多地点間通信における端末間同期制御の切り替え方式

摘要

This report proposes a scheme which switches inter-destination (or group) synchronization control among three states dynamically according to work contents in multipoint communications with voice and video. In one state, inter-destination synchronization control is not exerted. In another state, the conventional inter-destination synchronization control is performed. In the other state, the inter-destination synchronization control considering difference of conversation roles is carried out. The proposed scheme can also switch conversation roles. By examining the timing from the generation of voice and video until the output, the report investigates behavior of the proposed scheme.%本報告では，音声・ビデオを用いた多地点間通信において，端末間同期制御を行わない状態，従来の端末間同期制御を行う状態，および会話立場の違いを考慮した端末間同期制御を行う状態の三つを作業内容に応じ，動的に切り替える方式を提案している．また，提案方式は，会話立場の切り替えも行えるようにしている．そして，メディアの発生から出力までの時刻に着目し，提案方式の振舞を検証する．