Circuit arrangement for telephone exchange installations with ce

Details Circuit arrangement for telephone exchange installations with ce Circuit arrangement for telephone exchange installations with ce

1971-02-03

1976-02-24

Brown, Thomas W.

H04Q 354

Patent

active

039405680

ABSTRACT:
A circuit arrangement for long distance telephone communication installations having a central apparatus comprising a central control unit and individual apparatus of different types; for example, internal connection sets, long distance line repeaters, exchange office repeaters in subscriber installations with extension stations, registers, dial receivers and the like. Correspondingly different information, for example dial impulse series, control criteria and the like are exchanged between the central control unit and the individual apparatus. Messages of different information content are transmitted by the same information signals by means of address information added to said signals. The address identifies a specific type of individual apparatus, and the evaluation of that address provides the correct interpretation of the information.

REFERENCES:
patent: 3281539 (1966-10-01), Dunlap et al.
patent: 3403383 (1968-09-01), Kienzle et al.
patent: 3420957 (1969-01-01), Ulrich
patent: 3478173 (1969-11-01), Lapsevskis et al.
patent: 3558829 (1971-01-01), Aro et al.

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