636results about How to "Reduce storage requirements" patented technology

A system for efficient backups using dynamically shared storage pools in peer-to-peer networks comprises one or more processors and memory coupled to the processors. The memory stores instructions executable by the processors to implement a backup manager configured to dynamically subdivide a storage pool into one or more portions of storage currently designated for local backup data and one or more portions of storage currently designated for peer-to-peer (P2P) backup data. In response to local backup data received from a backup client, the backup manager may store the local backup data in a portion of the storage pool that is currently designated for local backup data. The backup manager may then generate a P2P version of the local backup data, e.g., by encrypting and / or redundancy encoding the local backup data, and transmit parts of the P2P version to each of one or more peer devices in the P2P network.

A method for playing a song in a handheld device is disclosed. A visual representation for a plurality of musical components is provided. The visual representation includes a plurality of lanes, with each lane corresponding to one of the musical components. User input is received for one or more musical components, and musical characteristics corresponding to the musical components are modified in accordance with the user input. In order to modify musical characteristics corresponding to a particular musical component, the user selects the particular lane corresponding to the particular musical component. A first user input may be received to modify musical characteristics corresponding to a particular musical component, and the user enters a first level of the visual representation beneath the particular lane and provides user input to modify the musical characteristics corresponding to the particular musical component. A second user input may be received, and in response to the second user input, at least a second level of the visual representation is entered beneath the first level. Program instructions may be executed, and one or more music composition algorithms may be applied to song data in accordance with a song data structure to generate music output for the song. The visual representation may include an animated display synchronized with one or more of the musical components. Modifications to musical data corresponding to a particular musical component may be accompanied by a change in a visual effect corresponding to the modifications to the musical characteristics.

The invention discloses vehicle failure detection method and device, relating to a method and a device for realizing vehicle failure detection by using a smart phone. Failure detection software operating on the smart phone proposes a vehicle failure detection request, and the detection request is sent to a vehicle failure detection communication converter through a Bluetooth interface or a USB interface of the smart phone. The vehicle failure detection communication converter is directly connected with a vehicle detection port, and is used for converting the detection request from the smart phone into corresponding signals according to the requirements for application layers, data link layers, physical layers and the like specified by ISO 15031-5 and sending the corresponding signals to a vehicle electronic control unit (ECU) so as to realize vehicle failure detection. Meanwhile, the vehicle failure detection communication converter returns the feedback information of the vehicle electronic control unit (ECU) to the smart phone, and the feedback information is displayed by the smart phone.

An apparatus and methods for processing video data are described. The invention provides a representation of video data that can be used to assess agreement between the data and a fitting model for a particular parameterization of the data. This allows the comparison of different parameterization techniques and the selection of the optimum one for continued video processing of the particular data. The representation can be utilized in intermediate form as part of a larger process or as a feedback mechanism for processing video data. When utilized in its intermediate form, the invention can be used in processes for storage, enhancement, refinement, feature extraction, compression, coding, and transmission of video data. The invention serves to extract salient information in a robust and efficient manner while addressing the problems typically associated with video data sources

The client application provides VCR functionality in a data-centered video multicast network (36) through active prefetching of the fragments from broadcast channels. The player (10) has a user interface (12) that supports a plurality of VCR functions (14–26). Plural buffers (32) and their associated loaders (34) download video data under control of a manager module (38). The manager module accesses the playback pointer (40) and employs feasible point calculation module (42) to cause the loaders to selectively download segments so that VCR functions can be supported while maintaining continuous playback after the VCR function is performed.

The invention discloses an unmanned aerial vehicle scene matching auxiliary navigation method and system. The method mainly comprises seven steps as follows: acquiring and preprocessing an image, extracting local characteristics of the image, establishing a reference map vocabulary tree model, selecting a reference image matching area, realizing image matching, removing wrong matching points and correcting the navigation error. Through the invention, the best reference map can be selected in real time from a large reference image database, and accurate matching is finished; and the method and system are used for a high-accuracy positioning or auxiliary navigation process. The method and system disclosed by the invention have the advantages of good real-time performance and high accuracy, and are suitable for an unmanned aerial vehicle-borne processor.

An information retrieval system uses phrases to index, retrieve, organize and describe documents. Phrases are extracted from the document collection. Documents are the indexed according to their included phrases, using phrase posting lists. The phrase posting lists are stored in an cluster of index servers. The phrase posting lists can be tiered into groups, and sharded into partitions. Phrases in a query are identified based on possible phrasifications. A query schedule based on the phrases is created from the phrases, and then optimized to reduce query processing and communication costs. The execution of the query schedule is managed to further reduce or eliminate query processing operations at various ones of the index servers.

