A card-type medium includes: a card body; an internal component embedded in the card body; an exposed component partially exposed on a front surface of the card body; and a circuit board to which the internal component and the exposed component are bonded, wherein the circuit board includes a first connection portion to which the internal component is bonded, a second connection portion to which the exposed component is bonded, the second connection portion being located at a position different from the first connection portion in a card thickness direction connecting the front surface of the card body and a rear surface on an opposite side of the card body to the front surface, and a connection wiring portion that connects the first connection portion and the second connection portion, the connection wiring portion extending in a direction including the card thickness direction.

A substrate for a dual interface smartcard, comprising a contact pad module receiving portion; an auxiliary module receiving portion; and a conductor pattern. The conductor pattern includes an antenna coil having a first end and a second end; a first set of connectors arranged in the contact pad module and including a GND connector and a VCC connector for electrical connection with a VCC connector of the contact pad module; a second set of connectors arranged in the auxiliary module receiving portion and including a GND connector and a VCC connector; and leads connecting connectors in the first set with connectors in the second set. One of the GND connector and the VCC connector in the first set of connectors is conductively connected to one of the first end and the second end of the antenna coil.

A device for contactless communication with a terminal, the device comprising: an antenna for receiving a wireless signal emitted by the terminal; an embedded chip configured to generate data for communication to the terminal to perform a first function associated with the device; and a module separate from the chip configured to perform processes as part of a second function associated with the device, the module being connected to the antenna and comprising a power-harvesting unit configured to harvest power from the received wireless signal to power at least the module.

Systems and methods are described related to using flexible circuitry in a payment accessory. In one embodiment, a payment device comprises a computing device and a memory. The computing device is configured to store a first biometric identifier for a first user and a second biometric identifier for a second user. The first biometric identifier is associated with a first transaction account and the second biometric identifier is associated with a second transaction account. A scanned biometric identifier of the first user is received. The first user is authenticated by matching the scanned biometric identifier to the first biometric identifier. The transponder is activated in response to matching the scanned biometric identifier to the first biometric identifier. The first transaction account is transmitted to a point of sale (POS) device for processing the payment transaction based on the first biometric identifier being linked with the first transaction account.

Provided is a method for managing a biometric sensor configured to collect a captured biometric data and a secure element able to communicate with the biometric sensor through a communication channel. The method comprises receiving a specific data by the biometric smart card, and checking the specific data by using a control data pre-stored in the biometric smart card. Only if said checking is successful, it then executes an erasing command for removing said reference biometric data from the biometric smart card and a disabling command for permanently deactivating the communication channel.

A method of a fingerprint sensing system arranged in a smartcard configured to acquire fingerprint data of a user with a fingerprint sensor for biometric authentication, and a fingerprint sensing system performing the method. The method comprises detecting a finger of the user contacting a sensing area of the fingerprint sensor, initializing the fingerprint sensor with a predetermined sensor setting, acquiring a calibration sub-image which is confined in size to a subarea of the sensing area, determining whether or not a quality criterion is met for the acquired calibration sub-image, and if so acquiring one or more further sub-images confined in size to a subarea of the sensing area during a time period when the smartcard is not engaged in waiting time extension request signalling with a card reader, and combining a plurality of the acquired further sub-images into a representation of a fingerprint of the user.

Method for manufacturing a biometric imaging module, the method comprising: providing a carrier tape; forming a sensor opening and at least one contact pad opening in the carrier tape, wherein the sensor opening is adjacent to the contact pad opening; and from a top side of the carrier tape, arranging a biometric sensor on the carrier tape such that a body of the biometric sensor is arranged in the sensor opening and a conductive contact pad of the biometric sensor is aligned with and accessible through the contact pad opening from a backside of the carrier tape, and such that a sensing surface of the biometric sensor is facing in the same direction as the top side of the carrier tape.

A method of biometric authentication includes receiving a biometric input from a user for authentication of the user to access a system. The method includes receiving a set of elements of a field and a random number from an authentication server via a network. The method further includes decoding the biometric input based on the set of elements to generate a polynomial. The method also includes generating a signature key based on the polynomial. The method includes signing the random number with the signature key. The method includes sending the signed random number to the authentication server. The method further includes restricting access to the system until the user is authenticated by the authentication server. The method also includes permitting access to the system in response to receiving an authentication message from the authentication server.

An electronic module for a chip includes a first dielectric substrate provided on one of the faces thereof with a first microelectronic chip whose input/output terminals are connected to first connection pins which are arranged around the first microelectronic chip, and a second dielectric substrate which is placed directly opposite the first substrate and which is provided on one of the faces thereof with a second microelectronic chip whose input/output terminals are connected to second connection pins which are arranged around the second microelectronic chip. The first and second microelectronic chips are arranged on the faces of the substrates directed towards the interior of the electronic module. A dielectric shim has a calibrated thickness and separates the first and second dielectric substrates. The shim has through-holes or vacancies accommodating electrically conductive materials connecting some of the first connection pins to some of the second connection pins.

A sensor device is provided that includes a fingerprint sensor and an antenna coupled with the fingerprint sensor for inductive coupling of the fingerprint sensor with a booster antenna.