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The United States of America as represented by the Secretary of the Air Patents
Assignee:
The United States of America as represented by the Secretary of the Air
Address:
Washington, DC
No. of patents:
3120
Patents:




Patent Number Title Of Patent Date Issued
5557635 Voice encode/decode subsystem in a system for acquisition of test data using pulse code modulati September 17, 1996
The encode and decode subsystems use a continuously variable slope delta-modulation (CVSD) approach, with either parallel or serial data transfers. To allow for synchronization with a stable data transfer, the entire subsystem uses the main acquisition systems bit rate clock (BRC) as
5557403 System and method for measuring crazing in a transparency September 17, 1996
A system for measuring crazing in a transparency is described which comprises one or more light sources disposed near a first surface of the transparency for projecting light rays through the transparency at the portion thereof having a crazed condition, optical detectors corresponding
5557120 Wafer joined optoelectronic integrated circuits September 17, 1996
A full wafer to full wafer integrated circuit apparatus wherein substrate removal and replacement on one wafer has been used to enable an accurate alignment of this wafer with features of a receiving wafer during a see through alignment step. The invention is disclosed in terms of a wafe
5555128 Phase coding technique for one-way image transmission through an aberrating medium September 10, 1996
An object beam is passed through an aberrating medium to produce a diffraction distorted image therein, which is imaged upon a spatial light modulator. A probe beam measures the phase aberrated wavefront within the aberrating medium and is used to produce an interference pattern which is
5553629 Portable medical laser pack system September 10, 1996
A fiber optic cable has one end directly coupled to a semiconductor IR generating laser diode array and the other end is used to direct IR radiation at a soldier's wound for surgical purposes. The beam may also be used to illuminate a dark scene to detect the presence of a present threat
5552238 Stabilized rechargeable cell in MSE and method therefor September 3, 1996
Method is provided for preparing a stabilized rechargeable cell having a negative electrode and a molten salt electrolyte (MSE) while avoiding problems of chloroaluminate cell system which are not air stable. The cell of the present invention thus employs an LiBF.sub.4 /EMI.sub.BF4 MSE a
5550432 Smart adaptive vacuum electronics August 27, 1996
A system which integrates "intelligent" electronic feedback into the structure of vacuum electronic devices whose subcomponents are electronically and/or electro-mechanically adaptive. By "vacuum electronic device," is meant any source of microwave (or millimeter-wave) power generati
5546089 Optical monopulse chirp processor August 13, 1996
An optical chirp processor for the collection and processing clutter samples is presented that allows the simultaneous estimation of both the clutter mean and variance. The estimated clutter mean and variance allow the actual calculation of both clutter model parameters using a power
5546083 Bidirectional repeater amplifier August 13, 1996
A double diamond configuration of phase shift circuits are coupled via circulators, amplifiers, power dividers, and power combiners. The circuit arrangement serves to amplify signals in either direction while accurately maintaining relative phase shift. There is a 180 degree phase shift
5544696 Enhanced nucleate boiling heat transfer for electronic cooling and thermal energy transfer August 13, 1996
A micro consideration of the phase change or boiling cooling of an electronic part is disclosed including focus on a heat exchanging problem that is encountered in the use of this phase change cooling in the presence of realistic flow rates and energy dissipations. The combination of
5544615 Synthesis and growth processes for zinc germanium diphosphide single crystals August 13, 1996
New single crystals of ZnGeP.sub.2 are grown by a chemical vapor transport process from bulk synthesized polycrystalline ZnGeP.sub.2 using the LEK process with a controlled injection of phosphorus. The synthesis of the bulk is based on direct injection of phosphorus through a B.sub.2 O.s
5544480 Augmentor light-off improvement August 13, 1996
The disclosure describes a fuel scheduling system that controls the fuel into the pilot burner of an afterburner by making fuel flow directly proportional to compressor discharge pressure at low compressor pressures, but to limit fuel flow to a fixed value at high A/B pressures. This is
