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378 results about "Block detection" patented technology
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Emerging bad block detection
Apparatus and methods, such as those that read data from non-volatile integrated circuit memory devices, such as NAND flash. For example, disclosed techniques can be embodied in a device driver of an operating system. Errors are tracked during read operations. If sufficient errors are observed during read operations, the block is then retired when it is requested to be erased or a page of the block is to be written. One embodiment is a technique to recover data from uncorrectable errors. For example, a read mode can be changed to a more reliable read mode to attempt to recover data. One embodiment further returns data from the memory device regardless of whether the data was correctable by decoding of error correction code data or not.
Owner:MICRON TECH INC
Flash memory management system and method utilizing multiple block list windows
InactiveUS6895464B2Improve performanceImprove reliabilityInput/output to record carriersMemory loss protectionRapid accessBlock detection
The present invention provides a flash memory management system and method with increased performance. The flash memory management system provides the ability to efficiently manage and allocate flash memory use in a way that improves reliability and longevity, while maintaining good performance levels. The flash memory management system includes a free block mechanism, a disk maintenance mechanism, and a bad block detection mechanism. The free block mechanism provides efficient sorting of free blocks to facilitate selecting low use blocks for writing. The disk maintenance mechanism provides for the ability to efficiently clean flash memory blocks during processor idle times. The bad block detection mechanism provides the ability to better detect when a block of flash memory is likely to go bad. The flash status mechanism stores information in fast access memory that describes the content and status of the data in the flash disk. The new bank detection mechanism provides the ability to automatically detect when new banks of flash memory are added to the system. Together, these mechanisms provide a flash memory management system that can improve the operational efficiency of systems that utilize flash memory.
Owner:III HLDG 12 LLC
Selective amplification of minority mutations using primer blocking high-affinity oligonucleotides
InactiveUS20100009355A1Avoid detectionPreferential amplificationMicrobiological testing/measurementFermentationLow affinityNucleic Acid Probes
In certain embodiments this invention pertains to methods of detecting and / or quantifying rare mutant nucleic acids in populations of nucleic acids in which the wild-type nucleic acids are in substantially greater abundance than the rare mutants. In various embodiments the methods utilize short high affinity oligonucleotides targeted to the wild type rather than the minority or mutant sequence. Rather than directly detecting mutant DNA, these probes block detection of wild type DNA. These “blocker” probes can be used in combination with longer “detection” probes or PCR primers to amplify and / or identify the minority mutation in, e.g., clinical specimens. The combination of short high affinity blocker probes and longer, lower affinity detection probes eliminates the single base specificity / complexity tradeoff in the design of nucleic acid probes.
Owner:LOS ANGELES BIOMEDICAL RES INST AT HARBOR UCLA MEDICAL CENT
Bill automatic identification and processing system based on OCR
ActiveCN105528604AIncrease costSimple structureCharacter and pattern recognitionInvoiceImage retrieval
The invention provides a bill automatic identification and processing system based on OCR, which includes an image collection module, a quick image binary module, a text block detection and positioning module, a single column text block accurate positioning module, a multi-column text block accurate positioning and segmentation module, a text identification module, and a bill image retrieval module. The bill automatic identification and processing system based on the OCR can finish the high definition collection and compression storage of invoice bill images, and performs robust and high accurate positioning and identification on literal characters such as information of buying-and-selling sides, goods information, and billing date in each bill. The bill image identification can be conveniently retrieved. The system has the characteristics of high processing and identification precision, low cost, good robustness, and high automation degree, and can be widely used in the computer automatic management of the bills such as the bill authentication and the bill filing and query.
Owner:SOUTH CHINA UNIV OF TECH
Emerging bad block detection
ActiveUS7765426B2Read-only memoriesNon-redundant fault processingComputer hardwareOperational system
Owner:MICRON TECH INC
Two-layer congestion control method of wireless network
ActiveCN101098301AAdjust transfer rateImplement congestion controlRadio/inductive link selection arrangementsData switching networksWireless sensor networkingBlock detection
The invention discloses a two-layer block control method of wireless network, comprising that A, current network node detects self block condition and executes step B when in block, B, current network blocked node sends a block control message with self block condition to connected an ascending network node or a nearby node, C, the network node receiving the block control message, according to the block condition adjusts local node transmission speed. The invention makes clear block detection, message sending, and block control, to be directly used in real network, as wireless multi-jump network which comprises wireless network, mobile Ad hoc network and wireless sensor network or the like, thereby reducing local block.
