Abstract: There is provided a method and corresponding system for generating harmonics based on an input signal.

Abstract: The present disclosure generally relates to a method for authenticating a user using an electronic device, where the electronic device comprises a fingerprint sensor as well as a first and a second control unit. Preferably, the first control unit comprises a secure element and/or a secure block adapted to provide a secure processing environment. The present disclosure also relates to a corresponding electronic device and to a computer program product.

Abstract: The present disclosure relates to methods and devices for fingerprint recognition. In an aspect, a method of a fingerprint sensing system of extracting at least one fingerprint descriptor from an image captured by a fingerprint sensor for enrolment in the fingerprint sensing system is provided. The method comprises capturing images of a finger contacting the fingerprint sensor, detecting at least one fingerprint feature in each captured image, extracting fingerprint data from an area surrounding a location of the detected feature in each captured image, and extracting a fingerprint descriptor by performing a transform of the fingerprint data extracted from the area surrounding the location of the detected feature in each captured image, wherein a size of the area is selected such that the area comprises sufficient information to allow a duplicated descriptor to be discarded for the captured images.

Abstract: The present invention relates to providing a filtered fingerprint pattern signal indicative of a fingerprint pattern with a fingerprint sensing device comprising an array of sensing elements for sensing the fingerprint pattern. Each sensing element is configured to provide a sensing signal indicative of a local fingerprint pattern feature. The method comprises: receiving analog sensing signals from each of a set of sensing elements comprising at least four sensing elements, filtering the set of sensing signals to provide a set of filtered output signals each comprising a linear combination of the set of sensing signals in which each sensing signal has a respective coefficient. The coefficients in each linear combination sum up to zero, and wherein the linear combinations are different from each other. The set of filtered output signals are converted to a filtered digital sensing signal indicative of the user's fingerprint pattern.

Abstract: The present disclosure relates a method for fingerprint image enhancement comprising applying a first low pass filter and a first weight to raw fingerprint image data to produce a first filtered fingerprint image data set. Applying a second low pass filter and a second weight to the raw fingerprint image data to produce a second filtered fingerprint image data set. Filter coefficients of the second filter are different from filter coefficients of the first filter. The first filtered fingerprint image data set and the second filtered fingerprint image data set are combined to produce a final enhanced fingerprint image. The disclosure also relates to a fingerprint sensing system and to an electronic device comprising a fingerprint sensing system.

Abstract: The present disclosure relates to methods and devices for fingerprint recognition. In an aspect, a method of a fingerprint sensing system of extracting at least one fingerprint descriptor from an image captured by a fingerprint sensor for enrolment in the fingerprint sensing system is provided. The method comprises capturing images of a finger contacting the fingerprint sensor, detecting at least one fingerprint feature in each captured image, extracting fingerprint data from an area surrounding a location of the detected feature in each captured image, and extracting a fingerprint descriptor by performing a transform of the fingerprint data extracted from the area surrounding the location of the detected feature in each captured image, wherein a size of the area is selected such that the area comprises sufficient information to allow a duplicated descriptor to be discarded for the captured images.

Abstract: The present invention relates to a fingerprint sensing arrangement and to a method for providing a fingerprint pattern signal. For providing the fingerprint pattern signal a sensing signals from the sensing circuits of at least two sensing elements are combined according to an arithmetic operation to form a combined sensing signal. The combined sensing signal is compared to a threshold value. Based on the comparison a binary value is output. The fingerprint pattern signal comprises at least one set of binary values.

Abstract: The present invention relates to providing a filtered fingerprint pattern signal indicative of a fingerprint pattern with a fingerprint sensing device comprising an array of sensing elements for sensing the fingerprint pattern. Each sensing element is configured to provide a sensing signal indicative of a local fingerprint pattern feature. The method comprises: receiving analog sensing signals from each of a set of sensing elements comprising at least four sensing elements, filtering the set of sensing signals to provide a set of filtered output signals each comprising a linear combination of the set of sensing signals in which each sensing signal has a respective coefficient. The coefficients in each linear combination sum up to zero, and wherein the linear combinations are different from each other. The set of filtered output signals are converted to a filtered digital sensing signal indicative of the user's fingerprint pattern.

Abstract: The present disclosure relates a method for fingerprint image enhancement comprising applying a first low pass filter and a first weight to raw fingerprint image data to produce a first filtered fingerprint image data set. Applying a second low pass filter and a second weight to the raw fingerprint image data to produce a second filtered fingerprint image data set. Filter coefficients of the second filter are different from filter coefficients of the first filter. The first filtered fingerprint image data set and the second filtered fingerprint image data set are combined to produce a final enhanced fingerprint image. The disclosure also relates to a fingerprint sensing system and to an electronic device comprising a fingerprint sensing system.

Abstract: The present disclosure generally relates to a method for authenticating a user using an electronic device, where the electronic device comprises a fingerprint sensor as well as a first and a second control unit. Preferably, the first control unit comprises a secure element and/or a secure block adapted to provide a secure processing environment. The present disclosure also relates to a corresponding electronic device and to a computer program product.

Abstract: The present invention generally relates to a method for analyzing biometric measurements of a user, and specifically to determination of an alignment level between features of different biometric measurements acquired using a biometric sensor. The invention also relates to a corresponding fingerprint sensing system and to a computer program product.

Abstract: The present invention generally relates to a method for analyzing biometric measurements of a user, and specifically to determination of an alignment level between features of different biometric measurements acquired using a biometric sensor. The invention also relates to a corresponding fingerprint sensing system and to a computer program product.

Abstract: A method, apparatus and computer program product are provided to suppress interference, such as interference attributable to increased network density, interference attributable to interference between uplink and downlink transmissions in a TDD system and/or interference attributable to D2D communications. In the context of a method, it is determined whether communication between an access point and a mobile terminal or between a mobile terminal and another mobile terminal is to be subjected to real-valued modulation or complex-valued modulation such that the modulation and a dominant form of interference for the mobile terminal are either both real-valued or both complex-valued. The method also includes providing for communication with the mobile terminal in accordance with the one of real-valued modulation or complex-valued modulation that was determined.