5544174 Programmable boundary scan and input output parameter device for testing integrated circuits August 6, 1996
Boundary scan testing of devices such as printed circuit boards and multi chip modules, when the needed circuits have not been provided on IC chips by the manufacturer, is accomplished with a diagnostic and testing integrated circuit that performs a boundary scan external to available
5543630 High Tc superconducting devices on bi-crystal substrates August 6, 1996
The edge-defined, film-fed growth technique process is modified to produce a thin ribbon of bi-crystalline sapphire wherein the grain boundary is an essentially straight boundary and the angle is predetermined by selective cutting of the two seeds which are placed closely together during
5543170 Desorption mass spectrometric control of alloy composition during molecular beam epitaxy August 6, 1996
System and method for controlling alloy composition during molecular beam epitaxy growth of group III-V ternaries at high substrate temperature or under any conditions which give rise to significant desorption rates is described which incorporates desorption mass spectrometry in a real t
5541728 Solid stationary interferometer fourier transform spectrometer July 30, 1996
A stationary Fourier transform spectrometer is described which includes an interferometer including a substantially solid assembly of a beamsplitter, two right angle prisms and a pentaprism of preselected respective aperture sizes, a radiation source, a Fourier transform lens and an opti
5541438 Backside illuminated MSM device July 30, 1996
An improved Metal Semiconductor Metal (MSM) photodiode device and a fabrication process for realizing this device. The improved photodiode device employs frontside electrodes and backside illumination to avoid active area shadowing in the device. This configuration is achieved throug
5541409 High resolution retarding potential analyzer July 30, 1996
A simple electrostatic retarding potential analyzer configuration is described that gives a true measure of charged particle energy irrespective of the angle of incidence of the particles. The device has an inherently high energy resolution (.DELTA. E/E<0.01). The device eliminate
5541010 Optical solar reflector July 30, 1996
An optical solar reflector comprising a layer of silicon nitride having a reflective metallic coating on one side thereof and an optional dielectric coating on the opposite side.
5540996 Rigidized, low density, insulation July 30, 1996
A thermal insulating device for use as the exterior coating of a space vehicle which consists essentially of a rigid carbon-carbon foam having an elastomeric foam bonded to the rear surface thereof and having a chemically vapor deposited coating applied to the front and side surfaces
5540949 Method for cutting threads in a carbon-carbon structure July 30, 1996
The cutting of attachment threads in a carbon-carbon billet is improved by coating the portion to be threaded with an epoxy resin, and at least partially curing the resin prior to cutting the threads.
5540780 Molecular beam epitaxy effusion cell July 30, 1996
A temperature controlled source cell for use in the practice of thin film depositions by molecular beam epitaxy is described which includes an optical sensor for monitoring source temperature, the sensor including a light pipe having one end near the source and the other end coupled to a
5539361 Electromagnetic wave transfer July 23, 1996
Method and apparatus for transiting from one form of electromagnetic wave guidance to another by increasingly or reducingly guiding an electromagnetic wave to or from a conductor serving as a ground plane and coupled to the other form of wave guidance at the ground plane through an a
5537686 Advanced technology anti-G suit July 23, 1996
A new extended coverage anti-G suit combines a new continuous lower body pressure bladder with a nonextensible outer covering. The continuous lower body pressure bladder includes an abdominal bladder section and a pair of wrap-around leg bladder sections. Each leg bladder sections overla
5537120 Main lobe shifting means July 16, 1996
Improved performance in electronic countermeasure systems that utilize main lobe shifting techniques to jam track while scan threat radars are achieved through the use of a modulation sweep program that overcomes scan rate frequency and phase uncertainties. The modulation sweep program i
5536866 Triarylamine-based dinitrile and dicarboxylic acid monomers July 16, 1996
Triarylamino-based dinitrile and dicarboxylic acid monomers as represented by the formula: ##STR1## wherein Z is --CN or --COOH and R is selected from the group consisting of --H, --CH.sub.3, --N(CH.sub.3).sub.2 and --OH.