A decoder of LDPC codewords on GF(rq), using the iterative belief propagation algorithm comprises at least storing means to store a posteriori information on variables. Updating means updates the a posteriori information on variables, and computation means computes variables to constrain messages from a posteriori information on variables and variable to constraint messages from previous iteration. Computation means computes a constraint to variable messages from variable to constraint messages computed by the first computation means. Computation means updates the a posteriori information on variables. Shuffle means transfers the a posteriori information on variables to the first computation means, and shuffle means transfers information from the second computation means to the storing means. Compression-storage-decompression means constraint to variable messages. In one form, the invention concerns also corresponding method, computer program and system.

Apparatus and methods are described for network content in dictionary-based (de)compression. Content for compression is parsed into discrete constructions, such as phrases, words, etc. The discrete constructions are passed to a searching engine to locate network information at one or more network locator identities, such as URI's (URL's, URNs) that correspond to the discrete constructions. Upon locating the network information, a dictionary of entries corresponding to the content is created. The content is encoded from the dictionary by indicating raw or relative offsets into the network information per each of the network locator identities. Decoding occurs anti-symmetrically to the encoding. In this manner, the vastness of network content, e.g., the world wide web, is leveraged to provide relevant dictionaries for de- / encoding. Searching for candidate dictionaries, scoring same and safeguarding against volatile dictionary content are other noteworthy features. Computer program products and computing network interaction are also defined.

An apparatus for monitoring a mobile object comprising a strap suitable for engaging with a portion of said mobile object. The strap said strap comprises a tamper-detection assembly, a transceiving assembly suitable for two-way communication, and a tamper-resistant housing. The tamper resistant housing is configured to secure the transceiving assembly. The tamper resistant housing further secures a first end and a second end of the strap with the portion of the mobile object and the housing comprises a partitioning assembly suitable for partitioning the strap.

The invention discloses a configuration, refreshing and program upgrading integrated system for an SRAM (Static Random Access Memory) type FPGA (Field Programmable Gate Array), belongs to the technical field of aerospace and aims to solve the problem of SEU (Single Event Upset) of the SRAM type FPGA in a spatial irradiation environment. The configuration, refreshing and program upgrading integrated system has a capability of performing program upgrading on the SRAM type FPGA which is in on-orbit work for a long time. The configuration, refreshing and program upgrading integrated system comprises an on-site programmable logic gate array SRAM type FPGA, a comprehensive management anti-fuse FPGA, a configuration program storage chip PROM (Programmable Read-Only Memory), an on-orbit upgrading program storage chip EEPORM (Electrically-Erasable Programmable Read-Only Memory) and an RS422 interface chip. The configuration, refreshing and program upgrading integrated system disclosed by the invention can be used for effectively solving the problem of the SEU of the SRAM type FPGA which is in on-orbit work for a long time and correcting the SEU and single event accumulation inside the SRAM type FPGA without being shut down, also has the function of on-orbit program upgrading of the SRAM type FPGA, and has the characteristics of instantaneity, reliability, flexibility, universality and low cost.

The invention provides a data processing method of a neural network processor and a neural network processor. The method includes the following steps that: input data and corresponding weight absolute values are added together through an adder, wherein the input data are data of the output of a previous stage, and the input data and the weight absolute values are n-element vectors; and n-term data obtained after adding the input data and the corresponding weight absolute values together are subjected to n times of first nonlinear mapping; results obtained after the first nonlinear mapping are subjected to n times of accumulation operation through an accumulator, wherein the accumulation operation includes weight sign bit-controlled adding operation and subtraction operation; and a result obtained after the n times of accumulation operation is subjected to second nonlinear mapping, so that a processing result can be obtained, and data output is carried out, wherein the second nonlinear mapping is formulated according to the rules of neural network nonlinear mapping and the inverse mapping of the first nonlinear mapping. With the method adopted, quantization efficiency can be improved, and storage requirements and bandwidth requirements of data can be decreased.

A first processor-accessible memory device system and a second processor-accessible memory device system of a self-regulating transaction system may each store a respective local copy of one or more transaction ledgers that record transactions. A first data processing device system may be configured to generate a transaction information block associated with a particular market channel, store it in the local copy of a transaction ledger associated with the particular market channel stored in the first processor-accessible memory device system, and transmit it to a second data processing device system over a communications network for storage in the local copy of the transaction ledger associated with the particular market channel stored in the second processor-accessible memory device system.

