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495 results about "Target Response" patented technology

Multichannel audio system having audio channel compensation

A multichannel compensating audio system includes first and second compensation channels to psychoacoustically minimize deviations in a target response, to psychoacoustically move the physical position of a speaker and / or to psychoacoustically provide a substantially equal magnitude of sound from a plurality of speakers in a plurality of different listening positions. The first compensation channel may include a series connected delay circuit, a level adjuster circuit and a frequency equalizer circuit that generates a first compensated audio signal from a first audio signal. The second compensation channel may include a series connected delay circuit, a level adjuster circuit and a frequency equalizer circuit that generates a second compensated audio signal from a second audio signal. A first summing circuit is configured to receive at least the first audio signal and the second compensated audio signal and generate a first output signal for provision to a first speaker. A second summing circuit is configured to receive the second audio signal and the first compensated audio signal and generate a second output signal for provision to a second speaker. The first and second output signals may be output by the first and second speakers into a listening space and are acoustically perceived by a listener.
Owner:HARMAN INT IND INC

A detection method for identifying static mechanical performance parameters of materials in different regions of welds

InactiveCN102288499AOvercome technical bottlenecks such as difficulty in accurately obtaining performance parameters of millimeter-level characterization dimensions such as weld areasTrue reflection of material propertiesInvestigating material hardnessTarget ResponseElement model
The invention relates to a detection method for identifying static mechanical performance parameters of materials in different regions of a weld joint, which comprises the following steps of: (1) preparing a test piece of a weld joint indentation test; (2) selecting a plurality of points to carry out hardness test in the whole weld joint region of the test piece in the vertical weld joint direction and carrying out reasonable partitioning according to an obtained hardness value; (3) obtaining load-depth curves of different regions; (4) establishing an indentation test finite element model andcarrying out verification on the accuracy of the finite element model; (5) forming a target response function mathematical optimization model in different regions of the weld joint according to an analog result of the indentation test finite element model and a corresponding experimental result; and (6) combining an optimization genetic algorithm and carrying out iteration according to selected target response functions to obtain optimal solutions so as to obtain the static mechanical performance parameters in different regions of the weld joint. The detection method has simple principle and is convenient to operate. The local mechanical performance parameters of the materials in the range of millimeter even micrometer can be measured. The application range of the indentation test is expanded.
Owner:HUNAN UNIV

Multichannel audio system having audio channel compensation

A multichannel compensating audio system includes first and second compensation channels to psychoacoustically minimize deviations in a target response, to psychoacoustically move the physical position of a speaker and / or to psychoacoustically provide a substantially equal magnitude of sound from a plurality of speakers in a plurality of different listening positions. The first compensation channel may include a series connected delay circuit, a level adjuster circuit and a frequency equalizer circuit that generates a first compensated audio signal from a first audio signal. The second compensation channel may include a series connected delay circuit, a level adjuster circuit and a frequency equalizer circuit that generates a second compensated audio signal from a second audio signal. A first summing circuit is configured to receive at least the first audio signal and the second compensated audio signal and generate a first output signal for provision to a first speaker. A second summing circuit is configured to receive the second audio signal and the first compensated audio signal and generate a second output signal for provision to a second speaker. The first and second output signals may be output by the first and second speakers into a listening space and are acoustically perceived by a listener.
Owner:HARMAN INT IND INC

Target specific response attention target tracking method based on twin network

The invention discloses a target specific response attention target tracking method based on a twin network, and relates to the computer vision technology. The method aims at overcoming the defect that an original target tracking method based on a twin network is not robust enough in complex tracking scenes such as rapid movement, shielding, rotation and background disorder of a target. The invention provides a target specific response attention target tracking method based on a twin network. The proposed target response attention module effectively weakens the influence of noise information on the tracking performance in the tracking process; meanwhile, the feature information having discrimination for the appearance change of the target object is enhanced, so that the target response graph generated by the twin network can be used for target position prediction, and therefore, more robust tracking performance can be realized. The method comprises five main parts: CNN feature extraction; generating a response graph through channel-by-channel cross-correlation; generating a weight by using an attention network, and weighting each channel response graph; and finally, determining a target position on the response graph, and providing a training method of the model.
Owner:XIAMEN UNIV

