Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
31results about How to "Troubleshoot reception issues" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Sending method and base station of downlink control information
InactiveCN103220795ATroubleshoot reception issuesMake up for coverage issuesSpatial transmit diversityWireless communicationControl channelUser equipment
The invention provides a sending method of downlink control information. A base station transmits public information or user proprietary information to user equipment through a physical downlink shared channel (PDSCH), indication is conducted through the downlink control information (DCI) which is carried by a control channel, and the bandwidth which is occupied by the PDSCH is smaller than a system bandwidth. The invention further provides the base station.
Owner:ZTE CORP
Sending method and detecting method of downlink control information, base station and user equipment
InactiveCN103220691ATroubleshoot reception issuesMake up for coverage issuesSpatial transmit diversityWireless communicationUser equipment
The invention provides a sending method of downlink control information. The sending method includes the steps of directly transmitting public information to user equipment by a base station through a physical downlink shared channel (PDSCH) through the adoption of a sending diversity transmission mode. The invention further provides a detecting method of the downlink control information. The detecting method includes the steps of detecting the PDSCH which carries the public information through the user equipment in a blind mode, and obtaining the public information. The invention further provides user equipment and a base station. According to the sending method and the detecting method of the downlink control information, the base station and the user equipment, control information expenses are saved.
Owner:ZTE CORP
Method and device for transmitting information on enhanced physical downlink control channel
ActiveCN103391151AResolve transmissionTroubleshoot reception issuesSignal allocationMulti-frequency code systemsCarrier signalControl channel
The present invention provides a method and a device for transmitting information on an enhanced physical downlink control channel (E-PDCCH). The sending method comprises: obtaining, according to a first aggregation level of a first candidate E-PDCCH, a first eCCE or CCE resource mapped by the first candidate E-PDCCH in a first PRB resource, in the first aggregation level, eCCE or CCE resources mapped by candidate E-PDCCHs in the first PRB resource being different, and the first PRB resource being formed of a PRB multiplexed by a candidate E-PDCCH and a PDSCH in each aggregation level of each sub-frame; determining a first DMRS port corresponding to a reference signal corresponding to the first candidate E-PDCCH; and respectively sending the reference signal corresponding to the first candidate E-PDCCH and a data part on a sub-carrier corresponding to the first DMRS port and the first eCCE or CCE resource. Technical solutions of the present invention solve an E-PDCCH transmission problem.
Owner:HUAWEI DEVICE CO LTD
Bluetooth positioning system, Bluetooth positioning method and Bluetooth antenna array thereof
ActiveCN107505594ATroubleshoot reception issuesSolving very computationally difficult problemsPosition fixationWireless commuication servicesMultilaterationLocator Parameter
The invention provides a Bluetooth antenna array in a Bluetooth antenna device, wherein the Bluetooth antenna array has more than four Bluetooth antennas linearly arranged at an equal distance, and the distance between two adjacent Bluetooth antenna single feed points is not larger than a Bluetooth wavelength. The present invention also proposes a set of Bluetooth positioning system which includes a Bluetooth transmitting module and a Bluetooth receiving module. After receiving a Bluetooth signal, the Bluetooth antenna array of the Bluetooth receiving module measures and calculates the position parameter of the Bluetooth signal when it reaches the Bluetooth antenna signal feed point, the position parameter includes at least the incident angle and the phase of an incident Bluetooth signal, and then the relative position of the Bluetooth device is obtained through the trigonometric function algorithm to complete the positioning. The positioning method of the present invention uses the transmission time of the Bluetooth packet data set obtained by the internal processor chip to generate the arrival time difference of package data sets of different antennas according to microwave path difference of different antennas, and converts the time difference into calculation of the phase difference and arrival angles of sine waves, so as to complete measurement and positioning.
