TELEFONAPPARAT MED INTEGRERET KREDSLOEB

TELEFONAPPARAT MED INTEGRERET KREDSLOEB

An integrated circuit for a telephone instrument provides the basic (POT) service requirement. The circuit has means whereby the transmit and receive channels may be fed via controlled attenuators incorporated in an ancillary circuit to provide hands-free operation. The circuit also includes a curre...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: LEFEVRE ANDREW PAUL, BLOMLEY PETER FRED, ARTON KENNETH ALEXANDER MANSON, WHITTAKER EDWARD JOHN WEMYSS
Format: Patent
Sprache:dan
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TELEPHONIC COMMUNICATION
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:An integrated circuit for a telephone instrument provides the basic (POT) service requirement. The circuit has means whereby the transmit and receive channels may be fed via controlled attenuators incorporated in an ancillary circuit to provide hands-free operation. The circuit also includes a current limited power supply whereby connection to a further ancillary circuit including an audio amplifier may be effected to provide loudspeaker operation.