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Automatic Number Print Function for an Electronic Bidirectional Typewriter

IP.com Disclosure Number: IPCOM000053137D
Original Publication Date: 1981-Sep-01
Included in the Prior Art Database: 2005-Feb-12
Document File: 2 page(s) / 27K

Publishing Venue

IBM

Related People

Johnson, CF: AUTHOR

Abstract

In bilingual, bidirectional electronic typewriters for the Arabic and Hebrew languages, the languages are printed from right-to-left. However, numbers are keyboarded and printed from left-to-right. Consequently, on most bidirectional typewriters, the numbers are typed by estimating the space needed for the numbers, spacing this distance to the left, changing the print direction to left-to-right, keying the numbers, changing the print direction to right-to-left, then spacing to the left of the numbers to resume text typing, as illustrated at 10 and 12.

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Automatic Number Print Function for an Electronic Bidirectional Typewriter

In bilingual, bidirectional electronic typewriters for the Arabic and Hebrew languages, the languages are printed from right-to-left. However, numbers are keyboarded and printed from left-to-right. Consequently, on most bidirectional typewriters, the numbers are typed by estimating the space needed for the numbers, spacing this distance to the left, changing the print direction to left-to- right, keying the numbers, changing the print direction to right-to-left, then spacing to the left of the numbers to resume text typing, as illustrated at 10 and
12.

The automatic electronic function described herein allows the operator to key the Hebrew or Arabic text in the normal right-to-left direction, key the numbers from left-to-right, and then resume keying the text. Carrier positioning and print direction is controlled automatically by electronic logic to print the numbers in their desired left-to-right form and to correctly position the printed numbers in relation to the text.

The number print function is first described in terms of the overall logical operations and secondly in terms of operator actions, electronic logic operations and printer actions. The assumption is made that the disclosed function is implemented on an electronic typewriter, such as the IBM Model 60, in which keyboard inputs enter electronic logic and memory which, in turn, control the printer. Either microprocessor software or an electronic logic implementation of the function is possibl...