Unlock instant, AI-driven research and patent intelligence for your innovation.

System and method for realizing end-to-end visual telephone using telephone network and Ethernet

A videophone and Ethernet technology, applied in the field of communication networks, can solve the problems of slow pixels and frame rates, large delay jitter, and incoherent images.

Inactive Publication Date: 2005-03-02
INST OF COMPUTING TECH CHINESE ACAD OF SCI
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, we have seen that the existing videophones can only guarantee the quality of voice communication, and the distortion of the video image is relatively large, the picture is incoherent, and the time delay and jitter are relatively large.
The main reason for these problems is that the ITU-IH.324 standard adopted by the existing videophone supports relatively slow pixel and frame rates, and the image signal and voice signal are alternately transmitted by the existing analog telephone system, that is, You cannot talk while transmitting images; it takes 5-10 seconds to transmit a still image of the user's half body, and the transmission rate supported by the existing telephone network itself is low, resulting in large distortion of the video telephony

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • System and method for realizing end-to-end visual telephone using telephone network and Ethernet
  • System and method for realizing end-to-end visual telephone using telephone network and Ethernet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] figure 1 System composition, the system includes: user-side video phone equipment ①, ⑥, Ethernet access gateway ③, ④, voice access equipment □, □ and IP network, telephone network. The user end is connected with Ethernet access gateways ③, ④ and voice access devices □, □. Connect through Ethernet access gateway and voice access device.

[0012] Such as figure 1 As shown, the user-side device is a videophone device integrated with an Ethernet interface and IPv6 function (in figure 1 The numbers are ①, ⑥), the device can be used as an ordinary phone, but also can be used as a videophone device. It can also use IPv6 and Ethernet technology alone as an Internet terminal.

[0013] The interface between the telephone and the network side is configured with an Ethernet access gateway device (in figure 1 The numbers are ③, ④), which are used to identify the user's telephone equipment, perform digital domain name resolution, assign IPv6 addresses, etc., and transmit the vid...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

This invention utilizes telephone net and Ethernet to jointly realize end-to-end video videophone system and the method which utilizes Ethernet, IPV6 and current phone net to jointly realize end-to-end video videophone system and realize the service by the calling end Ethernet acc gate, IP network, called end Ethernet acc gate combined with user video videophone devices supporting IPV6, which realizes high quality end-to-end transmission of picture.

Description

technical field [0001] The invention relates to the technical field of communication networks, and relates to an end-to-end high-fidelity videophone system and method on the existing telephone network. In particular, it relates to a method for jointly implementing a video and voice communication system by using IPv6 (Internet Protocol version 6) technology and Ethernet technology. Background technique [0002] In recent years, with the rapid development of communication network technology, people's demand for real-time high-fidelity videophone is becoming more and more urgent. The outbreak of atypical pneumonia SARS in my country pushed the videophone to the forefront. However, we have seen that the existing videophones can only guarantee the quality of voice communication, and the distortion of video images is relatively large, the picture is incoherent, and the time delay and jitter are relatively large. The main reason for these problems is that the ITU-IH.324 standard ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06F17/00H04L12/00H04L29/06H04M11/06H04N7/14
Inventor 石晶林李忠诚
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI