INTERCOM MASTER UNIT HAVING CALLED OUT PATTERN AND SPECIFIC COMMAND DETECTION FUNCTION

PROBLEM TO BE SOLVED: To solve the problem in which: in a conventional intercom device having unlock function of an electric lock and the like, a slave unit exposes a card reader, buttons for password input, and a large call-out button, which lets other people recognize that they can perform operati...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	AOYANAGI HIROHISA, FUJIMAKI KAZUTOSHI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TELEPHONIC COMMUNICATION
Online-Zugang:	Volltext bestellen
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