Owner:深圳市昇润科技有限公司
Photon lantern type degenerate module multiplexer/demultiplexer and transmission method
ActiveCN111239910AImprove mode selectivityTroubleshoot reception issuesOptical mode multiplex systemsCoupling light guidesFiberAxis of symmetry
The invention discloses a photon lantern type degenerate module multiplexer / demultiplexer and a transmission method. The multiplexer / demultiplexer structure comprises a plurality of fiber cores, wherein the fiber cores for transmitting different LP modes are different in thickness, and degenerate modes in the same mode group adopt the same fiber core; the fiber core arrangement cross section is axisymmetric, the fiber cores in the excitation circular symmetry mode are arranged on the symmetry axis, and the fiber cores in the excitation non-circular symmetry mode are symmetrically arranged on the two sides of the axis; the fiber cores are arranged in concentric rings, and the fiber cores in the excitation LPpq mode are located on a q-th ring from outside to inside, and the fiber cores on the two sides of each ring are sequentially arranged in a thinning mode from the fiber core located on the symmetry axis; and one end of the arranged fiber core forms a conical coupling region of a multiplexer / demultiplexer through fused biconical taper. According to the invention, the degenerate mode group receiving problem is solved, and the degenerate mode group receiving method has the advantages of wide working bandwidth and low crosstalk.
Owner:PEKING UNIV +1
Multiplexing method for broadcast multicast service data and de-multiplexing method
ActiveCN101005338AFix performance issuesSolve efficiency problemsPower managementWireless network protocolsMultiplexingControl layer
The method includes steps: network side transfers each broadcast / multicast traffic (BMT) data after processed by medium access control layer to physical layer; based on multiplexing control information, physical layer executes multiplexing process for each BMT data. The invention also discloses method for demultiplexing BMT data. The demultiplexing method includes steps: after demodulation at physical layer, UE obtains multiplexing control information (MCI) in use for multiplexing processing BMT data down sent from network side; based on MCI, physical layer only carries out demultiplexing and demodulating processes for relevant BMT data in broadcast / multicast multiplexing traffic data down sent from network side. The invention reduces power consumption needed by UE to demodulate multiplexing data, and guarantees that all UE with different transmission bandwidth can receive needed BMT, and gets better balance between performance of BMT and use ratio of wireless resources.
Owner:HUAWEI TECH CO LTD
Multipath utilization-based beam forming method
ActiveCN109407055AThe target search range is accurateNarrow searchWave based measurement systemsDecompositionRadar
The invention discloses a multipath utilization-based beam forming method. With the method adopted, the problem that multipath coherent signals cannot be effectively received in a low-altitude multipath environment in the prior art can be solved. The implementation process of the method includes the following steps that: an array radar acquires echo signal data, and solves a received signal covariance matrix Rxx; Toeplitz covariance matrix reconstruction is performed on the received signal covariance matrix, so that a new covariance matrix R is obtained; eigenvalue decomposition is performed on the reconstructed variance matrix, so that a noise subspace EN is obtained; a spatial spectral function S(theta) is formed according to the noise subspace; an angle corresponding to the peak value point of a spectral peak is found according to the spatial spectral function, namely the angle of a target is estimated; and with the estimated target angle adopted as a beam direction, beamforming isperformed. According to the method of the invention, with the estimated target angle adopted as the beam direction, beamforming is performed, and therefore, the multipath coherent information can be effectively utilized to improve the signal multi-noise ratio of echo signals. The method can be used for the effective reception of multipath coherent signals in a low-altitude multipath environment.
Owner:XIDIAN UNIV
Bluetooth locating method
ActiveCN107741580ATroubleshoot reception issuesSolve the problem that the calculation of time difference is very difficultPosition fixationComputer moduleBluetooth
The invention relates to Bluetooth locating method. The Bluetooth locating method is utilized in a Bluetooth locating system. The Bluetooth locating system comprises at least one Bluetooth transmitting module and at least one Bluetooth receiving module, the Bluetooth receiving module comprises a Bluetooth antenna device and a signal analysis module, the Bluetooth antenna device comprises a receiving end circuit board and a Bluetooth antenna array arranged on the receiving end circuit board, the Bluetooth antenna array comprises four antennas, all the antennas are electrically connected into the receiving end circuit board through a signal feeding point, and the four signal feeding points are arranged in a straight line, so that locating the Bluetooth transmitting module is completed through the Bluetooth locating calculation method. By means of the Bluetooth locating method of calculation of a large amount of data, a normal distribution method in statistics is applied.
