Multiplex communications – Wide area network – Packet switching
Patent
1980-09-24
1983-04-12
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370119, 375 36, H04J 1500
Patent
active
043800602
ABSTRACT:
The invention relates to a device for push-pull transmission of items of binary information, wherein in order to improve the ratio of the information which can be simultaneously transmitted to the number of lines in a line group comprising at least three lines, more than two different potentials are produced on the lines while maintaining a constant potential sum in the line groups. Two or more line groups can serve to form phantom circuits.
REFERENCES:
patent: 1663730 (1928-03-01), Ravut
patent: 3541239 (1970-11-01), Reid
patent: 3671671 (1972-06-01), Watanabe
patent: 4112253 (1978-09-01), Wilhelm
patent: 4173714 (1979-11-01), Bloch et al.
Olms Douglas W.
Siemens Aktiengesellschaft
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