Appeal No. 96-3442
Application No. 08/253,884
of references since the basic teaching of a prior art
bootstrap circuit is provided in Appellant’s specification and
drawings.
Appellant further contends (Brief, page 6 )that there
is no teaching in Shin which would lead one of ordinary skill
to modify a conventional bootstrap circuit to include a
bipolar transistor coupled in the manner claimed. We note
that Appellant’s claim 1 recites
at least a pair of drivers and one capacitor
coupled in a configuration forming a bootstrap node,
each of said drivers having an input port; and
a bipolar transistor having its emitter coupled
to said node and having its base coupled to the input
port of one of said drivers.
More specifically, Appellant argues (Brief, pages 7 and 8)
that Shin teaches away from the claimed invention since the
circuit of Shin operates to restrict supply voltage to within
voltage supply rails in contrast to the bootstrapping
operation of Appellant’s claimed circuit. In addition,
Appellant points to the fact that Shin is not in any way
concerned with boosting output voltage as an indication of the
lack of motivation for the proposed combination.
7
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Next
Last modified: November 3, 2007