Owner:深圳市昇润科技有限公司
Camera shooting module and control method for the camera shooting module
InactiveCN109270766ASimple and lightweight structureAvoid interferenceTelevision system detailsColor television detailsLight beamEngineering
The invention discloses a camera shooting module and a control method for the camera shooting module. The camera shooting module comprises a first imaging assembly, a second imaging assembly and a sensor assembly. The first imaging assembly comprises a first diaphragm. The second imaging assembly includes a second diaphragm. The sensor assembly is located on the exit optical path of the first diaphragm and the sensor assembly is located on the exit optical path of the second diaphragm. When the camera shooting module is operated, the first diaphragm and the second diaphragm are alternately opened such that the sensor assembly alternately receives the first imaging beam generated by the first imaging assembly and the second imaging beam generated by the second imaging assembly. The technical scheme of the invention provides camera shooting module with simple and light structure and low cost.
Owner:GOERTEK OPTICAL TECH CO LTD
Method and equipment for transmitting information on enhanced physical downlink control channel
ActiveCN106059738AResolve transmissionTroubleshoot reception issuesSignal allocationPilot signal allocationCarrier signalControl channel
The invention provides a method and equipment for transmitting information on an enhanced physical downlink control channel. The sending method comprises the following steps that: according to a first aggregation grade, which first alternative E-PDCCHs belong to, first eCCE or CCE resources mapped by the first alternative E-PDCCHs in a first PRB resource are obtained; the eCCE or CCE resources mapped by various alternative E-PDCCHs in the first aggregation grade in the first PRB resource are different from each other; the first PRB resource is composed of PRBs multiplexed by the alternative E-PDCCHs and PDSCHs in various aggregation grades in various sub-frames; a first DMRS port corresponding to a reference signal corresponding to the first alternative E-PDCCHs is determined; and a reference signal and a data part corresponding to the first alternative E-PDCCHs are sent on sub-carriers and the first eCCE or CCE resources corresponding to the first DMRS port respectively. By means of the technical scheme provided in the invention, the E-PDCCH transmission problem is solved.
Owner:HUAWEI DEVICE CO LTD
Ka frequency band broadband receiving circuit
InactiveCN110176936ATroubleshoot reception issuesReduce manufacturing costTransmissionCommunications systemIntermediate frequency
The invention discloses a Ka frequency band broadband receiving circuit which comprises a radio frequency amplifying circuit, a radio frequency filtering circuit, a frequency mixing circuit I, a localoscillator circuit I, an intermediate frequency filtering circuit I, an intermediate frequency amplifying circuit I, a frequency mixing circuit II, a local oscillator circuit II, an intermediate frequency switch filtering circuit II and an intermediate frequency amplifying circuit II. The radio frequency amplification circuit is sequentially connected with the radio frequency filter circuit, thefrequency mixing circuit I, the local oscillator circuit I, the intermediate frequency filtering circuit I, the frequency mixing circuit II, the local oscillator circuit II, the intermediate frequencyswitch filtering circuit II and the intermediate frequency amplifying circuit II in series. The frequency mixing circuit I is also connected with the local oscillator circuit I, and the frequency mixing circuit II is also connected with the local oscillator circuit II; wherein a chip used by each circuit is a chip-level device and is assembled by adopting a micro-assembly process. The chip-leveldevice is produced and assembled through the micro-assembly process, the size, the weight and the production cost are effectively reduced, the production efficiency is improved, and therefore the chip-level device can be widely applied to a communication system, a navigation system, a radar, a space electronic technology and other systems.
