Browse Prior Art Database

Keyboard Data Management

IP.com Disclosure Number: IPCOM000082351D
Original Publication Date: 1974-Nov-01
Included in the Prior Art Database: 2005-Feb-28
Document File: 2 page(s) / 55K

Publishing Venue

IBM

Related People

Schloss, PC: AUTHOR [+2]

Abstract

In a keyboard data entry device with a cathode-ray tube (CRT) visual display, prompting messages as well as the corresponding field control block are stored in general working buffers. When the keyboard is opened, a scan is made for the specified prompting messages. The message can be referenced directly in the keyboard open, or indirectly by specifying general purpose registers containing the information.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 2

Keyboard Data Management

In a keyboard data entry device with a cathode-ray tube (CRT) visual display, prompting messages as well as the corresponding field control block are stored in general working buffers. When the keyboard is opened, a scan is made for the specified prompting messages. The message can be referenced directly in the keyboard open, or indirectly by specifying general purpose registers containing the information.

When the scan is complete, the prompting message is displayed on the CRT. Following the message, the field, as defined in the field control block, is identified by the corresponding field shift character for the specified field length. For example, if the field control block defines a five position numeric field, following the prompting message five numeric shift characters are displayed defining the field length and keyboard shift. Data as keyed overlays the field shift characters.

Fields are linked together by a field control block which allows the entry of many fields each individually prompted through one keyboard open. Upon field exit the data can be transferred to a defined buffer with specified offset, to a register (the field being right aligned within the register) or to both a defined buffer and register.

1

Page 2 of 2

2

[This page contains 3 pictures or other non-text objects]