Browse Prior Art Database

Message Routing and Control Using End of Message Character

IP.com Disclosure Number: IPCOM000097507D
Original Publication Date: 1961-Jan-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 3 page(s) / 68K

Publishing Venue

IBM

Related People

Jensen, RA: AUTHOR [+2]

Abstract

Any one of several end-of-message EOM characters 1, 2, 3 and 4 indicates termination of a message in the communication station. In addition, each individual character establishes unique message routing and control functions.

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Message Routing and Control Using End of Message Character

Any one of several end-of-message EOM characters 1, 2, 3 and 4 indicates termination of a message in the communication station. In addition, each individual character establishes unique message routing and control functions.

The station has a core buffer 5 and associated Data Register 6 for slow- speed accumulation of characters. These are generated locally from a card reader 7, a tape reader 8, or a keyboard 9, prior to their transmission as a message group over an output line 10. The latter is gated through AND A-1 by Mode Control 11 on line 12. The buffer storage facility also permits high-speed, character-by-character accumulation of an incoming message on line 13, when gated through AND A-2 by 11 online 14.

Incoming messages are routed to a printer 15 which prints one character at a time, or to a visual display panel 16 which has individual indicators 17. Indicators 17 are settable to different numerical positions for displaying quantitative or monetary amounts with respect to a number of commodities, Ingots I, Plates P, Rods R and Bars B, under control of a decoder-scanner 18.

Four typical incoming messages A, B, C and D are shown (upper left) with, in each case, a different one of the EOM characters 1...4. All characters are normally handled in the station in seven-bit coded combinations. However, for illustrative purposes, only the EOM characters are shown in seven-bit form, and the other characters in each message are shown in a conventional, readable form.

When A-2 is activated, characters coming in on line 12 are entered into buffer 5 by means of the drivers 19. The locations set up by scanner 20 are under control of 11 on line 21.

If message A is being entered, its EOM 1001101 on line 2...