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| Number | Title | Issue Date |
| 4867518 | All-fiber SFPM amplifier An "integrated fiber" device provides optical signal amplification to: (1) provide for increased distances between undersea repeaters and/or optical regeneration nodes in fiber optic transmission systems, or (2) support an increased number of multiple use... | 09/19/1989 |
| 4863247 | Optical arithmetic logic using the modified signed-digit redundant number representation Optical architectures are presented for performing fully parallel, carry-free computation with a trinary, modified signed-digit number representation to allow addition, subtraction and multiplication. Two different optical schemes involving position and p... | 09/05/1989 |
| 4851661 | Programmable near-infrared ranging system A high angular resolution ranging system particularly suitable for indoor plications involving mobile robot navigation and collision avoidance uses a programmable array of light emitters that can be sequentially incremented by a microprocessor. A pluralit... | 07/25/1989 |
| 4846209 | Scuttle valve A scuttle valve is provided for flooding a torpedo. The scuttle valve inces a housing which is fitted through the hull of the torpedo. The housing has a bore which when vacant, serves as a port to enable water to enter the torpedo. A piston is slidably m... | 07/11/1989 |
| 4846545 | Fiber optic cable connection An apparatus that joins ends of fiber optic cables includes a fiber proteon sleeve fitted over an area of optical coupling to cover bare optical fibers at the coupling. The sleeve extends from the bare fibers to cover a portion of a buffer section of eac... | 07/11/1989 |
| 4842218 | Pivotal mono wing cruise missile with wing deployment and fastener mechanism A moveable wing aircraft including a quick release, attachment mechanism carrying the aircraft on a bomb rack or other carrier and a mechanism for deploying the moveable wing from its captive carry position to its extended free flight position are discl... | 06/27/1989 |
| 4843448 | Thin-film integrated injection logic An integrated injection logic device formed on an insulating substrate. A lateral, load transistor and an adjacent, vertical switching transistor are formed in the semiconductor layer such that the collector region of the lateral transistor coincides with... | 06/27/1989 |
| 4838646 | Optical arithmetic logic using the modified signed-digit redundant number representation Optical architectures are presented for performing fully parallel, carry-free computation with a trinary, modified signal-digit number representation to allow addition, subtraction and multiplication. Two different optical schemes involving position and p... | 06/13/1989 |
| 4834684 | Ball lock release mechanism An instrumentation package and float are releasably joined to an anchor by connector that holds the float and anchor together until the anchor impacts the ocean bottom. Upon impact, the inertia of the float and package cause a connector shaft to continue ... | 05/30/1989 |
| 4822458 | Anodic coating with enhanced thermal conductivity A method of and apparatus for anodization uses an electrolyte consisting of .0 percent by weight of aqueous solution of oxalic acid, an anodization temperature in the range of 0°-5° C., and an anodization voltage starting at 100 volts and progressing to ... | 04/18/1989 |
| 4768156 | Imaging system An improved imaging system has applications to synthetic aperture radar, inverse synthetic aperture radar, delay-doppler radar, positron-emission topography sonar, radiometry and other applications having a target image provided by a series of data parame... | 08/30/1988 |
| 4763981 | Ultimate low-loss electro-optical cable An undersea cable reliably transmits optical control signals and data. At ast one optical fiber is axially disposed in an otherwise solid electrical conductor which transmits power the length of the cable. A concentrically disposed dielectric insulating l... | 08/16/1988 |
| 4763272 | Automated and computer controlled precision method of fused elongated optical fiber coupler fabrication An apparatus and method of manufacturing optical couplers of at least two optical fibers make explicit use of computer control to assure automation and reproducibility. The method and apparatus are independent of human operation for the precise and timely... | 08/09/1988 |
| 4755140 | Electronic personnel test device A device resembling a hand calculator provides an indicator of a subject's reaction time. An array of push-button keys has programmably varied numerals which do not correspond to an orderly presentation. A display on the device instructs that a particular... | 07/05/1988 |
| 4746187 | Kink-free fiber optic cable connector A kink-free fiber optic cable connector is provided for a cable having a plurality of optical fibers and strength wires. The connector includes a first connector body for receiving the fiber optic cable and clamping the strength wires thereof, and a secon... | 05/24/1988 |
| 4742202 | Microwave apparatus for heating contained liquid An apparatus is provided for heating contained liquid, and more particula for thawing frozen blood components which are contained in a bag. The heating apparatus includes a microwave oven which has a cavity for receiving objects to be heated. A track is ... | 05/03/1988 |
| 4731754 | Erasable optical memory material from a ferroelectric polymer An electro-optic memory effect providing for storing, erasing and rewriting igital information relies upon a ferroelectric polymer, polyvinylidene fluoride. Recent development of tri-fluoroethylene copolymers of this material with Curie temperatures below ... | 03/15/1988 |
| 4719858 | Explosive band separation device Successive stages of a missile are held together by an encircling band jod at its ends by an explosive band separation device. Opposite ends of the band are welded to separable parts which interlock with each other. Since the band is held in tension, inc... | 01/19/1988 |
| 4718406 | Fiber optics image scope (micro-endoscope), ureteroscope An endoscope of such small size and flexibility to allow safe diagnosis and treatment of lesions and disorders of the ureter and kidney. A 2mm outer diameter tube fabricated from a low friction material includes a bundle of fiber optics shaped to conform ... | 01/12/1988 |
| 4718063 | Optoelectronic integrated circuit multiplex An apparatus and method for improving VLSI and VHSIC system data transmission relies on a plurality of optoelectronic switches actuated by pulses from at least one light source, a laser. Differing lengths of optical fibers couple the pulsed light from the... | 01/05/1988 |
