(57) ABSTRACT A piezoelectric micromechanical ultrasonic transducer (PMUT) includes a
multilayer stack disposed on a substrate. The multilayer stack may include an anchor …

PID (20 bytes)-permanent identity of a user signature= PPK Sign (nonce, s, ID) SEC (20
bytes)-secret code of a user s (20 bytes)-private key of a user for the PPK based validation …

An apparatus may include a one-or two-dimensional array of micromechanical ultrasonic
transducer (PMUT) elements positioned below, beside, with, on, or above a backplane of a …

(57) ABSTRACT A system, an apparatus and a method for providing a secure computing
environment may be provided. In one aspect, an apparatus may comprise a communication …

(57) ABSTRACT A system and method provide efficient, secure and highly reliable
authentication for transaction processing and/or access control applications in which only …

US PATENT DOCUMENTS tication agent. The method may additionally include initiat ing at
least a first communication between the user and the authentication agent via the …

An identification tag for authenticating a product is associ ated with the product and has
authentication data transmis sible to a reader device. The authentication data include …

The present invention enables automatic authentication of a personal digital key based
upon proximity of the key which is associated with a person. The system enables linking of …

(57) ABSTRACT A finger sensing apparatus may include an integrated circuit (IC) substrate,
an array of finger sensing elements on the IC Substrate, match circuitry on the IC Substrate …

BACKGROUND Generally, radio frequency identification (RFID) systems include an RFID
transponder (also referred to as an RFID tag or tag), and an RFID reader or interrogator …