Detection method for identifying dynamic mechanical property parameter of different area materials in weld joint

A detection method for identifying dynamic mechanical property parameters of different area materials in a weld joint comprises the steps of: (1) preparing a weld joint test piece for an indentation test; (2) selecting several points in a whole weld joint area perpendicular to the weld joint on the test piece to carry out a hardness test, and carrying out reasonable partitioning according to the obtained hardness number; (3) carrying out dynamic indentation tests on the partitioned areas to obtain load-depth curves of different areas; (4) establishing dynamic indentation test finite element models; (5) forming target response function optimized mathematic models of different areas in the weld joint, according to simulate results of the indentation test finite element models and corresponding experiment results; (6) combining an optimized genetic algorithm and carrying out iteration with the target response functions to obtain dynamic mechanical property parameters of different areas in the weld joint. The invention with a simple principle and convenient operation can determine material local mechanical property parameters in a millimeter even micrometer dimension scope, so as to expand application scope of the indentation test.
Owner:HUNAN UNIV

Intelligent customer service multi-round question and answer method and device, storage medium and device

The invention discloses an intelligent customer service multi-round question answering method and device, a storage medium and a device. The method comprises the steps of obtaining a target question of a current round of a user; Searching a knowledge base for a standard intention matched with the target question, and obtaining the matching degree between the standard intention and the target question; Judging whether the matching degree between the standard intention and the target problem exceeds a preset matching threshold or not; If not, performing named entity recognition on the target problem, and obtaining a recognition result; Detecting whether a signal inherited in at least one round of user problem before the current round exists or not to obtain a detection result; And determining a target response according to the identification result, the detection result, the target question and the standard intention. According to the method, the named entity identification is performedon the target question, and the signal inherited from previous user questions is detected, so that the substantive content of the target question is determined, the corresponding response is performed, the intelligent question and answer with the user can be performed, and the user experience is improved.
Owner:PING AN TECH (SHENZHEN) CO LTD

Planning method of asymmetric variable acceleration based on optimal distribution in the time-domain of main frequency energy

The invention relates to technology field of mechanical engineering and mathematics research, specifically relates to a planning method of asymmetric variable acceleration based on optimal distribution in the time-domain of main frequency energy, and the method includes: solving positioning course of nonlinear finite element model including the free kinematics and parametric motion function, after execution stopping judging the amplitude of the drive end whether or not meets the positioning accuracy, if meet, the amplitude energy time is decayed,if not meet ,it will go on solving; judging the target response time whether or not it is a minimal value,if the time is a minimal value, determining to set the motion parameters as the optimal parameter ,if the time is not a minimal value,calculating the motion parameters of step and gradient and reset motion parameters to be solve. The invention by the above method solves the motion planning question of nonlinear effect and high speed and high acceleration under precision positioning requirements. The precision positioning and position / force smooth handoff in high speed condition can be achieved. It also adapts to motion planning question of performance administration to the traditional solving method.
Owner:GUANGDONG UNIV OF TECH

Multi- damping ratio goal response spectrum compatible artificial earthquake wave synthesis method

InactiveCN101236256AMeet the requirements of multiple damping ratio target response spectrumImprove fitting accuracySeismic signal processingTarget ResponseTime domain
The invention relates to an artificial seismic wave synthetic method compatible with a multi-damping ratio response spectrum. By adoption of the method, a traditional method is first adopted to generate initial artificial seismic waves and then a time domain adjustment algorithm is adopted to be performed on all periodical control points in turn; an optimization algorithm is adopted to perform fractional step adjustment in a given periodical control point according to the damping ratio number of a target response spectrum so as to realize a minimum root-mean-square error between a multi-damping ratio response spectrum value on the periodical control point of the artificial seismic waves after adjustment and a target multi-damping ratio response spectrum value. The time domain adjustment algorithm is to overlay amplitude modulation simple harmonic time paths on the initial artificial seismic waves, and the amplitude modulation simple harmonic time paths adopt intensity envelope curves which are the same with the initial artificial seismic waves for modulation of the simple harmonic time paths. The algorithm is high in fitting precision and high in calculating speed and is suitable for promotion and application.
Owner:BEIJING UNIV OF TECH
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