403 results about "Attractor" patented technology

A communication system having a transmitter chaotic signal generator and a receiver chaotic signal generator which when uncoupled generate state signals along substantially identical chaotic attractor trajectories in an out of phase relation. A controller controls the transmitter chaotic signal generator to transmit a state signal having segments of the deterministic state trajectory which identify a subsequent length of the deterministic state trajectory matching an input N-bit sequence. A receiver coupler receives the transmitted state signal and, if the signal is above a threshold for a duration of approximately two bit periods, synchronizes the receiver chaotic signal generator to the segment of its deterministic state trajectory indicated by the state signal to generate, with or without coupling, the subsequent length of that state trajectory matching the input N-bit sequence. A receiver symbol detector reconstructs the N-bit sequence based on the receiver chaotic oscillator state signal.

A multiple access telecommunication system is provided, which makes use of chaotic signals. Each transmitter has a chaotic system, which has at least one strange attractor in its phase space, and each receiver has chaotic systems, which corresponds to those in the transmitters from which it may receive signals. Each pair of users is assigned a set of periodic unstable orbits from a strange attractor, which that pair of users may use for signalling. At the transmitter side, a multiplexer receives data from plurality of users. These data are multiplexed in time, to produce an asynchronous data stream. The data stream is then mapped to a sequence of chaotic signals, in accordance with the set of trajectories for each transmitter and receiver pair.

Fractal computers are neural network architectures that exploit the characteristics of fractal attractors to perform general computation. This disclosure explains neural network implementations for each of the critical components of computation: composition, minimalization, and recursion. It then describes the creation of fractal attractors within these implementations by means of selective amplification or inhibition of input signals, and it describes how to estimate critical parameters for each implementation by using results from studies of fractal percolation. These implementation provide standardizable implicit alternatives to traditional neural network designs. Consequently, fractal computers permit the exploitation of alternative technologies for computation based on dynamic systems with underlying fractal attractors.

Product data from a manufacturing process is analysed using techniques adapted from the study of chaos. Future values of a series of product data are predicted and an attractor structure is determined from the product data. This enables the manufacturing process to be monitored, controlled and analysed. Action can be taken to modify the manufacturing process using the results from the prediction and attractor structure to reduce costs and improve performance and efficiency.

A floating fishing lure having the capability to adjust the buoyancy of the fish lure with a high degree of precision, such that the fish lure has fore and aft chamber sections connected and held together by an attaching means. Disposed on each fore and aft chamber sections are a plurality of buoyancy windows, one set of which will coincidentally overlie the other set of buoyancy windows as the fore chamber section is rotationally moved in regard to the aft chamber section. By changing the rotational placement of the two sections, valve aperture openings are produced that regulate the air to water ratio within the fish lure, thereby controlling its buoyancy. Additional fish attractors, hooks and illuminators can be added to the fishing lure.

In part, the disclosure relates to an electromagnetic current displacement apparatus that includes one or more magnetic field sources and an alternating current source. The apparatus includes current delivery electrodes that may be part of a cuff, a hand held device, or individual electrode pads suitable for temporary fixation to skin. In one embodiment, an alternating current is transcutaneously delivered using skin contacting electrodes sized and arranged to avoid hotspots and provide a uniform delivery of the current. In turn, current attractors and repulsors can be arranged on the skin or in a suitable device to push or pull sections of the current that is disposed below such elements. Magnetic fields can be applied and focused to the regions through which the current passes, effectively pushing the current deeper into a target region below the surface of the skin.

A method for providing information in an HMD. The method includes defining an active zone in a virtual reality (VR) viewing environment of a user as presented through a 3D display of the HMD. The method includes placing main content in the active zone of the VR viewing environment. The method includes defining one or more peripheral zones outside of the active zone. The method includes placing secondary content in the first peripheral zone of the VR viewing environment. The method includes displaying an attractor within the active zone in conjunction with the entry of new data in the secondary content, wherein the attractor brings attention of the user to the first peripheral zone. The method includes detecting rotation of the HMD from the first orientation directed to the active zone towards a second orientation directed to the first peripheral zone. The method includes pausing the main content.

The invention relates to a graph model based saliency target detection method. First, the method includes improving the clustering effect of an HAIC (Hexagon Arrangement Iteration Clustering) algorithm by using MRF overall potential energy minimization image smoothing; dynamically setting a threshold value so as to enable areas similar in color while communicating with each other in space to be divided into the same area by utilizing an improvement-based graph model for image division; combining areas with rich borders and improving excess division of image borders by using an attractor propagation clustering method. Second, the method includes optimizing a saliency graph by adopting a manifold ranking algorithm according to a manifold structure among super pixels so as to highlight the whole saliency area in the final saliency graph further.

