Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
221 words
A raster process for classifying characters the features of which may vary, into m classes, in which process the characters to be classified are imaged onto a raster field having n raster points, from each raster point there is derived an electrical voltage, and the obtained n electrical voltages are fed to resistance networks and are used therein for forming combinations, comprising the steps of: feeding the n electrical voltages derived from the raster points, for each of said classes to no more than n mutually independent resistance networks of each class; combining in each of said resistance networks of a class the electrical voltages derived from a group of predetermined raster points, which together correspond to characteristic form parts of characters of said class, said form parts being selectively comprised of a plurality of predetermined areas of said raster field, said areas comprising darkened areas of said raster field, light-remaining areas of said raster field, and two raster field areas of equal or approximately equal degree of darkening or lightening respectively, with each of said raster areas comprised of two or more raster points, to produce an output voltage at each of said resistance networks of a class; and determining whether the output voltage of each resistance network is below a threshold level associated with the class to be identified.
Claim 2
Dependent Claim
221 words
A raster process for classifying characters the features of which may vary, into m classes, in which process the characters to be classified are imaged onto a raster field having n raster points, from each raster point there is derived an electrical voltage, and the obtained n electrical voltages are fed to resistance networks and are used therein for forming combinations, comprising the steps of: feeding the n electrical voltages derived from the raster points, for each of said classes to no more than n mutually independent resistance networks of each class; combining in each of said resistance networks of a class the electrical voltages derived from a group of predetermined raster points, which together correspond to characteristic form parts of characters of said class, said form parts being selectively comprised of a plurality of predetermined areas of said raster field, said areas comprising darkened areas of said raster field, light-remaining areas of said raster field, and two raster field areas of equal or approximately equal degree of darkening or lightening respectively, with each of said raster areas comprised of two or more raster points, to produce an output voltage at each of said resistance networks of a class; and determining whether the output voltage of each resistance network is below a threshold level associated with the class to be identified.
Claim 3
Dependent Claim
65 words
A process according to claim 1 wherein said step of determining whether the output voltage of each resistance network is below a threshold level associated with the class to be identified, comprises the step of comparing the output voltage of each resistance network with a voltage which is proportional or approximately proportional to the sum of the n electrical voltages derived from the raster points.
Claim 4
Dependent Claim
19 words
A process according to claim 2 wherein the output voltage of each resistance network is passed through a regulator.
Claim 5
Dependent Claim
33 words
A process according to claim 3 wherein the voltage which is proportional or approximately proportional to the sum of the n electrical voltages derived from the raster points is passed through a regulator.