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42results about How to "Reduce latency impact" patented technology
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Systems and methods for mitigating latency in a data detector feedback loop
InactiveUS8018360B2Reduce latency impactLower latencyModification of read/write signalsElectric signal transmission systemsSampling instantData retrieval
Methods and systems for mitigating latency in a data detector feedback loop are included. For example, a method for reducing latency in an error corrected data retrieval system is included. The method includes performing an analog to digital conversion at a sampling instant to create a digital sample, and performing a data detection on the digital sample to create a detected output. The detected output is compared with the digital sample to determine a phase error. During an interim period, the digital sample is adjusted to reflect the phase error to create an adjusted digital sample. After the interim period, the sampling instant is adjusted to reflect the phase error.
Owner:LSI CORP +1
Rapid ambiguity determination method among network RTK reference stations of big-dipper three-frequency signal
Owner:WUHAN UNIV
Training method and device for acceleration distributed deep neural network
InactiveCN108876702AImprove training efficiencyReduce latency impactProcessor architectures/configurationProgram controlCompletion timeNetwork model
The embodiment of the invention provides a training method and device for an acceleration distributed deep neural network. The method comprises the following steps that: on the basis of parallel training, designing the training of the deep neural network into a distributed training pattern, and dividing a deep neural network model to be trained into a plurality of sub-networks; dividing a trainingsample set into a plurality of sub-sample sets; and on the basis of distributed cluster architecture and a preset scheduling method, utilizing the plurality of sub-sample sets to train the deep neural network, wherein each piece of training is carried out by a plurality of sub-networks so as to finish the distributed training of the deep neural network. Since the influence of network delay for the distributed training sub-network can be reduced through data localization on the basis of the distributed cluster architecture and the preset scheduling method, a training strategy is regulated in real time and the progresses of parallel-training sub-networks can be synchronized, the training completion time of the distributed deep neural network can be shortened, and the training of the deep neural network is accelerated.
Owner:BEIJING UNIV OF POSTS & TELECOMM
Improved Smith estimator-based H-infinity control method of aero engine
ActiveCN110850740ARealize Estimated CompensationImprove stabilitySimulator controlClosed loop feedbackControl system
The invention provides an improved Smith estimator-based H-infinity control method of an aero engine, and belongs to the technical field of aero engine control and simulation. The improved Smith estimator-based H-infinity control method comprises the steps of building a reasonable small deviation linear model for an aero engine non-linear model, and selecting data of a state space model in a certain working condition as a controlled object designed by a controller; selecting an appropriate performance index weighting function parameter, solving an H-infinity output feedback controller, and adjusting the parameter to basically achieve control requirement; and designing an improved-structure Smith estimation compensator according to a closed-loop feedback control system designed according toan H-infinity control law so as to form a composite controller, additionally arranging a deviation correction controller, designed according to a PID control law, in the control system according to relatively large deviation between an estimation model and the parameter of the controlled object and a true model and the parameter, employing the deviation correction controller to stabilize the controlled object, making adaptability correction according to comparison between the controlled object and a model output signal so as to further improve robustness of the system.
Owner:DALIAN UNIV OF TECH +1
Arc welding robot control system and method thereof
ActiveCN101422837AUneven thicknessReduce latency impactProgramme controlComputer controlChange positionsRobot control system
An arc welding robot control system of the present invention includes memory devices, controlling devices, a welding condition changing position calculating device (32), a weaving operation controlling device (35) that outputs a signal of completion of one weaving cycle every time when a welding torch completes to perform one weaving cycle of a predetermined movement pattern, a welding condition calculating device (33) for calculating to-be-changed welding conditions, and a welding condition changing device (34) that changes welding conditions of an arc welding robot, based on to-be-changed welding conditions, every time when a signal of completion of one weaving cycle is input. With this configuration, it enables a continuous change of welding conditions and a copying arc welding with high accuracy even in the case in which the arc welding robot performs a weaving operation.
Owner:KOBE STEEL LTD
Virtual machine administration system and virtual machine administration method
The present invention provides migrating a virtual machine upon a virtual machine operation server at the nearest location as derived from location coordinate information of a client terminal, and connecting same to a virtual machine operation server with low wiring latency. Specifically, a location optimization server on a network administers a virtual machine operation server whereon a virtual machine which provides a service to a client terminal operates, and directs the migration of the virtual machine to a virtual machine operation server which is a migration destination according to the location coordinate information relating to the client terminal. In such a circumstance, the location optimization server carries out the direction relating to the migration of the virtual machine on both the migration source (present) virtual machine operation server whereon the virtual machine is operating and the migration destination virtual machine operation server.
