Keypad security

A method for detecting a fake keypad includes: monitoring outputs of plural magnetic field sensors connected to a keypad; detecting the output of at least one of the magnetic field sensors indicates the presence of a magnetic field; starting, in response to the detecting, a timer; determining the fi...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Toska, Desilda, Garcia Delgado, Carolina, Campos Batista, David Alonso, Rodriguez Bravo, Cesar Augusto
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION
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