Appeal No. 95-1423
Application 07/928,883
examiner. Claims 70-72 and 74 all depend from claim 69 and
further recite a detector responsive to a numeric digit
(claim 70), capital character (claims 71 and 74), character
sequence, end of line or space (claim 72). Staar expressly
teaches a capital letter detector for a text display (col. 4,
lines 10-29 and Fig. 2). The PC Magazine article teaches that
changing the color of a character in a text display system is
well known (page 160, middle column, lines 7-15). These
references are directed to highlighting certain characters
depending on their position or type, rather than content, as
recited in claim 69. Both Staar and PC Magazine are directed
to the problem of making such characters more visible in a
color display. Accordingly, one of ordinary skill in the art
seeking to create contrast in a video display would have
considered these references as well as Nopp
and Havel. Together, the teachings of Staar and PC Magazine
would have suggested to one of ordinary skill in the art
incorporating a detector for different character types in the
visual display system of Nopp, as modified by Havel.
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