TELEPHONE SET WITH AUTOMATIC SOUND RESPONSE FUNCTION

PURPOSE: To prevent the malfunction of a hand-free function by setting a system to be an incoming call state when the sound signal level of a sound frequency, which urges an incoming call, is judged to exceed a threshold level. CONSTITUTION: Noise at a periphery where a telephone set is installed is...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	HIRANO FUMITAKA, MINEO AKIRA
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TELEPHONIC COMMUNICATION
Online-Zugang:	Volltext bestellen
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