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| Number | Title | Issue Date |
| 5548442 | Optical sight assembly An optical assembly (10) includes a first plurality of optical elements (14) providing the viewer a first field of view and a second plurality of optical elements (18) that, when moved into the optical path (16), provides the viewer with a second field of... | 08/20/1996 |
| 5548329 | Perceptual delta frame processing A perceptual delta frame processor for use with a detector array and a noninterlaced video display that produces an image equivalent to that of an image difference processing system. The processor includes a responsivity equalization circuit for processin... | 08/20/1996 |
| 5454064 | System for correlating object reports utilizing connectionist architecture A correlation processor (22) for solving large correlation problems involving multi-dimensional data (12, 16, 20). The system correlates vectors in a first set with vectors in a second set. The system includes a plurality of input devices (24) for accepti... | 09/26/1995 |
| 5424839 | Method and apparatus for aligning visual images with visual display devices A method and apparatus is provided for ensuring that an image projected upon a visual display device is properly aligned with the viewing surface of the display device. Important to achieving the proper alignment is the use of a fluorescent ink which is v... | 06/13/1995 |
| 5425000 | Spatial rejection of direct blast interference in multistatic sonars A multistatic sonar system (50) employing a short duration automatic gain control (AGC) following beamforming of the return signal to reject spatial transients at the sonar waveform leading and trailing edges. The output of the beamformer (58) is delayed ... | 06/13/1995 |
| 5345522 | Reduced noise fiber optic towed array and method of using same A sensitive towed optical fiber sensor array 50, wherein the fiber sensors (60A-60N) are connected in parallel, and the optical fiber cable (34) is paid out from the towing ship at a velocity about equal to but opposite to the velocity of the towing ship.... | 09/06/1994 |
| 5327145 | Time delay passive ranging technique A method of passive ranging and geolocation of multiple emitters by a single detection platform. Two independent emission sequences support formulation of two independent algebraic equations involving a triangular arrangement of platform and emitters. One... | 07/05/1994 |
| 5324937 | Target for calibrating and testing infrared devices An improved target for testing and calibrating a detection device. The target (10) includes a metal substrate (12) with a first layer (14) of high emissivity material and a second layer (16) of low emissivity material are deposited thereon. In the specifi... | 06/28/1994 |
| 5325480 | Texture method for producing fluid effects in a real-time simulation A method of generating dynamically altering images which are capable of simulating fluid effects in real-time on a static scene. The method includes the steps of loading a plurality of graphical components, and repeatedly applying each of these graphical ... | 06/28/1994 |
| 5320538 | Interactive aircraft training system and method The system includes a computer (20), a detector (40) for detecting and tracking head orientation and head movement of an individual, a pair of tactile gloves (42, 44) which are donned by the individual (51) for detecting and transmitting to the computer (... | 06/14/1994 |
| 5319490 | Helmet mounted display including synchronously moving tilted mechanisms An improved helmet mounted display. The inventive display includes a laser and a fiber optic cable having an array having two sets of rows of optical fibers and being mounted to receive input from said laser at a input end and to illuminate a screen with ... | 06/07/1994 |
| 5317319 | Automatic global radar/IR/ESM track association based on ranked candidate pairings and measures of their proximity A tri-sensor track association based on ranked candidate pairs and measures of their proximity is described. The track association employs a three dimensional assignment scheme, simple enough to be implemented in real-time, which preserves the most accura... | 05/31/1994 |
| 5315538 | Signal processing incorporating signal, tracking, estimation, and removal processes using a maximum a posteriori algorithm, and sequential signal detection A system and method for automating signal tracking, estimation of signal parameters, and extraction of signals from sonar data to detect weaker signals. A maximum a posteriori (MAP) algorithm processing provides a track output of the signal which is used ... | 05/24/1994 |
| 5315692 | Multiple object pipeline display system A computer-controlled imaging system for providing a realistic representation of a three-dimensional scene on a two-dimensional medium in which multiple objects, viewed from several aspects and which may be combined informing a scene, are stored in digita... | 05/24/1994 |
| 5313789 | Solid fuel turbine power plant and method A low noise power plant (100) for providing thrust to a missile (102) having a solid fuel propellant (104) for generating a pressurized gas. A turbine (106) converts the pressurized gas to rotary motion and a drive shaft (108) transfers the rotary motion ... | 05/24/1994 |
| 5312027 | Precleaning of soldered circuit cards to prevent white residue Following soldering of electrical components on a circuit card in a soldering process that includes use of an aqueous-based flux, the circuit card, containing the soldered electrical components, is exposed to a dilute aqueous basic solution prior to a fin... | 05/17/1994 |
| 5311137 | Liquid crystal electric field tester for circuit boards A nondestructive noninvasive device and method for testing printed circuit boards (PCBs) through the utilization of a liquid crystal material which visually images the electric fields of the PCBs. Circuit faults resulting in a change of current flow in a ... | 05/10/1994 |
| 5307349 | TDMA network and protocol for reader-transponder communications and method A TDMA network for reader-transponder communications including a receiver having an antenna for receiving and transforming radiated energy to a first RF signal and a detector for demodulating and converting the first RF signal to a digital signal. A proto... | 04/26/1994 |
| 5307029 | Method and apparatus for generating multiple frequency tones using a digital frequency divider Generation of multiple, harmonically related frequency outputs is achieved using a digital asymmetrical harmonic waveform generator, such as a high speed digital frequency divider, for example. The digital frequency divider is used with a division ratio t... | 04/26/1994 |
| 5307069 | Improved radar receiver system An improved radar receiver having side lobe blanking and coherent side lobe cancellation circuits in the main receiver channel and a control arrangement that overcomes the conventional problem that the side lobe blanking circuit will also blank a noise ja... | 04/26/1994 |
