Service integrated communication transmission and...

Details Service integrated communication transmission and... Service integrated communication transmission and...

H - Electricity

04

J

325/1, 363/3, 37

H04J 1/05 (2006.01) H04H 20/81 (2009.01) H04B 10/12 (2006.01) H04M 11/06 (2006.01) H04N 7/22 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 1158787

ABSTRACT OF THE DISCLOSURE A service integrated communications transmission and switching system for audio, video and data, between a user terminal and a central switching station of a tele- phone system wherein the line connecting the user terminal with the switching station includes at most one light-conductive fiber which is utilized in wave multiplex duplex operation for the transmission and reception of signals from and to the user terminal; the narrowband services are provided by means of digital transmission with analog to digital and digital to analog conversion and multiplex and demultiplex taking place at the user end; and the broadband services are provided by means of analog transmission.

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