Owner:36TH RES INST OF CETC
Mobile television signal subway tunnel covering system based on leakage cable
InactiveCN101247517ADoes not affect call qualityAvoid layingOptical transmission adaptationsFibre transmissionTime informationCovering system
A mobile television underground tunnel covering system basing on the leaky cable comprises the following components: a low noise amplifier which is used for amplifying the signal source to the operational level necessary to an light transmitter; the light transmitter which is used for conveying the radio frequency signal outputted by the low noise amplifier; and a first optical coupler which is provided with at least one input end and a plurality of output ends and is used for distributing the optical power outputted by the light transmitter to a plurality of optical powers, and wherein the number of the output end can be set according to the actual need of the platform. A plurality of light receivers which are connected to the output ends of the first optical coupler through the optical fiber are used for conveying the light signal to the radio frequency signal. The leakage cable which is connected to the light receiver is used for transmitting the radio frequency signal. The invention settles the problem of interference between the signals with different frequencies. The transmission mode of combining the digital television direct-broadcasting station with the leaky cable is adopted and the cost for building the system is greatly reduced. The invention settles the problem of viewing mobile television in the underground and satisfies the requirement for the real-time information by the rail passenger.
Owner:上海东方明珠传输有限公司
Watch having metal case
ActiveCN108762057AReduce the impactSave spaceAntenna supports/mountingsClockwork casesEngineeringSignal lines
The invention discloses a watch with a metal case. A bezel and the case are made of metal, and the bezel made of metal is used as an antenna radiator; a movement comprises a circuit board, and the circuit board is laterally fixed in the case body; the watch further includes a non-metallic bracket for supporting the bezel and separating the bezel from the case, and the non-metallic bracket is a ring-shaped bracket; the watch further includes first metal conductors, second metal conductors, and third metal conductors; the bezel and antenna signal lines of the circuit board are in potential connection through the first metal conductors; the bezel and the case are in potential short-circuit connection through the second metal conductors; and the case and the circuit board are signally in potential short-circuit connection through the third metal conductors. The invention utilizes the bezel as the antenna, can effectively solve the problem of antenna receiving of the metal watch, greatly reduces the influence of the metal case on the performance of the antenna, and greatly reduces the space occupied by the antenna inside the watch, has a simple structure, is easy to mount and demount, and is stable in structure and long in life.
Owner:CHENGDUSCEON ELECTRONICS
Multipath using coherent beam forming method based on oblique projection
ActiveCN109901131AImprove signal-to-noise ratioEfficient receptionWave based measurement systemsICT adaptationSignal-to-noise ratio (imaging)Reflected waves
The invention discloses a multipath using coherent beam forming method based on oblique projection. In the prior art, multipath coherent signals can not be effectively received in a multipath environment. In the invention, the above problem is solved. The method is characterized by according to echo data, acquiring orthogonal projection matrixes of a direct wave guide vector and a reflected wave guide vector; obtaining a corresponding oblique projection operator according to the orthogonal projection matrixes of the direct wave guide vector and the reflected wave guide vector; calculating direct wave and reflected wave signals after the oblique projection according to the two obtained oblique projection operators; and carrying out beam forming on the direct wave and reflected wave signalsafter the oblique projection and combining results to obtain a total output signal. Because an echo signal is obliquely projected to the directions of the direct wave and the reflected wave, and beamforming results of the direct wave signal and the reflected wave signal are combined, multipath information is effectively utilized, and the signal to noise ratio of the echo signal is improved. And the method can be used for efficient reception of the multipath coherent signals in the multipath environment.
Owner:XIDIAN UNIV
Adaptive coherent beamforming method based on multipath information
ActiveCN109633563AEfficient receptionImprove signal-to-noise ratioWave based measurement systemsHigh level techniquesSignal subspaceCoherent information
The invention discloses an adaptive coherent beamforming method based on multipath information, which mainly solves the problem that multipath coherent signals can not be effectively received in a low-altitude multipath environment in the prior art. The method comprises steps: 1, in a narrow-band multipath environment, a radar generates transmitting signals, and array radar echo data are obtained;2, according to the echo data, an array covariance matrix is calculated; 3, the array covariance matrix is subjected to characteristic decomposition to obtain signal subspace and noise subspace; 4, based on the orthogonality of the signal subspace and the noise subspace, a multipath reflection coefficient is estimated; 5, the multipath reflection coefficient is compensated to obtain the optimal weighting vector; and 6, according to the optimal weighting vector, adaptive beamforming is obtained. In the method, adaptive beamforming is carried out through compensating the reflection coefficientto obtain the optimal weighting vector, multipath coherent information is used effectively, the signal-to-noise ratio of the echo signals is improved, and the method can be used to effectively receivethe multipath coherent signals in a multipath environment.
