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111results about How to "Meet Bandwidth Needs" patented technology

Broadband digital cluster business achieving method, appliance and system

The invention provides a time division long term evolution (TD-LTE) broadband digital cluster business application appliance, a system and a method based on an enhanced multimedia broadcast multicast service (eMBMS). The method comprises that a packet data network gateway (PDN-GW) can be used for receiving the cluster business responding and founding cluster loading requests sent by a cluster scheduling management center and the cluster business responding and founding cluster loading requests can be transponded to a gateway, wherein the gateway is used for supporting a cluster business playing specialty. The cluster business responding and founding cluster loading requests are transponded a mobile management entity (MME) by the gateway. After the MME is configured with transmission bearing information, a wireless access bearer establishment can be launched to a base station with the transmission bearing information. After the base station is used for completing the wireless access bearer establishment, cluster business convention can be returned to the cluster scheduling management center to found a response by the MME. The TD-LTE broadband digital cluster business application appliance, the system and the method can be used for regarding a cluster communication as a business to integrate into a public honeycomb mobile system.
Owner:SHANGHAI ZTE SOFTWARE CO LTD

Light transmit-receive integrated module for myriad million light line terminal

The invention discloses a 10 Giga optical link terminal optical transmitter and receiver integrated module, which includes a module optical interface, a module electrical interface and a kilo mega transmitter and receiver integrated optical component, also includes a 10 Giga optical transmitter component, and a 10 Giga transmitter drive circuit for driving the component. The 10 Giga transmitter drive circuit is composed of a signal transformation circuit, a laser drive circuit and a matching circuit, wherein the signal transformation circuit input terminal is connected with the electrical signal to be transmitted, the signal after being transformed by the signal transformation circuit is inputted into the laser drive circuit, the modulated signal, which is outputted from the laser drive circuit and is modulated by the matching circuit, is inputted into the electroabsorption modulator input terminal of the 10 Giga optical transmitter component, for driving 10 Giga optical transmitter component transmitter emitted light signal. The optical receiver and transmitter integrated module has signals with 10Gbps and 1.25Gbps down transmission rate, and signals with 1.25Gbps upward transmission rate, thereby realizing asymmetric transmission of upward signal and down signal for meeting the need of high-speed bandwidth.
Owner:HISENSE BROADBAND MULTIMEDIA TECH

Hardware realization system and method of video display stream compression coding

InactiveCN109618157AProcessing speedPreserve image compression performanceDigital video signal modificationPattern recognitionData stream
The invention discloses a hardware realization system and method of video display stream compression coding. The method comprises: converting an input RGB format of to-be-carried-out compression coding, and using a result as original pixel data for caching; extracting reconstruction values of predicting needed neighboring pixels, and calculating and obtaining pixel prediction values of a current group; carrying out subtraction on the same and original pixel data to obtain pixel quantization residual values of the current group; obtaining reconstruction values of pixels of the current group according to calculation of the pixel quantization residual values of the current group and the pixel prediction values of the current group; carrying out comparison with the original pixel data according to pre-stored historically-used pixel reconstruction values to obtain pixel reconstruction values and pixel index values under a color history index; storing the reconstruction values; respectivelycoding the pixel quantization residual values and the pixel index values to output entropy coding data, reusing the same as a set of data stream, carrying out caching, carrying out splicing accordingto a storage order, and then carrying out output. The method can effectively improve processing speed of image compression, and retains image compression performance of a DSC coder at the same time.
Owner:SOUTHEAST UNIV

Network transmission speed control method and apparatus

The invention discloses a network transmission speed control apparatus. The network transmission speed control apparatus operates in a computing device and is used for controlling the network transmission speed of a network application in the computing device. The network transmission speed control apparatus includes an operating mode detector which is suitable for detecting the current operating mode of the computing device, a transmission speed regulator which is suitable for modifying the number of parallel network links of the network application and/or speed limitation so as to modify the network transmission speed of the network application, and an accelerator which is suitable for indicating the transmission speed regulator to increase the number of the parallel network links and/or enhance the speed limitation and detecting the network transmission speed of the network application when the operating mode detector indicates that the current operating mode of the computing device is not a network application mode, and indicating the transmission speed regulator to continue to increase the number of the parallel network links and/or continue to enhance the speed limitation when the detected network transmission speed is increased and exceeds a predetermined ratio. The invention also discloses a corresponding network transmission speed control method.
Owner:BEIJING QIHOO TECH CO LTD

Method for flow distribution in multichannel access network

The invention relates to a method for flow distribution in a multichannel access network. Multiple channels at least contain an IP (Internet Protocol) channel and a QAM (Quadrature Amplitude Modulation) channel. The method comprises the following steps: carrying out initial flow distribution of a newly-received data flow; comparing a required bandwidth and a residual bandwidth of the IP channel; if the required bandwidth is smaller than the residual bandwidth of the IP channel, distributing the data flow to the IP channel; otherwise distributing the data flow to the QAM channel; and detecting a packet loss rate of the data flow in a transmission process of the data flow, and switching between the transmission channels when the packet loss rate is abnormal, wherein the step specifically comprises a step of switching a flow with the maximum occupied bandwidth on the IP channel to the QAM channel when the packet loss rate of the IP channel is greater than a threshold of the packet loss rate of the IP channel; or switching all data flows borne by a port with the minimum bandwidth in a port set having a greater bandwidth than the excess bandwidth to another frequency point when the packet loss rate of one frequency point on the QAM channel is greater than a threshold of the packet loss rate of the frequency point of the QAM channel.
Owner:INST OF ACOUSTICS CHINESE ACAD OF SCI +1

Passive optical network data collection method based on secondary sampling

ActiveCN105472483AImplement sampling (acquisition)Realize the transmission of data packetsMultiplex system selection arrangementsTime-division multiplexTemporal informationTime delays
The present invention discloses a passive optical network data collection method based on secondary sampling. The method comprises the following steps that: an OLT periodically generates synchronization time information according to a first local clock counter; the OLT carries out ranging on an ONU, obtains a loop time delay and sends the time delay to the ONU; the ONU outputs synchronization sampling pulse according to received time information; the ONU latches the value of a second local clock counter at the rising edge of the synchronization sampling pulse; the sampling values of N periods before the synchronization sampling pulse are obtained through cache; the ONU sends the values to an interpolation module to carry out interpolation operation to obtain a synchronization sampling interpolation result and outputs the interpolation result at the falling edge of the synchronization sampling pulse, the result can be sent to an ONU local processor to carry out processing to realize data synchronous acquisition and transmission, the establishment of a time synchronization relation among multiple passive optical networks is not needed according to the provided method, the independent sampling frequency can be employed by each passive optical network, and stable and reliable synchronization collection data is obtained.
Owner:南京智汇电力技术有限公司
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