5535128 Hierarchical feedback control of pulsed laser deposition July 9, 1996
A hierarchical control PLD system controls deposition processes by feedback means, for industrial production of tribological thin films. PLD process system identification, intelligent feedback control architecture, and implementation for ultraviolet pulsed laser deposition processes are
5535029 Spatial light modulator having amplitude coupled with binary phase mode July 9, 1996
An SLM rotates linearly polarized incident light, produced by a first polarizer, through a continuous range of angles up to a maximum angle, eg. seventy degrees. The second output polarizer is oriented orthogonally with respect to the angular thirty-five degrees bisector between the firs
5535024 Photorefractive holographic interference novelty filter July 9, 1996
A novelty filter utilizes self-nulling and self-aligning of reflection and transmission phase conjugate beams. A photorefractive crystal is arranged so that the contributions to the phase conjugate are equal and opposite in the steady state to produce destructive interference when the in
5534613 Benzobisazole polymers containing triarylamino moieties July 9, 1996
Polymers of the class rigid-rod aromatic heterocyclic polymers, having repeating units of the formula: ##STR1## wherein R is selected from the group consisting of --H, --CH.sub.3, --N(CH.sub.3).sub.2 and --OH, and Q is ##STR2## wherein X is --S-- or --O--, exhibit increased e
5534090 Dosimeter capsule indicating service life of a rocket motor July 9, 1996
A novel dosimeter capsule for indicating the condition of the solid propellant contained within a rocket motor to provide a measure of the remaining service life of the motor is described, which comprises a sealed expandable container and a portion of the solid propellant sealed therein
5534044 Self-lubricating aluminum metal-matrix composites July 9, 1996
A self-lubricating aluminum alloy bearing material which can be used in vacuum, dry or moist environments which consists essentially of about 0.5 to 25, preferably about 5-20 volume percent of hard ceramic particles and about 1 to 7, preferably 3-5 volume percent of at least one solid
5532696 Pseudo random jammer with false target scintillation capability July 2, 1996
A pseudo random FM noise jammer that produces scintillation of false targets. A rate and amplitude controlled pseudo random sequence generator is fed to a low pass filter which is resistively coupled to an operational amplifier. A clock pulses a pseudo random generator and both the clock
5532493 Optical waveguide chemical and biological sensor July 2, 1996
An optical waveguide sensor particularly useful as a chemical or biological sensor is described which comprises a single mode fibre optic waveguide including a core surrounded by a cladding and having a tapered portion which tapers adiabatically inwardly to a waist of diameter typically
5532173 FET optical receiver using backside illumination, indium materials species July 2, 1996
A photo FET device having a large area backside optical energy reception surface is disclosed. The photo FET device is fabricated in the source gate and drain upward configuration using a lattice determining surrogate substrate and a mesa-forming deep etch processing sequence and then
5530927 Doubly balanced superconductive mixer network June 25, 1996
A feed network parallel superconductive tunnel junction circuit that acts as a doubly balanced mixer and can be utilized as a millimeter wave satellite communications link. A quadrature-fed mixer circuit relies on a network of 90 degree couplers to feed signal and local oscillator power
5528618 Photolytic iodine laser system with turbo-molecular blower June 18, 1996
A high power, closed cycle photolytic atomic iodine laser system having a high molecular weight gas as a laser fuel and which requires a high velocity flow of the laser fuel, the laser fuel to be in a selected low pressure range, and the laser fuel to be of very high purity. The laser
5526450 NLO waveguide "or" switch and method therefor June 11, 1996
Method and apparatus are provided for NLO switching by first providing an amorphous waveguide (wg) encoded with gratings which produce phase-matched SHG in at least two wg modes. Then two input pulsed laser beams (preferably beams split from the same source) are directed into and pro
5526305 Two-transistor dynamic random-access memory cell June 11, 1996
A dynamic random access memory circuit for storing an information signal using both a data input line and a data output line for a two-transistor dynamic ram cell memory circuit is disclosed. The circuit is incorporated into an integrated circuit array of similar cells. Because of the na
5521386 Gamma ray camera method and apparatus May 28, 1996
A gamma ray imaging camera system and method for using it are described which in representative embodiments include a gamma ray collimator, a scintillator adjacent the collimator for converting gamma photons into visible photons, a low level visible photon detector including at least
5521277 Benzobisazole copolymers containing triarylamino moieties May 28, 1996
A copolymer having repeating units of the formula: ##STR1## wherein R is selected from the group consisting of --H, --CH.sub.3, --N(CH.sub.3).sub.2 and --OH, x has a value of 0.01 to 0.99 and Q is ##STR2## wherein X is --S-- or --O--.