Owner:HUAWEI TECH CO LTD +1
Information processing apparatus, information processing method, and distribution media
InactiveUS20050223403A1Shorten the timeReduce the amount requiredTelevision system detailsPicture reproducers using cathode ray tubesInformation processingControl signal
An information processing apparatus capable of accurately detecting commercials included in a television broadcast. A commercial candidate section detector detects a commercial candidate section based on the characteristics of transitions between a program and a commercial and based on the characteristics of commercials. Transitional criteria include quiet sections, scene change points and changes in the audio multiplex mode. A commercial block detector detects a commercial block, which is composed of a plurality of commercial sections and is interposed between program portions, in conformity with the number of frames of the individual commercial candidate sections detected by the commercial candidate section detector, and then outputs to a switch a control signal based on the result of such commercial block detection.
Owner:SATURN LICENSING LLC
Information processing apparatus, information processing method, and distribution media
InactiveUS6937658B1Shorten the timeReduce the amount requiredTelevision system detailsPicture reproducers using cathode ray tubesInformation processingControl signal
An information processing apparatus capable of accurately detecting commercials included in a television broadcast. A commercial candidate section detector detects a commercial candidate section based on the characteristics of transitions between a program and a commercial and based on the characteristics of commercials. Transitional criteria include quiet sections, scene change points and changes in the audio multiplex mode. A commercial block detector detects a commercial block, which is composed of a plurality of commercial sections and is interposed between program portions, in conformity with the number of frames of the individual commercial candidate sections detected by the commercial candidate section detector, and then outputs to a switch a control signal based on the result of such commercial block detection.
Owner:SATURN LICENSING LLC
Target tracking algorithm based on self-adaptive particle filter and sparse representation
InactiveCN103440645AFast executionEasy to handleImage analysisObject tracking algorithmOcclusion detection
The invention provides a target tracking algorithm based on the self-adaptive particle filter and sparse representation. According to the target tracking algorithm based on the self-adaptive particle filter and the sparse representation, the improved self-adaptive particle filter technique is adopted to serve as a tracking algorithm framework, a block sparse representation model is used for establishing an observation similarity model of a target, partitioning of the target is achieved by means of the self-adaptive partitioning technique, a structural sparse column diagram of a current target state is constructed to calculate the observation similarity of the current target state, blocking is detected by means of a blocking detection mechanism, a target / background dictionary template and a target template column diagram are updated to capture the change of the appearance of the target and the change of the environment during tracking, L1 optimization in the sparse representation is achieved by means of the variable-direction multiplicator method, and then the execution speed of the target tracking algorithm is increased. The target tracking algorithm based on the self-adaptive particle filter and the sparse representation has the advantage that the robustness to the conditions of the posture change of the tracking target, the change of the environment and lighting and blocking is strong.
Owner:SOUTHEAST UNIV
Anti-blocking target tracking method
ActiveCN106408591AEnhanced inhibitory effectTracking is durable and robustImage enhancementImage analysisPattern recognitionTrack algorithm
The invention discloses an anti-blocking target tracking method comprising the following steps: first, the area of a target is determined according to initial image frames, and a tracker forms an initial target template according to the target area; second, the parameters of a cascaded detector are initialized; third, a blocking detection mechanism is added, and the threshold is updated in real time; fourth, the tracking confidence and detection confidence of the tracker and the detector to the target are calculated respectively; and finally, the tracking result is integrated according to the confidence, the tracker is initialized by use of the detection result if the tracker fails to track the target, and the tracking result is input to a learning module in order to update the corresponding parameters of the detector. By adding the blocking detection mechanism, the drift inhibition ability of the tracking algorithm is improved, and lasting and sound tracking is realized.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Abnormal behavior detection method in video based on target positioning and characteristic fusion
InactiveCN106709447AEfficient detectionImprove discriminationCharacter and pattern recognitionAnomaly detectionDecision taking
The invention discloses an abnormal behavior detection method in a video based on target positioning and characteristic fusion. The method comprises motion area detection based on background difference and optical flow statistics, characteristic fusion based on a space-time characteristic and a depth characteristic, and decision based on multi-SVM model training. In the invention, for each dimension characteristic, a classifier is trained respectively, and finally an integration learning method is selected to carry out abnormal detection decision. The invention aims at detecting a motion target area through a rapid detection means, traditional traversing small block detection is improved, calculating efficiency is improved, and simultaneously through fusion of a characteristic layer surface and a model decision layer surface, detection accuracy is increased.
