DEVICE FOR CONNECTING A SUBSCRIBER LINE TO A SELECTED INTERNAL LINE

DEVICE FOR CONNECTING A SUBSCRIBER LINE TO A SELECTED INTERNAL LINE

Device for connecting one out of a plurality of internal lines (34,36) to an information exchange subscriber line, such as a telephone, facsimile or telex line, provided with decoding means (28,1-16) to detect dialling disc pulses (a), preferably on base of the time period between edges (b min ,b se...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: SMITS, JOHANNES H. M
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
SELECTING
TELEPHONIC COMMUNICATION
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Beschreibung
Zusammenfassung:Device for connecting one out of a plurality of internal lines (34,36) to an information exchange subscriber line, such as a telephone, facsimile or telex line, provided with decoding means (28,1-16) to detect dialling disc pulses (a), preferably on base of the time period between edges (b min ,b sec ) of these pulses, timing means (9,10,12) to determine a time interval after an edge in which the next edge should occur and a test means (13) to ascertain whether said next edge occurred indeed in said interval.