Systems and methods for creating, modifying, interacting with and playing music are provided, particularly systems and methods employing a top-down process, where the user is provided with a musical composition that may be modified and interacted with and played and / or stored (for later play). The system preferably is provided in a handheld form factor, and a graphical display is provided to display status information, graphical representations of musical lanes or components which preferably vary in shape as musical parameters and the like are changed for particular instruments or musical components such as a microphone input or audio samples. An interactive auto-composition process preferably is utilized that employs musical rules and preferably a pseudo random number generator, which may also incorporate randomness introduced by timing of user input or the like, the user may then quickly begin creating desirable music in accordance with one or a variety of musical styles, with the user modifying the auto-composed (or previously created) musical composition, either for a real time performance and / or for storing and subsequent playback. In addition, the present invention makes use of node-based music generation as part of a system and method to broadcast and receive music data files, which are then used to generate and play music. By incorporating the music generation process into a node / subscriber unit, the bandwidth-intensive systems of conventional techniques can be avoided. Consequently, the bandwidth can preferably be also used for additional features such as node-to-node and node-to-base music data transmission. The present invention is characterized by the broadcast of relatively small data files that contain various parameters sufficient to describe the music to the node / subscriber music generator.

Systems and methods for creating, modifying, interacting with and playing music are provided, particularly systems and methods employing a top-down process, where the user is provided with a musical composition that may be modified and interacted with and played and / or stored (for later play). The system preferably is provided in a handheld form factor, and a graphical display is provided to display status information, graphical representations of musical lanes or components which preferably vary in shape as musical parameters and the like are changed for particular instruments or musical components such as a microphone input or audio samples. An interactive auto-composition process preferably is utilized that employs musical rules and preferably a pseudo random number generator, which may also incorporate randomness introduced by timing of user input or the like, the user may then quickly begin creating desirable music in accordance with one or a variety of musical styles, with the user modifying the auto-composed (or previously created) musical composition, either for a real time performance and / or for storing and subsequent playback. The graphic information preferably is customizable by a user, such as by way of a companion software program, which preferably runs on a PC and is coupled to the system via an interface such as a USB port. A modified MIDI representation of music is employed, preferably, for example, in which musical rule information is embedded in MIDI pitch data, and in which sound samples may be synchronized with MIDI events in a desirable and more optimum manner. The system architecture preferably includes a microprocessor for controlling the overall system operation. A synthesizer / DSP preferably is provided in order to generate audio streams. Non-volatile memory preferably is provided for storing sound banks. Preferably removable non-volatile storage / memory is provided to store configuration files, song lists and samples, and optionally sound bank optimization or sound bank data. A codec preferably is provided for receiving microphone input and for providing audio output. A radio tuner preferably is provided so that output from the radio tuner may be mixed, for example, with auto-composed songs created by the system, which preferably includes a virtual radio mode of operation.

The present disclosure is directed to systems and methods for generating, managing, and displaying alarms associated with monitoring a wireless network. Advantageously, the present disclosure provides one alarm per security event, and the ability to see an event in context over time and aggregate information. This results in a significant reduction in alarm volume for wireless monitoring which increases manageability and reduces storage requirements. Further, this provides better security by avoiding the “needle in the haystack” problem where you see few actionable alarms rather than being flooded by multiple copies of the same event over time. Finally, the present disclosure provides improved system scalability with large deployments by managing alarms through lesser alarm volume, and through visual representation.

A graphics system supports variable rate compression and decompression of texture data and color data. An individual block of data is analyzed to determine a compression data type from a plurality of different compression data types having different compression lengths. The compression data types may include a compression data type for a block having a constant (flat) pixel value over n×n pixels, compression data type in which a subset of 3 or 4 values represents a plane or gradient, and wavelet or other compression type to represent higher frequency content. Additionally, metadata indexing provides information to map between an uncompressed address to a compressed address. To reduce the storage requirement, the metadata indexing permits two or more duplicate data blocks to reference the same piece of compressed data.

A method for detecting radar mobile object of single channel synthetic hole diameter based on multivision sub image pair includes forming multiple symmetric sub image pairs by multivision image of synthetic hole diameter radar data, forming each sub image pair by two subvision images, utilizing subvision image cancellation to accumulate cancellation result by two - dimensional united means along position and distance directions for effectively suppressing background clutter interference as well as for realizing energy accumulation of mobile object then applying constant false alarm technique to finalize detection on mobile object.

