Appeal No. 2002-1210
Application No. 09/483,018
function, Matrix Transport Format (MTF) signals are converted to
differential signals through balanced drivers which are then
routed to an equalizer 96 for transmission to a wideband matrix
(col. 10, lines 47-59). Therefore, as pointed out by Appellant,
the system of Lyon operates on a larger scale having multiple
racks or shelves which requires the use of an equalizer in
connection with the balanced drivers.
Petit, similarly, relates to a method of interconnecting
orthogonal boards without any need for wiring between the boards
(col. 2, lines 8-16). As depicted in Figure 1, Petit provides
for first connectors 3 and second connectors 4 on facing edges of
the horizontal and vertical boards positioned on both sides of
mother board 7. The boards are connected to each other through
multiway connectors 5 and 6 mounted on the mother board (col. 3,
lines 49-65). However, Petit directly connects the boards
through only one level of connectors without any need for
additional wiring, different from Lyon which includes a plural-
stage system.
Hughes, on the other hand, is concerned with electrical
connection between orthogonally arranged circuit-carrying cards
arranged on two sides of a mother board through conductive pins
(col. 1, lines 39-52). Although Hughes mentions that such
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