RussianPatents.com
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Method for generating test signal incorporating probability distribution function. RU patent 2290748. |
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FIELD: measurement technology; generating test signals with preset probability characteristics. SUBSTANCE: proposed method for generating test signal incorporating desired distribution probability function F(x) concerning occurrence of instant test signal amplitude values x(t) depends on generation of original signal r(t) with uniform distribution of instant amplitude values within the range of 0 to 1 and its functional conversion; generated as original signal r(t) is determinated signal with period T0 for which purpose signal φ(t) varied obeying known law and using desired algorithm is functionally converted. EFFECT: enhanced precision of generated signal incorporating desired probability distribution function. 1 cl
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Method for concealing electromagnetic channels leaking speech signals in sound-amplifying equipment / 2277758 In accordance to invention, method includes generation, amplification and emission of concealing noise signal, and also substantial changes and additions, namely: noise signal is amplified in mode B or AB, pulse automatic-compensating stabilization of power amplifier powering voltage is utilized, stabilized voltage is filtered by upper frequencies filter, lower limiting frequency is higher than upper frequency of audible spectrum, but lower than frequency of pulse stabilizer. |
Random-wave oscillator / 2273088 Proposed random-wave oscillator that incorporates provision for nonlinear signal conversion independently of physical standard values of its circuit components has inductive component, two capacitors, resistor, and nonlinear impedance converter whose transfer characteristic is described by specified equation. |
Vector synthesizer / 2266566 Known vector generator, having noise generator, digital filters, connected to first input of adder, multiplexers, random numbers generator, n blocks of serial adders, control block, device for visual output, additionally has analysis block. Outputs of analysis block are connected to inputs of control block. Outputs of noise generator are connected to n blocks of digital filters, outputs of the latter are connected to inputs of n blocks of serial adders. Outputs of n blocks of serial adders are connected to n multiplexers, outputs of the latter are connected to device for visual output. |
Random-length pulse generator / 2261525 Proposed random-length pulse generator that can be used for signal simulation in data transfer systems and produces random-length pulses of desired statistical characteristics has frequency standard, delay line, multiplexer, pseudorandom number generator, adding unit, and flip-flop. |
Chaotic wave oscillator / 2256287 Proposed chaotic wave oscillator has negative-resistance nonlinear device, capacitor, two inductance components, and resistor; current-voltage characteristic of negative-resistance device is such that voltage across its terminals is unambiguous function of current flowing through this device. |
Vibroacoustic noise generator / 2253181 Proposed vibroacoustic noise generator that can be used in information protection systems to produce noise signal for blocking voice information interception from locations designed for secret negotiations has microphone, microphone amplifier, log amplifier, splitter, n band filters, n scramblers, n random pulse generators, adder, power amplifier, and radiator. Effectiveness of noise signal produced by generator is independent of generator location, acoustic properties of room, vibration properties of guarding structures and engineering services, and type of radiators connected to generator. |
Random-vibrations generator / 2246790 Proposed generator of integrated design that can be used as source of random electromagnetic waves has two resistors, two capacitors, negative-conductivity device, and negative-conductivity parallel RC circuit. |
Poisson pulse stream generator / 2246174 Proposed Poisson pulse stream generator has k + 1 memory devices, comparison unit, k digital-to-analog converters, control circuit, register, counter, selector, k bell-shaped pulse generators, adder, voltage-to-current converter, and clock generator. |
Device for reproduction of orthogonal functions / 2282891 Device contains three integrators, multiplication blocks, adder, inverter, analog-digital converter, five analog-digital converters of first group, three analog-digital converters of second group and two memory blocks. |
Functions generator / 2277718 Generator of functions contains set-point generator, block for forming Walsh functions, element of one-sided conductivity, two-bit shift register, two-input commutator, multiplier and 2n group multipliers. |
Walsh functions generator / 2275683 Generator has set-point element, NOT element, shift register, function number register, AND element, trigger, n-digit counter and additional AND element. |
Walsh functions generator / 2275683 Generator has set-point element, NOT element, shift register, function number register, AND element, trigger, n-digit counter and additional AND element. |
Functions generator / 2277718 Generator of functions contains set-point generator, block for forming Walsh functions, element of one-sided conductivity, two-bit shift register, two-input commutator, multiplier and 2n group multipliers. |
Device for reproduction of orthogonal functions / 2282891 Device contains three integrators, multiplication blocks, adder, inverter, analog-digital converter, five analog-digital converters of first group, three analog-digital converters of second group and two memory blocks. |
Method for generating test signal incorporating probability distribution function / 2290748 Proposed method for generating test signal incorporating desired distribution probability function F(x) concerning occurrence of instant test signal amplitude values x(t) depends on generation of original signal r(t) with uniform distribution of instant amplitude values within the range of 0 to 1 and its functional conversion; generated as original signal r(t) is determinated signal with period T0 for which purpose signal φ(t) varied obeying known law and using desired algorithm is functionally converted. |
Method to produce function of distribution of probabilities of initial signal of system / 2411578 Analytical method is created to produce signal probability distribution function (PDF) at the system output (initial system). This method is applicable, if: the system is described by analytical function; the system depends on accidental value; PDF of accidental value at the system input is available. There is an inverse function to function that describes system. Created method solves the following formal task. To produce PDF analytically for specified function y(x), if PDF of accidental value x in the interval [a,b] is available. |
Prokofyev self-oscillation generator / 2481696 Self-oscillation generator by Prokofyev includes an LC oscillating circuit, a scaling operating amplifier, a non-linear feedback that includes a resistive summing network for two inputs, a normally open fixed contact of an electronic switch of a pulse non-linear element that includes a RS trigger and two comparators, chains of introduction of special initial conditions of regulated oscillations (RO), which consist of a single toggle switch of RO+ and RO- modes, a double start-up toggle switch and resistors, control voltage potentiometer A, voltage sources, a start-up capacitor; regulated stabilised self-oscillations, which are steady-state as to amplitude at the output of the scaling operating amplifier, are determined with the specified ratios of parameters of the elements expressed in the form of mathematical expressions. |
Poisson pulse stream generator / 2246174 Proposed Poisson pulse stream generator has k + 1 memory devices, comparison unit, k digital-to-analog converters, control circuit, register, counter, selector, k bell-shaped pulse generators, adder, voltage-to-current converter, and clock generator. |
Random-vibrations generator / 2246790 Proposed generator of integrated design that can be used as source of random electromagnetic waves has two resistors, two capacitors, negative-conductivity device, and negative-conductivity parallel RC circuit. |
Vibroacoustic noise generator / 2253181 Proposed vibroacoustic noise generator that can be used in information protection systems to produce noise signal for blocking voice information interception from locations designed for secret negotiations has microphone, microphone amplifier, log amplifier, splitter, n band filters, n scramblers, n random pulse generators, adder, power amplifier, and radiator. Effectiveness of noise signal produced by generator is independent of generator location, acoustic properties of room, vibration properties of guarding structures and engineering services, and type of radiators connected to generator. |
Chaotic wave oscillator / 2256287 Proposed chaotic wave oscillator has negative-resistance nonlinear device, capacitor, two inductance components, and resistor; current-voltage characteristic of negative-resistance device is such that voltage across its terminals is unambiguous function of current flowing through this device. |
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