Described herein is a combination of mixed-signal hardware and software that is capable or realizing hybrid chaotic oscillators that can be tuned digitally This includes the type/class of chaotic oscillator, initial conditions, nonlinear elements, thresholds, nonlinear event surfaces, delays, etc At the same time, tunable methods of how to use the chaotic oscillator information to encrypt and decrypt both analog and digital information is presented This will make the secure information not vulnerable by digital information compromises or hardware breach

Method and apparatus for hybrid encryption

The present invention provides apparatuses and methods for chaos computing. For example, a chaos-based logic block comprises an encoding circuit block, at least one chaotic circuit block, a bias voltage generating circuit block, and a threshold circuit block. The encoding circuit block converts a plurality of digital inputs to an analog output. The plurality of digital inputs may comprise at least one data input and at least one control input. At least one chaotic circuit block is configured to iterate converting an input signal to an output signal by feeding the output signal to at least one chaotic circuit as the input signal at each iteration. The bias voltage generating circuit block converts a plurality of binary control inputs to a bias voltage. The threshold circuit block compares the output signal with a predetermined threshold, thereby generating a digital signal.

Reconfigurable logic gates using chaotic dynamics

The invention discloses a current-type grid multi-scroll chaotic circuit, which comprises three current integrators, a current inverting amplifier and two current mode step wave sequence generation circuits, wherein the three current integrators are serially connected in sequence; the input end of the current inverting amplifier is connected with the output ends of the three current integrators and the output ends of the two current mode step wave sequence generation circuits; the output end of the second current integrator is connected with the input end of the second current mode step wave sequence generation circuit; the output end of the second current mode step wave sequence generation circuit is connected with the input end of the third current integrator; and the output end of the third current integrator is connected with the input end of the first current mode step wave sequence generation circuit Current signals are adopted as state variables for the circuit, the state variables are directly outputted from the high-impedance end of the current integrator, a load can be directly driven without a buffer, the high-frequency performance is good, and high-frequency multi-scroll chaotic attractors can be generated

Current-type grid multi-scroll chaotic circuit

The invention provides a seismic wave feature extraction method self-adaptive to stochastic resonance. The method includes: adopting maximum likelihood estimation to estimate noise intensity, buildinga second-order nonlinear bistable-state random resonance system, and realizing noise matching and frequency matching by optimizing output signal-to-noise ratio gain measure and synchronous Cramer escape rate; changing signal frequency according to set step length, selecting a signal-to-noise ratio maximum value as an optimal matching value, and extracting signal frequency corresponding to the optimal matching value, namely target feature line spectrum frequency. By the method, signal energy and local signal-to-noise ratio at a target feature line spectrum position can be increased substantially, and feature signals in completely-submerged noise can be obviously enhanced and output.

Seismic wave feature extraction method self-adaptive to stochastic resonance

A light system for a fireplace, including a plurality of lights, and a chaos circuit coupled to the plurality of lights. The chaos circuit is configured to provide signals to the plurality of lights to provide naturalistic flame lighting and naturalistic ember lighting.

Light system for fireplace including chaos circuit

A reconfigurable element based on nonlinear (chaotic) dynamics is adapted to implement the three different multivibrator configurations. A nonlinear dynamical system, under parameter modulating control, operates as a tunable oscillator with different dynamical regimes which in turn provide the different multivibrator configurations (monostable, astable, and bistable). The reconfigurable multivibrator is realized as a tunable circuit which includes an input stage for receiving at least one input voltage signal and an output stage that produces a digital two-level electric output signal. The all-in-one reconfigurable multivibrator device consisting of a nonlinear oscillator circuit electrically coupled to the input/output circuitry is used in at least, but not limited to three basic applications, namely, an irregular width pulse generator, a rising flank trigger and a full RS flip-flop device.

Reconfigurable multivibrator element based on chaos control

Un elemento reconfigurable basado en dinamica nolineal (caotico) es adaptado para implementar los tres diferentes configuraciones de multivibrador. Un sistema dinamico nolineal, bajo un control por modulacion parametrica, opera como un oscilador ajustable con diferentes regimenes dinamicos, los cuales a su vez producen las diferentes configuraciones de multivibrador (monoestable, aestable, y biestable). El multivibrador reconfigurable se realiza como un circuito ajustable el cual incluye una etapa de entrada para recibir al menos una senal de voltaje de entrada, y una etapa de salida, la cual produce una senal de salida digital electronica de dos niveles. El dispositivo multivibrador reconfigurable todo-en-uno que consiste de un circuito oscilador nolineal electricamente acoplado a una circuiteria de entrada/salida es utilizado en al menos, pero no limitado a, tres aplicaciones basicas, estas son, un generador de pulsos con ancho irregular, un disparador de flanco de subida, y un dispositivo logico RS completo biestable (flip-flop).

Canton Isaac Campos

Papers

Reconfigurable multivibrator element based on chaos control

Elemento multivibrador reconfigurable basado en control de caos