Owner:XIDIAN UNIV
Method and device for transmitting information on enhanced physical downlink control channel
ActiveCN103391151BResolve transmissionTroubleshoot reception issuesSignal allocationMulti-frequency code systemsCarrier signalControl channel
Owner:HUAWEI DEVICE CO LTD
A high-speed latch capable of receiving millivolt signals
ActiveCN105391426AReduce power consumptionSimple circuit structureElectric pulse generatorCharge and dischargeSampling circuits
The invention discloses a high-speed latch capable of receiving millivolt signals. The latch comprises a reference current source used for providing a reference current for the latch; a sampling amplification circuit for carrying out sampling amplification on input signals; a latch circuit for carrying out latch on sampling point data of the sampling amplification circuit; and a current amplification circuit for carrying out amplification on charging and discharging current of the sampling circuit when the latch is switched from a latch state to a sampling state. The sampling amplification circuit is connected with the current amplification circuit; and the current amplification circuit is connected with the latch circuit. The current amplification circuit comprises an emitter follower, wherein current gain of the emitter follower is beta; and when the latch is switched from the latch state to the sampling state, the charging and discharging current of the sampling circuit has enough current to charge / discharge an output node after being amplified for beta times by the current amplification circuit. The high-speed latch solves the problem of reception of the millivolt high-speed signals of the latch, reduces a comparator structure of a conventional EOM circuit, reduces power consumption and simplifies circuit structure.
Owner:CHENGDU CORPRO TECH CO LTD
An information accessibility system and method based on augmented reality technology
ActiveCN112002186BTroubleshoot reception issuesSolve the disadvantages of poor interactivityNatural language translationInput/output for user-computer interactionRelevant informationEngineering
The invention discloses an information barrier-free system and method based on augmented reality technology. The system includes a computing processing terminal and an information barrier-free terminal connected to the computing processing terminal; the computing processing terminal collects user demand data, processes The completed HUD information is sent to the information barrier-free terminal, and the information barrier-free terminal superimposes and displays the HUD information and the user's real environment based on augmented reality technology. The invention empowers information barrier-free terminals through augmented reality technology, solves the problem of poor user experience, and enables users to receive information in an immersive manner, so that users can see relevant information without bowing their heads, thereby improving the user's own safety factor.
Owner:YUHUI TECH (NANJING) CO LTD
A Ku-band high-sensitivity receiving circuit
ActiveCN107171681BSmall structure sizeReduce power consumptionTransmissionMicrowaveCommunications system
The invention discloses a Ku-band high-sensitivity receiving circuit which comprises a radio frequency amplification circuit, an radio frequency filter circuit, a first mixing circuit, a first local oscillation circuit, a first intermediate frequency filter circuit, a first intermediate frequency amplification circuit, a second mixing circuit, a second local oscillation circuit, a second intermediate frequency switch filter circuit and a second intermediate frequency amplification circuit. The radio frequency amplification circuit is successively connected in series with the radio frequency filter circuit, the first mixing circuit, the first intermediate frequency filter circuit, the first intermediate frequency amplification circuit, the second mixing circuit, the second intermediate frequency switch filter circuit and the second intermediate frequency amplification circuit. The first mixing circuit is connected with first local oscillation circuit. The second mixing circuit is connected with the second mixing circuit. According to the invention, the structural size of the circuit is greatly reduced; the power consumption of the circuit is reduced; the weight of the circuit is reduced; and the circuit has the advantages of stable performance and high index consistency, and is widely applicable to a communication system, a navigation system, a radar and the microwave communication system of a space electronic technology.