5519362 Optical current controlled oscillators May 21, 1996
The observation of self-sustained pulsation and transient self-pulsation in laser diodes at 1300 nm is described with the effects of optoelectronic feedback on the pulsations. Transient self-pulsation has a lifetime of a few minutes with frequencies up to 7 GHz. The linewidth of self-pul
5517200 Method for detecting and assessing severity of coordinated failures in phased array antennas May 14, 1996
A method is described for determining when maintenance is required for a phased antenna array in which a number of individual antenna modules may have failed. The method provides for the assigning of a value to each failed module, depending on where the module is located within the array
5514769 Aromatic polyamides containing keto-benzocyclobutene pendants May 7, 1996
A crosslinkable polymer having repeating units of the formula: ##STR1## wherein Ar is selected from the group consisting of ##STR2## These polymers are useful in the preparation of molecular composites with rigid-rod polymers, including para-oriented benzobisazole polymers, such
5513287 Prism coupling mount April 30, 1996
A prism coupling mount is provided for readily substituting various prisms and planar slab waveguides therein without damage to these components. For maximum coupling efficiency, the spacing between the coupling prism base and the waveguide can be adjusted, along with the mode selection
5512999 Method for nondestructive measurement of dislocation density in GaAs April 30, 1996
A method for nondestructively measuring dislocation density in a GaAs wafer is disclosed in which an unetched GaAs wafer is tested for fractional transmission (T) of light at a plurality of points over its surface. A light beam from a suitable source such as a tungsten-halogen lamp is
5511019 Joint transform correlator using temporal discrimination April 23, 1996
A joint transform correlator has modulators for temporally modulating a first optical input signal at a first frequency and a second optical input signal at a second frequency. An image sensor in the Fourier plane forms a product signal modulated by temporal sum and difference frequencie
5508376 Alcohol soluble rigid-rod benzobisazole polymers April 16, 1996
Alcohol-soluble aromatic heterocyclic polymers and copolymers having repeating units of the formulae I or II: ##STR1## wherein Q is a benzobisazole of the formula: ##STR2## wherein X is --O-- or --S--; wherein x has a value of 0.0 to 1.00 and y has a value of 0.05 to 1.00, an
5508174 Method and micro roller bottle for in vitro exposure of cells to volatile chemicals April 16, 1996
A culture bottle for the in vitro exposure of a cell culture to a volatile chemical comprises a closed cylindrical body defining a longitudinal axis and having an opening at each end of the body, substantially concentric with the axis, wherein each opening, comprises an aseptically seala
5507961 High temperature cesium-containing solid lubricant April 16, 1996
A method for lubricating a ceramic bearing surface which comprises applying a cesium-containing compound selected from the group consisting of Cs.sub.2 MoO.sub.4, Cs.sub.2 SO.sub.4, Cs.sub.2 WO.sub.4, Cs.sub.2 WOS.sub.3, Cs.sub.2 MoOS.sub.3 and CsOH, to the bearing surface and heatin

 
 
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