Patent ID: 7627043

Claim:
A system comprising: a printed circuit board; a first integrated circuit mounted on the printed circuit board, where the first integrated circuit comprises a plurality of differential drivers; a second integrated circuit mounted on the printed circuit board, where the second integrated circuit comprises a plurality of differential receivers; a plurality of pairs of conductors each electrically coupling a respective one of the differential drivers to a respective one of the differential receivers, wherein each alternating pair of the plurality of pairs of conductors includes a first conductor crossover where a first conductor of that alternating conductor pair is crossed over a second conductor of that alternating conductor pair, and for each alternating pair of conductors that includes a first conductor crossover, further comprising: (i) a second conductor crossover where the second conductor of that alternating conductor pair is crossed over the first conductor of that alternating conductor pair; or (ii) coupling that alternating pair to a differential receiver having inputs with an orientation that is reversed to that of an adjacent differential receiver, and wherein each of the other pairs of conductors, besides said alternating pairs, does not include any crossover.