Abstract: An generator/motor that initially uses external power to spin a partially submerged low drag fluid distributor rotor that uses centrifugal force to cause fluid to flow from the center of rotation, through a plurality of Euler curved penstocks, allowing the fluid to flow in a true radial direction through a high “g” artificial gravity field, which dramatically increases the fluid's kinetic energy and released available power (Pa), before it is guided out tangentially from the distributor via a plurality of nozzles symmetrically located at a small height just above the reservoir surface (near zero lift). As the frequency of the rotor is increased linearly the fuel artificial gravity increases exponentially, as does the fluid dynamic available power (Pa).

Abstract: An Artificial Gravity Fueled Fluid Dynamic Day Energy Generator/Motor that initially uses external power to spin a partially submerged low drag fluid distributor rotor that uses centrifugal force to cause fluid to flow from the center of rotation, through a plurality of Euler contoured penstocks, in a true radial direction through a high “g” artificial gravity field, which dramatically increases the fluid's kinetic energy and releases available power, before it is guided out tangentially from the distributor via a plurality of nozzles symmetrically located at a small height just above the reservoir surface (near zero lift). As the frequency of the rotor is increased linearly the fuel Artificial Gravity increases exponentially, as does the fluid dynamic available power Pa. Turbine runners on the rotor assembly capture the available power, and a positive feedback mechanical transmission couples the captured rotational power to the I/O shaft in its initialized direction.

Abstract: A system that partitions or divides the functions of a radio into channels and divides the functions of each channel into two major functions: 1) antenna interface and power amplification; and 2) hardwired mixing, modulation/demodulation and signal processing and further partitions the mixing through signal processing functions into the functions of a) programmable analog mixing and b) programmable digital modulation/demodulation and signal processing. Control and user interface functions, if needed for a particular application can also be functionally partitioned.

Abstract: A common transmit module of a programmable digital radio has a digital submodule which receives a bit stream and produces a modulated IF signal, and an analog submodule which receives the modulated IF signal and converts the modulated IF signal to a frequency corresponding to a specific type of radio function. The digital submodule includes (a) a sequential/parallel instruction set processor for signal processing and control, (b) a reconfigurable format unit, and (c) a modulator which receives the output signals of the reconfigurable format unit and produces the modulated oscillation signal.

Abstract: A digital submodule is included in a software programmable common receive module for receiving IF signals and producing a serial bit stream. The digital submodule is programmable based on a selected application of a plurality of radio applications and, if present, a selected function of a plurality of functions of the selected radio application. The digital submodule may include an analog to digital converter for converting IF signals received from an analog submodule into digital signals. The digital signals are supplied to a programmable signal processing unit which is configured, according to the selected radio application and, if present, the selected function, to perform control functions, processing and analysis of the digital signals and generate output signals. The output signals are then formatted by a formatting unit producing formatted digital signals. The formatted digital signals are then supplied to a system bus.

Abstract: A wideband RF-to-IF frequency converter providing multiple use of frequency conversion components for many different types of RF input signals. In specific examples, many different types of signals for communication, navigation, and for interrogation are processed through at least partly common frequency-conversion channels. Such RF input signals in the range from approximately 2 MHz to 2,000 MHz are converted to output IF frequencies, such as 1 MHz and 30 MHz, for further processing in the common receiver. Some narrow band signals, after conversion to IF, are subjected to off-center filtering in relatively broadband IF filters. Input RF filters are not used. Among several frequency conversion stages, only one of the local oscillator signals is tunable; but it is made tunable in relatively small, precise steps by using a double phase-locked loop arrangement in the frequency synthesizer.

Abstract: A memory access system for a computer is improved by combining look ahead techniques with a partitioned memory. A parallel system operating in reciprocal fashion accesses from one portion while the other portion is generating the next predicted address. The system can also be adapted for use with virtual addressing.

Abstract: A stand-alone digital processor based system includes a five-output state digital filter provided with magnitude and time data relative to a received TACAN signal. Threshold detection is provided for validating the received signal magnitude. The filter outputs produce phase signals which are combined in the digital processor, in accordance with an algorithm, to generate bearing data. The bearing data is stored and scaled prior to updating a display.

Abstract: A solid state synchro torque receiver driver that uses unfiltered AC as the power source and push-pull regulating transistors operating in the linear mode to drive the torque receiver stator loads. A feedback amplifier compares the push-pull outputted AC signal against an inputted AC data reference (i.e. the desired stator excitation amplitude) and thus closes the loop forcing the output to follow the input. The synchro torque receiver operates in a closed loop and thus has realizable potential of near infinite resolution and high accuracy.

Abstract: High accuracy distance measurements are achieved with a low accuracy Tacan set by utilizing signals available within the Tacan set at a point of sufficient accuracy to provide accurate distance measurements to be made and thus upgrade an en-route navigation aid to higher accuracy for use in a precision landing system.

Abstract: A signal conditioning circuit for a fixed rise time, variable amplitude receiving system (TACAN) that digitizes the time of arrival and samples the pulse amplitude at the receiver's last intermediate frequency (IF) stage before video detection. The time of arrival measurement is performed by counting a fixed number of successive threshold crossings of the IF carrier, utilizing a pair of comparators having two inputs each. One input of each comparator is coupled to the IF stage. The other input of each comparator is coupled to a point of reference potential, one comparator being referenced to ground and the other being coupled to a small positive threshold voltage level. The output of the grounded comparator is delayed, and the delayed output is used as a clock signal to the remaining circuitry. The output of the threshold comparator provides data pulses, one data pulse being generated each time that the IF signal goes above the threshold value.