Doorbell system

The present invention discloses a doorbell system including a supply circuit, a smart module, a chime, a switch, and a control module. The smart module is used to provide a smart function. The switch is electrically connected between the control module, the smart module and the supply circuit. When...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WU, HUNGN, YU, TSAI-YU, YANG, TENGIEH
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TELEPHONIC COMMUNICATION
Online-Zugang:	Volltext bestellen
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