Browse Prior Art Database

Color Monitor Emulation on Monochrome Non-Programmable Terminals

IP.com Disclosure Number: IPCOM000106598D
Original Publication Date: 1993-Nov-01
Included in the Prior Art Database: 2005-Mar-21
Document File: 2 page(s) / 35K

Publishing Venue

IBM

Related People

Amell, SJ: AUTHOR [+5]

Abstract

Disclosed is a solution for Non-Programmable Terminal (NPT) users that wish to have the usability advantages of color monitors on monochrome terminals by emulating a color monitor.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 95% of the total text.

Color Monitor Emulation on Monochrome Non-Programmable Terminals

      Disclosed is a solution for Non-Programmable Terminal (NPT)
users that wish to have the usability advantages of color monitors on
monochrome terminals by emulating a color monitor.

      A modular NPT consists of a standard PC VGA monitor as the
display with an attached keyboard.  A modular NPT could support
multiple colors via attributes which are controlled by an application
to specify different colors on the screen when a color PC monitor is
attached.  When a monochrome monitor is attached, applications
previously could use only 2 screen attributes, normal intensity and
hi-intensity.  (This excludes the attributes which are common between
the color display and the monochrome display such as "underscore",
"blink", "column separator", and "reverse field".) The user who
chooses to attach a monochrome monitor to a modular NPT could not
access the new attribute features.

      The modular NPT could be enhanced to provide the ability for
monochrome monitors to emulate the color monitors.  The emulation can
be done by utilizing the color palette capability provided by the
modular NPT for color monitors on monochrome monitors as well and by
identifying the NPT as a color NPT to the host.  The application
selectable colors are mapped into different shades of grey via the
color palette capability.  With the emulation, the monochrome monitor
can more closely display the same range of informat...