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8159280 |
Noise generator
A noise generator for generating band-limited noise from a plurality of sinusoidal signals at the same level and equidistant frequency position in the noise spectrum is provided. A noise signal has...
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8143959 |
Jitter generation apparatus, device test system using the same, and jitter generation method
A jitter generation apparatus for applying a phase modulation to a PLL is controlled by a control unit so as to output a signal with the desired jitter based on a parameters. When a switching unit...
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8130955 |
Random number generation through use of memory cell activity
Systems and/or methods that facilitate security of data are presented. A random number generation component generates random numbers based in part on electron activity in a select memory cell(s) to...
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8089321 |
Fluctuation oscillator, fluctuation oscillating system, observation device and control system
Four stochastic resonators 20-1 to 20-4 outputting a pulse signal in accordance with a stochastic resonance phenomenon are unidirectionally coupled in a ring-like form to constitute a fluctuation...
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8085101 |
Spread spectrum clock generation device
A spread spectrum controller (20) controls a PLL (10) so that the PLL outputs a spread-spectrum processed clock signal. A loop bandwidth controller (30) controls at least one of a phase detector...
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8073631 |
Device and method for responding to influences of mind
In the field of direct mind-machine interactions, prior art devices and methods do not provide sufficiently fast and reliable results. Mental influence detectors (100, 140, 400, 430) and...
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8072277 |
Spread spectrum frequency synthesizer
A frequency synthesizer is described illustrating a method for modulation having an adjustable standard curve used to modulate an input signal for spread spectrum modulation. In particular, the a...
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8049571 |
Frequency-jittering apparatuses, frequency-jittering methods and power management devices
A frequency-jittering apparatuses includes an oscillator and a frequency control circuit. The oscillator generates a signal. When the magnitude of the signal exceeds a magnitude of a reference...
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8031015 |
Phase-locked loop circuit
A PLL circuit is disclosed that comprises a controlling unit that switches at a predetermined timing to enable/disable the phase difference signal supplied from the phase comparator to the low pass...
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8005212 |
Device and method for performing a cryptoalgorithm
A device for executing a cryptoalgorithm including a central processing unit for a first sub-group of operations and for a flow control of the cryptoalgorithm as well as a hardware circuit for a...
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8005215 |
Table shuffle cipher system
A system including a pseudo-random number generator having a register to store an extended state having a reduced state and a dynamic constant, an initialization module to initialize a part of the...
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7979482 |
Random number generator configured to combine states of memory cells
A random number generator includes a plurality of memory cells arranged in a series, a feedback processor for generating a feedback signal and for feeding the feedback signal into one of the memory...
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7961059 |
Phase lock loop control system and method with non-consecutive feedback divide values
A phase-locked loop control system and method are described. Present invention phase-locked loop control systems and methods facilitate control of phase-lock loop operations. In one embodiment,...
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7948327 |
Simplified phase lock loop control model system and method
A phase-locked loop control system and method are described. Present invention phase-locked loop control systems and methods facilitate control of phase-lock loop operations. In one embodiment,...
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7932787 |
Phase lock loop control system and method
A phase-locked loop control system and method are described. Present invention phase-locked loop control systems and methods facilitate control of phase-lock loop operations. In one embodiment,...
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7933559 |
RF test chamber
A system for testing radio frequency (RF) communications of a device capable of such communications is provided. The system includes a chamber for isolating the device from RF interference, an...
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7893779 |
Modulated supply spread spectrum
A system reduces a received RF signal from EMI generated by a digital electronic system that includes a clock. In the present invention the clock frequency, that generates signals and strobes data...
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7864910 |
Phase locked loop
A PLL is provided with an optimum operating point in order to have appropriately a frequency margin and a locking time. There is provided a phase looked loop which includes: a frequency divider for...
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7852162 |
Pseudo random noise device based on a random frequency modulated oscillator
Random number generators are used for entertainment in gambling, lotteries and video gaming devices. True Random Number Generators, as are now currently defined, must be actuated by a physical...
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7843278 |
Frequency jitter generation circuit
A frequency jitter generation circuit having a voltage generator and an oscillator circuit is provided. The voltage generator receives an input voltage and converts the input voltage into an upper...
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7830214 |
Adjustable chaotic signal generator using pulse modulation for ultra wideband (UWB) communications and chaotic signal generating method thereof
An adjustable chaotic signal generator using pulse modulation for UWB communications, and a chaotic signal generating method thereof are provided. The chaotic signal generator for UWB...
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7830213 |
Signal generator, signal generation method, and RF communication system using the same
A signal generator, a signal generation method, and a communication system using the same are provided. The signal generator includes a plurality of nonlinear elements which are connected in a...
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7795983 |
Chaotic signal enabled low probability intercept communication
A circuit for generating chaotic signals implemented using heterojunction bipolar transistors (HBTs) and utilized in low probability intercept communications. The HBT chaotic circuit generates...
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7786815 |
Apparatus and method for generation of noise signal
An apparatus and method for generation of a noise signal are provided. The apparatus includes a noise synthesizing module and a noise signal transfer module. The noise synthesizing module includes...
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7760035 |
Noise-generating device and method
The invention relates to the field of devices intended to generate a noise of high amplitude having specific spectral characteristics. It concerns a transmission device mainly comprising a...
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7741918 |
System and method for an enhanced noise shaping for spread spectrum modulation
A frequency synthesizer is described. In particular, the frequency synthesizer includes a modulator circuit for producing a signal of modulated frequency. The frequency synthesizer includes an...