| 5301613 | Power supply for an electrical circuit mounted on a projectile An improved power supply (10) for an electrical circuit (12) mounted on a projectile. The inventive power supply (10) includes a mechanism (14) on the projectile for generating electrical energy on the acceleration thereof. The energy is stored and releas... | 04/12/1994 |
| 5302959 | Single element driver architecture for ferrite based phase shifter A phase shifter subarray which is useful with a phased array antenna, includes a plurality of phase shifter elements which have substantially equal finite lengths and which are mounted on a ferri-magnetic substrate. An electrical coil is disposed around s... | 04/12/1994 |
| 5291209 | Coherent side lobe canceler The elimination of jamming signals from received radar signals is conventionally accomplished by side lobe cancellation techniques. Large interfering signals caused either by clutter or other sources, however, can cause intolerable degradation of coherent... | 03/01/1994 |
| 5287489 | Method and system for authoring, editing and testing instructional materials for use in simulated trailing systems The present invention provides an authoring tool (10) which simplifies the authoring and editing functions of a simulated training system. The authoring tool (10) utilizes a development tool and method (40) which condenses authoring, editing and testing i... | 02/15/1994 |
| 5286202 | Trainer using video photographs and overlays for reconfigurable hardware simulation A system (10) for simulating an operating environment, such as aircraft cockpit for use in training. The system (10) includes a video storage device (46) for storing and transmitting an image of the operating environment. The video storage device (46) is ... | 02/15/1994 |
| 5283828 | Architecture for utilizing coprocessing systems to increase performance in security adapted computer systems A security system adapted for use with a base computer 29 includes a security computer 31 for reading and writing data from memory in the base computer system 29, for transferring data to and from an encryption system 3, for transferring encrypted data to... | 02/01/1994 |
| 5281813 | Laser rangefinder test system An inexpensive, broadband technique for testing laser rangefinder systems. The invention includes a mechanism (18) for detecting an emission of a pulse of electromagnetic energy by a laser rangefinder under test (12) and providing a first signal in respon... | 01/25/1994 |
| 5276770 | Training of neural network for multi-source data fusion A method of training a multilayer perceptron type neural network to provide a processor for fusion of target angle data detected by a plurality of sensors. The neural network includes a layer of input neurons at least equal in number to the number of sens... | 01/04/1994 |
| 5270724 | Multifrequency phased array aperture A shared antenna aperture has two or more sets of interleaved antenna elements. Open-ended waveguides are used for the elements of the higher frequency antenna array and are selectively interconnected to form the elements of the other sharing antenna arra... | 12/14/1993 |
| 5270920 | Expert system scheduler and scheduling method A scheduling system and method for use with training systems. The exemplary embodiment of the scheduler is incorporated into an aircrew training system for a military aircraft. A training system for training aircrews involves the use of academic media suc... | 12/14/1993 |
| 5271038 | Distortion suppression using thresholding techniques A distortion suppressor and method for suppressing distortion that performs processing in the time domain to suppress partial time distortion of received signals, and/or the frequency domain to suppress partial band distortion of the received signals. For... | 12/14/1993 |
| 5270756 | Method and apparatus for generating high resolution vidicon camera images An efficient system for generating high resolution photogrammetric image data from a Vidicon camera. The Vidicon camera acquires sequential images of a scene and provides multiple overlapping frames of sequential image data corresponding thereto. A mechan... | 12/14/1993 |
| 5268657 | High performance oscillator circuit with minimum frequency pulling at power on A high performance oscillator with low frequency pulling at turn on includes an oscillator transistor, a resonating element and a common base buffer transistor. The resonating element of the oscillator is a circuit having a crystal resonator that is conne... | 12/07/1993 |
| 5267061 | Non-interfering viewing systems for use in catadioptric projection systems Selective light-transmitting filters for use with catadioptic area-of-interest display projectors and projection system provide complementary filters for two or more persons. One of the complementary filters permits all radiance at one predetermined, desi... | 11/30/1993 |
| 5267272 | Receiver automatic gain control (AGC) The invention is an automatic gain control (AGC) sampling structure in which a conventional closed loop AGC circuit detects a received level and generates a direct current voltage for controlling an amplification stage. This direct current voltage is samp... | 11/30/1993 |
| 5265203 | Hardware multiprocess scheduler in a graphics rendering processor An integrated hardware multiprocess scheduler for controlling a plurality of concurrently operating graphics generating subsystems required for the generation of display signals for a graphics rendering processor. In so doing, the hardware scheduler contr... | 11/23/1993 |
| 5264881 | Split static surround display system An inexpensive surround display system. In most general terms, the invention (10) includes a projector arrangement (12, 14, 16) for providing at least one beam of energy representative of an image. A beamsplitter arrangement (18, 20, 22) splits the beam i... | 11/23/1993 |
| 5264859 | Electronically scanned antenna for collision avoidance radar A millimeter wave antenna capable of electronic scanning for automobile collision avoidance radar. The antenna includes a linear ferrite loaded slot array which illuminates a dielectric lens. The antenna system has no moving parts. Beam scanning is achiev... | 11/23/1993 |
| 5264793 | Split array dipole moment detection and localization A dipole moment detection and localization process and apparatus in which the processing is applied to a single linear array adapted to sense magnetic dipoles, and wherein data from the sensors are processed as if it were derived from sets of subarrays of... | 11/23/1993 |
| 5265159 | Secure file erasure A method of securely deleting a file on a storage medium of a computer system so that it is not readable, wherein an encryption algorithm is used to encrypt the data in the stored file prior to a conventional deletion process. The present invention permit... | 11/23/1993 |
