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Invention relates to radio engineering and electronics and can be used to protect information of computer equipment, automated workstations and wire lines from information leakage as a result of stray electromagnetic radiation and cross talk. The noise signal generator has two outputs which are controlled based on signal strength. The additional noise signal generator used is an impact avalanche transit time noise diode with an amplifier and a variable resistor for controlling the additional noise signal strength, and the emitting low-frequency element used is an inductance coil with distributed parameters, which enables to generate the low-frequency part of the magnetic component o the electromagnetic field of the noise signal. |
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Acoustic noise generator includes a control unit, a display unit, an inspection unit, a power supply and battery charge unit, a battery, a low-frequency signal generator and rotation actuating unit, wherein the low-frequency signal generator is in form of a cylindrical housing, on the inner surface of which there are uniform protrusions; a rod is placed in the housing in line with the axis of the housing, with the possibility of rotation, where the same ends of bearing elements are rigidly attached, and the other ends are fitted with first contact elements with the possibility of translational displacement thereof along the bearing elements and with the possibility of interaction with protrusions of the housing; on the outer surface of the housing there are uniformly arranged second contact elements, with the possibility of interaction thereof with the housing, wherein the rod of the low-frequency signal generator is kinematically connected to the rotation actuating element. |
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Electrically controlled millimetre wavelength range modulator-calibrator Electrically controlled millimetre wavelength range modulator-calibrator has a waveguide insert accommodating an external current source-controlled monolithic integrated circuit (MIC), consisting of a row of parallel circuits of series-connected GaAs Schottky barrier diode and a rectifier, wherein the waveguide insert with said MIC and the rectifier are placed in a temperature-controlled cabinet, and the sensitive element of the temperature-controlled cabinet is a temperature sensor mounted on the housing of the waveguide insert. |
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Result is achieved by using a second parallel nonlinear oscillatory circuit connected to a first. By using new components, the device has a wider range of irreversible nonlinear transformations of the initial signal. The capacitive and inductive coupling between the two circuits enables to control the level of distortion of the initial signal. |
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Generator of chaotic oscillations Generator of chaotic oscillations comprises the first and second dipole elements with a capacitance resistance, a dipole element with an induction resistance, a non-linear resistive element and a device with a negative resistance. |
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Digital generator of chaotic signal Invention relates to the field of radio engineering and may be used in contemporary, noise-protected and confidential systems of information protection to develop a noise signal, in control and measurement systems for measurement of frequency characteristics, and also in coding systems for generation of random numbers and sequences. The invention consists in the fact that the device comprising a clock pulse oscillator, an N-digit shift register, a summator by module two, a start circuit, and besides, the output of the clock pulse oscillator is connected with the input "C" of the shift register, the output of m digit of which is connected with the first input of the summator by module two, the second input of which is connected with the output of the circuit of start and initial initialisation of shift register, one of inputs of which is connected with the output of the last digit of the shift register, the input "D" of which is connected with the output of the summator by module two, additionally comprises an analog chaotic generator G1, a controlled source of reference voltage and an analog comparator DA1 of the level of the chaotic generator signal with the level of the reference signal, set by the controlled source of reference voltage, arranged on a potentiometer R1. |
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Generator of hyperchaotic oscillations Generator of hyperchaotic oscillations comprises the first and second dipole elements with capacitance resistance, the first and second dipole elements with inductance resistance, a resistor and a non-liner impedance converter. |
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Generator of chaotic signal with permanent amplitude (versions) Device for generation of a chaotic signal with permanent amplitude comprises two generators; a clocked reading amplifier, producing output signals in a coding "with return to zero"; a logical element OR; at least two inverters, at the same time outputs of generators are connected to inputs of the reading amplifier, two outputs of the reading amplifier are connected to inputs of the logical element OR, which is connected to the input of the first inverter, the output of which via at least one additional inverter is connected to the input of a sync pulse of the reading amplifier, the output of the first inverter is connected to an output circuit. |
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Generator of chaotic oscillations Generator of chaotic oscillations comprises the first and second dipole elements with an induction resistance, a dipole element with a capacitance resistance, a resistor, a non-linear impedance converter and a device with a negative resistance. |
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Method consists in generation of a noise signal and its mixing with an additional signal with subsequent use of a signal produced as a result of mixing as a masking signal, an additional signal is a clock signal of the information processing system (IPS). The device comprises a noise signal generator, an amplifier, a signal frequency converter, such as a unit of the information processing system clock frequency, and a signal frequency converter is a mixer of a noise signal and a signal of the information processing system clock frequency. |
