Abstract: A system and a method is disclosed for verifying a voice of a user conducting a telephone transaction. The system and method includes a mechanism for prompting the user to speak in a limited vocabulary. A feature extractor converts the limited vocabulary into a plurality of speech frames. A pre-processor is coupled to the feature extractor for processing the plurality of speech frames to produce a plurality of processed frames. The processing includes frame selection, which eliminates each of the plurality of speech frames having an absence of words. A Viterbi decoder is also coupled to said feature extractor for assigning a frame label to each of the plurality of speech frames to produce a plurality of frame labels. The processed frames and frame labels are then combined to produce a voice model, which includes each of the plurality of frame labels that correspond to the number of plurality of processed frames.

Abstract: A multi-layer circuit structure including a plurality of substrate layers. At least one planar transmission line, including microstrip, stripline, or coplanar line, disposed on the plurality of substrate layers. A via transmission line connected to that at least one planar transmission line and extending through the plurality of substrate layers. The via transmission lines having the same topology as the at least one planar transmission line for providing wide frequency band transition between the via transmission lines and the at least one planar transmission line.

Abstract: A mechanical hand grenade launcher comprised of a launch tube and spring-ven plunger for propelling a hand grenade to a target area. At the aft end of the launcher is a charging handle that when pulled rearward compresses a spring within the launcher tube. When the spring has been sufficiently compressed, the spring is then locked in the cocked position by a safety pin attached to a first lanyard. A hand grenade is loaded through the fore end of the launcher and the grenade's pull pin is attached to a second lanyard. When rearward force is applied to the second lanyard, the grenade pull pin is dislodged from the grenade. To launch the grenade, rearward force is applied to the first lanyard dislodging the safety pin which releases the spring. The force of the expanding spring imparted to the hand grenade propels the hand grenade out of the fore end of the launch tube toward the target area.

Abstract: A cylindrical canister or respirator filter for use in conjunction with a s mask for individual protection against respiratory hazards, including a frustum shaped carbon bed and a layered array of different size carbon particles in the carbon bed. The interior wall of the canister or respirator is dimpled to afford greater packing density of the carbon particles, and the carbon particles have hollow rectangular or cylindrical extrudate shapes. A chromium-free carbon is used to reduce health risks to users.

Abstract: Undesirable reflections from an element in an optical system are eliminated y passing incoming light through a polarizer and a 45.degree. optical rotator before it strikes the reflective element. The reflected light component is again rotated 45.degree. by the rotator, for a total rotation of 90.degree., whereupon it is blocked from leaving the system by the polarizer. Alternatively, a quarter wave plate or other circular polarizing component may replace the rotator to result in a net rotation of the polarization of the reflected light by 90.degree..

Abstract: An ammunition temperature emulating system is provided for use in a tank ch carries ammunition. The temperature of the ammunition (which comprises liquid propellant) is needed to be known for firing accuracy. The temperature is indirectly approximated by measuring the temperature of the wall of the chamber in which the ammunition is stored, using a simulating thermal insert. The system includes a gauge having a sensor bulb, a vacuum bottle having a cavity receiving the sensor bulb and receiving the simulating thermal insert.

Abstract: System and modifications are presented which allow existing artillery and rtar projectile proximity fuzes to have a near-surface burst (NSB) option enabling low height of bursts ranging between one and three meters. The additional circuitry needed to implement this NSB into an existing fuze is a single operational amplifier. The velocity of the fuze is calculated by the micro-controller counting the number of Doppler cycles over a pre-determined sample period of time. Thereafter, using the fuze velocity, the delay time needed for a NSB detonation is computed.

Abstract: A sealed metal ammunition container for holding at least one round of ammtion. The container body is sized to hold the ammunition and has an opening at one end thereof. A metal bottom flange is fixedly attached to file container body at the one end and includes an opening therein sufficiently large to vent pressure from ignited energetic contained therein. A metal top flange is provided for attachment to the bottom flange, the top flange also having a similar opening therein. A fuse formed from a material having a melting point below the ignition temperature of the ammunition is positioned between the top flange and the bottom flange to form a meltable closure at the open end of the body. A rubber flange gasket is positioned between the bottom flange and the fuse to form a hermetic seal when compressed upon closure thereof. Equally spaced screws mount the top flange, fuse, and flange gasket to the bottom flange to form a hermetic seal.

Abstract: A motion detection monitor for patient movement, comprising a sensor for viding signals in response to patient movement to provide an alarm under predetermined conditions of patient movement. A processor, including an oscillator, is provided for receiving signals from the sensor, to provide oscillator interrupt signals proportional to active signals. The interrupt signals are observed within a contiguous series at time windows. The alarm condition is satisfied when interrup signals are detected within each window. The sensor preferably includes a conductive sphere in a cylinder having an interior portion locating the sphere therein with conductive end plates and conductive inner surfaces, the inner surfaces being tapered to direct the sphere to an at rest condition in contact with at least one surface and at least a part of the inner surface in any orientation of the sensor.