Owner:NEC CORP
Data transfer circuit, solid-state imaging device and camera system
InactiveCN101304470AReduce latency impactHigh precisionAnalogue/digital conversionTelevision system detailsEngineeringData shipping
Owner:SONY CORP
Timing synchronization controller of ground simulation system
InactiveCN102315929AEnsure consistencyReduce latency impactSynchronising arrangementTimestampCoupling
The invention relates to a timing synchronization controller of a ground simulation system. Aiming at the characteristics that each sub-system of the ground simulation system has different simulation step sizes and high parallelism and coupling requirements, the controller adopts a timing method based on combination of a hardware timing module and a timing module, so that the consistency of system time is ensured when the sub-systems with different simulation step sizes are timed; and meanwhile, a timestamp sequence based level process scheduling method, and a level synchronization control technical scheme are adopted, so that the redundant information in system control information is reduced, the synchronization and the parallelism of system simulation are ensured, and the degree of the coupling of the system is improved.
Owner:BEIJING INST OF SPACECRAFT SYST ENG
Bypass blocking method, device, system, and electronic device
ActiveCN107645470AReduce deployment dependenciesReduce the difficulty of deploymentNetworks interconnectionTTEthernetTelecommunications
The invention provides a bypass blocking method, device, system, and electronic device. The bypass blocking method comprises the steps that a bypass blocking device receives a mirror image report of predetermined message from a distributing device, wherein the distributing device is used for distributing the downstream data of an Internet service provider (ISP network); the bypass blocking devicedetermines whether blocking is required or not based on the mirror image report of the predetermined message, and generates a blocking report having the same destination address as the predetermined message, and sends the blocking report to a plurality of core routers. The invention is advantageous in that the disposition difficulty and cost of bypass blocking can be reduced, and the time-delay demand of the bypass blocking can be guaranteed to a certain degree.
Owner:ALIBABA GRP HLDG LTD
Information prompting method and device in mobile terminal
InactiveCN101867634AReduce operational burdenReduce latency impactTelephone sets with user guidance/featuresReal-time computing
The invention discloses an information prompting method and an information prompting device in a mobile terminal. The method comprises the following steps of: establishing a prompting box corresponding to an operation result of a current process; displaying the established prompting box to a user; recording the display time of the prompting box and detecting a closing indication of a user continuously; and when the close indication of the user is not detected and the display time reach a display time threshold, closing the prompting box. By using the method and the device, the operation burden of a user can be lightened; and delayed impact on other user operations can be reduced.
Owner:SHENZHEN COSHIP ELECTRONICS CO LTD
Appointed subharmonic detection method based on cascade delay signal elimination method
ActiveCN105137179AQuick extractionImprove dynamic response performanceSpectral/fourier analysisHarmonicPower grid
The invention discloses a subharmonic detection method based on cascade delay signal elimination method, comprising steps of obtaining a,b,c three-phase voltage signals of a power grid load terminal through a voltage sensor and a digital regulation circuit, utilizing a Clark transform to obtain a voltage signal under two-phase static coordinate system vabc=[va,vb,vc]<T>, (2) performing filtering process based on the delay signal elimination on the V alpha Beta which is obtained through transformation to obtain voltage signals which only contains odd- number harmonic component and voltage signal which only contains the even-number harmonic component, (3) performing filtering processing based on the cascade delay signal elimination on the voltage signals which only contain the odd-number harmonic wave component and the voltage signals which only contain the even-number harmonic component to obtain the components of positive sequence and negative sequence of any subharnonic, and (4) performing superposition on the harmonic components to obtain a total harmonic signal. The invention is high in detection accuracy and high a practicability.
Owner:STATE GRID GANSU ELECTRIC POWER CORP +2
Method for carrying out high-precision relative navigation based on GNSS through employing single receiver
InactiveCN107356952AReduce latency impactAvoiding the Difficulty of Ambiguity ResolutionSatellite radio beaconingClock errorSingle point
The invention discloses a method for carrying out high-precision relative navigation based on GNSS through employing a single receiver, and the method comprises the following steps: 1, making preparation; 2, determining the position of the receiver and a clock error at an initial moment; 3, searching a public visible satellite at a current epoch moment and a former epoch moment; 4, building a carrier epoch single-difference model; 5, setting an initial estimation value and a calculation constant at a current moment; 6, calculating the position of the receiver and the clock error at the current moment; 7, judging whether the calculation result meets the requirements or not; 8, updating a position estimation value and a clock error estimation value 9, judging whether the current moment is the last epoch or not. The carrier epoch single-difference model is built through the above flow, and a single-point positioning method is used as assistance. The method achieves the high-precision navigation through a relative positioning method, and the method is implemented through the single receiver, so the method has low requirements, is low in cost, and facilitates the popularization and application.
