1979-04-25
1981-06-02
Atkinson, Charles E.
Excavating
340147SC, 370 16, G06F 1120
Patent
active
042715113
ABSTRACT:
A communications network is composed of a central mode and a plurality of remote nodes with each of the nodes including receiving means for receiving signals and transmitting means for transmitting signals. At the remote nodes each including two receiving means and a signalling means for transferring to the associated transmitting means for transferring to the associated transmitting means one kind of signal when signals are received by both associated receiving means and another kind of signal when only one of the receiving means receives a signal. In general, means connect the transmitting means of each node to one of the receiving means of two different successive nodes in such a manner that a unidirectional communication loop is obtained. In one embodiment of the invention all nodes are alike and one node is assigned to be the central node and the others to be remote nodes. In another embodiment the central node is unique and the remote nodes alike.
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Klein George
Manber Solomon
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