US Patent 11962702 Biometric sensor

A biometric identification device may be used to secure passwords and other valuable information. In one implementation, the biometric identification device may be a capacitive fingerprint sensor. Capacitive readings may be used to identify the ridges and valleys of a fingerprint and determine if an object contacting the fingerprint sensor is living tissue. Two-factor identification may be implemented by recognizing the authenticity of biometric inputs and a specific combination or sequence in which the biometric inputs are provided. A user interface is provided in which sequences of biometric inputs are associated with commands. A user may indicate a command by providing a predetermined sequence of fingerprints to a fingerprint scanner.