TOUCH SCREEN OVERLAY ATTACK PREVENTION

TOUCH SCREEN OVERLAY ATTACK PREVENTION

A method to obtain a codeword scrambled based, in part, on a code division multiplexing (CDM) pattern; generate a drive signal encoded with the scrambled codeword; and stimulate drive lines of a touch sensor in a touch screen over multiple measurement frames utilizing different patterns of the scram...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Portmann, Lionel Nicolas, Collins, Richard P
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:A method to obtain a codeword scrambled based, in part, on a code division multiplexing (CDM) pattern; generate a drive signal encoded with the scrambled codeword; and stimulate drive lines of a touch sensor in a touch screen over multiple measurement frames utilizing different patterns of the scrambled codeword for respective ones of the multiple measurement frames.