INFORMATIONSOVERFORINGSSYSTEM

This information transmission system for speech, music, text, images and data has a basic telecommunications network (I), in particular for analog transmission, and an additional digital overlay network (II). The two networks are interconnected between their terminating exchanges (6, 7, 9, 11) via a...

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Bibliographic Details
Main Authors H-M CHRISTIANSEN, H STREHL, H KOFFLER, R KERSTEN
Format Patent
LanguageSwedish
Published 10.05.1982
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
SELECTING
TELEPHONIC COMMUNICATION
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Summary:This information transmission system for speech, music, text, images and data has a basic telecommunications network (I), in particular for analog transmission, and an additional digital overlay network (II). The two networks are interconnected between their terminating exchanges (6, 7, 9, 11) via analog-digital or digital-analog converters (10, 12). Current communications facilities are retained thanks to the continued existence of the basic telecommunications network (I), while a user group interested in new, high-speed forms of communication can be served via the digital network (II).
Bibliography:Application Number: SE19780007377