Appeal No. 95-5109
Application No. 08/063,665
circuits are never used together in Kondo. The outputs from
the peak detector circuits 43A through 43D are to a series of
integrators 45A through 45D. The explanation of the function
of the integrators makes clear that one type of peak detector
is used in one embodiment and the other type of peak detector
is used in another embodiment (column 13, lines 18 through
30). In a later paragraph (column 13, lines 42 through 44),
Kondo expressly states that “[t]he foregoing alternative
operating modes of peak detector circuit 43A and integrator
circuit 45A will best be appreciated by referring to FIG. 10.
. . .” (Emphasis added). In another operating mode of the
Kondo video camera, Kondo explains (column 19, lines 11
through 21) that:
For example, the focus detection signals produced by
integrator circuits 45A and 45B are used in
combination to sense the focus condition during
scanning of pixel elements within auto-focus area
AE , and the focus detection signals produced by
2
integrator circuits 45C and 45D are used as a
measure of the focus condition during scanning of
pixel elements within the auto-focus area AE . By
1
using a pair of focus detection signals, erroneous
indications attributable to artifacts or
interference in one of the focus detection signals
are avoided.
According to appellant (Brief, page 22):
7
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