Browse Prior Art Database

New Approach to Emulate an Image/Fax Viewing Terminal Attached to AS/400

IP.com Disclosure Number: IPCOM000115442D
Original Publication Date: 1995-May-01
Included in the Prior Art Database: 2005-Mar-30
Document File: 2 page(s) / 49K

Publishing Venue

IBM

Related People

Ishii, S: AUTHOR [+4]

Abstract

This article describes a new approach to emulate an image/fax viewing terminal (IBM* InfoWindow II 3489 display terminal) attached to AS/400* via a PC emulator program. The idea is not to have the emulator itself perform all of the functions provided the terminal but to have the other softwares take care of a part, by defining the interface (API) between softwares and the emulator. The approach makes it possible to take the advantage of the simplicity and inexpensiveness provided by the terminal without taking a large effort.

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This is the abbreviated version, containing approximately 60% of the total text.

New Approach to Emulate an Image/Fax Viewing Terminal Attached to
AS/400

      This article describes a new approach to emulate an image/fax
viewing terminal (IBM* InfoWindow II 3489 display terminal) attached
to AS/400* via a PC emulator program.  The idea is not to have the
emulator itself perform all of the functions provided the terminal
but to have the other softwares take care of a part, by defining the
interface (API) between softwares and the emulator.  The approach
makes it possible to take the advantage of the simplicity and
inexpensiveness provided by the terminal without taking a large
effort.

      The Image/fax of the 3489 display functions consist of 3 major
parts.  The first part is to receive the Image/fax compressed, the
second part is to decompress the Image/fax, and the third part is to
display the decompressed Image/fax on the screen.  From the
implementation view point, image decompression and the image display
are much harder and much time consuming part than the Image/fax
receiving and it is these parts which can be passed to the softwares
thru APIs.

The APIs may contain the following:
  o  The interface which enables the emulator to transfer the
      compressed Image/fax data (along with the associated
information)
      into the memory designated by the driver/software.
  o  The interface which enables the emulator to make an inquiry to
      the driver/software about the capability the driver/software is
     ...