Browse Prior Art Database

Telegraphic Receiver

IP.com Disclosure Number: IPCOM000093409D
Original Publication Date: 1967-Sep-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 26K

Publishing Venue

IBM

Related People

Brodd, WD: AUTHOR [+2]

Abstract

Signals received on line 10 are sensed by a magnetic amplifier including AC drive input 12, sense output 13 and bias winding 14. A suitable bias current is supplied through winding 14 which is part of transmit circuit 16 by the marking current through transmit relay transfer contact 17. During a transmit operation when the transfer contract 17 is transferred to generate electrical signals indicative of marks and spaces, the current through winding 14 is sensed at output 13 to provide an echo checking capability. The receive circuit 10 at this time has bias marking current supplied from the remote transmitter as explained.

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Telegraphic Receiver

Signals received on line 10 are sensed by a magnetic amplifier including AC drive input 12, sense output 13 and bias winding 14. A suitable bias current is supplied through winding 14 which is part of transmit circuit 16 by the marking current through transmit relay transfer contact 17. During a transmit operation when the transfer contract 17 is transferred to generate electrical signals indicative of marks and spaces, the current through winding 14 is sensed at output 13 to provide an echo checking capability. The receive circuit 10 at this time has bias marking current supplied from the remote transmitter as explained.

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