506 results about "Mode matching" patented technology

A lidar-based apparatus and method are used for the solid state steering of laser beams using Photonic Integrated Circuits. Integrated optic design and fabrication micro- and nanotechnologies are used for the production of chip-scale optical splitters that distribute an optical signal from a laser essentially uniformly to an array of pixels, said pixels comprising tunable optical delay lines and optical antennas. Said antennas achieve out-of-plane coupling of light.As the delay lines of said antenna-containing pixels in said array are tuned, each antenna emits light of a specific phase to form a desired far-field radiation pattern through interference of these emissions. Said array serves the function of solid state optical phased array.By incorporating a large number of antennas, high-resolution far-field patterns can be achieved by an optical phased array, supporting the radiation pattern beam forming and steering needed in solid state lidar, as well as the generation of arbitrary radiation patterns as needed in three-dimensional holography, optical memory, mode matching for optical space-division multiplexing, free space communications, and biomedical sciences. Whereas imaging from an array is conventionally transmitted through the intensity of the pixels, the optical phased array allows imaging through the control of the optical phase of pixels that receive coherent light waves from a single source.

The invention relates to the technical field of data mining, in particular to a location prediction system and a method based on historical track data mining. In the method, the location prediction problem is decomposed into two sub-problems of offline track mining and online mode matching, wherein the offline track mining mainly adopts the data mining technology to process and analyze the historical track data of a user; and the online mode matching is mainly based on the online motion conditions of the user and the mined motion mode to perform matching and searching. According to the invention, various needs based on the location-based services (such as location-based advertisement, recommendation, reminding and other services) are effectively met, and the problems of the prior art are solved.

The invention discloses an online voiceprint recognition system and an implementation method thereof. The online voiceprint recognition system comprises a user recording module and an online voiceprint recognition server, and the implementation method comprises the following steps of: (1) providing generated password content for a user through the online voiceprint recognition server; (2) recording the voice of the user by utilizing the user recording module and providing the voice for a voice recognition module; (3) performing mode matching analysis on voice content provided by the user and the password content through the voice recognition module; (4) judging whether an audio fingerprint of the voice provided by the user is of the legal voice or not through an audio fingerprint recognition module; and (5) inspecting the matching degree between the voice provided by the user and a voiceprint module established by the registered user through a voiceprint recognition module, and regarding login is the real user login and receiving the login of the user if the degree achieves a set value. According to the online voiceprint recognition system and the implementation method thereof, disclosed by the invention, simple, easy-to-use and high-efficient online identity authentication can be realized.

The invention discloses a real-time monitoring method for the energy consumption of a public building based on data mining, belonging to the technical field of building energy saving. The method disclosed by the invention comprises the following steps: S1. establishing a building energy consumption mode judgment tree; S2. collecting building energy consumption data in real time; and S3. judging whether the current building energy consumption data are energy consumption abnormal points or not, carrying out the mode matching on the current building energy consumption data and the building energy consumption mode judgment tree and judging whether the current building energy consumption data are isolated points or not. In the method disclosed by the invention, the specific energy consumption mode of the building is identified by carrying out the cluster analysis on the historical energy consumption data; the building energy consumption mode judgment tree is obtained by classifying the data; the mode matching is carried out on the energy consumption data which are dynamically collected in the real-time monitoring course for the energy consumption of the building; and the isolated point analysis is carried out on the energy consumption data and the historical data which have the same mode, thereby judging whether the current building energy consumption data are abnormal or not. The method disclosed by the invention has the characteristics of good real-time characteristic, generality and robustness.

A micromachined z-axis rate gyroscope with multidirectional drive-mode has an increased drive-mode bandwidth for relaxing mode-matching requirement in which the drive and sense modes are completely decoupled. By utilizing multiple drive-mode oscillators with incrementally spaced resonance frequencies, wide-bandwidth response is achieved in the drive-mode, leading to reduced sensitivity to structural and thermal parameter fluctuations. Quadrature error and zero-rate-output are also minimized, due to the enhanced decoupling of multi-directional linear drive-mode and the torsional sense-mode. Bulk-micromachined prototypes have been fabricated in a one-mask SOI-based process, and is experimentally characterized.

