Appeal No. 2002-0156 Page 4
Application No. 09/300,757
increased, the pulse width of the first output signal would not increase, but the pulse
width of the second output signal would (principal brief-page 15). Appellant concludes
that
...although the magnitude of the phase delay between the
two signals may be increased, the amount of overlap between
the first output signal and the second output signal would
not increase (principal brief-pages 15-16, bold emphasis in the original).
We find that the examiner has established a prima facie case of anticipation
which has not been successfully rebutted by appellant’s argument.
With regard to Noguchi, Figure 2A is a waveform representative of the input
signal at terminal 1 in Figure 1; Figure 2B is a waveform representative of the
reference signal at terminal 2 in Figure 1; Figure 2F is a waveform representative of a
first output signal at (f) DOWN in Figure 1; and Figure 2G is a waveform representative
of a second output signal at (g) UP in Figure 1.
As seen in Figures 2F and 2G, the waveforms of the first and second output
signals, or the UP and DOWN signal pulses, overlap different amounts. For example,
starting from the left and moving toward the right, initially the pulse of the first output
signal overlaps about 2/3 of the second output signal pulse, then both pulses are
substantially equal, and, finally, the first output signal pulse overlaps the second output
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