RADIO-RELAY SYSTEM FOR SIMULTANEOUS TRANSMISSION OF TELEPHONE AND VIDEO SIGNALS

被引：0

作者：

NISHINO, K ^{[1
]}

KOHIYAMA, K ^{[1
]}

KOBAYASHI, T ^{[1
]}

机构：

[1] NIPPON TELEGRAPH & TEL PUBL CORP- -,BUR ENGN,TOKYO,JAPAN

来源：

JAPAN TELECOMMUNICATIONS REVIEW | 1977年 / 19卷 / 01期

关键词：

TELEPHONE SYSTEMS; AUTOMATIC - TELEVISION TRANSMISSION;

D O I：

暂无

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

A radio-relay system for simultaneous transmission of telephone and video signals was developed for transmitting a 4 MHz color video signal and multiplexed telephone signals simultaneously via existing FDM microwave transmission systems to which some equipment is added that includes the circuit-connecting equipment which combines with, and separates into, the multiplexed telephone signals and color video signal, and the system switching equipment. This system has been used as the transmission system of a video conference system. The system is expected to play an important role as the video transmission system of the conference system because it can be realized economically and simply by making a few changes on the existing microwave transmission system in the 5 GHz SF-E1 system, the 6 GHz SF-U3 system, the 11 Ghz SF-T5 system, etc.

引用

页码：36 / 42

页数：7

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