SIGNAL TRANSMISSION SYSTEM IN BUTTON TELEPHONE SET

PURPOSE:To prevent discontinuous signal from flowing to transmission line and to improve the transmission efficiency, by supplying a synchronizing pulse from a master device to each button telephone set via signal line and transmitting control data with the synchronizing pulse through multiplexing i...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SUGIURA RIYUUZOU, KIKUCHI JIYUNZOU, YOSHIDA TOSHIROU
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY SELECTING TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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