The invention discloses a method for detecting and tracking a faint target of a high frequency ground wave radar with a non-linear dynamics characteristic of a wave echo. The method comprises the following steps: recording intermediate frequency data in an echo signal in real time; canceling impact interference and the first-order data of an echo; establishing a chaotic dynamics forecasting model of the wave echo; and executing detection and tracking of the faint target, wherein the steps of canceling are as follows: implementing distance conversion and speed conversion to the intermediate frequency data; eliminating impact interference on a speed spectral domain through a spline wavelet filter, and eliminating a strong sea clutter through a track matrix wave of a reconstructing attractor. In addition, the invention discloses an apparatus for detecting and tracking a faint target of a high frequency ground wave radar with a non-linear dynamics characteristic of a wave echo.

The invention relates to a three-order switchable constant Lyapunov exponent spectra chaotic circuit and a using method thereof, wherein, the three-order switchable constant Lyapunov exponent spectrachaotic circuit comprises a single absolute value item chaotic circuit, an attractor adjusting circuit, a double absolute value item chaotic circuit, a phase inverter circuit, an amplitude adjusting circuit and a corresponding switch group; and the method comprises the steps of taking the basic constant Lyapunov exponent spectra chaotic circuit of a single absolute value item as the basis, and utilizing an absolute value arithmetic unit, a linear and nonlinear feedback branch, an adjustable power supply and a switch for constituting the switchable chaotic circuit. A phase track attraction region of the basic constant exponent spectra chaotic circuit is adjusted by switching through the switch and introducing a linear feedback item; the introduction of a nonlinear absolute value item can obtain the constant exponent spectra chaotic circuit with double absolute value items; and the amplitude adjustment of chaotic signals can be realized through the adjustable power supply, and the phasecontrol of the chaotic signals can be realized through the synchronous changes of feedback polarities of a constant item and the absolute value items. The three-order switchable constant Lyapunov exponent spectra chaotic circuit has the advantages of simple circuit, controllable amplitude and phase of the signals and abundant evolution of an attractor, thereby being widely used in chaotic radar, secure communication and fluid stirring.

A fabric handling apparatus includes a layup table, a mold disposed adjacent to the layup table, and a fabric handling array suspended above the layup table and the mold. The fabric handling array is adapted to transfer at least one fabric shape from the layup table to the mold. The fabric handling array includes a plurality of attractors in an attractor array. An orientation of the fabric handling array is alterable with respect to at least one of the layup table and the mold so that the at least one fabric shape is positionable on the mold in a predetermined orientation.

A modular hook assembly that includes an adjustable shank mounted weight and retainers that accept artificial attractors, rattles, weights, lights, cyalume sticks or other accessories. A weight member having a longitudinal notch is cast over a slit sleeve that compressively grips the hook shank and permits adjustment of the weight along the shank. A wire formed artificial attractor retainer mounts to the hook eye or other available aperture to secure a variety of molded plastic attractors or live bait to the hook. A second wire formed retainer includes an open-looped section that clips onto the hook. A trailing spiral wound section includes a bore that accepts the head of a rattle chamber, cyalume stick, weight or other accessory screwed into the bore.

The invention discloses a five-dimensional chaotic system and a chaotic signal generator based on the five-dimensional chaotic system, and relates to the information encryption field. The five-dimensional chaotic system provided by the invention is small in quantity of occupied digit circuit multiplying units, easy to implemented and large in chaotic system parameter range, so that complex chaotic signals are obtained, and the information encryption safety is improved. The five-dimensional chaotic system is used for inputting five chaotic signals and has typical chaotic attractors. An FPGA (Field Programmable Gate Array) in the chaotic signal generator is used for generating a five-dimensional chaotic system circuit, and the five chaotic signal output ends are respectively connected with the digital signal input ends of first, second, third, fourth and fifth digital analog converters. One end of a dial switch is connected with a power supply while the other end of the dial switch is respectively connected with the power supply ends of the five digital analog converters. The signals output by the five digital analog converters are voltage signals. The chaotic signal generator can provide a five-dimensional chaotic signal source which has various association of variation, is used for information encryption and has good chaotic characteristics.

