About WAKAHARA TOSHIHIKO
About NTT 通信網総研
About UNEMOTO KAZUO
About NTT 通信網総研
About HIGAMI MASAO
About NTT 通信網総研
About 電子情報通信学会全国大会講演論文集
About digital communication
About Telephone,data communication and exchange in general
About 多地点
About テレビ
About 会議
About 通信制御