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30results about How to "Make full use of bandwidth resources" patented technology

Video conference co-channel multi-source live broadcast method and system

The invention provides a video conference co-channel multi-source live broadcast method and system. The video conference co-channel multi-source live broadcast system comprises a multipoint control device and at least two conference terminals; the multipoint control device establishes a video conference live connection for each conference terminal, receives streaming push capability information from each conference terminal, and sends the received streaming push capability information of each conference terminal to all conference terminals; and each conference terminal determines a conferenceterminal that has the best streaming push capability information in all conference terminals according to the received streaming push capability information of each conference terminal, and the conference terminal with the best streaming push capability information performs live broadcast and streaming push on the audio and video information of the video conference site to a streaming server. Theinvention uses the existing equipment and the own capability of the video conference, and realizes the method for same source multi-channel intelligent autonomous switching of live video conference through each conference terminal; therefore, the investment of other director or external devices is saved, the complexity and operation difficulty of the live broadcast system are reduced, and the invested cost and bandwidth pressure are reduced.
Owner:SHANGHAI AVCON INFORMATION TECH

Intelligent distribution device and method of video bandwidth

The invention discloses an intelligent distribution device and method of video bandwidth. The intelligent distribution device comprises at least one service module, a control module, a PCIe exchange module and a bandwidth distribution module, wherein the bandwidth distribution module is provided with a configuration entry; the PCIe exchange module is provided with a PCIe link switching unit. Simultaneously, the intelligent assembling method of the video bandwidth has the advantages that when congestion occurs, the PCIe exchange module reports congestion information and state information, the control module issues the state information and video data input information to the bandwidth distribution module, the bandwidth distribution module matches the state information and the video data input information to an optimally-matched configuration entry and generates configuration information; the PCIe exchange module adjusts the PCIe link switching unit according to the configuration information and finishes intelligent bandwidth distribution of all ports of the PCIe exchange module. The intelligent distribution device and method disclosed by the invention have the advantages that the intelligent bandwidth distribution of the ports is realized and the bandwidth resources are fully utilized.
Owner:ZHEJIANG UNIVIEW TECH CO LTD

Method for hiding information of speech stream on basis of speech coding by pulse code modulation

The invention discloses a method for hiding information of a speech stream on the basis of speech coding by pulse code modulation, and aims to provide a method for hiding information of a speech stream on the basis of a G.711mu-law. By the method, the hidden information transmission safety is improved, and the channel utilization rate is increased. The technical scheme includes that the method comprises steps of constructing a communication system comprising double speed communication parties; constructing four information transmission channels by available insertion positions of modes with the serial numbers from 0 to 3 in the G.711mu-law; designing an information package format; enabling a transmitting end and a receiving end to transmit and receive the information in parallel; preprocessing the information when the transmitting end is about to transmit the information, inserting the hidden information in the speech stream L, dynamically compensating for the tone quality of the speech stream and upwardly or downwardly adjusting the channels according to smoothness conditions of the channels; and enabling the receiving end to synthesize and restore the received information. The method has the advantages that a dynamic channel adjusting mechanism is constructed, the information transmission safety can be improved, bandwidth resources of the channels are sufficiently utilized, and the quality of speech can be improved.
Owner:NAT UNIV OF DEFENSE TECH

Storage device data integrity protection method, controller thereof and system on chip

The invention discloses a storage device data integrity protection method, a controller thereof and a system on chip, and the method comprises the steps: obtaining a safety memory access main body identifier contained in a memory access request based on the received memory access request; acquiring a memory access main body key corresponding to the security memory access main body identifier as afirst key according to a corresponding relationship between the stored security memory access main body identifier and the memory access main body key; carrying out nonlinear transformation on the first secret key to obtain a secret key related to a memory access address; the method comprises the steps of receiving a request type of a memory access request; and performing corresponding memory access operation on a first storage device, performing hash operation by adopting a preset operation mode on the basis of the second key and data corresponding to the memory access request, generating corresponding message authentication data, and storing the message authentication data for performing data integrity verification when the corresponding data stored in the first storage device is read. According to the scheme, integrity protection can be provided for the data in the first storage device.
Owner:HYGON INFORMATION TECH CO LTD

