Appeal No. 96-1904
Application 08/164,854
The examiner applies the respective teachings of
Louis and Hagelstein which reflect the use of audible sounds
and tones
relative to keyboard operation. In particular, Hagelstein
teaches the use of a sound (wrong musical note) when a wrong
letter is typed. This latter disclosure is somewhat akin to
the typical and common circumstance with known computers
whereby a sound is generated indicating to an operator that an
action cannot be taken while another action is pending and
therefore required to be taken.
Considering the overall knowledge and level of skill
in the art at the time of appellant’s invention, it is
apparent to us that generating an appropriate tone in the
modified keyboard as discussed in the affirmed rejection of
claims 8, 9, 11, 12, 14, 15, 17, 18, and 21 would have been
obvious to one having ordinary skill in the computer keyboard
art. As we see it, the incentive on the part of one having
ordinary skill in the art for including the feature of tone
22
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