GROUP SELECTING ARRANGEMENT FOR AUTOMATIC TELEPHONE SYSTEMS USING CROSSPOINT RELAY MATRIX SWITCHES

GROUP SELECTING ARRANGEMENT FOR AUTOMATIC TELEPHONE SYSTEMS USING CROSSPOINT RELAY MATRIX SWITCHES

1,131,369. Automatic exchange systems. HER MAJESTY'S POSTMASTER GENERAL, and AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. 31 Oct., 1966 [18 Nov., 1965], No. 5533/68. Divided out of 1,131,367. Heading H4K. In a group selector having two networks each comprising a plurality of linked primary and s...

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Hauptverfasser: DONALD KELSON, WILLIAM ARCHIBALD CHARLES HEMMINGS, PETER SAMUEL HAMPSON, JOHN ARTHUR GEE, DONALD FRANK RIGBY
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
SELECTING
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creator DONALD KELSON
WILLIAM ARCHIBALD CHARLES HEMMINGS
PETER SAMUEL HAMPSON
JOHN ARTHUR GEE
DONALD FRANK RIGBY
description 1,131,369. Automatic exchange systems. HER MAJESTY'S POSTMASTER GENERAL, and AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. 31 Oct., 1966 [18 Nov., 1965], No. 5533/68. Divided out of 1,131,367. Heading H4K. In a group selector having two networks each comprising a plurality of linked primary and secondary relay cross-point matrices, the outlets of each network are formed into levels comprising corresponding outlets of the secondary switches, the inlets of each network having individual access circuits, a control equipment (stage register) being provided for both networks in common and giving service to seized access circuits one at a time to be operative upon a digitally indicated group of outlets comprising at least one output level of the network served by the access circuit. The group selector is that described in Specification 1,131,367.
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
SELECTING
title GROUP SELECTING ARRANGEMENT FOR AUTOMATIC TELEPHONE SYSTEMS USING CROSSPOINT RELAY MATRIX SWITCHES
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