Load balancing method and device of multilink bound with different bandwidths

The invention relates to the load balancing technology of multilink in the data communication field, and discloses a load balancing method of the multilink bound with different bandwidths. The load balancing method mainly includes the steps of a, initializing interface parameters, b, calculating the bandwidth coefficient mu of each interface, c, inputting a message, d, selecting the interface with the lowest sending flow to be used as a sending interface, e, sending the message, and f, after sending is successfully carried out, calculating the interface flow txBytes according to the size of the message and the bandwidth coefficients mu, and carrying out accumulation. According to the load balancing method, the interface flow is calculated according to the interface coefficients mu, the technical scheme that distribution of the flow is matched with the interface bandwidths, namely the distribution of the flow is bound with the interfaces which can be matched with the same interface bandwidth and different interface bandwidths is adopted, the bandwidth resources of each bound interface can be sufficiently used, and the load balancing method is simple in algorithm, high in transmission performance and particularly suitable for flow distribution of MPPP bound interfaces.
Owner:MAIPU COMM TECH CO LTD

Method for protecting data service in metropolitan area transmission network

Present invention discloses a method for protecting data service in metropolitan area network (MAN), said metropolitan area network (MAN) has created channel between source node and destination node. Said method contains determining protected destination node outside the work node, setting protective channel between source node and destination node, said source node detecting work channel and protection channel transmission link and node failure state and reporting source node in failure, said source node switching data service in work channel to protective channel in detecting node failure and receiving failure report.
Owner:HUAWEI TECH CO LTD

Parameter allocation method and device for Internet of Things application and storage medium

The invention discloses a parameter distribution method and device for an Internet of Things application and a storage medium. The method comprises the following steps: receiving a downlink communication frequency automatically allocated by a cloud platform according to a near non-allocation similar frequency criterion; under the condition that a network access request sent by a second communication node is received, acquiring a communication key corresponding to the second communication node from the cloud platform according to the first communication protocol; under the condition that the communication key is legal, sending a network access success message and the communication key to the second communication node according to the downlink communication frequency; and dynamically allocating the communication parameters to the second communication node according to a preset allocation criterion. According to the embodiment of the invention, the communication parameters of the second communication node are dynamically allocated through cooperation among the first communication node, the second communication node and the cloud platform, so that the second communication node can be allocated to the optimal uplink communication frequency and uplink communication rate, bandwidth resources are fully utilized, and the communication efficiency is ensured.
Owner:上海顺舟智能科技股份有限公司

Memory access control method and system and storage device controller

The invention discloses a memory access control method and system and a storage device controller. The memory access control method comprises the steps: obtaining a to-be-written effective data blockand a storage address of the effective data block based on a received data writing request; for the valid data block to be written, generating corresponding message authentication data, generating astorage address of the message authentication data in the first storage device, and caching the message authentication data and the storage address of the message authentication data in the first storage device to the second storage device; writing the valid data block into the first storage device based on the storage address of the valid data block; and in response to a preset triggering condition, stopping the memory access request within a preset duration, and writing the message authentication data cached in the second storage device into the first storage device according to a storage address stored in the second storage device within the preset duration. According to the scheme, data integrity verification can be carried out on the valid data in the storage device at a relatively low storage cost.
Owner:HYGON INFORMATION TECH CO LTD

