Fingerprint Cards AB Patent applications |
Patent application number | Title | Published |
20160132711 | CREATING TEMPLATES FOR FINGERPRINT AUTHENTICATION - The present invention concerns a method, a system, a device for enrolling biometric data of a body part to be used for user authentication, using a two-dimensional sensor. The method comprises capturing, using the two-dimensional sensor, images representing different views of the body part, stitching the images into at least one mosaic, generating at least one constructed image by determining at least one area of interest in the mosaic, the area of interest representing an additional view of the body part, and extracting image data of the area of interest, and enrolling the constructed images in a set of templates to be used for user authentication. | 05-12-2016 |
20160132710 | FINGERPRINT AUTHENTICATION USING STITCH AND CUT - The present invention concerns a method, a system, a device of authenticating a user using a body part including biometric information. The method comprises stitching partial enrolment images comprising different views of the user's body part into at least one mosaic and thereby creating an enrolled image, acquiring an authentication image of the body part, wherein the size of the authentication image is a fraction of the enrolled image, determining at least one area of interest in the enrolled image, and matching the authentication image with image data of the determined area of interest in the enrolled image. | 05-12-2016 |
20160125220 | FINGERPRINT SENSING DEVICE WITH PROTECTIVE COATING - A sensing device comprising a plurality of sensing elements, each of the sensing elements being configured to provide a signal indicative of an electromagnetic coupling between the sensing element and a finger placed on a surface of the sensing device, a first layer arranged to cover the plurality of sensing elements, the first layer comprising a plurality of recesses, and a second layer arranged to cover the first layer, the second layer having hydrophobic surface properties. There is also provided a method for manufacturing such a sensing device. | 05-05-2016 |
20160078274 | METHOD AND FINGERPRINT SENSING SYSTEM FOR AUTHENTICATING A CANDIDATE FINGERPRINT - The present invention generally relates to a method for authenticating a candidate fingerprint using a fingerprint authentication system, and specifically to the possibility of using personalized fingerprint sensor setting for a fingerprint sensor comprised with the fingerprint authentication system. The invention also relates to a corresponding electronic device and to a computer program product. Advantages with the invention include a minimized processing time for acquiring a good quality fingerprint image, thus increasing user convenience. | 03-17-2016 |
20160078269 | FINGERPRINT SENSOR WITH SYNC SIGNAL INPUT - The present invention relates to a fingerprint sensor comprising a voltage supply interface for receiving a supply voltage; a sensor communication interface for providing the fingerprint pattern signal to external circuitry; a synchronization input for receiving a sync signal interpreted to correspond to a first logical state when the sensor ground potential is at the first potential and to a second logical state, different from the first logical state, when the sensor ground potential is at the second potential, and a plurality of sensing elements, each comprising a sensing structure. The sensing elements are configured such that the potential of the sensing structures follows the potential of the modulated fingerprint sensor ground potential, and the timing of the sampling of sensing signals from the sensing elements is based on perceived state transitions of the sync signal. | 03-17-2016 |
20160063298 | GUIDED FINGERPRINT ENROLLMENT - Fingerprint enrolment is described. An initial procedure in which the appropriate area of the finger is determined from the size of a user's finger, followed by a guidance procedure where guidance information is provided in a pseudo random manner and further fingerprint data is obtained during the pseudo random guidance. When the appropriate area of the finger has been covered, fingerprint data is used in a calculation of fingerprint enrolment data that can be used in subsequent steps in the enrolment procedure. | 03-03-2016 |
20150347807 | ELECTRONIC DEVICE WITH FINGERPRINT SENSING SYSTEM AND CONDUCTING HOUSING - The present invention relates to an electronic device comprising a fingerprint sensing system including a plurality of sensing elements, each being configured to capacitively couple to a finger arranged adjacent to the sensing element and to provide a sensing signal indicative of a response to a time-varying finger excitation signal provided to the finger; and an electrically conducting housing at least partly enclosing an interior of the electronic device. The electronic device further comprises housing connection circuitry connected to the electrically conducting housing, and arranged and configured to at least intermittently allow a potential of the electrically conducting housing to follow the finger excitation signal. Hereby the housing can be used to enhance the functionality of the fingerprint sensing system. | 12-03-2015 |
20150310248 | CAPACITIVE FINGERPRINT SENSOR WITH IMPROVED SENSING ELEMENT - The present invention relates to a capacitive fingerprint sensing device comprising a semiconductor substrate; and an array of sensing elements formed on the semiconductor substrate. Each of the sensing elements comprises a protective dielectric top layer; a sensing structure arranged underneath the top layer; and a charge amplifier connected to the sensing structure. The charge amplifier comprises a negative input connected to the sensing structure; a positive input; an output providing a sensing signal; a feedback capacitor; and a sense transistor having a gate constituting the negative input. The sense transistor is formed in an insulated well in the semiconductor substrate. The fingerprint sensing device further comprises excitation signal providing circuitry connected to the positive input of the charge amplifier and the well for changing electric potentials of the sensing structure and the well, to thereby reduce the influence of parasitic capacitances in the sensing element. | 10-29-2015 |
20150269409 | METHOD OF CONTROLLING AN ELECTRONIC DEVICE - The present invention relates to a method of controlling an electronic device, the electronic device comprising a fingerprint sensor. The fingerprint sensor is typically comprised with a user input device providing a possible compliment and/or addition to a general user input device provided with the portable electronic device. Advantages with the invention include simplified user control of the portable electronic device. The invention also relates to a corresponding electronic device and to a computer program product. | 09-24-2015 |
20150015537 | FINGERPRINT SENSING SYSTEM AND METHOD - The present invention relates to a fingerprint sensing system comprising a sensor array with a plurality of sensing structures and read-out circuitry connectable to each of the sensing structures, and power supply circuitry arranged to provide to the read-out circuitry a substantially constant supply voltage being a difference between a high potential and a low potential. The fingerprint sensing system is configured in such a way that the low potential and the high potential are variable while substantially maintaining the supply voltage, and the read-out circuitry is connectable to each of the sensing structures in such a way that a variation in the low potential and the high potential while substantially maintaining the supply voltage results in a change of the charge carried by a sensing structure connected to the read-out circuitry. The change in charge is indicative of a capacitive coupling between the sensing structure and the finger. | 01-15-2015 |
20130108125 | BIOMETRIC VERIFICATION DEVICE AND METHOD | 05-02-2013 |