The present invention provides an intelligent universal wireless charging system for a mobile phone. The system comprises a mobile phone wireless charger, a wireless charging battery and a mobile phone wireless charging management terminal. The mobile phone wireless charger is provided with a Bluetooth communication module for information interaction with the mobile phone wireless charging management terminal, and according to basic information of a battery to be charged, a charging mode matching with the battery is selected. The wireless charging battery includes an energy receiving coil, a rectification and filtering circuit and a battery unit. The receiving coil is arranged at the bottom of the wireless charging battery, and is provided with an electromagnetic shielding layer on the back. The mobile phone wireless charging management terminal can detect relative parameters of the battery in real time, and feed the information back to the mobile phone wireless charger by the own Bluetooth module of the mobile phone, thereby facilitating the real-time adjustment of the charging mode and the charging power. Besides, the mobile phone wireless charging management terminal has a charging completion reminding function. The system provided by the invention can be used for wireless charging of mobile phone batteries of different models, and is simple and convenient to operate.

The invention discloses a computer system for assisting spoken language learning, comprising the following components of a user interface for prompting a user to complete a certain spoken language learning content and collect voice response data of the user; a database which comprises a group of mode features used for describing the performances on acoustic and linguistic aspects which are related to the spoken language learning of the user; a voice analysis system for analyzing the voice response data and extracting acoustic mode features or linguistic mode features; a mode matching system for correspondingly matching one or more subsets in the mode feature extracted from the voice response data with the mode features in the database and generating feedback data according to the matching result; and a feedback system for feeding data back to the user and assisting the user to master the spoken language learning content. The computer system has higher interactivity and self-adaptability and can particularly heuristicly capture user errors and intelligently feed back rich teaching instruction information, thereby making up for deficiencies of the prior art on the aspect.

The invention discloses a replay attack detection method based on the distortion features of speech signals introduced by a loudspeaker. The method includes the following steps that: speech signals to be detected are pre-processed, and noised speech frames in the speech signals to be detected are reserved; feature extraction is carried out on each noised speech frame in the pre-processed speech signals, so that speech signal linear distortion and nonlinear distortion feature-based feature vectors can be obtained; the average value of the feature vectors of all the noised speech frames is obtained, and statistical feature vectors can be obtained, and the feature model of the speech signals to be detected is obtained; the feature vectors of a training speech sample are extracted, so that a training speech feature model can be obtained, the training speech feature model is utilized to train an SVM (Support Vector Machine model), so that a speech model library can be obtained; and SVM mode matching is performed on the feature model of the speech signals to be detected and the trained speech model library, and a decision result can be outputted. With the replay attack detection method of the invention adopted, real-time and effective detection of replayed speech can be realized.

The invention discloses an intersection traffic flow characteristic analysis and vehicle moving prediction method based on trajectory data, and belongs to the technical field of intelligent traffic system and traffic flow parameter acquisition. The method starts with space transient analysis of a vehicle original trajectory, and describes and analyzes trajectory local geometrical characteristics at different angles, forms a multilevel spectral clustering processing framework based on a vehicle original rough movement track, and automatically extracts and analyzes a plurality of traffic direction modes of an intersection included in the trajectory data. With the basis, the method can acquire intersection sub-phase (signal control intersection) traffic flow and travel time of vehicles in all directions passing through the intersection, and other detailed traffic characteristic parameters, as important complement of conventional traffic data. Through tracking travelling tracks of all moving vehicles at present moment, a traffic direction trajectory mode matching method is used to predict the next behavior of the vehicles, thereby being beneficial for warning safety risks which may exist on an intersection in real time.

The robot server comprises a message purpose recognizing unit used for recognizing if the user's message is a formatted message or a non-formatted message; a natural language comprehending unit used for comprehending the user's message in order to confirm the attribute of user's message; a user's attribute storing unit used for saving the user's attribute information; a reasoning engine unit used for making the mode matching in the knowledge base according to the message attribute and user attribute information in order to confirm the matched feedback replay; a knowledge base used for saving knowledge. The invention also reveals an automatic chat method thereof.

The invention discloses a method for performing adaptive input based on input environment, and an input method system. The method comprises the following steps of: obtaining environment information of the input interface on which a cursor focus is located; starting relative functions corresponding to the current environment to generate a candidate result adaptive to the current environment; and presenting the candidate result through a way corresponding to the current environment. The method and the input method system provided by the invention can automatically identify the current input environment, and also can automatically perform corresponding mode matching and mode switching according to various different input environments, thereby satisfying the input requirements of users at different input occasions; and the method and the input method system also can start an adaptive input function for a matched special mode. For different input modes, the method and the input method system can set an adaptive special function so as to further help users to improve the input efficiency.