The invention relates to an online updating method of a principal component analysis monitoring model. The method comprises the following steps that: 1) A model online updating system comprising data acquisition equipment and a monitoring computer is arranged in industry field; 2) A traditional principal component analysis (PCA) modeling module uses historical data to establish a PCA initial monitoring model; 3) After the monitoring begins, a mean value variance updating module calculates a mean value and a standard deviation sigma' of a new model according to real-time process data and the current PCA model; 4) A projection point calculation module calculates a residual vector of a new sample and transmits to a residual determination module; 5) The residual determination module determines an updating method of a projection direction according to a size of a residual vector die; if the residual is large, a principal component space adjusting module is called; if the residual value is small, a principal component direction fine adjusting module is called; finally a load vector P' nk and a characteristic value matrix lambda' kk of the new model is obtained; 6) A control limit updating module carries out control limit and updating on statistical magnitude of the model; the system finally outputs the new model omega' which is used for online monitoring and fault diagnosis during an industrial process.

The invention discloses a small molecule probe based on nano-gold and aptamer and a preparation method of the small molecule probe. The small molecule probe comprises nano-gold particles, more than one type of sulfydryl modifying deoxyribonucleic acid (DNA) fragment assembled on the nano-gold particles and more than one type of aptamer which is marked by fluorescent groups, and at least a part of fragments of the more than one type of the aptamer are complemented and hybridized with the more than one type of sulfydryl modifying DNA group. The small molecule probe is short in detecting time, simple in operation, high in specificity, good in repeatability, high in accuracy, and the false positive result is effectively reduced. By means of the aptamer technology, a high detection sensibility is achieved, and various molecules can be simultaneously detected.

The invention provides a luminous flux control method of a high definition vehicle snapshot system, belonging to the image processing field. The control method comprises the following steps: initializing the parameters of a camera, setting an initial photometric range and a photometric luminance reference value table; obtaining the current shutter speed value, gain value, reference datum value and current photometric interval of the camera; determining the photometric range of an acquired image; calculating photometric luminance value in the designated area of the photometric range; calculating the luminous flux control parameter; sending a control command, waiting in the designated photometric interval, and performing the next adjustment process. The method automatically adjusts the shutter and gain of the acquisition equipment and adjusts the light complement equipment according to the photometric result of a special area so that the pictures shot at any moment have proper exposure luminance, the problem that the exposure effects of the plate number and portraits in a vehicle on the traditional image are not consistent is solved; and the control method can be realized in the embedded system, thus the combination control of multiple devices becomes easy.

The invention discloses a multi-line scanning high-refresh-rate full-color LED driving chip and a driving method, and belongs to the field of full-color LED driving chip design. The multi-line scanning high-refresh-rate full-color LED driving chip comprises a synchronous controller, a shift register, a state register, an SRAM buffer, a gray clock generation module, a driving module, a pre-charging circuit and an analog output module. The gray scale clock generation module is used for carrying out frequency multiplication / frequency division processing on the data clock signal DCLK according to the instruction information so as to generate a gray scale clock signal GCLK for controlling the gray scale. The driving module is used for counting the gray scale clock signal GCLK to obtain gray scale counting corresponding to each row of pixel data, and generating an output waveform of a PWM signal corresponding to each row of pixel data by using N continuous rows of pixel data and the corresponding gray scale counting in each scanning process, so that multi-row scanning is realized. The analog output module is used for receiving the PWM signal and generating constant current to drive the LED lamp bead in cooperation with the pre-charging circuit. According to the chip, the refresh rate can be improved, and more scanning lines can be supported.

The invention discloses a microwave photon MIMO radar detection method comprising modulating M intermediate-frequency linear frequency-modulated signals with the same bandwidth and chirp rate and non-overlapped frequency on M optical carriers with different wavelengths to generate M optical signals where only the positive and negative second-order sidebands are retained; merging the M optical signals by an optical wavelength division multiplexer and then dividing a combined optical signal into two channels; dividing the optical signal in one channel into N reference light beams; subjecting theoptical signal in the other channel to photoelectric conversion and separating and transmitting M orthogonal linear frequency-modulated signals therein; receiving, by N receiving antennas, the targetreflected signals, performing de-chirp processing and wavelength demultiplexing, and subjecting the obtained M optical signals to photoelectric conversion, low-pass filtering and analog-to-digital conversion to obtain M*N digital signals, processing the digital signals to obtain a target detection result. The invention also discloses a microwave photon MIMO radar system. The method can greatly improve the range resolution and azimuth resolution of the radar system.

A system and method for correcting surface height measurements for optical aberration is provided. Heights determined by an autofocus tool, which may depend on surface feature angles in a focus region of interest (ROI) and on the ROI location in the field of view, are corrected based on a novel error calibration. Error calibration data includes height corrections for different feature angles in images, and for multiple locations in a field of view. Height corrections are determined by weighting and combining the angle dependent error calibration data, e.g., based on a gradient (edge) angle distribution determined in the ROIs. When Z-heights are determined for multiple ROIs in a field of view, storage of image data from particular images of a global image stack may be efficiently controlled based on determining early in processing whether a particular image is a sufficiently focused “near-peak” focused image or not.

