H - Electricity – 04 – B
Patent
H - Electricity
04
B
340/98
H04B 3/50 (2006.01) H04B 3/36 (2006.01) H04L 5/16 (2006.01) H04L 25/05 (2006.01) H04Q 11/04 (2006.01)
Patent
CA 1081816
ABSTRACT OF THE DISCLOSURE: A bidirectional digital transmission system having two end stations interconnected by a single two-wire line along which are inserted repeaters having a controllable amplification di- rection. Each end station includes transmission equipment com- prising a transmission store unit in which incoming digital in- formation is written-in at a rate of d bits per second and in which the such written-in information is read-out at a rate higher than 2d bits per second under control of a transmission control unit. A time-division multiplexer multiplexes a syn- chronization word and other auxiliary information with the such read-out information onto said line. A generator produces an analog control signal for the amplification direction of the re- peaters. The multiplexed information and the control signal are mixed and transmitted onto the two-wire line. Each end station also includes receiving equipment comprising a receiving store unit and a receiving control unit which controls the receiving store unit for writing thereinto incoming digital information at a rate higher than 2d bits per second and for reading out the latter digital information at a rate of d bits per second.
267535
Robic Robic & Associes/associates
Societe Anonyme de Telecommunications
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