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US 4,380,060 AGranted
Device for push-pull transmission
AssigneeSiemens Aktiengesellschaft
InventorWilhelm Wilhelm
Life of this patent
Estimating the term…
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.
Claims5
A system for push-pull transmission of an item of binary information, comprising:
- at least one line group having n.gtoreq.3 lines;
- s push-pull transmitters and s push-pull receivers connected to the lines;
- a transmitting-end coder means for forming from k input signals to be transmitted s=(n-1) n/2 intermediate control signals for the control of the s push-pull transmitters whose outputs are connected in s different combinations to the n lines, where the number k of input signals is a maximum integer <log.sub.2 (n!);
- inputs of the s push-pull receivers being connected to the n lines;
- and a receiving-end coder means for forming k output signals which are identical to the k input signals from s intermediate signals emitted from the s push-pull receivers.
2 more elements
Dependencies are inferred from the claim text.