Communication arrangement
AssigneeFingerprint Cards AB
InventorsAnders Khullar, Olis Olofsson
Life of this patent
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Abstract
The present invention relates to a communication arrangement configured to allow wired communication between an electronic host device and an electrical slave device, such as between a smart phone and a smart card during an enrollment process. The invention also relates to a method for providing instructions to a user of a smart card during an enrollment process.
Claims23
A communication arrangement arranged to electrically connect an electronic slave device to an electronic host device, the electronic slave device comprising a fingerprint sensor having an array of pixels and configured for capturing a fingerprint representation of a fingerprint pattern of a finger of a user, wherein the communication arrangement comprises:
- a cable,
- a connector provided a first end of the cable and arranged to be detachably connected to contact pads comprised with the electronic slave device,
- a control unit electrically connected to a second end of the cable, and
- a physical interface for allowing the control unit to be electrically connected to the electronic host device,
- wherein the control unit is configured to:
- convert communication signals from the electronic host device to the electronic slave device, the communication signals arranged to control capturing of the fingerprint representation using the fingerprint sensor at the electronic slave device for enrolling the finger of the user, and
- lock the communication arrangement if the enrollment is successful, thereby preventing further communication to be performed between the electronic host device and the electronic slave device using the communication arrangement.
A method for providing instructions to a user of a smart card during an enrollment process, the smart card comprising a fingerprint sensing system including a fingerprint sensor having an array of pixels and configured for capturing a fingerprint representation of a fingerprint pattern of a finger of a user and processing circuitry connected to and configured to control the operation of the fingerprint sensor, the method comprising:
- establishing a connection for data communication between the fingerprint sensing system of the smart card and an electronic host device, the electronic host device comprising a user interface;
- providing, within the user interface of the electronic host device, the user with an instruction to enter authentication information;
- validating the authentication information;
- providing, within the user interface of the electronic host device, the user with an instruction to position the finger at the fingerprint sensor, if a result of the validation is successful;
- acquiring, using the fingerprint sensor, the fingerprint representation;
- extracting, using the processing circuitry, fingerprint features from the fingerprint representation;
- forming a fingerprint template for user authentication based on the extracted fingerprint features, and
- storing the fingerprint template within a digital memory comprised with the smart card,
- wherein the connection for data communication between the fingerprint sensing system and the electronic host device is provided using a wired communication arrangement, and the method further comprises:
- locking the communication arrangement if the enrollment process is successful, thereby preventing further communication to be performed between the electronic host device and the smart card using the communication arrangement.
Dependencies are inferred from the claim text.