Appeal No. 1998-0752
Application 08/389,096
1. A method for recognizing one or more characters on a
document and the like comprising the steps of:
scanning said document with a device which is operable to
generate a signal having a time varying amplitude represented
by a waveform which is peculiar to the shape of a character
being scanned;
determining the amplitude of said waveform at a
predetermined number of positions on a time scale of said
waveform, representing one dimension of said character, to
provide a set of sample values of the amplitude of said
waveform;
calculating the amplitude ratio value of a predetermined
number of samples of a set by dividing each sample magnitude
by the average magnitude of the predetermined number of
samples of the set;
determining the difference between selected ones of said
sample amplitude ratio values with respect to an adjacent
sample amplitude ratio value to generate a set of ratio
difference values; and
comparing said set of ratio difference values to
predetermined sets of ratio difference values, each of said
predetermined sets of ratio difference values representing the
identity of a character, to recognize the character being
scanned.
9. A method for recognizing one or more characters on a
document and the like comprising the steps of:
scanning said document with a device which is operable to
generate a signal having a time varying amplitude waveform
which is peculiar to the shape of a character being scanned;
determining the amplitude of said waveform at a
predetermined number of positions on a time scale of said
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