The technical scheme of the invention discloses a method and a system for identifying a named entity. The method for identifying the named entity comprises the following steps: merging feature vectors, wherein the feature vectors comprise pre-trained word vectors, self-training word vectors and part-of-speech tagging vectors, and a neural network is a convolutional neural network or a deep belief neural network; using the merged and obtained feature vectors as input, and obtaining a classified output result through treatment of a hidden layer, a reducing layer and an output classification layer of the neural network; and adopting a multi-mode matching algorithm to identify the classified output result so as to obtain the target entity. Through the technical scheme, the feature vectors are merged as input features of the neural network, so that the method can be well applied to specific classification scenes through treatment of the neural network and multi-mode matching.

A mode matching servo for an inertial sensor having a resonator and an accelerometer provides a test signal at a frequency higher than a predetermined inertial sensor response frequency and lower than an accelerometer resonance mode frequency so as to induce acceleration signals from the accelerometer substantially at the test signal frequency when the modes are not matched. A feedback signal is provided in response to such induced signals to substantially nullify the signals.

The invention belongs to the technical fields of mode indentifying and image processing, and relates to an image matching method based on characteristic points. The image matching method based on characteristic points defines an annular corner code model according to the K neighboring structure of the characteristic points and applies the model to point mode matching. Similar annular corner codes not only describe the similarity of the space structures of two characteristic points, but also can be used for local mapping estimation. The similarity of the two characteristic points is confirmed by the similar length of the largest similar annular corner codes associated with the two characteristic points. The image matching method based on characteristic points carries out structure matching according to the similarity of the local space structures of the characteristic points, and uses the local mapping and clustering to carry out optimization matching. The optimization matching result is used for optimizing the mapping estimation. The method can be used for the image matching based on the characteristic points, image jointing and embedding, motion tracing, information fusion of medical single-mode and multi-mode images, as well as image searching based on contents.

The invention discloses a voice-print authentication system having a voice-print password picture prompting function, which comprises a password establishing module, a voice recognition module and a voice-print recognition module; the password establishing module is connected with a server, a password is a random password or consists of a random password and a fixed password, the server generates the random password, and the random password is displayed on a login terminal of a user in a picture format; the voice recognition module is used for analyzing content of voice provided by the user and for performing the mode matching of the voice content provided by the user and the password content generated by the server, if the voice content is not matched with the password content, the password provided by the user is proved not to satisfy the requirement, and if the voice content is matched with the password content, the voice-print recognition module is entered; and the voice-print recognition module is divided into a register unit and a test unit, wherein a speaker model is established in the register unit, and the test unit calls the speaker model to analyze the characteristics of the provided voice in test and to execute the confirmation judgment so as to determine to accept or to refuse. In addition, the invention also discloses a realization method of the system. Due to the adoption of the system and the method, the security of the voice-print authentication can be improved.

The invention discloses a system and a method for positioning underground personnel in a coal mine. The system comprises a ground monitoring center arranged aboveground, a transmission base state arranged underground, a plurality of gateway nodes, an optical fiber, a bus, a plurality of wireless beacon nodes and a plurality of mobile nodes, wherein the system is intrinsically safe when applied to underground equipment. The method is a positioning method based on mode matching and comprises the steps of: dividing a roadway into different blocks according to a roadway structure and the signal coverage area of the beacon nodes, distributing the beacon nodes in each block according to a same manner, generating a positioning mode database on the ground monitoring center through training the nodes in a training state, sending a positioning mode to the ground monitoring center by the mobile nodes according to the positioning signals of the received beacon nodes in a positioning stage, matching a mode generated by training the nodes in the database to find out a proximate mode, thereby realizing accurate positioning. The system and the method for positioning the underground personnel are high imprecision, low in cost and low in energy consumption, and the system is simple in equipment structure.

A silicon-on-insulator (SOI)-based tunable laser is formed to include the gain medium (such as a semiconductor optical amplifier) disposed within a cavity formed within the SOI substrate. A tunable wavelength reflecting element and associated phase matching element are formed on the surface of the SOI structure, with optical waveguides formed in the surface SOI layer providing the communication between these components. The tunable wavelength element is controlled to adjust the optical wavelength. Separate discrete lensing elements may be disposed in the cavity with the gain medium, providing efficient coupling of the optical signal into the SOI waveguides. Alternatively, the gain medium itself may be formed to include spot converting tapers on its endfaces, the tapers used to provide mode matching into the associated optical waveguides.