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Chaotic vibration generator includes bipolar element with inductive reactance, the first and the second bipolar elements with capacitive resistance, resistor, the first non-linear impedance converter of the first type, the first bipolar element with capacitive resistance includes the first linear capacitance element and the first non-linear impedance converter of the second type, the second bipolar element with capacitive resistance includes the second linear capacitive element and the second non-linear impedance converter of the second type, bipolar element with inductive reactance includes linear inductive element and the second non-linear impedance converter of the first type. |
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Generation method of chaotic super-high-frequency pulses Non-linear passive element having inverse dynamic characteristic, frequency-selective element and variable attenuators are introduced to feedback circuit of self-oscillator of chaotic SHF signals; self-oscillator is tuned to generation mode of chaotic SHF signal with power level which is higher than threshold level of non-linear passive element; frequency bandwidth of frequency-selective element is chosen so that suppression level of spectrum components of signal of low power level relative spectrum components of high power level is constant within the whole bandwidth, and following period of chaotic SHF pulses is controlled by the change of attenuation value of attenuators. |
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Generation method of chaotic high-frequency and super high-frequency broadband oscillations Generation method of chaotic high-frequency and super high-frequency broad-band oscillations is characterised by the fact that it involves formation of laminar electron flow, its conversion to turbulent flow by modulation owing to impact of non-homogeneous electric and magnetic fields, amplification of chaotic broad-band high-frequency and super high-frequency oscillations of turbulent electron flow and their pickup through output of HF and SHF energy. |
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Chaotic vibration generator includes the first and the second capacitive elements, inductive element, resistor and non-linear impedance converter. |
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Chaotic vibration generator includes double-pole element with inductive resistance, double-pole element with capacitive resistance, double-pole element with negative capacitive resistance and device with negative conductivity. |
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Generator of chaotic oscillations Generator of chaotic oscillations comprises two resistors, two condensers, induction element, non-linear impedance converter, non-linear current converter and two non-linear voltage converters. |
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Wide-range annular voltage-controlled producer Producer supports constant signal amplitude of symmetrical oscillation, which is equal to power supply voltage and is capable of quick readjustment within the operating range. Producer consists if CMOS inverters with controlled switching current, which are combined in a ring, which provides negative feedback as to direct current. Inverter includes the following: the first, the second and the third P - channel transistors and the first, the second and the third N - channel transistors, gates of the first P - channel transistor and the first N - channel transistor are connected and form the input In of inverter, sinks of the first P - channel transistor and the first N - channel transistor are connected and form output Out of inverter, source of the first P - channel transistor is connected to the sink of the second P - channel transistor the source of which is connected to VDD line of power supply voltage, source of the first N - channel transistor is connected to the sink of the second N - channel transistor the source of which is connected to GND ground line, to the gate of the second P - channel transistor there supplied is control voltage of P - channel transistor, to the gate of the second N - channel transistor there supplied is control voltage of N - channel transistor, the gate of the third P - channel transistor and the gate of the third N - channel transistor are connected to inverter output, the source of the third P - channel transistor is connected to the sink of the second P - channel transistor, the sink of the third P - channel transistor is connected to ground line, the source of the third N - channel transistor is connected to the sink of the second N - channel transistor, the sink of the third N - channel transistor is connected to power supply voltage line. |
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Random microwave pulse generator Random microwave pulse generator includes microwave amplifier, directional coupler and load, feedback circuit containing resonator which is linear, and delay line with ferrite film, which is made in the form of non-linear dispersive delay line on magnetostatic waves. |
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Generator of random oscillations with inertial nonlinearity Proposed invention relates to radio-electronics and can be used as source of random electromagnetic oscillations. The generator of random oscillations with inertial nonlinearity has an operational amplifier, the negative feedback circuit of which has a variable resistor and a first field-effect transistor, the input of which is connected to the output of the operational amplifier through a Wien RC-circuit and to the input of a second operational amplifier, the output of which is connected to the input of a nonlinear inertial converter, with the output of the nonlinear inertial converter connected to the input of the field-effect transistor. |
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Generator of broadband frequency-modulated signal Invention concerns radio engineering and application as shapers of noises in transmitters of noises of different function, and also in radio communication resorts can find. Generator of the broadband frequency-modulated signal contains the shaper modulating oscillations and the self-oscillator, the generator of a signal with a continuous spectrum, the multiplication block, a loading, thus the shaper modulating oscillations are contained by the shaper of the normalised noise, the shaper of sawtooth impulses, the shaper of a white noise and the adder, and the self-oscillator contains the tunable shaper of a constant voltage and the generator controllabled a voltage. |
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Parametric generator of traveling wave of stochastic oscillations Parametric generator of traveling wave of stochastic oscillations contains non-linear amplifier, inertial unit, 1, ..., nth units of non-linear elements, band-pass filter of the second order and pumping oscillator. |
