Appeal No. 1998-0752
Application 08/389,096
plural predetermined sets of identifiers in order to recognize
the character being scanned (column 4, line 57 to column 5,
line 19). Toyama lacks a teaching of normalizing the sampled
amplitudes, i.e., "calculating the amplitude ratio value of
each sample of a set by dividing each sample magnitude by the
average sample magnitude of the set."
Kao suggests, in the context of reading magnetic ink
characters, normalizing sampled amplitudes by dividing each
sample value by the largest sample found (column 5, line 55 to
column 6, line 15). Appellant admits at page 3, lines 9-22 of
the specification that "recently, methods have been developed"
whereby "[t]he series of digital words, representing the full
character width, are summed to create an average and each
individual word is divided by the average to generate a new
digital word that represents the ratio of the individual
digital words to the average."
We find that those skilled in the art having the
teachings of Toyama, Kao, and AAPA before them would have
normalized the sample amplitudes by dividing each amplitude by
the average of all samples, because Kao suggests that
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