signals from the vibratory rotation sensor. The method comprises the steps of determining a 2.times. |
| 6073895 |
Mounting assembly for optical sight |
June 13, 2000 |
| The invention comprises a mounting assembly for an optical sight. In accordance with one embodiment of the invention, a mounting assembly may comprise a first foot (552) and a second foot (556). The first foot (552) may include a top (563), a first side (570), and a second opposite side |
| 6073077 |
Method for determining gravity in an inertial navigation system |
June 6, 2000 |
| The invention is a method for determining gravity in an inertial navigation system which periodically produces and stores in memory position coordinates. The method comprises the steps of (a) retrieving the most recently determined position coordinates, (b) determining coordinates L. |
| 6072921 |
Method of operating a fiber-optic acoustical sensor, apparatus for practicing the method, and in |
June 6, 2000 |
| A fiber-optic acoustical sensor system includes a light source, an elongate optical cable conducting light from the light source to an optical acoustical transducer located at a distance from the light source along this cable, and a polarizer at the acoustical transducer. The sensor |
| 6072815 |
Microlaser submount assembly and associates packaging method |
June 6, 2000 |
| The submount assembly includes a heat sink and a submount mounted upon the heat sink that is formed of a thermally conductive, electrically insulating material so as to transfer heat from the various components mounted upon the submount to the heat sink while effectively electrically |
| 6072565 |
Night vision device with improved laser range finder |
June 6, 2000 |
| An integrated night vision device and laser range finder (10) provides night-time imaging of a scene by use of an image intensifier tube (14), as well as providing laser range finding operations. In a laser range finder mode of operation the device (10) projects a pulse of laser light in |
| 6065340 |
Vibratory rotation sensor with novel electrode placements |
May 23, 2000 |
| The invention is an apparatus for sensing rotation comprising a housing, a resonator attached to the housing, a first set of electrodes consisting of one or more electrically-connected electrodes, and a second set of N electrodes. The resonator is a rotationally-symmetric, thin-walled ob |
| 6064630 |
Sensor with an optical interferometric pick-off |
May 16, 2000 |
| A system for measuring changes in an environmental parameter such as displacement, velocity, acceleration, or pressure, includes a laser for providing a pulsed, coherent light signal, and an interferometer having a first and second optical legs of unequal optical path lengths. The signal |
| 6064573 |
Method and apparatus for efficient conduction cooling of surface-mounted integrated circuits |
May 16, 2000 |
| A plurality of heat-conducting compressible button contacts (10) between a heatsink (28) and an electronic part, e.g., a printed wiring board (22) or integrated circuit (24), to be cooled. A thin plate (16) and/or indentations (44, 44') in the heatsink are preferably used to support the |
| 6064055 |
Night vision device having fine-resolution image intensifier tube, microchannel plate for such a |
May 16, 2000 |
| A night vision device (10) includes an improved fine-resolution microchannel plate (22) having a multitude of microchannels (32). The microchannels (32) are defined in groups (32a, 32b), with each group having plural microchannels. Each group of the microchannels originates with a si |
| 6063436 |
Use of multiple masks to control uniformity in coating deposition |
May 16, 2000 |
| The uniformity of individual layers of multiple coating materials deposited on a substrate in a vacuum deposition process (such as for manufacturing mirrors for use in ring laser gyroscopes) is improved by an apparatus and method that include changing the masks placed in front of the sub |
| 6063169 |
Control means for molecular sieve on-board oxygen generator |
May 16, 2000 |
| A control device for molecular sieve on-board oxygen generating systems measures both temperature and pressure of the inlet air of an oxygen generating system. An electronic control unit applies pressure limits to a pressure measurement signal and combines it with a temperature measureme |
| 6061945 |
Optical clamping system |
May 16, 2000 |