An arrangement for coupling between a free-space propagating optical signal and an ultrathin silicon waveguide formed in an upper silicon layer (SOI layer) of a silicon-an-insulator (SOI) structure includes a silicon nanotaper structure formed in the (SOI layer) and coupled to the ultrathin silicon waveguide. A dielectric waveguide coupling layer is disposed so as to overly a portion of a dielectric insulating layer in a region where an associated portion of the SOI layer has been removed. An end portion of the dielectric waveguide coupling layer is disposed to overlap an end section of the silicon nanotaper to form a mode conversion region between the free-space signal and the ultrathin silicon waveguide. A free-space optical coupling arrangement is disposed over the dielectric waveguide coupling layer and used to couple between free space and the dielectric waveguide coupling layer and thereafter into the ultrathin silicon waveguide.

The invention discloses an event warning method based on Internet information and belongs to the technical field of information. The method comprises the following steps. Firstly, crawling of webpage information on each set website is performed, the webpage information is stored, and information relevant to an event is obtained. Secondly, junk information filtering is performed on the information which is relevant to the event and obtained by crawling. Thirdly, an event information main body is set up, the information after filtering is sorted based on example names and attributes in the event information main body by utilizing a mode matching method. Fourthly, the sorted information is clustered according to set characteristics, and events in each kind of information are obtained. Fifthly, all the characteristic parameter values of each event are obtained regularly, and if a difference value of all the characteristic parameter values of one event and an average value of the event in a given previous period exceeds a preset threshold, warning on the event is performed. The event warning method based on the internet information ensures timeliness, accuracy and comprehensiveness of information identification and warning of food safety events, and improves efficiency of risk warning of food safety.

A silicon-on-insulator (SOI)-based tunable laser is formed to include the gain medium (such as a semiconductor optical amplifier) disposed within a cavity formed within the SOI substrate. A tunable wavelength reflecting element and associated phase matching element are formed on the surface of the SOI structure, with optical waveguides formed in the surface SOI layer providing the communication between these components. The tunable wavelength element is controlled to adjust the optical wavelength. Separate discrete lensing elements may be disposed in the cavity with the gain medium, providing efficient coupling of the optical signal into the SOI waveguides. Alternatively, the gain medium itself may be formed to include spot converting tapers on its endfaces, the tapers used to provide mode matching into the associated optical waveguides.

A lidar-based apparatus and method are used for the solid state steering of laser beams using Photonic Integrated Circuits. Integrated optic design and fabrication micro- and nanotechnologies are used for the production of chip-scale optical splitters that distribute an optical signal from a laser essentially uniformly to an array of pixels, said pixels comprising tunable optical delay lines and optical antennas. Said antennas achieve out-of-plane coupling of light.As the delay lines of said antenna-containing pixels in said array are tuned, each antenna emits light of a specific phase to form a desired far-field radiation pattern through interference of these emissions. Said array serves the function of solid state optical phased array.By incorporating a large number of antennas, high-resolution far-field patterns can be achieved by an optical phased array, supporting the radiation pattern beam forming and steering needed in solid state lidar, as well as the generation of arbitrary radiation patterns as needed in three-dimensional holography, optical memory, mode matching for optical space-division multiplexing, free space communications, and biomedical sciences. Whereas imaging from an array is conventionally transmitted through the intensity of the pixels, the optical phased array allows imaging through the control of the optical phase of pixels that receive coherent light waves from a single source.

The invention relates to the character string multi-mode matching field, and discloses a sensitive word filtering method. The sensitive word filtering method comprises the steps of performing management on Chinese, English, website sensitive words and excluding words; performing a character normalization processing method; performing a group of filtering policies and realization method for sensitive words in different existence forms, at least comprising a filtering step for Chinese, English, websites, full spelling, pinyin compiling and anagram; setting a group of criterion rules for sensitive words; and performing an approximate matching method for Chinese sensitive words. The invention also discloses a sensitive word filtering apparatus. According to the sensitive word filtering method and apparatus, the requirements of a content administrator and a searcher on issued or searched text filtering sensitive words can be satisfied; filtering for a large amount of sensitive words can be carried out rapidly and accurately; and the sensitive words, the level of the sensitive words and the positions of the sensitive words in the can be returned to the caller.

A method and apparatus for mode-matching double-clad fibers. In some embodiments, a first fiber section that has a first core, wherein the first core has a first core diameter connects to a mode-field adaptor, wherein the mode-field adaptor includes a first portion having a central volume that has a substantially constant index-of-refraction radial profile and a diameter larger than the first core diameter, and a second portion that has a graded-index (GRIN) central volume, wherein the GRIN central volume has a central axis and a graded index-of-refraction radial profile having an index that gradually decreases at larger distances from its central axis and a length selected to focus light into the core of a second fiber wherein the second core has a diameter that is larger than the first core diameter, and wherein the second fiber section is double clad. Some embodiments are polarized.

