Fingerprint Cards Anacatum IP Ab

Dirac Research Ab

Pedro Højen-Sørensen

Søren Skovgaard Christensen

Morten Rolle Hansen

Mikkel Stegmann

Johannes Röjder

Metodi Yankov

There is provided a method and corresponding system for generating harmonics based on an input signal. The method comprises deriving (S), from the input signal, one or more frequency band signals; generating (S), from at least one or each of said frequency band signals, a first amplitude proportional signal comprising one or more harmonics components, said first amplitude proportional signal having an amplitude proportional to the amplitude of the input signal; generating (S), from at least one or each of said frequency band signals, a normalized signal, said normalized signal having an amplitude independent of the amplitude of the input signal, and multiplying, for at least one or each of said frequency band signals, the normalized signal with the corresponding first amplitude proportional signal to generate a second amplitude proportional signal comprising one or more harmonics components; and creating (S), for at least one or each of said frequency band signals, an output signal based on the first amplitude proportional signal comprising one or more harmonics components and the second amplitude proportional signal comprising one or more harmonics components.

Method and system for generating harmonics as well as an amplitude proportional harmonics unit for virtual bass systems

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.

Single-feature fingerprint recognition

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Allerød, Denmark

Pedro Højen-Sørensen