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Character Display Attributes for a Fixed Pitch Cathode Ray Tube Display

IP.com Disclosure Number: IPCOM000039457D
Original Publication Date: 1987-Jun-01
Included in the Prior Art Database: 2005-Feb-01
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Hays, DE: AUTHOR [+2]

Abstract

A software program enables a monochrome monitor of a personal computer (PC) to provide communication to an operator of various character attributes that cannot be displayed because the monochrome monitor does not have an all-points-addressable (APA) graphical display capability. A monochrome monitor of a PC has a fixed pitch cathode ray tube (CRT) display so that it does not support APA graphics, which can directly display characters in bolded, italicized, expanded, superscripted, subscripted, or underlined, for example. The monochrome monitor can only display the character attributes of bold and underline.

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Character Display Attributes for a Fixed Pitch Cathode Ray Tube Display

A software program enables a monochrome monitor of a personal computer (PC) to provide communication to an operator of various character attributes that cannot be displayed because the monochrome monitor does not have an all-points-addressable (APA) graphical display capability. A monochrome monitor of a PC has a fixed pitch cathode ray tube (CRT) display so that it does not support APA graphics, which can directly display characters in bolded, italicized, expanded, superscripted, subscripted, or underlined, for example. The monochrome monitor can only display the character attributes of bold and underline. The software to cause the monochrome monitor to support various character attributes may be as follows: Bold - text is highlighted; Expand - each expanded character is displayed by a "hat" over it and the next following space to show that the character takes up two character positions; Underline - text shows underlined;

Superscript - shown with an up arrow over the superscripted characters;

Subscript - shown with a down arrow over the subscripted characters. These character attributes may be mixed in any combination except that the same character cannot be both superscripted and subscripted. If a color monitor does not have APA graphical display capability, the software also may be used therewith. With such a color monitor, the bold could be shown in a different color, and the underscore w...