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Memory Saving for Spaces in an Electronic Typewriter Having a Display

IP.com Disclosure Number: IPCOM000062330D
Original Publication Date: 1986-Nov-01
Included in the Prior Art Database: 2005-Mar-09
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Gerstle, PJ: AUTHOR [+2]

Abstract

In an electronic typewriter having a display and full page correction, memory is saved in the document storage by using code points for various types of spaces rather than the spaces while still having the spaces appear in the display so that the display shows what will be printed. In an electronic typewriter having a display and full page correction, it is desirable to display the text in the correction area in a manner which looks like the text as it will be printed on the paper. As one example, the white space covered by a tab should be shown instead of the Tab symbol.

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Memory Saving for Spaces in an Electronic Typewriter Having a Display

In an electronic typewriter having a display and full page correction, memory is saved in the document storage by using code points for various types of spaces rather than the spaces while still having the spaces appear in the display so that the display shows what will be printed. In an electronic typewriter having a display and full page correction, it is desirable to display the text in the correction area in a manner which looks like the text as it will be printed on the paper. As one example, the white space covered by a tab should be shown instead of the Tab symbol. As another example, if the carrier is past the right margin and the operator scrolls the paper vertically, the distance from the end of each line to the carrier should be shown on the display as white space between the end of the last word and the cursor so that the operator will know how many spaces from the last word that the cursor is located. A further example is when centering either between margins or at a specific column location. When centering between margins, white spaces are automatically inserted between the left margin and the start of the centered text with half of the centered text overstriking some of the spaces that the typist spaced out to the start center point. These spaces, which have been overstruck by the centered text, should not appear on the display, but they must be retained in the text so that the t...