Appeal No. 1999-0864 Page 11
Application No. 08/757,550
• claims 5, 26, and 33
• claims 12-14
• claims 6, 18, 27, 28, 32, and 34.
We start with claims 5, 26, and 33.
A. Claims 5, 26, and 33
The examiner alleges, "[e]lements 3 and 2R and 2L [of
Sawachika] can make up the varying means for varying the
color-tone of the background environmental image of Yamanaka
because the intensity or color tone of a particular color
could be changed also from the environmental image, not only
from a main image, to maintain good image visibility in
different viewing environments." (Examiner's Answer, ¶ 11.)
The appellant argues, "Sawachika does not disclose varying a
color-tone ...." (Appeal Br. at 13.)
Claim 5 specifies in pertinent part the following
limitations: "the environmental image-changing means varies a
color-tone of the environmental image according to the
detected light quantity or brightness." Similarly, claim 26
specifies in pertinent part the following limitations: "the
varying includes changing a color-tone of the environmental
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