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7719371 |
Spread spectrum clock and reference signal generator
Exemplary embodiments of the invention provide a system, method and apparatus for spread spectrum functionality for a free-running, reference harmonic oscillator. In an exemplary embodiment, an...
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7692502 |
Oscillatory system and method for controlling an oscillatory system of this type
The invention relates to a method for controlling an oscillatory system with the aid of at least one measured variable by the detection of at least one oscillation component (Sx(t)) over time (t)...
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7692503 |
Random number generator based on oscillator noise
Embodiments of the invention are generally directed to systems, methods, and apparatuses for a random number generator (RNG) based on oscillator noise. In some embodiments, the RNG buffers effects...
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7675369 |
Frequency hopping oscillator circuit
A method for controlling a frequency output of a phase locked loop (PLL) is provided. The method includes providing digital control words to the PLL to discretely change at least one dividing...
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7642870 |
Device and method for generating an adjustable chaotic signal
A device and method for generating an adjustable chaotic signal are provided. The chaotic signal generation device includes a plurality of triangle pulse train generators which generate a plurality...
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7616071 |
PLL circuit and semiconductor device provided with PLL circuit
Disclosed is a PLL circuit of a small circuit size capable of generating clock including a jitter component with ease. A phase comparator 11 compares the phase of an input reference clock signal...
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7602219 |
Inverting cell
An inverting cell including a first inverter having first and second inputs; a second inverter having first and second inputs, wherein the second input of the second inverter is connected to the...
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7583155 |
Random sequence generator
A device for generating a random sequence (10) of bits is disclosed. The device comprises oscillating means (13), which will generate a random sequence of bits when biased with a noise signal. The...
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7580472 |
Generation and detection of non-binary digital sequences
Method and apparatus for generating ternary and multi-valued Gold sequences, are disclosed. Also methods to detect ternary and multi-valued sequences are disclosed. The detection can be performed...
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7576620 |
Pseudo random clock generator
A pseudo random clock generator includes a clock generator for generating a clock signal. A pseudo random code generator receives the clock signal and thereby generating a pseudo random code. A...
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7541885 |
Infinite radio frequency spectrum transceiver
The present invention “Infinite Radio Frequency Spectrum Transceiver” (IRFS for short) relates to a circuit that emits and receives the complete radio frequency spectrum transmission as it exi...
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7526087 |
Random number generator
A random number generator. The random number generator includes a noise source, a circuit controlling random current consumption, and a circuit generating random bits. A noise voltage output from...
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7511586 |
Noise generator
A device for generating a noise signal, which may be used for generating a truly random sequence (10) of bits is disclosed. The device comprises a noise source (11), and an amplifier (12) connected...
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7508278 |
Asymmetry triangular frequency modulation profiles for spread spectrum clock generations
Spread spectrum clock generation (SSCG) using asymmetric triangular profiles to reduce electromagnetic interference (EMI). The asymmetric triangular profiles provide better peak power attenuation...
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7504897 |
Switched-current oscillator for clock-frequency spreading
A switched-current oscillator having a dc current source adapted to charge a capacitor so that the capacitor charging time is controlled based on a sequence of (pseudo)randomly selected values,...
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7479837 |
Noise signal generation by mapping random words
A noise signal generator includes a random word generator for generating a sequence of random words, each word representing an input value, a mapping unit for receiving the sequence of random...
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7463103 |
Chaotic signal generator for ultra wide band communication system
In a chaotic signal generator, a first signal generator generates a first signal. The first signal includes a first fundamental wave having a preset first frequency and a plurality of harmonic...
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7449967 |
Probabilistic pulse generator and differential absolute value computing element and manhattan distance arithmetic unit using this
A stochastic pulse generator (1) of this invention includes a variable signal generator (61) operative to generate a variable signal (VC) which varies randomly, and a comparator (3) operative to...
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7423494 |
Apparatus and method for a spread-spectrum oscillator for magnetic switched power converters
A method and apparatus for a spread-spectrum oscillator for a switched power converter is provided. The spread-spectrum oscillator includes a current waveform generation circuit, a capacitor, a...
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7417509 |
Spread spectrum modulation of a clock signal for reduction of electromagnetic interference
A spread spectrum frequency modulated oscillator circuit usable as a clock comprises a reference component such as a resistor, a voltage controlled oscillator and a first circuit coupled to the...
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7417511 |
Modulation circuit with integrated microelectro-mechanical system (MEMS) components
A modulation circuit includes a microelectronic electromechanical system (MEMS) based resonant structure having a resonant frequency, an excitation input and an output. A control module is coupled...
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7409331 |
Apparatus for designing mixed signal integrated circuits and configurable synchronous digital noise emulator circuit
A method for designing an integrated circuit having analog and digital circuit portions is disclosed. The method involves providing an emulation circuit, which preferably comprises a number of...
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7362191 |
Methods and circuits for frequency modulation that reduce the spectral noise of switching regulators
The present invention comprises methods and circuits for spread spectrum frequency modulation that reduce peak spectral noise at the outputs or inputs of switching regulators. More specifically,...
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7358821 |
Digital frequency jittering apparatus with random data generator and method thereof
A digital frequency jittering circuit for varying a switching frequency of a power supply is disclosed. The digital frequency jittering circuit includes a random data generator, an analog to...
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