Abstract: A training system includes software installable on an instructor's computer for configuring a plurality of workstations networked thereto. The software is adapted to copy and install an indicated training module including a particular instruction functionality onto a selected student workstation. Once all the workstations are configured as desired, the instructor can invoke additional components of the system, including initiating a running of a training scenario from the instructor's computer on selected workstations. The training scenario includes input provided to the training module, to which a trainee responds, and the instructor can assess the response. A particular embodiment of the invention is for use in an environment wherein coordinated effort by a plurality of workers is required. Such environments may include, but are not intended to be limited to, a command center of a military location.

Abstract: A method and system for converting a sound signal containing a speech component and a noise component into recognizable language are disclosed, wherein the sound signal is transformed from a time domain into a frequency domain. Next the transformed signal is compared with a set of models of all possible sound signals to find a closest-matching known sound signal. A filter is then applied to the transformed signal. Here the filter corresponds to the model of the closest-matching known sound signal. Next a determination is made of an identity of the speech by searching a set of control data models to match a data model with the filtered transformed signal. Finally, a text stream representative of the determination is output, which enables a user not only to hear what may be a noisy voice message, but also to read the filtered message in some form, such as printed text or on a display screen.

Abstract: Sonar echoes of length s/c (cos .theta..sub.i +cos .theta..sub.r)+T are slated by transmitting properly timed replicas of an illuminating signal from a number of projectors spaced along a cable of target length s. Because of the length of this cable, magnetic anomaly effects can be simulated by passing a current through a conductor within it.

Abstract: The apparatus is an interactive, scenario based simulator for training a weapons team in close encounter combat. Employed is a large screen projection system, a plurality of trainee positions, and means to remove aggressor images when neutralized by the team, to provide an apparent threat to the trainees from the simulated aggressors, and to track each trainees performance throughout the training scenario.

Abstract: The apparatus is an interactive, scenario based simulator for training a pons team in close encounter combat. Employed is a large screen projection system, a plurality of trainee positions, and means to remove aggressor images when neutralized by the team, to provide an apparent threat to the trainees from the simulated aggressors, and to track each trainees performance throughout the training scenario.

Abstract: The apparatus is an interactive, scenario based simulator for training a weapons team in close encounter combat. Employed is a large screen projection system, a plurality of trainee positions, and means to remove aggressor images when neutralized by the team, to provide an apparent threat to the trainees from the simulated aggressors, and to track each trainees performance throughout the training scenario.

Abstract: The apparatus is an interactive, scenario based simulator for training a pons team in close encounter combat. Employed is a large screen projection system, a plurality of trainee positions, and means to remove aggressor images when neutralized by the team, to provide an apparent threat to the trainees from the simulated aggressors, and to track each trainees performance throughout the training scenario.

Abstract: Disclosed is a capability for training and other uses wherein a firearm can e aligned with its target by use of a laser beam, or the target can be designated to others by illuminating it with the laser beam. A laser diode that provides visible light is used in conjunction with the boresight of a gun to paint a visible spot on an intended target at the location the bullet will impact if the weapon were fired. The beam emitted by the diode is collimated by a miniature gradient refractive index lens co-located with the diode on a heat sink that is included to convey heat away from the heat sensitive components. A circuit having a photodiode and a differencing amplifier is included to provide stability in the output of the laser, in order to overcome the effects of thermal excursions, and to protect the reflective surfaces of the laser from power surges. The on-off switch is a pressure sensitive material removably attached to the gun in a convenient location for it to be operated by the user's gun hand.

Abstract: Apparatus and method are disclosed for achieving automated evaluation and oring of a participant's response to questions selected pseudo-randomly. A plurality of questions are available for each of a plurality of categories, in a question file. For each question there is an answer in an answer file. The answer includes characters preselected to denote a tolerance that permits a partially correct answer automatically to be credited to the participant's point total. A perfect answer is worth a predetermined full-credit value that is the same for each question; and, a partially correct answer that is within the tolerance for that question, is worth a predetermined fraction of the full-credit value. Pseudo-random selection of the questions from the question file is performed by a number generator that is seeded from the system's clock with the time of day that the system is activated.

