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Browse Prior Art Database

Data Transmission System Automatic Control Device

IP.com Disclosure Number: IPCOM000094196D
Original Publication Date: 1966-Jul-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Allen, EG: AUTHOR [+4]

Abstract

This automatic control device for a data communication system functions to detect both a loss of carrier signal or the lack of an incoming data signal within the body of a message. The device includes an abort timer which functions to automatically disconnect the transmitting station from a receiving station. Such occurs if a positive communicating condition is not established within a predetermined time.

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Data Transmission System Automatic Control Device

This automatic control device for a data communication system functions to detect both a loss of carrier signal or the lack of an incoming data signal within the body of a message. The device includes an abort timer which functions to automatically disconnect the transmitting station from a receiving station. Such occurs if a positive communicating condition is not established within a predetermined time.

A lack of incoming data within the body of a message condition effects an automatic disconnect from the line and initiates a delete message routine within the data communication system. A loss of carrier detection provides a line-in- operation or busy signal to the operator. The signal can also be used to assist in localizing the trouble between the terminal equipment for the data communication system and the common carrier line equipment.

The automatic control device prevents a hung-up condition on the data communication system when operating in a data mode. The line either opens up or the call originates from noncompatible data processing equipment.

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