Owner:SOUTH CHINA UNIV OF TECH
Flash memory and bad block managing method thereof
ActiveCN103778065ASolve bottlenecksLess responsibleMemory adressing/allocation/relocationBlock detectionAddress mapping
The invention discloses a flash memory and a bad block managing method of the flash memory, and relates to the technical field of NANDFlash memories. The flash memory comprises a bad block detection module, a bad block address table memory module and a block address mapping module. The bad block detection module detects a block address corresponding to access operation initiated by a user and judges whether a block is a bad block or not, the bad block address table memory module conducts memory on the block address of the bad block judged by the bad block detection module, when the block address mapping module receives the access operation initiated by the user, the block address mapping module inquires whether the block address, corresponding to the access operation, in the logic address is the block address of the bad block or not from the bad block address table memory module, and if the block address, corresponding to the access operation, in the logic address is the block address of the bad block, the block address, corresponding to the access operation, in the logic address is mapped to the block address of a good block, and then is sent into the flash memory to conduct address decoding. The invention further discloses a bad block managing method by the flash memory. According to the technical scheme, the reliability of the system is improved, and the bottleneck of a SPI NAND Flash application is overcome.
Owner:GIGADEVICE SEMICON (BEIJING) INC
Firmware upgrade method and firmware upgrade device for embedded system
ActiveCN104572229ASolve the lossSolve the stability is not highProgram loading/initiatingOperational systemBlock detection
The invention relates to a firmware upgrade method and a firmware upgrade device for an embedded system. The method comprises the following steps: (a) acquiring and storing an upgrade mirror file to a first partition area of a nonvolatile memory of the embedded system, and generating the storage path information of the upgrade mirror file; (b) performing bad block detection on a second partition area of the nonvolatile memory; (c) copying the upgrade mirror file from the first partition area to the good block of the second partition according to the storage path information and modifying the start position of the operating system to be the position of the second partition; (d) performing bad block detection on a third partition of the nonvolatile memory after the operating system is restarted from the second partition in the embedded system; (e) copying the upgrade mirror file to a good block of the third partition area, and modifying the start position of the operating system to be position of the third partition area; and (f) restarting the operating system from the third partition area in the embedded system. Therefore, the upgrade failure problem brought by the bad block generated in the nonvolatile memory such as NAND FLASH in the operating system upgrading process can be solved.
Owner:XIAN NOVASTAR TECH
Partial bad block detection and re-use using epwr for block based architectures
InactiveUS20160019111A1Memory architecture accessing/allocationMemory adressing/allocation/relocationComputer hardwareBlock detection
Systems and methods for partial bad block reuse may be provided. Data may be copied from a block of a first memory to a block of a second memory. A post write read error may be detected in a first portion the data copied to the block of the second memory without detection of a post write read error in a second portion of the data copied to the block of the second memory. The block of the second memory may be determined to be a partial bad block usable for storage in response to detection of the post write read error in the first portion of the data but not in the second portion of the data.
Owner:SANDISK TECH LLC
Floor defect automatic detection method based on computer vision and deep learning
ActiveCN109859171AAbility to achieve fully automatic detectionImage analysisImaging processingBody area
The invention discloses a floor defect automatic detection method based on computer vision and deep learning, which comprises the following steps of: before detection, making a sample by utilizing anexisting floor defect image, and training a floor defect detection model according to a transfer learning theory; the detection process comprises the following steps: firstly, segmenting and extracting a floor image wall body area according to traditional image processing; secondly, partitioning a wall body area of the floor image, detecting each sub-block by applying a model, and accelerating byadopting a parallel processing mode; integrating and converting a sub-block detection result, and marking the position of the defect on the original image; and finally, correcting the detection result, and making a new sample for re-training the model to improve the detection performance of the model. The problems that in the prior art, the speed and precision of floor image defect detection are difficult to achieve at the same time, the adaptability of a detection algorithm is not high, and the detection effect is easily affected by the photo shooting environment are solved.