Owner:BEIHANG UNIV
Four-frequency cycle slip detection and repairing method based on linear combination optimization
ActiveCN110441800AMake the most of redundancyAvoid considering wavelengths separately and independentlySatellite radio beaconingObservation dataEngineering
The invention provides a four-frequency cycle slip detection and repairing method based on linear combination optimization. Four linear combinations are optimized for cycle slip detection and repairing with the maximum fixation probability as a target on basis of four-frequency observation data. Current cycle slip detection and repairing methods are mainly based on three-frequency observation values, and there is no cycle slip detection and repairing method based on four-frequency observation values. The four-frequency cycle slip detection and repairing method fills up the blank of cycle slipdetection and repairing based on four-frequency observation data and has great significance in giving full play to information redundancy brought by the four-frequency observation data and further improving the positioning accuracy.
Owner:NAT UNIV OF DEFENSE TECH
Three-frequency cycle slip detection and restoration method based on optimal fixed probability
ActiveCN110441801ALow combined noiseReduce latency impactSatellite radio beaconingAlgorithmRestoration method
The invention provides a three-frequency cycle slip detection and restoration method based on optimal fixed probability, the maximum fixed probability is treated as a target, preferably, three sets oflinear combinations are optimized, and the probability of three-frequency cycle slip detection and restoration is improved. In the existing method, three conditions of long-wave length, low combinednoise and low ionized layer delay are considered respectively, and due to the fact that the three conditions cannot be met at the same time, the existing method is mainly of optimizing a plurality ofsets of linear combinations for cycle slip detection and restoration in a qualitive way, and the cycle slip fixed probability is not high. According to the method in the invention, the three constraints do not need to be considered independently, the three constraints are converted into fixed probabilities, the maximum fixed probability is treated as the target, and linear combination optimizationis carried out, so that the three-frequency cycle slip detection and restoration probability is the maximum, and great significance is brought to fully exerting the three-frequency observation data advantage and finally improving the positioning precision.
Owner:湖南中电星河电子有限公司
Method for enhancing teleoperation telepresence based on virtual environment reconstruction
InactiveCN106598224AEnhanced presenceAccurately establishedInput/output for user-computer interactionDesign optimisation/simulationDamping factorTeleoperation
The invention relates to a method for enhancing teleoperation telepresence based on virtual environment reconstruction. The method comprises the following steps: distinguishing partial parameters (rigidity coefficient and damping coefficient) of a far-end environment through the far-end real-time feedback force, reconstructing the far-end environment at a main terminal so that the establishment of the main terminal virtual environment is more precise; not only is the influence of the time delay lowered, but also the real-time virtual feedback force is provided for a main terminal operator; and meanwhile, the virtual-reality technology is used for the main terminal, the telepresence of the main terminal operator is improved, and the operator can better finish the task.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Method for realizing quasi-real-time transmission of media data
InactiveCN102325136AAchieve timingReduce context switching overheadProgram initiation/switchingTransmissionTime delaysProgram planning
The invention relates to a method for realizing quasi-real-time transmission of media data. The method comprises the following steps of: firstly, setting planned pocket transmitting time and assembling media data to be assembled to obtain a data packet to be transmitted; then calculating interrupted fixed time length according to the planned pocket transmitting time and registering a pocket transmitting function and a data pocket to be transmitted to an interruption processing program, waiting for interruption and calling and adding the system into a kernel waiting queue; after interrupted fixed time is expired, generating interruption, triggering the interruption processing program to finish the transmission of the data pocket to be transmitted; and after transmission is finished, awakening a corresponding pocket transmitting system in the kernel waiting queue for calling. By using the method, the context switching cost caused by working space switching is reduced, the influence on time delay caused by system dispatching is lowered and the quasi-real-time transmission of the data pocket is realized.
