Patent ID: 9600986
Date: 2017-03-21
CPC Classifications: G08B,H01F,H04B,H04L

Claim:
1. A signaling system comprising: a first data signal source and a first data signal receiver; at least two wire pairs, wherein one of the at least two wire pairs couples the first data signal source to the first data signal receiver; a magnetic core arrangement around which a portion of each wire of the at least two wire pairs is wound; a further signal source; a further winding, coupled to the further signal source, the further winding wound around the magnetic core arrangement, and electrically isolated from each wire of the at least two wire pairs; wherein the further winding is arranged so the further signal in each of the at least two wire pairs is a common-mode signal; and a further receiver coupled to receive the further signal by a coupling arrangement which is coupled to a first of the at least two wire pairs to receive the further signal and coupled to the second of the at least two wire pairs to provide a return path for current induced in the first of the at least two wire pairs by the further winding.