Terminal Design for Audio-Visual Communication Services

Hisashi IBARAKI  Shizuo NAKANO  Dai ANDO  Naoya REN  Yasuhiro TOMITA  

IEICE TRANSACTIONS on Communications   Vol.E78-B   No.10   pp.1372-1380
Publication Date: 1995/10/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Advanced Telecommunication Terminals)
audio-visual communication,  N-ISDN,  videophone,  video coding,  communication terminal,  

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Realizing an effective channel connection scheme and a useful human-machine interface is important for popularizing the audio-visual communication services that should become significant in the near future. This paper describes a terminal design that is applicable to various audio-visual communication services. First, future audio-visual services are classified into three types: Videophone, Tele-monitoring and Video On Demand(VOD). The requirements for these services are discussed in detail. Second, a channel connection scheme is specified taking into consideration for the requirements and characteristics of various networks such as N-ISDN and LANs. Terminals based on these specifications are developed as prototypes and demonstrated to confirm the validity of these specifications.