Appeal No. 1997-0412
Application No. 08/434,558
is not a stylus in which positioning signals are generated, as
recited in claim 18. Piliavin instead discloses that the
display elements sense a change in capacitance caused by the
operator's proximity to the display elements. In other words,
Piliavin suffers from the same deficiency as Rympalski.
Accordingly, we must reverse the anticipation rejection of
claims 18, 20, 21, and 28 over Piliavin.
Lastly, the examiner contends that More anticipates
claims 18, 20, 21, and 28. In More (column 12, lines 30-35),
however,
the terminuses of the display matrix electrodes are
alternately switched between: pen sense control
means 2 for sensing the presence or sufficient
proximity of the input pen 3; and the display
control means 11 for operating the display elements
to an "on" or "off" state.
More discloses substantially the same in column 13, lines 18-
21, and column 15, lines 49-55. In other words, More
"alternates use of the electrodes between the display and
position-sense functions and does not superimpose the position
and display signals" (Brief, pages 17-18). Thus, More fails
to anticipate the claims for the same reasons as Togashi.
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