Abstract: A split wedge/breechblock for inserting and extracting the bridge seal from he powder chamber of a gun tube. The device includes a sealing mechanism for the sliding surfaces between the wedge and the breechblock, a bridge seal for use in the XM 297 gun system, and an improved stepped wedge and breechblock design which eliminates adverse downward forces during gun firing.

Abstract: A communications electronic warfare trainer that includes apparatus and a thod by which a training umpire can control the localized jamming of a victim communications system. A control signal containing an address and duration of jamming is generated and transmitted using the same frequency as the victim communications system. The control signal is processed by a Receiver Unit collocated with the victim communications system to determine if the control signal address matches the address of the victim communications system. If an address match is found, a jamming signal is produced for the specified duration causing disruption of the normal operation of the victim communications system.

Abstract: A sampling system with a remotely operable, in-line sampler with continuous low of sample flush water is described. The device is used in the production of friction sensitive liquid nitrate esters, particularly nitroglycerin and diethylene glycol dinitrate.

Abstract: A new joint for use in combustible cartridge case munitions which reduces e risk of combustible cartridge case and case base and seal assembly separation during routine handling and minimizes the problems related to dechambering, comprised of a seal mated to the case base and into the exterior of the combustible cartridge case.

Abstract: A device for housing toxic waste or toxic munitions including a vessel having a body flange and a removable cap that interfaces with the body flange to make a hermetic seal. A primary and a secondary O-ring are positioned between the cap and the body flange to ensure a leak-proof seal having an integrity of 1.times.10.sup.-6 He/sec at one atmosphere at standard temperature and pressure (STP).

Abstract: A method for and system of measuring the thickness of a component dimension f a sample material. Sound waves are coupled for transmission along a component direction of a sample material and also through first and second reference standards to provide first and second reference thicknesses. As the sound wave signal is transmitted, the time for the sound wave signal to traverse the sample thickness and the first and second reference thicknesses is measured. The thickness of the sample is calculated by calculating the velocity of the signal from the traverse times for the first and second reference thicknesses. Preferable, the calculations are made by a computer, and may be repeated over a period of time to calculate a change of thickness as a function of time.

Abstract: A leak detector is provided for detecting and indicating a leak opening of seam in a mortar increment container or the like. This will work with porous or non-porous materials. The leak detector includes a plurality of thermistors arranged to sense selective portions of the seam, and a process circuit for receiving respective signals from the thermistors for identifying and displaying a leak condition or a no-leak condition or a bad-thermistor condition.

Abstract: A trailer surge brake actuator comprises a plurality of stacked slider asblies. At least one rigid first tubular body is affixed by suitable means to the front end of a trailer. A first rigid cylinder slider attached to the towing vehicle extends longitudinally and reciprocates inside the first tubular body. Attached to the first slider is a rigid member connecting the first slider with at least one second cylinder slider which reciprocates within a second tubular body attached to the top of the first tubular body. The rigid member prevents the first and second sliders from rotating when the towing vehicle's pintle rotates. The second slider's end within the second tubular body is in contact with a pushrod that actuates a brake master cylinder attached to the aft end of the second tubular body.

Abstract: A solid fuel ramjet tubular projectile has a generally tubular body fabried of dense material or suitable hardened material having a bore formed therethrough and having first and second ends. A plurality of partitions divide the bore into a plurality of separate combustion chambers. Each of the combustion chambers extends longitudinally substantially the length of the body. Solid fuel is formed upon the body within each of the combustion cheers. An inlet is formed at the first end of the body, into which air is received. The inlet is configured so as to substantially decelerate air entering the inlet at supersonic velocity to subsonic velocity prior to the air entering the combustion cheers. An outlet, through which combustion gases flow, is formed at the second end of the body. A mixing section is preferably formed intermediate the combustion chamber and the outlet so as to facilitate substantial mixing of the combustion gases from each combustion chamber prior to the combustion gases entering the outlet.

Abstract: A system for removing particulates, formed as metal is machined, from coog and lubricating fluid. The system has a tank filled with fluid. The bottom of the tank slopes forward. The tank receives contaminated fluid at its top rear. The contaminants are swarf (chips removed from the workpiece) and fines (which come both from the workpiece and the grinder, borer, or drill). After the swarf is removed from the contaminated fluid by a magnetic filter, only fines remain. The fluid contaminated with fines flows from back to front in the tank, passing under a baffle projecting vertically downward from the top of the tank. A whoosh plate causes the fines to settle out into the tank, while uncontaminated fluid flows over the whoosh plate and is reused. The fines collect at the tank's bottom, from where they are pumped out and mixed with the magnetically-removed swarf for removal.

Abstract: A bridge seal for a Regenerative Liquid Propulsion Gun System is compressly preloaded into interfacing gun tube cylinder and chamber cylinder seal seats providing an interference fit capable of withstanding corrosive high temperature gases and high frequency pressure impulse fluctuations.