Owner:ZTE CORP
Delta-Sigma modulator and signal conversion method
ActiveCN108134608AReduce latency impactAnalogue/digital conversionAnalogue conversionDelayed timeEngineering
Owner:REALTEK SEMICON CORP
System And Method For Low Power Wordline Logic For A Memory
ActiveCN104867521AReduce leakage currentReduce power consumptionDigital storageOperating systemPower consumption
Owner:QUALCOMM INC
Decryption method and circuit, and corresponding device
PendingCN110245498AFast executionQuick protectionDigital data protectionInternal/peripheral component protectionComputer hardwareData access
The application relates to a decryption method and a circuit, and a corresponding device. The method for data decryption comprises receiving (32), over an AXI bus (10) operating in burst mode, data access requests for data units stored in a memory (MC), subdividing the requests received into requests for encrypted data units and requests for non-encrypted data units, forwarding both requests for encrypted data units and requests for non-encrypted data units towards the memory (MC), retrieving the respective sets of data units over the AXI bus (20), and applying Advanced Encryption Standard, AES, processing (60, 70, 80) to the requests for encrypted data units by calculating (72) decryption masks for the encrypted data units and applying (80) the decryption masks calculated to the encrypted data units retrieved, and subdividing the requests into requests for encrypted data units and requests for non-encrypted data units is performed depending on data start addresses and security information conveyed by the requests.
Owner:STMICROELECTRONICS SRL
Content proofreading method and device, mobile terminal and storage medium
PendingCN114519345AProofreadingReduce complexityMetadata text retrievalNatural language data processingComputer networkTelecommunications
Owner:广东南方网络信息科技有限公司
A four-frequency cycle-slip detection and repair method based on linear combination optimization
ActiveCN110441800BMake the most of redundancyAvoid considering wavelengths separately and independentlySatellite radio beaconingAlgorithmObservation data
The present invention proposes a four-frequency cycle slip detection and repair method based on linear combination optimization. Based on four-frequency observation data, with the goal of maximizing the fixed probability, four groups of linear combinations are optimized for cycle slip detection and repair. The current cycle slip detection and repair method is mainly based on the three-frequency observation value, and there is no cycle slip detection and repair method based on the four-frequency observation value. The information redundancy brought by the four-frequency observation data is of great significance to improve the positioning accuracy.
Owner:NAT UNIV OF DEFENSE TECH
Timing synchronization controller of ground simulation system
InactiveCN102315929BEnsure consistencyReduce latency impactSynchronising arrangementTimestampCoupling
The invention relates to a timing synchronization controller of a ground simulation system. Aiming at the characteristics that each sub-system of the ground simulation system has different simulation step sizes and high parallelism and coupling requirements, the controller adopts a timing method based on combination of a hardware timing module and a timing module, so that the consistency of system time is ensured when the sub-systems with different simulation step sizes are timed; and meanwhile, a timestamp sequence based level process scheduling method, and a level synchronization control technical scheme are adopted, so that the redundant information in system control information is reduced, the synchronization and the parallelism of system simulation are ensured, and the degree of the coupling of the system is improved.
Owner:BEIJING INST OF SPACECRAFT SYST ENG
A kind of prefetch fifo circuit and method
ActiveCN110442321BReduce latency impactLower latencyRegister arrangementsComputer aided designComputer architectureData selection
Owner:NANJING SEMIDRIVE TECH CO LTD
Segmentation and verification method, device, electronic device, storage medium
ActiveCN113255273BReduce latency impactCounteract the effect of delayCAD circuit designSpecial data processing applicationsComputer hardwareFlip-flop
Owner:S2C
A fast determination method of ambiguity between network rtk reference stations of Beidou tri-frequency signal
The invention discloses a rapid ambiguity determination method among network RTK reference stations of a big-dipper three-frequency signal. The method is characterized by firstly, rapidly determining a big-dipper super-wide lane ambiguity; then, using two carrier-wave-phase non-ionosphere combination observation values and the super-wide lane ambiguity to determine a wide lane ambiguity; and then, using Kalman filtering to calculate zenith troposphere delay correction between the phase non-ionosphere combination observation values and the reference stations; and finally, fixing an original ambiguity. The method comprises the following steps of (1) fixing the super-wide lane ambiguity and the wide lane ambiguity; (2) according to the Kalman filtering, estimating two-reference-station zenith troposphere delay and ambiguity floating point solutions of two groups of phase non-ionosphere observation values; and (3) according to a non-ionosphere combination ambiguity and the wide lane ambiguity, fixing the original ambiguity. In the invention, an advantage of the big-dipper three-frequency signal is fully used and the Kalman filtering is combined so as to realize rapid and accurate fixation of the ambiguity among big dipper network RTK three-frequency reference stations.
