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R & D Associates Patents
Assignee:
R & D Associates
Address:
Los Angeles, CA
No. of patents:
22
Patents:




Patent Number Title Of Patent Date Issued
5276771 Rapidly converging projective neural network January 4, 1994
A data processing system and method for solving pattern classification problems and function-fitting problems includes a neural network in which N-dimensional input vectors are augmented with at least one element to form an N+j-dimensional projected input vector, whose magnitude is then
5045860 Method and arrangement for probabilistic determination of a target location September 3, 1991
According to a target locating method and system, each of a plurality of sensing stations, for example HFDF sensors, senses a nominal value of a predetermined measurement variable such as a bearing, differential times of arrival, etc., relating the location of a potential target in a tar
4912738 Magnetically energized pulser March 27, 1990
A diode pulser is described which comprises a diode and an inductor connected in series, the impedance of the diode being controllable to suddenly increase the impedance to produce a high voltage pulse across the diode. The diode includes concentric electrodes forming a gap between them
4897660 Structure resonant radar detection apparatus and method January 30, 1990
Certain man-made structures located in a complex background, such as railroad ties, telephone poles, and fences are detected by a flying craft, using a low powered structure resonant radar system. The radar system transmits a radar signal which includes wavelengths of the same order of
4852170 Real time computer speech recognition system July 25, 1989
Speech may be analyzed digitally and recognized in real time by a system which includes a spectrum analyzer which determines the frequency content of successive segments of speech. Each speech segment is logically analyzed to identify the class of phonemes of which it is a part, and then
4816832 Continuous repeater target dental device March 28, 1989
A circuit is described which receives enemy radar signals in the form of encoded bursts or pulses, and which immediately generates and transmits, in sequence, a large number of target denial signals which are similar to the received signal. The transmitted signal masks signals from frien
4725144 Optic element testing method and apparatus February 16, 1988
A system is described for testing aspheric optic elements by the interference of light beam components that are respectively directed to the element to be tested and to a reference element, which facilitates the testing. A reference element is deformable in a controlled manner to more
4603553 Ballistic cold water pipe August 5, 1986
In order to bring cold water from the depths of a body of water, a long pipe is extended into the body of water. Arrangements are provided for pumping the water out of the pipe. A nozzle is then provided to direct a stream of water up through the pipe at high velocities, without touching
4589070 Airborne wind shear response system May 13, 1986
An aircraft is provided with wind velocity measuring equipment which measures the wind velocity both (1) close to the aircraft and (2) at a considerable distance such as one-half mile or a mile away from the aircraft; and a large difference in these two measured velocities indicates
4523748 Very high pressure apparatus for quenching June 18, 1985
A method and apparatus is provided for rapidly "pressure quenching" or reducing the pressure on samples from very high pressures at rates substantially in excess of 10.sup.6 up to 10.sup.10 bars, or atmospheres, per second, or more, while avoiding damage to the high pressure system.
4523100 Optical vernier positioning for robot arm June 11, 1985
An improvement to computer control robot arm assemblies having a work head on the free end thereof for allowing the work head to be positioned and held within closer tolerance limits to a desired coordinate position. The work head is attached to the robot arm by a vernier control assembl
4458577 Acceleration apparatus with annular projectile accelerated thereby July 10, 1984
A high power source of electrical energy, such as a homopolar generator, is connected to a longitudinally extending coaxial structure which forms a gun barrel. Within the gun barrel toward the end to which the power supply is connected is mounted a coaxial projectile, or several projecti
4442065 Retrofittable nuclear reactor core catcher April 10, 1984
A passive "core catcher" is provided for preventing the escape of radiation in the unlikely event of a major failure of a nuclear reactor by melt-down of the core. The "core-catcher" structure includes a narrow vertically downwardly extending isolation tube, and aligned narrow heat-excha
4441321 Compact mist flow power generator April 10, 1984
An ocean thermal energy converter (OTEC) generates electricity from warm surface water in dropping 100 meters or so, and then raises it back to the surface using its own thermal energy in a large floating vacuum chamber. The mist flow process as described in U.S. Pat. No. 4,216,657 is em
4414812 Hot air solar engine November 15, 1983
A hot air solar engine has two heat engines at opposing ends of a common piston assembly to provide alternate cooperative expansion and compression action. Each of the heat engines has a compressor and an expander wherein a single dual-diameter piston head serves as the piston portion of
4392438 Coal transport system July 12, 1983
Coal energy is delivered from the mine to a distant point of use by a system involving the pulverization of the coal at the mine, and carrying it as a nonexplosive suspension in a pipeline or conduit, with high pressure coal gas which is made at the mine being employed as the transpo
4359118 Engine system using liquid air and combustible fuel November 16, 1982
An engine system operates on liquid air and LNG, with the LNG being burned to obtain more energy from an expansion engine using the liquid air as the working fluid; and the liquid air is employed to trap or prevent the undesired venting of LNG fumes, which could otherwise burn or explode
4354565 Engine system using liquid air and combustible fuel October 19, 1982
An automobile engine runs on liquid air plus a small amount of solid or liquid fossil fuel. The liquid is an efficient method of storing the energy of liquefaction. To get extended range and use of energy effectively some fuel is used to increase the temperature of this gas before it
4246477 Artificial and solar lighting system January 20, 1981
A sunlight collector, containing a Fresnel lens, is mounted on the roof of a building and tracks the sun during daylight hours. A concentrated beam of sunlight is directed through a light transmission channel to locations within the building where the light is distributed. The transmissi
4226294 Engine system using liquid air and combustible fuel October 7, 1980
An automobile engine runs on liquid air and gasoline. The liquid air is initially pumped up to a high pressure such as 200 atmospheres (or 200 bars) and is then warmed toward the ambient temperature in a heat exchange and changes to the gaseous state. Subsequently, it is permitted to exp
4216745 Unthrottled lean mixture gasoline engine August 12, 1980
A gasoline internal combustion engine is operated at all times with a full charge of air and is thus unthrottled. At low power levels for such an engine, the ratio of gasoline to air is too lean for normal combustion; therefore, special arrangements are provided by this invention for
4216657 Mist flow ocean thermal energy process August 12, 1980
Power is generated using the temperature difference between the water at the surface of a large body of water whose temperature might be in the vicinity of 25.degree. C. or 77.degree. F., and water at considerable depth in the body of water whose temperature might be in the order of

 
 
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