A video bandwidth intelligent allocation device and method

The invention discloses an intelligent distribution device and method of video bandwidth. The intelligent distribution device comprises at least one service module, a control module, a PCIe exchange module and a bandwidth distribution module, wherein the bandwidth distribution module is provided with a configuration entry; the PCIe exchange module is provided with a PCIe link switching unit. Simultaneously, the intelligent assembling method of the video bandwidth has the advantages that when congestion occurs, the PCIe exchange module reports congestion information and state information, the control module issues the state information and video data input information to the bandwidth distribution module, the bandwidth distribution module matches the state information and the video data input information to an optimally-matched configuration entry and generates configuration information; the PCIe exchange module adjusts the PCIe link switching unit according to the configuration information and finishes intelligent bandwidth distribution of all ports of the PCIe exchange module. The intelligent distribution device and method disclosed by the invention have the advantages that the intelligent bandwidth distribution of the ports is realized and the bandwidth resources are fully utilized.
Owner:ZHEJIANG UNIVIEW TECH CO LTD

Method for hiding information of speech stream on basis of speech coding by pulse code modulation

The invention discloses a method for hiding information of a speech stream on the basis of speech coding by pulse code modulation, and aims to provide a method for hiding information of a speech stream on the basis of a G.711mu-law. By the method, the hidden information transmission safety is improved, and the channel utilization rate is increased. The technical scheme includes that the method comprises steps of constructing a communication system comprising double speed communication parties; constructing four information transmission channels by available insertion positions of modes with the serial numbers from 0 to 3 in the G.711mu-law; designing an information package format; enabling a transmitting end and a receiving end to transmit and receive the information in parallel; preprocessing the information when the transmitting end is about to transmit the information, inserting the hidden information in the speech stream L, dynamically compensating for the tone quality of the speech stream and upwardly or downwardly adjusting the channels according to smoothness conditions of the channels; and enabling the receiving end to synthesize and restore the received information. The method has the advantages that a dynamic channel adjusting mechanism is constructed, the information transmission safety can be improved, bandwidth resources of the channels are sufficiently utilized, and the quality of speech can be improved.
Owner:NAT UNIV OF DEFENSE TECH

A parameter allocation method, device and storage medium for an Internet of Things application

The invention discloses a parameter distribution method, device and storage medium for Internet of Things applications. The method includes: receiving the downlink communication frequency automatically allocated by the cloud platform according to the criterion of not allocating similar frequencies in proximity; when receiving the network access request sent by the second communication node, obtaining the corresponding frequency of the second communication node from the cloud platform according to the first communication protocol. the communication key; if the communication key is valid, send the network access success message and the communication key to the second communication node according to the downlink communication frequency; and dynamically allocate communication parameters to the second communication node according to the preset allocation criteria. In the embodiment of the present invention, through the cooperation between the first communication node, the second communication node and the cloud platform, the communication parameters of the second communication node are dynamically allocated, so that the second communication node can be allocated the best uplink communication frequency and The uplink communication rate makes full use of bandwidth resources and ensures communication efficiency.
Owner:上海顺舟智能科技股份有限公司

Downlink data stream session bandwidth limiting method, network element, equipment and medium

The invention provides a downlink data stream session bandwidth limiting method, an intermediate user plane function network element, a session management function network element, terminal equipment and a computer readable storage medium. An intermediate user plane function network element is arranged between a session anchor point user plane function network element and a branch point user plane function network element of each protocol data unit. The method comprises the following steps that: an intermediate user plane function network element acquires a data stream which is sent by each protocol data unit session anchor point user plane function network element and exceeds the own downlink bandwidth limit of the intermediate user plane function network element; and the intermediate user plane function network element judges whether a first instruction of the session management function network element is received or not: if yes, forwarding the data stream exceeding the own downlink bandwidth limit to the branch point user plane function network element. According to the embodiment of the invention, on the basis that signaling interaction between PSA UPF and BP or UL CL UPF is not needed, packet loss of downlink flow is not generated on a classifier or a branch point, and meanwhile, limited bandwidth resources are limited by fully utilizing session bandwidth.
Owner:CHINA UNITED NETWORK COMM GRP CO LTD
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