The invention discloses an operation log recording method, which comprises the following steps: setting a configuration library for storing the configuration information of an operation log type; acquiring the operation information comprising the operation log type, an operator and an operated object mark; calling a data access component, acquiring the configuration information of the operation log type from the configuration library, and constructing a mark analyzer and a content assembler according to the class names of the mark analyzer and the content assembler therein; analyzing the operator and the operated object mark to acquire the description of the operator and the operated object, performing mode matching according to a preset mode of the operation log type, and assembling the operation log content; and recording the operation log content, wherein the configuration information at least comprises the class names of the mark analyzer and the content assembler of the type. The invention also discloses an operation log recording system. The method and the system can avoid bring randomness recorded by the operation log into a service system, improve the consistency of the service system, and reduce maintenance cost.

The embodiment of the invention provides a vocal print feature recognition method and a vocal print feature recognition system. The method comprises the following specific steps: after speech separation treatment based on hearing characteristics on pretreated noise-containing mixed noise, extracting a frequency cepstrum coefficient and a perceptual linear prediction coefficient of a signal, by utilizing the background distinction degree of the noise, analyzing the frequency cepstrum coefficient and the perceptual linear prediction coefficient under different noise environments so that the feature fusion is completed, and finally, in a pre-established vocal print feature template library, carrying out mode matching on the features after fusion by adopting a gaussian mixture model-universal background model (GMM-UBM). According to the vocal print feature recognition method, the human auditory system features and the traditional vocal print recognition method are combined, the problem that the vocal print recognition ratio under noise is low is solved from the point of bionics, and the vocal print feature recognition accuracy and system robustness under the noise environment are effectively promoted.

The invention relates to an alternative current electric crosstalk and insulation fault monitoring line selection method of a direct current system. The direct current system is formed by an upper computer, a monitoring device, a sampling system and a current sensor. The alternative current electric crosstalk and insulation fault monitoring line selection method includes the steps of extracting a ripple crest value in the direct current system through extracting of an alternating component effective value, adopting the alternative current and direct current component separation digital filtering technology, the direct current leakage current detection technology, the recommend standard 485 (RS485) isolation communication technology and the fast fourier transform algorithm (FFT) conversion technology to monitor system bus over-the-ground alternative and direct current voltage and a ripple voltage peak value in real time to give an alarm, receiving loop leakage current information uploaded by a data collector, carrying out intelligent analysis through mode matching technology, calculating grounding resistance, carrying out artificial intelligence mode matching on feature status information of each loop and configured feature rules in the system, enabling the alternative current electric crosstalk faults, ripple voltage peak value monitoring data, grounding fault and insulation fault loop status information, loop information and the like which to be displayed on a liquid crystal display, assisting operation and maintenance workers to accurately know the current status to rapidly remove the faults.

This document discusses, among other things, an mode matching circuit for a inertial sensor including an oscillator circuit configured to selectively couple to a sense axis of an inertial sensor and to provide sense frequency information of the sense axis, a frequency comparator configured to receive the sense frequency information of the sense axis and drive frequency information of the inertial sensor, and to provide frequency difference information to a processor, and a programmable bias source configured to apply a bias voltage to the sense axis to set a sense frequency of the sense axis in response to a command from the processor, and to maintain a desired frequency difference between the sense frequency and a drive frequency of the inertial sensor.

The embodiment of the invention aims at providing an identity verification method and a mobile terminal. The identity verification method comprises the steps of obtaining an identity verification request of a user; performing security detection on the application scene of the identity verification request to obtain a detection result; and determining an identity verification mode matching with thedetection result and performing identity verification on the user based on the determined identity verification mode. The identity verification method and the mobile terminal in the embodiment can solve the problem of relatively poor flexibility of the existing identity verification method.

The invention discloses a method for implementing an electronic edition standard answer, and an application system thereof. The system comprises a computer and system software running on the computer. The system can comprise an image acquisition module and hardware such as a camera, a light source and a mechanical moving device or does not comprise the image acquisition module and the hardware and uses images acquired through scanning. The computer comprises complete system software and is layered; a user interface of the computer is connected with an application layer module comprising answer sheet editing, answer editing, scanning and marking, result displaying and managing, assisting and system managing; and a system control layer below an application comprises a data communication module, an image processing module, a mode matching module of the image processing module, a data management module and a database. Due to the electronic edition standard answer and a given image processing mode matching algorithm, an editable answer sheet system can improve the marking efficiency, namely increase the marking speed by limiting a comparison region, and support complicated application such as various answer sheet types, multiple pages and large-scale examination marking.