Owner:北京亦庄大数据科技发展有限公司
Bad block management method for flash memory
ActiveCN102722443AGuaranteed reliabilityAvoid destructionMemory adressing/allocation/relocationBlock detectionSpace partitioning
The invention provides a bad block management method for a flash memory. The method comprises the following steps of: dividing the storage space of the flash memory into a first area comprising a plurality of blocks and a second area comprising a plurality of blocks; performing bad block detection on the flash memory to acquire information about bad blocks; establishing a mapping relation between the bad blocks in the first area and normal blocks in the second area according to the acquired information about the bad blocks, and generating a block mapping quick access table comprising the information about the established mapping relation; and respectively storing the generated block mapping quick access table into a plurality of bad block management information blocks in the second area, wherein a plurality of bad block management information blocks are any normal blocks which are positioned in the second area and do not have the mapping relation with the bad blocks in the first area.
Owner:SAMSUNG SEMICON CHINA RES & DEV +1
Storage system
ActiveUS20140025917A1Limit decrease of retrieval performanceLower performance requirementsInput/output to record carriersError detection/correctionComputer hardwareData store
A storage system according to the present invention includes: a block detecting means for checking whether respective block data obtained by division are already stored in a storage device; and a data writing means for storing the respective block data obtained by division with duplicated storage eliminated into the storage device. The block detecting means detects a share rate representing a rate of a shared portion between a plurality of consecutive block data configuring a predetermined range in write target data among the block data obtained by division and a plurality of block data in a predetermined range already stored consecutively in the storage device. The data writing means, depending on the detected share rate, newly stores the block data obtained by division, into the storage device.
Owner:NEC CORP
Road blocking information extraction based on deep learning image classification
ActiveCN110298321AImprove generalization abilitySimple structureCharacter and pattern recognitionNeural architecturesDisaster areaPost disaster
The invention discloses a road blocking information extraction based on deep learning image classification, and the method comprises the steps: building a road blocking image classification sample library through employing a disaster typical case image, carrying out the training of a convolutional neural network, and obtaining an initial convolutional neural network model CNNmodel0; obtaining a post-disaster image I (x) and a road vector R (x) of the research area x, and detecting road blocking to obtain a to-be-detected sample Dn (x); using the trained network CNNmodel0 to perform multi-pointroad blocking detection of adding detection points in the vertical normal direction of the road vector direction on the sample Dn (x) to be detected: selecting a small number of road segments to generate new training sample data S1, and performing network fine tuning on the existing network; and repeating the road blocking classification detection work until the detection result meets the precision requirement. Various precision evaluation indexes of the improved convolutional neural network model are superior to those of an original model, and the improved convolutional neural network modelis more suitable for specific problems of disaster area road blocking image classification and detection.
Owner:AEROSPACE INFORMATION RES INST CAS
Method for detecting all-zero blocks in H.264
InactiveCN102148989AEliminate transform and quantization processReduce computational complexityTelevision systemsDigital video signal modificationComputation complexityParallel computing
The invention provides a method for detecting all-zero blocks in H.264. Based on the relativity between a reference block and a current encoding block and by combining with an idea of mode recognition, a linear classifier for all-zero block detection is provided. Through carrying out all-zero block prejudgment before transform and quantization, the condition that a residual block coefficient is zero can be detected in advance, thereby omitting the transform and quantization process of a residual block. The method has an extremely great significance for encoding of a video with a low code rate, because the proportion of the all-zero blocks is very large under the condition of low code rate, and the calculation complexity of the transform and quantization can be greatly reduced if most of all-zero blocks are detected, thereby improving encoding efficiency.