Owner:WUHAN UNIV
Method and device for task management
ActiveCN107085536BReduce latency impactMission level upProgram initiation/switchingTask managementIndustrial engineering
The invention provides a task management method and apparatus. The method comprises the steps of comparing task levels of an upstream task and a downstream task in a task stream; and when the task level of the downstream task is higher than that of the upstream task, increasing the task level of the upstream task. According to the task management method and apparatus, the upstream task is executed more quickly, so that the downstream task can be executed as early as possible, and the delay influence of the upstream task on the downstream task is reduced.
Owner:ADVANCED NEW TECH CO LTD
Measurement method and device, computer equipment and storage medium
PendingCN114025380AAvoid being measurableAvoid the situationNetwork traffic/resource managementHigh level techniquesTelecommunicationsTerminal time
The invention relates to a measurement method and device, computer equipment and a storage medium. The measurement method comprises the following steps: respectively transmitting measurement indication information to each piece of edge UE; the measurement indication information is used for indicating the edge UE to perform physical cell identification code PCI measurement on each adjacent cell to be measured; wherein the measurement indication information comprises downlink control information (DCI) which adopts bits to indicate the measurement purpose and the measurement sequence of each round; the measurement purpose comprises the starting frequency point and the measurement number of the round, and the measurement sequence comprises the measurement of the frequency points from the starting frequency point to the completion of the measurement number; and receiving a measurement report transmitted by the edge UE; wherein the measurement report contains the PCI measurement result. According to the method, the situation that part of frequency points cannot be measured and measurement is repeated is avoided, the power consumption of the terminal is reduced, and the influence of an ANR function on terminal time delay is reduced.
Owner:COMBA TELECOM SYST CHINA LTD
Information processing method and device, base station equipment and communication system
PendingCN113068264AReduce latency impactWireless communicationInformation processingCommunications system
The invention discloses an information processing method and device, base station equipment and a communication system, wherein the information processing method comprises the steps: responding to a BWP switching instruction sent by a base station to a terminal, the base station sends scheduling information to the terminal on an original BWP, the base station detects whether feedback information of the terminal based on the scheduling information is received, if yes, the base station continues to send the BWP switching instruction, until the base station determines that the terminal correctly receives the BWP switching instruction. According to the invention, the base station judges whether the BWP switching instruction is correctly received by the terminal by sending the scheduling information, and if the terminal fails to receive, the BWP switching instruction can be quickly retransmitted, so that the delay influence of BWP switching on terminal service scheduling is reduced.
Owner:LENOVO (BEIJING) LTD
Activation method and device, control device, network equipment and optical network system
ActiveCN112188324AAchieve activationReduce latency impactMultiplex system selection arrangementsStar-type electromagnetic networksComputer hardwareNetworked system
An embodiment of the invention provides an activation method and device, a control device, network equipment and an optical network system. A new system ONU is activated on a first OLT of an existingsystem, then the first OLT sends activation information of the new system ONU to a second OLT of the new system or an activation agent ONU activated by the second OLT sends the activation informationto the second OLT, and the activation of the ONU of the new system on the second OLT is realized. Therefore, the DAW channel is only used for communication between the new system ONU and the first OLT, and the problem of OLT signal attenuation of the existing system due to use of an optical splitter is prevented. Therefore, according to the method and the device disclosed in the scheme provided bythe embodiment of the invention, the delay influence on the service when the ONU is activated can be reduced, the communication effect of the existing system cannot be influenced by the existence ofthe optical splitter, and the communication performance of the PON is enhanced.
Owner:ZTE CORP
A Tri-frequency Cycle Slip Detection and Repair Method Based on Optimal Fixed Probability
ActiveCN110441801BLow combined noiseReduce latency impactSatellite radio beaconingAlgorithmObservation data
The invention provides a three-frequency cycle slip detection and restoration method based on optimal fixed probability, the maximum fixed probability is treated as a target, preferably, three sets oflinear combinations are optimized, and the probability of three-frequency cycle slip detection and restoration is improved. In the existing method, three conditions of long-wave length, low combinednoise and low ionized layer delay are considered respectively, and due to the fact that the three conditions cannot be met at the same time, the existing method is mainly of optimizing a plurality ofsets of linear combinations for cycle slip detection and restoration in a qualitive way, and the cycle slip fixed probability is not high. According to the method in the invention, the three constraints do not need to be considered independently, the three constraints are converted into fixed probabilities, the maximum fixed probability is treated as the target, and linear combination optimizationis carried out, so that the three-frequency cycle slip detection and restoration probability is the maximum, and great significance is brought to fully exerting the three-frequency observation data advantage and finally improving the positioning precision.
Owner:湖南中电星河电子有限公司
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