US 11,704,360 B2
Apparatus and method for providing a fingerprint of an input signal
Estefanía Cano Ceron, Ilmenau (DE); Hanna Lukashevich, Ilmenau (DE); and Patrick Kramer, Ilmenau (DE)
Assigned to Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Munich (DE)
Filed by Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Munich (DE)
Filed on Sep. 15, 2020, as Appl. No. 17/21,806.
Application 17/021,806 is a continuation of application No. PCT/EP2019/057408, filed on Mar. 25, 2019.
Claims priority of application No. 18164739 (EP), filed on Mar. 28, 2018.
Prior Publication US 2021/0056136 A1, Feb. 25, 2021
Int. Cl. G06F 16/683 (2019.01); G10L 19/018 (2013.01); G10L 25/27 (2013.01); G10L 25/51 (2013.01); G06V 40/12 (2022.01)
CPC G06F 16/683 (2019.01) [G06V 40/1365 (2022.01); G10L 19/018 (2013.01); G10L 25/27 (2013.01); G10L 25/51 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An apparatus for providing a fingerprint of an input signal,
wherein the apparatus is configured to determine intensity values for a plurality of time-frequency regions of the input signal,
wherein the apparatus is configured to compare the intensity values associated with different time-frequency regions of the plurality of time-frequency regions, to acquire individual values of the fingerprint based on the comparison of intensity values associated with two time-frequency regions,
wherein the plurality of time-frequency regions are defined by a rotating kernel, rotating around a spectral bin of a time-frequency representation of the input signal,
wherein the rotating kernel extends over at least two spectral bins of the time-frequency representation of the input signal.