Owner:36TH RES INST OF CETC
Real-time Blind Demodulation Method for Short-time Burst Signals with Large Frequency Shift
ActiveCN105743612BHigh-precision detectionSolving real-time detection problemsModulation type identificationReceiver specific arrangementsDigital signal processingFrequency spectrum
The invention provides a method for real-time blind demodulation of a large-frequency-shift short-time burst signal, and aims to provide a method which can increase a correct detection probability of the burst signal and effectively eliminate frequency offset influences of different target signals. According to the technical scheme, the method comprises the following steps: partitioning obtained baseband signals into two paths through a signal processor, detecting one path of baseband signals through a frequency domain amplitude of a digital signal processor (DSP) module, performing fixed-point FFT (Fast Fourier Transform) on the baseband signals, performing accumulated smoothing on a plurality of FFT results, and then performing bandwidth measurement according to accumulated frequency spectrums; and making the other path of baseband signals pass through the DSP module, performing carrier frequency rough measurement through a pilot signal, performing down conversion on the baseband signals once again according to a rough measurement carrier frequency, calculating an accurate measured value of the carrier frequency, setting parameters of a demodulator in an FPGA (Field Programmable Gate Array) according to a modulation type and a symbol rate by the signal processor, guiding the demodulator in the FPGA to perform coherent demodulation in conjunction with a modulation type recognition result and a symbol rate estimation value, and outputting a demodulation result.
Owner:10TH RES INST OF CETC
Multiplexing method for broadcast multicast service data and de-multiplexing method
ActiveCN101005338BReduce power consumptionTroubleshoot reception issuesPower managementWireless network protocolsMultiplexingControl layer
The method includes steps: network side transfers each broadcast / multicast traffic (BMT) data after processed by medium access control layer to physical layer; based on multiplexing control information, physical layer executes multiplexing process for each BMT data. The invention also discloses method for demultiplexing BMT data. The demultiplexing method includes steps: after demodulation at physical layer, UE obtains multiplexing control information (MCI) in use for multiplexing processing BMT data down sent from network side; based on MCI, physical layer only carries out demultiplexing anddemodulating processes for relevant BMT data in broadcast / multicast multiplexing traffic data down sent from network side. The invention reduces power consumption needed by UE to demodulate multiplexing data, and guarantees that all UE with different transmission bandwidth can receive needed BMT, and gets better balance between performance of BMT and use ratio of wireless resources.
Owner:HUAWEI TECH CO LTD
A photonic lantern type degenerate module multiplexer/demultiplexer and transmission method
ActiveCN111239910BImprove mode selectivityTroubleshoot reception issuesOptical mode multiplex systemsCoupling light guidesFiberAxis of symmetry
The invention discloses a photonic lantern type degenerate module multiplexing / demultiplexing device and a transmission method. The multiplexing / demultiplexing device structure of the present invention includes a plurality of fiber cores, wherein the thickness of the fiber cores transmitting different LP modes is different, and the degenerate modes in the same mode group adopt the same fiber core; the cross-section of the fiber core arrangement is axisymmetric, and the excited The core of the circular symmetric mode is on the symmetry axis, and the cores of the non-circular symmetric mode are symmetrically arranged on both sides of the axis; the cores are arranged in concentric rings to excite the LP pq The fiber core of the mode is located on the qth ring from the outside to the inside, and the fiber cores on both sides of each ring start from the fiber core on the axis of symmetry and are arranged in a progressively thinner manner; after the arrangement, one end of the fiber core is melted The tapering forms the tapered coupling region of the mux / demux. The invention solves the problem of degenerate mode group reception and has the advantages of wide working bandwidth and low crosstalk.