| The invention comprises an alignment element for a multiple channel sight and method. In accordance with one embodiment of the invention, an alignment element (456) may comprise a first prism (492) and a second prism (494). The second prism (494) may be disposed proximate to the first |
| 6059622 |
Method and system for manufacturing a photocathode |
May 9, 2000 |
| A system for manufacturing a photocathode includes a housing and a retainer disposed within the housing. The retainer includes a seating area operable to receive a first surface of the photocathode. The retainer is operable to independently translate relative to the housing along an axis |
| 6057871 |
Laser marking system and associated microlaser apparatus |
May 2, 2000 |
| A laser marking system and an associated microlaser apparatus are provided which include a submount, a plurality of pump sources operably mounted upon the submount, and a microlaser disposed in alignment with the pump sources such that pump signals emitted by the pump sources pump respec |
| 6055815 |
Temperature-controlled microchip laser assembly and associated submount assembly |
May 2, 2000 |
| A microchip laser assembly provides a microchip laser along with an integral Peltier thermoelectric temperature controller and temperature sensor. The temperature sensor measures the temperature of the microchip laser during operation so that the polarity and magnitude of a direct cu |
| 6054702 |
Light-intensity regulating system for a centripetal opposed pendulous accelerometer orientation |
April 25, 2000 |
| The COPA accelerometer utilizes a sensing body having a non-zero product of inertia to sense acceleration when spun or oscillated about the y'-axis of an x'-y'-z' Cartesian coordinate system. The sensing body is pivotally attached to a platform and pivots about an axis parallel to the z- |
| 6054068 |
Potting compound for fabrication of fiber optic gyro sensor coil and method for fabricating sens |
April 25, 2000 |
| A potting compound for use in the fabrication of fiber optic gyro sensor coils utilizes a silver-filled silicone base to reduce gyro sensitivity to changes in heat rate and thereby improve gyro performance during warm-up and periods of thermal cycling. |
| 6049967 |
Method of assembling a slip ring with an integral bearing |
April 18, 2000 |
| These and other objects of the present invention are achieved by inserting electrically conductive rings and a bearing into a mold before a slip ring body is injection molded. During the injection molding process, the rings and the bearing are partially encapsulated by the injected plast |
| 6049168 |
Method and system for manufacturing microchannel plates |
April 11, 2000 |
| The present invention discloses a method for manufacturing a photon detector and image generator. First, a screen operable to display a visual image based on a received signal is provided. The screen is then scrubbed. Next, an unfilmed microchannel plate having an input face and an outpu |
| 6047743 |
Integrated high pressure fill port and flow controller for cylinder recharger |
April 11, 2000 |
| An apparatus for providing oxygen-enriched air at a first pressure and at a second pressure, the second pressure being greater than the first pressure. The apparatus comprises, in combination, a pressure swing adsorption system and a pressure intensifier. The pressure swing adsorptio |
| 6044184 |
Integrated optics chip with reduced thermal errors due to pyroelectric effects |
March 28, 2000 |
| An integrated optics chip with improved performance when exposed to changing temperature is disclosed. The optic chip or integrated optics chip or MIOC has a top surface, a +Z face and -Z face. The integrated optics chip is formed from a crystal substrate having a high electro-optic |
| 6043775 |
Radar scan converter with direct display memory interface |
March 28, 2000 |
| The Radar Scan Converter receives range and azimuth data that is generated by a conventional radar and presented in a polar coordinate system, and processes and displays this data, in real time, on a conventional generally rectangular display screen which has a display formed by a re |
| 6042241 |
Backlight with integral illumination source |
March 28, 2000 |
| A backlight assembly for liquid crystal displays uses a clear sheet of plastic or UV friendly resin as a light-pipe and has one or more fluorescent lamps located in a cavity along an edge of the sheet. The cavity is coated with photo-luminescent phosphor. A quartz ultra-violet lamp i |
| 6041652 |
Multisensor rotor flexure mounting |
March 28, 2000 |