Owner:XI AN JIAOTONG UNIV
Device and method for giving importance information according to video operation history
InactiveUS20090202218A1Improving retrieving efficiencyImprove editing efficiencyTelevision system detailsElectronic editing digitised analogue information signalsSimulationBlock detection
A device for giving importance information according to a video operation history includes an interest video searching operation block detection unit provided with a minimum searching operation block detection unit for detecting a minimum searching operation block as a minimum unit which exists in an interest video searching operation block from a preview log as a video operation history of a user, and a searching operation block setting unit for setting the interest video searching operation block through determination with respect to an operation previous and subsequent to the detected minimum searching operation block as a base point based on a feature of the interest video searching operation block.
Owner:PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
Centerline extraction method
InactiveCN105096291AAvoid errorsImprove accuracyImage analysisCharacter and pattern recognitionHead and neckIntervertebral disk
The invention provides a centerline extraction method. The method comprises the steps that a spine image is provided; an intervertebral disk point and a head and neck joint point in the spine image are detected based on a classification device; and the intervertebral disk centerline of the spine image is extracted based on the intervertebral disk point and the head and neck joint point. According to the invention, the classification device is used to detect the intervertebral disk and the head and neck joint point of the spine image; regional growth is carried out on a detection result probability graph to calculate a communication domain to acquire the intervertebral disk point; intervertebral disk center point and centerline are calculated based on a spine fit line and the detection probability graph; the classification device is used to directly detect the intervertebral disk; spinal block detection is not before intervertebral disk positioning; and errors caused by splitting is avoided.
Owner:SHANGHAI UNITED IMAGING HEALTHCARE
An image description method constructed based on a hierarchical feature relation graph
ActiveCN109711464AImprove accuracyInternal combustion piston enginesCharacter and pattern recognitionText detectionData set
The invention relates to the field of computer vision recognition, and provides an image description method constructed based on a hierarchical feature relation graph, which comprises the following steps: constructing a training data set; inputting the image into a block detection module, and outputting block visual information; inputting the image into a target detection module, and outputting target visual information; inputting the image into a text detection module, and outputting text visual information; Respectively inputting the three visual information into a description generator, respectively constructing a relational graph of each type of visual information and training image coordinate information, and optimizing the three visual information; Screening and fusing the three types of visual information to obtain multi-modal characteristics; inputting the description words into a recurrent neural network to extract feature information, and predicting the next description wordto generate a complete description sentence. According to the method, various types of visual information are optimized, screened and fused, so that any input test image is described, and the image description accuracy can be effectively improved.
Owner:SUN YAT SEN UNIV
NAND Flash fault-tolerance method based on FPGA (Field Programmable Gate Array)
ActiveCN105843749AImprove space utilization efficiencyResolve detectionMemory adressing/allocation/relocationFault toleranceManagement algorithm
The invention discloses a NAND Flash fault-tolerance method based on a FPGA (Field Programmable Gate Array). The NAND Flash fault-tolerance method comprises the following steps: carrying out Flash bad block detection, bad block management and dynamic table lookup. The bad block is detected through judging whether the state of a Flash write zone bit is the same with read-write contents or not. The addresses of detected good blocks and bad blocks are managed by a bad block management algorithm, and an address mapping table is established. The FPGA carries out write, read and erasure operations on the Flash through a dynamic table lookup way, and the accuracy and the efficiency of data access are greatly improved. The method can directly improve the space use ratio of the Flash, the integral performance and the processing speed of the Flash can obtain an important guarantee, and the method has a reference meaning for the application development of the new-generation large-volume NAND Flash.
Owner:ZHEJIANG UNIV
Prompt method and device, storage medium, and mobile terminal
ActiveCN108712606AQuality improvementAccurately determineTelevision system detailsColor television detailsComputer graphics (images)Computer vision
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD
Data deduplication method, apparatus and system
InactiveCN105808169AWithout sacrificing deduplicationImprove performanceInput/output to record carriersParallel computingBlock detection
The present invention provides a data deduplication method, apparatus and system. The method comprises: carrying out coarse-grained data block division on a target file, so as to divide the target file into a plurality of coarse-grained data blocks; carrying out duplicate data block detection on the coarse-grained data blocks, and obtaining a first result; based on the first result, carrying out fine-grained data block division on each non-repetitive coarse-grained data block in the plurality of coarse-grained data blocks, so as to divide the non-repetitive coarse-grained data block into a plurality of fine-grained data blocks; carrying out duplicate data block detection on the fine-grained data blocks, and obtaining a second result; and based on the second result, storing non-repetitive fine-grained data blocks in the plurality of fine-grained data blocks, wherein the size of each coarse-grained data block is greater than the size of each fine-grained data block, and the demarcation of the coarse-grained data block division belongs to the demarcation of the fine-grained data block division.