The invention discloses an adaptive control method of four-rotor aircraft finite time on the basis of a quick terminal slip form, and is suitable for a four-rotor aircraft system with inertial uncertainty and external disturbance. A linear slipping modal and a quick terminal sliding modal are comprehensively considered, a terminal attractor is introduced into the system sliding modal, so that a system state is converged in the finite time, the quickness of the linear slip form when an equilibrium state is approached is kept so as to quickly converge the system state to the equilibrium state inthe finite time. The invention applies the quick terminal slip form to put forward the adaptive control method of four-rotor aircraft finite time on the basis of the quick terminal slip form, a system singularity problem is avoided, buffeting is effectively inhibited, the method exhibits good robustness for the external disturbance and the uncertainty in a four-rotor aircraft system, and the system can quickly converge in the finite time.

The invention discloses a storage winch with a function of measuring tension and length of a cable. The storage winch comprises a cable storage cylinder, a support device, a cable guide device, a driving component, a cable arranging mechanism, a warning device, a power transmission communication interface connection device, a lightning attractor, a cable tension measuring device and a cable length measuring device. For cable length measurement, two lines of independent but related proximity switches are adopted for improving work reliability and measurement accuracy; for tension measurement, a pressure sensor is adopted, and force application pin rolls at two pin joint support seats between a cable guide support and a cable arranging sliding block are used for transmitting tension of the cable. The storage winch can be matched with a friction drive winch, is applicable to storage of a large volume of cables and arrangement of cables in order based on special support cables, has functions of measuring tension and laying length of the cable, protecting the cable and guaranteeing the operation safety, and meets special task requirements on large load, good safety, reliable operation, long cable laying distance, and the like.

The embodiment of the invention discloses an article identification method and device, and a storage medium. The embodiment of the method comprises the following steps that: selecting a correspondingarticle as a sample to construct the sample set of an original article identification model; then, obtaining the sample title vector and the sample main body vector of the sample set, training the original article identification model according to the sample title vector and the sample main body vector to obtain a trained article identification model; obtaining the title vector and the main body vector of an article to be identified; according to the trained article identification model, identifying the article title vector and the main body vector to obtain similarity information between thetitle vector and the main body vector; and according to the similarity information, determining whether the article to be identified is a title attractor article or not. By use of the scheme, the title attractor article can be automatically identified through the article identification model, artificial identification is not required in an identification process, and the identification efficiencyof the title attractor article can be improved.

A method and system of organizing salient, aversive, and neutral stimuli in a visual display, deliberately separated by space and/or time, to better reveal attractors and aversions for a test subject observing the display, whose reactions are tracked using eye and gaze tracking, as well as other optional body parameters, all captured as data. The data is analyzed using rules and algorithms to characterize or diagnose the subject based on single test results, or comparison to prior test results, and comparisons to norms. The method and system may be employed on stand-alone, off-the-shelf electronic devices, including smartphones, tablets, laptops, and desktops, as well as on higher-end computers systems, specialized equipment, and cloud-based set-ups, allowing mobile or setting-based usage. Optional sensor inputs may be utilized for the optional inputs described above.

A computer implemented method provides access to accommodate public use software environments. An attractor screen is displayed on a data processing system providing the public use environment. An interaction with the attractor screen is then detected. If the interaction with the attractor screen complies with audio instructions for executing a software overlay, the control software for the public use system is launched along with the software overlay. If the interaction with the attractor screen does not comply with audio instructions for executing a software overlay, the control software for the public use system is launched without the software overlay.

The invention discloses a finite time neural network optimization method for solving the inverse kinematics of a redundant manipulator. The finite time neural network optimization method comprises thefollowing steps that 1), an expected target track r*(t) and a joint angel theta*(0) expected to be returned of an end effector of the redundant manipulator are determined, and the end effector of the manipulator is deviated from the position of the expected track; 2), final state attraction optimization indexed are designed, a quadratic programming scheme based on the final state attraction is constructed, wherein an initial joint angle of the redundant manipulator during actual movement can be arbitrarily designated, the initial joint angle theta(0) of the redundant manipulator during actual movement is given, theta(0) is taken as a motion starting point, and the formed repeated motion programming scheme is described as the quadratic programming with the final state attractor optimization indexes; 3) a final state neural network model of a finite value activation function is constructed, and a finite value final state neural network is used for solving a time-varying matrix equation; and 4), the result which is obtained by solving the equation is used for controlling each joint motor to drive the manipulator to execute tasks. The finite time neural network optimization method has the advantages of being high in precision and capable of converging in finite time.