Owner:PEKING UNIV +1
Workflow scheduling execution unit control method and controller
ActiveCN112783123AImplement high-speed routingTroubleshoot reception issuesTotal factory controlProgramme total factory controlExecution unitWorkflow scheduling
The invention relates to a workflow scheduling execution unit control method and a controller. According to the invention, the workflow can be received at a high speed by adopting the fast access system, the workflow is cached by the internal multi-producer single-consumer model queue, and the workflow is sent to the workflow scheduling execution unit by the workflow scheduling execution unit distributor according to the workflow scheduling execution unit preselection table. The fast access system is not responsible for constructing and maintaining a preselection table, and can realize high-speed routing of the workflow. The accuracy of workflow routing to the workflow scheduling execution unit is guaranteed by a workflow scheduling execution unit preselection table, and the workflow scheduling execution unit preselection table is constructed and maintained by modules in the slow path system according to the current state (the scale, the capacity and the pressure of the workflow scheduling execution unit) of the system. Therefore, the receiving problem of high-concurrency and high-flow-rate workflow, the management problem of a super-large-scale distributed workflow scheduling execution unit and the high-speed and accurate routing problem of large-scale workflow can be solved.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
A watch with a metal case
ActiveCN108762057BImprove textureTroubleshoot reception issuesAntenna supports/mountingsClockwork casesEngineeringMechanical engineering
Owner:CHENGDUSCEON ELECTRONICS
Adaptive coherent beam formation method of multi-path utilization
ActiveCN109901132ASolve multipath coherent signal receptionWide range of applicationsWave based measurement systemsSignal-to-noise ratio (imaging)Decomposition
The invention discloses an adaptive coherent beam formation method of multi-path utilization. In the prior art, multipath coherent signals can not be effectively received in a low-altitude multipath environment. By using the method of the invention, the above problem is solved. The method is characterized by 1, in a narrow-band multipath environment, generating an emission signal by a radar and obtaining array radar echo data; 2, calculating an array covariance matrix based on the echo data; 3, carrying out characteristic decomposition on the array covariance matrix to obtain a signal subspaceand a noise subspace; 4, estimating a multipath reflection coefficient according to orthogonality between the signal subspace and the noise subspace; 5, constraining the multipath reflection coefficient to obtain an optimal weighted vector; and 6, according to the optimal weighted vector, acquiring adaptive beam formation. In the invention, through constraining the reflection coefficient, the optimal weighted vector is acquired and adaptive beam formation is performed, multipath coherent information is effectively used, a signal-to-noise ratio of the echo signal is increased, and the method can be used for effective reception of the multipath coherent signals in the multipath environment.
Owner:XIDIAN UNIV
A workflow scheduling execution unit control method and controller
ActiveCN112783123BImplement high-speed routingTroubleshoot reception issuesTotal factory controlProgramme total factory controlFast pathExecution unit
The invention relates to a control method and a controller for a workflow scheduling execution unit. The present invention can receive the workflow at high speed by adopting the fast path system, cache it in the internal multi-producer single-consumer model queue, and send it to the workflow scheduling execution unit by the workflow scheduling execution unit distributor according to the workflow scheduling execution unit preselection table workflow. The fast-track system is not responsible for building and maintaining pre-selection tables, and it enables high-speed routing of workflows. The accuracy of the workflow routing to the workflow scheduling execution unit is guaranteed by the workflow scheduling execution unit preselection table, and the workflow scheduling execution unit preselection table is determined by each module in the slow path system according to the current state of the system (workflow scheduling execution unit size, capacity and Pressure) to build and maintain, and then can solve the problem of receiving high-concurrency and high-speed workflows, the management of ultra-large-scale distributed workflow scheduling execution units, and the high-speed and precise routing of large-scale workflows.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
High-speed latch capable of receiving millivolt-level signals
ActiveCN105391426BTroubleshoot reception issuesSimple structureElectric pulse generatorReference currentComparator
The invention discloses a high-speed latch capable of receiving millivolt signals. The latch comprises a reference current source used for providing a reference current for the latch; a sampling amplification circuit for carrying out sampling amplification on input signals; a latch circuit for carrying out latch on sampling point data of the sampling amplification circuit; and a current amplification circuit for carrying out amplification on charging and discharging current of the sampling circuit when the latch is switched from a latch state to a sampling state. The sampling amplification circuit is connected with the current amplification circuit; and the current amplification circuit is connected with the latch circuit. The current amplification circuit comprises an emitter follower, wherein current gain of the emitter follower is beta; and when the latch is switched from the latch state to the sampling state, the charging and discharging current of the sampling circuit has enough current to charge / discharge an output node after being amplified for beta times by the current amplification circuit. The high-speed latch solves the problem of reception of the millivolt high-speed signals of the latch, reduces a comparator structure of a conventional EOM circuit, reduces power consumption and simplifies circuit structure.