| 4708278 | Portable, electronically controlled, integrated, P.C.B. rework station A portable work center is a self-contained, electronic, electro-mechanical, ench top work unit used in the servicing of electronic circuits and specifically printed circuit boards. Solder iron temperature adjust control functions, a continuously variable v... | 11/24/1987 |
| 4706550 | Metal matrix composite piston head and method of fabrication An aluminum torpedo piston is provided with a piston head fabricated from a etal matrix composite material composed of aluminum and silicon carbide fibers that are integrally joined by an inertial welding technique. A 23% weight of silicon carbide fibers t... | 11/17/1987 |
| 4696536 | Integrated optical wavelength demultiplexer An optical wavelength demultiplexer is fabricated as an integral part of an integrated circuit chip. A waveguide in a common substrate having a chirped diffraction grating receives a number of wavelengths of optically modulated data from a single mode fib... | 09/29/1987 |
| 4693119 | Lithium battery energy monitor A lithium battery is provided with an energy monitor that continuously inates the energy remaining in the battery. An electrolytic coulometer is connected in series with the battery and has a cantilevered cathode which increases its mass in proportion to... | 09/15/1987 |
| 4693436 | Parachute fly-away deployment aid A parachute having a canopy with a number of suspension lines has a pair of losing flaps attached to opposite sides of the canopy. Holes in flaps match locking loops on an apron and the suspension lines are bighted to hold the canopy shut as the parachute ... | 09/15/1987 |
| 4692885 | Optical floating-point matrix-vector multiplier A digital multiplication by analog convolusion algorithm is extended by a brid combination of both floating and fixed-point arithmetic. An acousto-optical time-integrating architecture uses a binary representation of the hybrid combination of floating and... | 09/08/1987 |
| 4685799 | Integrated optical time domain reflectometer/insertion loss measurement system A combination optical time domain reflectometer (OTDR) and insertion loss measurement system evaluates environmental stress effects on a test fiberoptic cable. A multiport coupler joins the OTDR and insertion loss system to the test fiberoptic cable via a... | 08/11/1987 |
| 4671847 | Thermally-activated vapor etchant for InP Vapor from liquid ethylene dibromide (EDB) functions in a manner superior anhydrous HCl for in situ gas phase etching of InP substrates in Metalorganic Vapor Phased Epitaxy (MOVPE). The etch rate and surface morphology behaviors have been determined for ... | 06/09/1987 |
| 4634870 | Thermal image dynamic range expander A gas cell array absorbs infrared energy radiated by a viewed scene. A la interferometer has its resultant intensity changed by the cell's changing length. This is monitored by a vidicon tube that feeds the signal to a digitizer and onto a video display.... | 01/06/1987 |
| 4633079 | Fiber optics as an angular sensor An uncomplicated, compact and environmentally-immune sensor for the degree f articulation of finger joints in a remote underwater vehicle uses a length of an optical fiber connected to each finger joint. As the joint is rotated, the bending of the optical ... | 12/30/1986 |
| 4633427 | Advanced cube processor An apparatus and method provide for the electrooptic performing of matrix-matrix multiplication, computation of the cross-ambiguity function and calculation of triple correlations. A collimated light source is pulsed to illuminate a first matrix of optica... | 12/30/1986 |
| 4611245 | Real-time ultra-high resolution image projection display using laser-addressed liquid crystal light valve A wide screen display enables a number of viewers the simultaneous viewing f rapidly updated data in real time at video rates. A beam of coherent radiation from a laser is modulated at video rates in an acousto-optic modulator. The modulated beam is fed to... | 09/09/1986 |
| 4610169 | Variable temperature trap Volatile organotin compounds are concentrated and subsequently eluted to a detector which provides an indication of the concentration of the various compounds of interest. An elongate tube having a longitudinal chamber containing granular absorbent receiv... | 09/09/1986 |
| 4580931 | In-situ machine for refurbishing a bore in a workpiece An in situ machine is provided for refurbishing a bore in a workpiece. The achine includes a shaft which is adapted to be fixed to the workpiece in axial alignment therewith. A tubular boring element is concentrically mounted for rotation about the fixed s... | 04/08/1986 |
| 4574252 | Constant rise AGC device The invented device provides automatic gain control (AGC) of incoming sigs over a large dynamic range of input levels with a constant rise time. The constant rise AGC device includes a primary AGC loop for receiving the incoming or input signal and split... | 03/04/1986 |
| 4573214 | Satellite mounted system for transferring information using modulated sunlight A method and apparatus for broadcasting, transferring and disbursing infotion from space to earth uses sunlight as the carrier. An orbiting platform receives sunlight and modulates it with electromagnetic signals carrying the information beamed up from a... | 02/25/1986 |
| 4572518 | Leak free floating packing shaft seal A leak free floating packing shaft seal is provided for a rotatable shaft d a supporting annular structure wherein the supporting annular structure has a high pressure upstream side and a low pressure downstream side. The floating seal includes an annular... | 02/25/1986 |
| 4557553 | Method of wavelength multiplexing in fused single-mode fiber couplers An apparatus and method of entering and extracting a discrete wavelength of optical data in a single-mode duplex optical data transmission system relies on a selective evanescent field coupling. A continuous single-mode fiber transmits the two wavelengths... | 12/10/1985 |
| 4546249 | High speed optically controlled sampling system A number of high frequency signal sources such as a number of receiving annas have their information content extracted by an optoelectronic synchronous sampling system. A laser provides pulses of proper frequency and duration and feeds them to a fiberopt... | 10/08/1985 |
| 4545643 | Retro-reflective alignment technique for fiber optical connectors An apparatus and method provides an optically aligned connector for at le one optical fiber. A connector plate is machined with one flat surface which is placed in an abutting relationship on an optically flat mirror surface. A quarter pitch graded refra... | 10/08/1985 |
