Appeal No. 2001-0382
Application No. 08/861,481
a conductor pair with a predetermined twist length. More
particularly, the twist length for a first conductor pair differs
from the twist length of a second conductor pair. Further, at
least one of the individual insulated conductors that make up each
conductor pair is pre-twisted by being rotated about its central
axis at a predetermined rate of revolution prior to being twisted
with another conductor to establish a conductor pair. Appellants
assert (specification, page 4) that the insulated conductor
rotation improves the capacitance unbalance and the structural
return loss characteristics of the resulting cable.
Representative claim 1 is reproduced as follows:
1. A cabling media comprising:
two individual insulated metallic conductors twisted together
with a predetermined first twist length to form a first conductor-
pair;
two individual insulated metallic conductors twisted together
with a predetermined second twist length different than the first
twist length of the first conductor-pair to form a second
conductor-pair;
wherein at least one of the individual conductors in each of
the first conductor-pair and the second conductor-pair has been
rotated about its central axis at a predetermined rate of
revolution prior to being twisted with another conductor to
establish a conductor-pair; and
a sheath collectively surrounding the conductor-pairs.
2
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