Abstract: A sheave that has the advantage of being able to be quickly coupled to a le, and quickly decoupled from the cable. A further advantage is that the shaft of the pulley on which the cable rides is journaled at each end in side members that interlock when the sheave is in its closed position to support the shaft both from above the pulley, and from below. Other advantages include that the interlock is an arcuate T-shaped extension in the rotatable side member and a corresponding arcuate T-slot groove with which it engages in the stationary side member. The rotatable side member is affixed to the shaft of the pulley and is operable to rotate about the shaft from its closed and interlocked position to its open and disengaged position whereat the pulley is exposed such that the cable, cord or the like may be coupled or decoupled to the pulley.

Abstract: Means for removing contaminants from an air stream are disclosed that at the same time provides a cost effective apparatus for training firefighters. HOPCALITE is used to remove carbon monoxide while other compositions remove particulates, water and organic vapors, and carbon dioxide.

Abstract: A trainer for manually aimed weapons, having a projection screen video sym, a video disk player for providing pre-recorded scenes of a target image, a simulated weapon having actuable trigger, and a microprocessor having a file that identifies target location and range within each frame of the scenes and programmed to superimpose upon actuation of the trigger a graphic in-flight and impact image of a shot computed from a fourth order ballistics equation. Recoil of the simulated weapon is provided by pneumatics, as well as sound affects of the shot and its distant impact. Hit and miss explosions are provided in graphics selected from a set of stored image data by comparing the computed location of impact to the pre-identified target location. For shots that impact beyond the target, blanking of the graphics image is provided for that part of the explosion hidden by the target.

Abstract: A breathing bag apparatus and simulator is disclosed that has a circuitous and continuous tube within its bag(s) communicating outside air from an inlet filter and carbon-dioxide-conversion canister to the inhalation fixture of the user's facemask. A permanent carbon-monoxide-conversion cylinder forms part of the path of the tube within the bag(s). The cylinder uses porous ceramic pellets to host a coating of platinum as its catalytic noble metal.

Abstract: Apparatus and method for sonar or radar target tracking. Digital apparatus nd techniques are employed. A variable delay is used for beam steering.

Abstract: A valve within an oxygen breathing apparatus (OBA) simulator to simulate the loss of oxygen supply that occurs in an operational OBA when the user accidentally deflates the bag(s), such as by impact. The valve is within the tubular conduit inside the simulator's airbag and is held in its open position when the airbag is inflated by a cord attached to the inner surface of the bag, but is spring loaded to close and block the oxygen path through the conduit when the attachment cord is slackened.

Abstract: A system for detecting the presence of intruder targets in an area under ar surveillance and in which the number of normal targets may vary, including the processing of gated time sample receiver signals through a first monitoring circuit having a counter and comparator means to develop output signals representing deviation of actual time sample count from a normal reference count, and through a second monitoring circuit including additional counter and count trigger means for developing an alarm signal responsive to continued deviation of actual count from reference count over several actual counts in a time sequence of counts such that normal variation of target number will not produce an alarm signal.

Abstract: A software controlled generic radar display system using a microcomputer ing a high performance graphics card that drives a high resolution color monitor which displays the radar sweep, compass rose, front panel symbology and diagnostic information. A target generator provides simulated target information that is displayed on the monitor in standard PPI format.

Abstract: A mechanical apparatus for training is disclosed that reduces the flow of r or oxygen in an oxygen breathing apparatus (OBA) to simulate the effects of an empty oxygen canister. A timer mechanism is coupled to a butterfly valve in the air passageway of the OBA. After a preselected period of time that corresponds to the alarm setting on an operational OBA that signifies a low-oxygen status, the timer mechanism begins to wind the valve into its closed position.

Abstract: A series of perforated plates are placed in alignment with a horizontally sposed burner tube and canted to spread the flame from the burner both axially and transverse the axis of the tube. Each perforation is accompanied by an upper scoop that extends downward and toward the tube to direct some of the upward flowing flame through the perforation. Thereby, the flame is spread in both length and width to cover a larger grating surface above the tube.

Abstract: Linear frequency modulation having a large time-bandwidth product and an remely linear frequency versus time waveform, is provided by a feedback technique utilizing a linear ramp voltage generator whose output is summed with a correction voltage to drive a voltage controlled oscillator to output the LFM waveform. Part of the LFM waveform is fed back through a digital discriminator for error signal generation and comparison with a preset value associated with the output slope linearity, thus yielding the basis for generating the correction voltage.