Browse Prior Art Database

Character Recognition System for Different Size Fonts

IP.com Disclosure Number: IPCOM000095027D
Original Publication Date: 1965-Aug-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 46K

Publishing Venue

IBM

Related People

Tellep, D: AUTHOR

Abstract

This arrangement is provided in a character reader for reading type fonts which are enlarged versions of those for which the reader is initially arranged.

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Character Recognition System for Different Size Fonts

This arrangement is provided in a character reader for reading type fonts which are enlarged versions of those for which the reader is initially arranged.

Character reader s employing electromechanical scanners have certain reading characteristics fixed by the mechanical design. If the font size is altered, it is usually necessary to make drastic changes in the mechanical portion of the machine. This is because changes in timing occur with changes in character size. In the arrangement shown, however, it is possible to compensate for increases in height and width of characters. This is effected without extensive changes in the scanner or transport portion of the character reader. In optical system 3 of the scanning equipment, a suitable lens change is made to reduce the height of the enlarged character to the same height as the original font. This change accommodates the increased height of the new font.

To accommodate the change in width, extra columns of shift register stages are interspersed between the columns of shift register stages originally provided in the machine. Thus, between the first column comprising shift register stages SR1... SR17 and the second column comprising stages SR18... SR34, an auxiliary shift register column including stages ASR1... ASR17 is provided. Switching devices selectively switch ASR1... ASR17 in or out of the circuit. When selector switch SW is in its uppermost or normal pos...