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Scale Line for Display Attachment

IP.com Disclosure Number: IPCOM000077936D
Original Publication Date: 1972-Oct-01
Included in the Prior Art Database: 2005-Feb-25
Document File: 2 page(s) / 26K

Publishing Venue

IBM

Related People

Boyd, WW: AUTHOR [+3]

Abstract

It is difficult for an operator, when keying into a display, to set up format and be aware of the working point in the text. Normally, a single cursor associated with the text is used.

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Scale Line for Display Attachment

It is difficult for an operator, when keying into a display, to set up format and be aware of the working point in the text. Normally, a single cursor associated with the text is used.

To alleviate this problem, continuously displayed above the lines of text is a scale line containing tick marks which mark each character position. The scale line is also eighty-character positions long, and, therefore, if the line of print exceeds eighty characters, the scale line must be segmented with, for instance, a ten-character overlap.

Associated with the scale line is a secondary cursor which always, except in "setup", maintains the same horizontal position as the primary cursor on the working line of the text. This secondary cursor serves as a precise indicator of the working point relative to any set tabstops and the right margin.

In the "setup" mode, which allows the operator to have direct manual control of the scale-line cursor, the operator can set and reset tabstops and the right margin. Tabstops are displayed by a horizontal bar located above the tick mark or single-digit number where a tabstop is set. The right-hand margin is displayed by a vertical arrow pointing downward, and it always replaces a tick mark or single-digit number as shown.

When the operating point (cursor) exceeds the eightieth character position on the working line, and the scale line segments, it accordingly shows all fixed and variable information pertinent to...