Systems and methods for generating 2D texture coordinates for 3D surfaces meshes may assign initial 2D texture coordinates to each node within a mesh using dead reckoning, compute a conformal mapping solution to revise the texture coordinates dependent on the initial mapping, and store the texture coordinates for subsequent use in a graphics application (e.g., applying a texture and / or re-meshing a surface). The methods may include designating one node as the origin, determining the shortest distance from each other node to the origin, and computing texture coordinates for each other node in order of increasing distance to the origin. The dead reckoning operation may compute texture coordinates of each node dependent on the distance and direction of a vector formed between the node and a neighbor node to which texture coordinates have already been assigned. Isometric terms reflecting stretching or compression may be introduced following convergence by the conformal mapping.

The invention discloses a KNN-based text classification method which is suitable for nuclear safety software verification and reliability verification. The KNN-based text classification method comprises a training process processing step and a test process processing step: representing training sample data sets by information of original texts and all the titles in the texts; and constructing two DBM models according to characteristic hierarchical structures in the texts from shallow to deep, extracting and storing deep characteristics with low dimensionality and high discrimination, and determining the categories of to-be-tested texts through considering the contribute brought from text titles to the similarity calculation via proper weights in the test process. According to the method disclosed in the invention, information of the text titles are fully utilized, the classification performance, relative to the condition of taking the shallow characteristic vectors as training sets, is remarkably improved, and meanwhile, the storage demand and online calculation amount are reduced at the same time, so that the problem of characteristic vector high-dimensionality disaster is solved and the classification correctness is improved; and the method can be used for the matching of rules in safety level software reliability evaluation analysis and the establishment of a failure mode library.

The invention provides a film forming compound with modified starch as the main component, a film forming material containing the compound, and more particularly a hard-shell natural capsule made from the compound. The compound contains no or very little animal protein such as gelatin, etc. The compound can partially or completely replace the gelatin from animals for producing natural hard-shell capsules. The prepared natural capsule shell product has the advantages of excellent film forming property, high strength, good flexibility, high transparency, decomposability and microbial pollution resistance. The main component of the compound, modified starch, has stable quality and highly controllable performance.

The invention relates to a method for realizing a universal digital signature scheme generating and verifying the digital content, comprising the following procedures: setting system parameters, generating a private key of the user signature and a public verifying key, and generating the digital signature in an off-line or on-line mode and verifying the digital signature. The invention creates a novel double-trapdoor chameleon function in a special way, so the limitation that the group inverse operation is needed when part of the data is calculated in advance in the background technique is solved, and the calculating amount is reduced; the limitation to the number of signers is removed; the problem of key leakage in the background technique of threshold digital signature scheme is solved; the calculating amount of the digital signature and verification is reduced; the signature length is shortened, and the memorizing requirement is reduced; therefore, the method has higher efficiency and better scalability.

The invention relates to a multifunctional integration embedded static image compression system, wherein the image gathering module comprises a video decoder, a video gathering programmable logic device and the corresponding static storage, the image compression module comprises a digital signal processor for preliminary treatment, small wave conversion, entropy encoding, rate control and packing with the corresponding synchronous dynamic memory, and the data transmission module comprises a main controller and a general purpose serial controller. The invention realizes visualized control for rate flow with the transmission velocity of flow compression as high as 480Mbps.

The invention relates to a satellite attitude quick rescue method. The method comprises the following steps: firstly, judgment is made whether the current attitude is out of control or not, and normal attitude control is performed if the current attitude is not out of control, otherwise the current actuator stops controlling satellite attitude; secondly, a filter is determined according to existence of gyroscopic observation information, and the current satellite attitude and the angular rate are observed and updated and time update is forecasted; and thirdly, judgment is made whether the target attitude is reached according to the current satellite attitude, judgment is made that the current moment needs controlling the actuator or not if the target attitude is not reached, and attitude maneuver control is performed by utilization of the current attitude determination information and the target attitude command if the current moment needs controlling the actuator, or the procedures are repeated if the current moment does not need controlling the actuator. The satellite attitude quick rescue method can quickly rescue the attitude of an out-of-control near earth satellite, eliminates the dependency of the satellite on earth stations and the work load of the earth stations on one hand and is the backup of each other with the prior spaceborne self-rescue method on the other hand, improves the quick spaceborne self-rescue ability, and guarantees the normal operating life of the satellite.