Appeal No. 1998-1319
Application No. 08/466,188
voltages. However, the examiner has provided no reason from
the prior art as to why one of ordinary skill would have been
motivated to modify APA to include the additional elements.
Merely that the elements exist in the art and that the prior
art can be modified in the manner suggested by the examiner
does not make the modification obvious unless the prior art
suggested the desirability of the modification. In re Fritch,
972 F.2d 1260, 1266, 23 USPQ2d 1780, 1783-4 (Fed. Cir. 1992).
Therefore, the examiner has not properly combined APA, Suzuki,
and Arai. Consequently, we must reverse the rejection of
claims 9, 10, 15, and 18 through 44 over APA in view of Suzuki
and Arai.
As to the obviousness rejection over Aoki, Figure 5 of
Aoki shows that different gradations are produced by various
combinations of voltages supplied to the liquid crystal. For
each horizontal scan period, plural voltages output by the
voltage generator may be selected, and each applied for a
portion of the period. Thus, the selected output voltage is
not constant over the entire horizontal scanning period.
Accordingly, we must reverse the rejection of claims 9, 10,
15, 28, 29, and 34 through 44 which specify that the voltage
10
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