Patent ID: 7382210

Claim:
A non-transformer circuit for injecting at least one broadband aggressor signal through inductive- or capacitive-coupling means into at least one of first and second thru broadband differential signal channels comprising first and second pairs of conductors, respectively, the circuit comprising: (a) a first aggressor channel comprising a third pair of conductors, at least portions of the first aggressor channel being positioned sufficiently close to at least portions of the first thru differential signal channel to cause inductively- or capactively-coupled crosstalk signals to be induced therein when the at least one aggressor signal is injected in the first aggressor channel; (b) a second aggressor channel comprising a fourth pair of conductors, at least portions of the second aggressor channel being positioned sufficiently close to at least portions of the second thru differential signal channel to cause inductively- or capactively-coupled crosstalk signals to be induced therein when the at least one aggressor signal is injected in the second aggressor channel; wherein at least portions of the first aggressor channel and the first differential signal channel are separated by a first distance that permits the acquisition of near-end cross-talk (NEXT) data from the first thru differential signal channel and the first distance falls within a range selected from the group consisting of between about 0.002 inches and about 0.020 inches, between about 0.004 inches and about 0.016 inches, between about 0.006 inches and about 0.014 inches, and between about 0.008 inches and about 0.012 inches.