Broadcom Corporation

Fingerprint Cards Ab

Renesas Mobile Corporation

Fingerprint Cards Anacatum IP Ab

Lars Christensen

Carsten Juncker

Søren Skovgaard Christensen

Frank Robert Riedijk

Michael Sass Hansen

Hans Thörnblom

Wouter Brevet

Mikkel Stegmann

Morten Hansen

Mikkel B Stegmann

Frank Riedijk

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.

Fingerprint sensing arrangement and a method for filtering a fingerprint pattern signal

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.

Method and fingerprint sensing system for analyzing biometric measurements of a user

A method of determining a representation of a physical property of a finger using a finger sensing system comprising a two-dimensional measuring arrangement including a plurality of measuring elements, each defining a measuring element position in the measuring arrangement, and each comprising a finger electrode spaced apart from the finger by a dielectric structure. For each of the measuring element positions, the method comprises providing a measuring configuration in which the finger electrode of a sensing measuring element defining the measuring element position exhibits a sensing finger electrode potential; the finger electrode of a first different measuring element exhibits a first different finger electrode potential; and the finger electrode of a second different measuring element exhibits a second different finger electrode potential; acquiring a measurement value based on a sensing signal; and determining the representation of the physical property of the finger based on a plurality of measurement values.

Fingerprint sensing with voltage pattern configurations

Disclosed is an apparatus, method and computer program which frequency shifts a received signal by a first frequency value and low-pass filters the frequency shifted received signal at a first cutoff frequency to filter out a plurality of adjacent carrier frequencies. Parallel baseband processing is then performed on two or more adjacent carrier frequencies among the plurality of adjacent carrier frequencies based upon an adjacent carrier power criterion. In certain examples, the parallel baseband processing is adapted for detecting a frequency correction burst in two or more adjacent Global System for Mobile Communications carrier frequencies or an Enhanced Data Rates for Global System for Mobile Communications Evolution carrier frequencies.

Method, apparatus and computer program for search and synchronisation

A method, apparatus and computer program product are provided herein for enabling the joint detection and decoding of uplink state flag symbols. In this regard, a method is provided that determining one or more residual error terms by jointly detecting and decoding in one or more bursts of a radio block. In some example embodiments, the one or more residual error terms are determined over a plurality of uplink state flag symbols in the one or more bursts that correspond to a plurality of available uplink state flag sequences. The method of this embodiment may also include determining a weighted error measure for each of the plurality of available uplink state flag sequences based on the one or more residual error terms. The method of this embodiment may also include determining an uplink state flag value based on the plurality of weighted error measures.

Method and apparatus for signal detection and decoding

There are provided measures for cell search and synchronization. Such measures may exemplarily comprise acquiring an observation signal for a carrier signal on a carrier which is under consideration for synchronization with a desired cellular system, calculating a power measure of the observation signal, which indicates a received power of said carrier signal, calculating a non-circularity measure of the observation signal, which indicates a non-circularity of said carrier signal, and calculating a ranking measure, which indicates an applicability of said carrier for synchronization with the desired cellular system, based on the calculated power measure and the calculated non-circularity measure.

Method, apparatus and system for improving cell search and synchronization in a cellular communication system by using non-circularity of signal statistics

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Charlottenlund, Denmark

Lars Christensen