Owner:CHENGDU CORPRO TECH CO LTD
A bluetooth positioning method
ActiveCN107741580BTroubleshoot reception issuesSolve the problem that the calculation of time difference is very difficultPosition fixationComputer hardwareBluetooth
The invention relates to Bluetooth locating method. The Bluetooth locating method is utilized in a Bluetooth locating system. The Bluetooth locating system comprises at least one Bluetooth transmitting module and at least one Bluetooth receiving module, the Bluetooth receiving module comprises a Bluetooth antenna device and a signal analysis module, the Bluetooth antenna device comprises a receiving end circuit board and a Bluetooth antenna array arranged on the receiving end circuit board, the Bluetooth antenna array comprises four antennas, all the antennas are electrically connected into the receiving end circuit board through a signal feeding point, and the four signal feeding points are arranged in a straight line, so that locating the Bluetooth transmitting module is completed through the Bluetooth locating calculation method. By means of the Bluetooth locating method of calculation of a large amount of data, a normal distribution method in statistics is applied.
Owner:深圳市昇润科技有限公司
Resonant cavity for accumulative receiving of sine wave signals, and working method thereof
ActiveCN111525223AIncreaseTroubleshoot reception issuesAntenna adaptation in movable bodiesResonatorsResonant cavityTime domain
The invention discloses a resonant cavity for accumulative receiving of sine wave signals, and a working method of the resonant cavity. According to the resonant cavity, a coaxial inner core is arranged in the inner cavity of a cylindrical metal shell and connected with the center of the end face of one end of the cylindrical metal shell; at least two L-shaped feeding parts are symmetrically arranged in the inner cavity of the cylindrical metal shell relative to the coaxial inner core; one end of each L-shaped feeding part is connected with the tail end of the coaxial inner core, and the otherend of each L-shaped feeding part penetrates through the end face, connected with the coaxial inner core, of the cylindrical metal shell; dipole antennas are arranged at feed through holes outside the cylindrical metal shell; one arm of each dipole antenna is connected with the tail end of the L-shaped feed part, and the other arm of each dipole antenna is connected with a metal short-circuit end; and an output probe is coaxially installed in an output signal through hole in the cylindrical metal shell, one end of the output probe is vertically provided with a disc structure, and the other end of the output probe is connected with a switching device. The receiving problem of radar weak signals can be solved from the time domain.
Owner:XI AN JIAOTONG UNIV +2
A resonant cavity for cumulative reception of sine wave signals and its working method
ActiveCN111525223BAvoid loweringTroubleshoot reception issuesAntenna adaptation in movable bodiesResonatorsResonant cavityTime domain
The invention discloses a resonant cavity used for accumulating and receiving sine wave signals and its working method. The coaxial inner core is arranged in the inner cavity of a cylindrical metal shell and connected to the center of the end face of one end of the cylindrical metal shell. The inner core of the cylindrical metal shell At least two L-shaped feeding parts are symmetrically arranged in the cavity with respect to the coaxial inner core, one end of the L-shaped feeding part is connected to the end of the coaxial inner core, and the other end of the L-shaped feeding part runs through the cylindrical metal shell and connects with the The end face of the coaxial inner core connection; the outside of the cylindrical metal shell is provided with a dipole antenna at the feed through hole, one arm of the dipole antenna is connected to the end of the L-shaped feed part, and the other end of the dipole antenna One arm is connected to the metal short-circuit end; the output probe is coaxially installed in the output signal through hole on the cylindrical metal shell, and one end of the output probe is vertically installed with a disc structure, and the other end is connected to a switching device. The invention can solve the problem of receiving weak radar signals from the time domain.
Owner:XI AN JIAOTONG UNIV +2
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com