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Communication system, method, and program

A communication system and audio signal technology, applied in the field of communication systems, can solve problems such as delays in updating unpublished images, and achieve the effect of suppressing delays

Active Publication Date: 2015-04-08
NEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent Documents 1 to 4 do not disclose a system for suppressing image quality degradation such as delay in screen update from the server on the thin client terminal, screen confusion, etc.

Method used

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  • Communication system, method, and program
  • Communication system, method, and program
  • Communication system, method, and program

Examples

Experimental program
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Effect test

Embodiment approach 1

[0050] figure 1 It is a figure which exemplifies the structure of 1st Embodiment of this invention. It shows that the mobile 3G network is used as the network, and the SGSN (Serving GPRS (General Packet Radio Service, General Packet Radio Service) Support Node, serving GPRS support node) / GGSN (Gateway GPRS Support Node, gateway GPRS support node) device is used as the data The structure of the case of the packet transfer device. Here, the SGSN / GGSN device refers to a device in which the SGSN device and the GGSN device are integrated. The server device 110 for thin clients shows a configuration that is arranged on the cloud network 130 and connects the cloud network 130 and the mobile network 150 . The cloud network 130 may be a network foundation for cloud computing, an IP-VPN (Virtual Private Network: Virtual Private Network) constructed by connecting the Internet and an IP network, or the like. Through the use of virtualization technology, server resources, storage resou...

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Abstract

The present invention reduces image-quality degradation, such as screen distortion or delays in screen updates from a server, on a terminal. In this communication system, a connection to a terminal (170) is established via a network (150), user input from said terminal is used to operate an application on a virtual terminal (virtual client unit) on a server device (110), and information generated thereby is transmitted to the terminal. The server device (110) sends a series of specific packets to the terminal (170) using predetermined timing, estimates the bandwidth of the network on the basis of information sent from the terminal in response, computes a rate to use when compressing screen information generated by the application on the virtual terminal (virtual client unit) and / or an accompanying audio signal such that said rate does not exceed the aforementioned estimated bandwidth, encodes said screen information and / or accompanying audio signal at the aforementioned computed rate, stores the results of said encoding in packets according to a predetermined protocol, and sends said packets.

Description

technical field [0001] [Remarks of related application] [0002] This invention is based on Japanese patent application: Japanese Patent Application No. 2012-163958 (applied on July 24, 2012), and the entire description content of this application is referred and incorporated in this specification. [0003] The present invention relates to a communication system, method and program. Background technique [0004] In enterprises and the like, thin client (thin client) systems have begun to spread in order to ensure a high level of security. There are various thin client installations such as image 3 As mentioned above, there is known a thin client system using a virtual machine. In the server device 110A, for example, a virtual machine (also called a virtual terminal or a virtual client) is configured on a virtualization layer, and a virtual OS (Operating System, operating system) (also called a "client OS") is executed on the virtual machine. ”), application (application ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/811H04M11/00H04L47/2416
CPCH04M11/00H04L67/04H04L47/38H04L47/263H04W8/04H04N19/156H04L43/0894
Inventor 小泽一范
Owner NEC CORP
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