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Generator of artificial traffic Invention is related to radio engineering and communication, may be used in modeling and testing of telecommunication systems, in particular, local computer networks at the stage of design. Random sequences generated in this invention make it possible to imitate the load with property of self-similarity. In generator of random signals, which contains noise generator, the first device of selection and storage, generator of ramp voltage, the first comparison circuit, delay element and RS-trigger, the following components are introduced: additional generator of noise, the second device of selection and storage, the second comparison circuit, reconfigurable clock pulse generator and switch. Invention may be used for long-term prediction of self-similar load during synthesis of communication network control system in aspects of intranet organisation. |
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Method of generating pseudorandom signal chaotic sequence Proposed method incorporates generating chaotic sequence of pseudorandom signals by numeric integration of a non-linear set of differential equations with the dynamic chaos and the variable step of time count directly proportional to the depth of modulation and the control effect time function. |
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Superhigh frequency wide band random signal generator According to proposed design, SHF wide band random signal generator, represents series-connected SHF wide-band amplifier, directional coupler, load, and feedback circuit connected between the other output of directional coupler and input of SHF wide-band amplifier and containing nonlinear element. The latter is designed in the form of magnetic field regulated wide band nonlinear pass-band filter on magneto-static waves, having incident area of amplitude characteristic and simultaneously providing delay of signal travelling in feedback circuit. |
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Method of generation of wide-band shf chaotic signals and generator of wide-band shf chaotic signals Invention relates to generation of the wide band SHF chaotic signals and may be used in communication, radars, instruments. The method allows reducing the irregularity of spectral characteristic and features a consecutive signal amplification by, at least, two amplification stages, the first operating in a minor amplification mode, while the other one, in a mode of nonlinear amplification. The signal is limited after amplification in the third amplification cascade which operates in a limiting mode. A part of the signal, after limitation, is branched off in the load, and the part of signals left after branching off is sent to the first amplification cascade. The generator incorporates the first and second amplification cascades, the limitation cascade made as the third amplification cascade, and a microband coupler. |
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Generator of chaotic oscillations Generator of chaotic oscillations contains resistor, capacitor, two inductive elements and nonlinear impedance transformer. |
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Device and method for generation of chaotic signal with constant amplitude Constant amplitude chaotic signal device contains an array of triangular shape signal generators, composed of n individual triangular shape signal generators, where n is more than one, adder of signals, controller of amplitude of total signal, regulator of average value of signal, ensuring possible control over average frequency, sinusoidal generator, controlled by voltage. Method for producing chaotic signal with constant amplitude is characterized by following operations: a set of triangular shape signals is generated with symmetric frontal and back fronts; aforementioned set of signals is totalized to form a single composite signal, consisting of sections with linear alternation of voltage; required amplitude of composite signal is set by application of controlling voltage; average composite signal frequency value is set by applying controlling voltage; by means of resulting composite signal, chaotic change of frequency of sinusoidal voltage-controlled generator is performed. |
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Proposed random-wave oscillator has inductive component, capacitor, resistor, negative-resistance unit, and nonlinear capacitive component. |
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Device and method for generation of chaotic signal The device has a group of independent pulse generators, OR gates, a group of independent sinusoidal oscillators and an adder. A binary signal with a pseudorandom phase manipulation is formed in the method, this signal is used for switching-on and switching-off of the sinusoidal oscillators, the signals of the sinusoidal oscillators are summed up in the adder with formation of a chaotic signal at its output. |
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Proposed noise generator has DC supply connected to electric current conductor made in the form of insulated wire many times folded up at angles of 180 deg. so that all bends are disposed on same plane in tight contact to one another; this electric current conductor is placed in cryostat. |
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Proposed noise generator that can be used in small-size noise transmitters and data protection systems for blocking mobile telephone communications by generating masking noise has n amplifying components and two integrated feedback-interconnected multiple-resonant oscillatory systems. |
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Method for generating test signal incorporating probability distribution function 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. |
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Method for concealing electromagnetic channels leaking speech signals in sound-amplifying equipment 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. |
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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. |
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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. |
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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. |
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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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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. |
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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. |
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Poisson pulse stream generator 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. |
Another patent 2513123.