| A flexure assembly is provided for coupling and electrically interconnecting the rotors of an inertial multisensor. The rotor assembly is fixed to the base of the multisensor by means of a plurality of outer ring segments that attach to the base. An inner coupling ring is attached at |
| 6040908 |
Method for stress tuning fiber optic sensor coils |
March 21, 2000 |
| A method and apparatus for reducing the temperature-dependent Shupe bias of a potted gyro sensor coil pack to near-zero is provided by selectively adjusting the manner in which CCW and CW fiber leads are attached to the coil pack or the coil mount. The invention recognizes the inevitable |
| 6037893 |
Enhanced motion compensation technique in synthetic aperture radar systems |
March 14, 2000 |
| Compensating for motion of the host vehicle in a synthetic aperture radar system includes collecting inertial data with an inertial navigation system during an imaging period in which a synthetic aperture radar pulse is directed to a target. During the imaging period global positioning |
| 6028691 |
Machine vision |
February 22, 2000 |
| A machine vision apparatus (24) and method are provided which allows imaging by or with the aid of artificial observation devices, such as video cameras, binoculars, telescopes, and other optical observation devices (10) which have an objective lens (12) passing light from an object |
| 6025915 |
Scale factor stabilization of a broadband fiber source used in fiber optic gyroscopes in radiati |
February 15, 2000 |
| A system for performing scale factor stabilization of a broadband optical signal source used in fiber optic gyroscopes in radiation environments. An optical signal source is provided comprising a pump light source and an optical fiber arranged to receive pump light from the pump light so |
| 6008903 |
Method for compensating for fringe visibility errors in a fiber-optic gyro |
December 28, 1999 |
| The invention is a method for compensating for fringe visibility errors in a fiber-optic gyro. The light beam phase is modulated utilizing a phase-modulation generating function comprising a stepped waveform with steps of height 2.pi.k-.phi..sub.SE +j.phi..sub.M -.gamma..sub.ZS at time |
| 6008900 |
Method and apparatus for calibration of a multi-channel fiber optic interferometric sensor syste |
December 28, 1999 |
| A calibration technique for lasers of a data acquisition module in a signal processing system, wherein an optimal value of a phase modulation coefficient is calculated for each laser and used as the amplitude of a cosine wave signal for the laser module carrier frequency for phase mo |
| 6006639 |
Solder placement apparatus and method |
December 28, 1999 |
| A solder placement device forms a selected length of a solder wire and delivers it to a pigtailing station where an optical fiber and a crystal diode are to be optically coupled together. The solder placement device includes casing that contains a plunger arranged for reciprocal movement |
| 6005257 |
Transmission mode photocathode with multilayer active layer for night vision and method |
December 21, 1999 |
| An improved photocathode and image intensifier tube are disclosed along with a method for making both the tube and photocathode. The disclosed photocathode and image intensifier tube have an active layer comprising two or more sublayers. The first sublayer has a first concentration of a |
| 6000667 |
Mounting assembly for optical sight |
December 14, 1999 |
| The invention comprises a mounting assembly for an optical sight. In accordance with one embodiment of the invention, a mounting assembly may comprise a first foot (552) and a second foot (556). The first foot (552) may include a top (563), a first side (570), and a second opposite side |
| 5999260 |
Method and apparatus for initialization of a fiber optic gyroscope |
December 7, 1999 |
| A method and apparatus are provided for initializing a closed-loop fiber optic gyroscope system of the type that includes a fiber optic gyroscope for generating an interferometric measurement of phase shift and a demodulator for converting the gyroscope output to a corresponding value |
| 5999129 |
Multiplatform ambiguous phase circle and TDOA protection emitter location |
December 7, 1999 |
| A method and system for determining the geolocation--i.e., the latitude, longitude, and altitude--of a stationary RF signal emitter from two or more moving observer aircraft. The observers receive signals from the emitter and the system measures the phase difference between the signals. |