Owner:LENOVO (BEIJING) LTD
Token stream differencing with moved-block detection
ActiveUS7398200B2Simpler change trackingEfficient detectionNatural language data processingSpecial data processing applicationsBlock detectionComputer science
Methods and apparatus implementing systems and techniques for differencing token streams and detecting moved blocks of tokens. In general, in one implementation, the technique includes: obtaining a first token stream and a second token stream, comparing the first and second token streams to identify a group of tokens that are substantially similar in the first and second token streams, the similar-tokens group including common sub-sequences, which are identical in the first and second token streams, and at least one unmatched token, and presenting matched token information corresponding to the similar-tokens group to represent changes in document flow.
Owner:ADOBE INC
Method and device for detecting blocking rotation of direct current brush motor
ActiveCN109687383AImprove practicalityImprove reliabilityEmergency protection detectionWorkloadBlock detection
The invention discloses a method and device for detecting blocking rotation of a direct current brush motor, wherein the method comprises the following steps: in each starting stage of the direct current brush motor, the blocking rotation detection threshold value is obtained according to the current starting characteristic analysis of the direct current brush motor, and the detection is carried out according to the blocking rotation detection threshold value in the subsequent blocking rotation detection. As the current starting characteristic of the direct current brush motor is analyzed during each starting process of the direct current brush motor to obtain the blocking detection threshold value, the blocking detection threshold value can be suitable for the direct current brush motor under different temperatures and voltages, thereby improving the practicability and the reliability of the technical scheme, and reducing the calibration workload due to no need of calibrating each direct current brush motor.
Owner:BEIJING JINGWEI HIRAIN TECH CO INC
Vehicle blocking detection and segmentation method in video frame
The invention discloses a vehicle blocking detection and segmentation method in a video frame. The method comprises the following steps of: obtaining a motion object by a background subtraction method, and carrying out cavity removal on a foreground motion vehicle to obtain the complete foreground motion vehicle; constructing a vehicle foreground statistical model, and judging whether a vehicle is blocked in a motion block mass by adopting a statistical model into which an error correction mechanism is added; calibrating a blocking region according to an obtained blocking point in a situation that the vehicle is determined to be blocked; extracting the transverse edge information of the blocking region by a Sobel operator; and then combining an edge of the blocking region and a foreground edge to obtain a complete vehicle segmentation result. In the invention, the real-time property of the method is taken into consideration, and the problems of blocking between different vehicles and blocking of different degrees can be also well solved at the same time. A technology has a wide application prospect and development potential in the fields of vehicle detection, moving vehicle tracing, automobile auxiliary motion and vehicle behaviour model analysis, so that the real-time property and accuracy of target detection can be improved.
Owner:崔志明 +2
Method and system to detect malicious software
ActiveUS7877801B2Memory loss protectionDigital data processing detailsComputer hardwareHandling system
Owner:NORTONLIFELOCK INC
Blocking detection method of external circulation air inlet of heat exchanger and system thereof
InactiveCN101644634AReduce maintenance costsEasy to cleanStructural/machines measurementDevices using electric/magnetic meansEngineeringNetwork management
The invention discloses a blocking detection method of an external circulation air inlet of a heat exchanger and a system thereof. The method comprises: a heat exchanger detects the rotation speed ofan external circulation fan and sends a detected rotation speed value to a network management center; the network management center compares the rotation speed value with a preset range so as to judgewhether the external circulation air inlet is blocked or not. The invention can solve the problems that the heat exchanger needs dedusting periodically on a base station site in the relevant technology and maintenance cost is high; thus, the invention can accurately and remotely judge the state of the external circulation air inlet of the heat exchanger and avoid aimless maintenance of the heat exchanger on the base station site, so that the invention not only effectively cleans the heat exchanger but also lowers the maintenance cost of equipments.
Owner:ZTE CORP
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