US 12,142,284 B2
Audio encoder, audio decoder and related methods using two-channel processing within an intelligent gap filling framework
Sascha Disch, Fuerth (DE); Frederik Nagel, Nuremberg (DE); Ralf Geiger, Erlangen (DE); Balaji Nagendran Thoshkahna, Erlangen (DE); Konstantin Schmidt, Nuremberg (DE); Stefan Bayer, Nuremberg (DE); Christian Neukam, Kalchreuth (DE); Bernd Edler, Fuerth (DE); and Christian Helmrich, Erlangen (DE)
Assigned to Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Munich (DE)
Filed by Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Munich (DE)
Filed on Jul. 11, 2023, as Appl. No. 18/220,677.
Application 18/220,677 is a continuation of application No. 17/576,780, filed on Jan. 14, 2022, granted, now 11,735,192.
Application 17/576,780 is a continuation of application No. 17/094,791, filed on Nov. 10, 2020, granted, now 11,257,505, issued on Feb. 22, 2022.
Application 17/094,791 is a continuation of application No. 16/156,683, filed on Oct. 10, 2018, granted, now 10,847,167, issued on Nov. 24, 2020.
Application 16/156,683 is a continuation of application No. 15/000,902, filed on Jan. 19, 2016, granted, now 10,134,404, issued on Nov. 20, 2018.
Application 15/000,902 is a continuation of application No. PCT/EP2014/065106, filed on Jul. 15, 2014.
Claims priority of application No. 13177346 (EP), filed on Jul. 22, 2013; application No. 13177348 (EP), filed on Jul. 22, 2013; application No. 13177350 (EP), filed on Jul. 22, 2013; and application No. 13177353 (EP), filed on Jul. 22, 2013.
Prior Publication US 2023/0352032 A1, Nov. 2, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G10L 19/00 (2013.01); G10L 19/008 (2013.01); G10L 19/02 (2013.01); G10L 19/022 (2013.01); G10L 19/025 (2013.01); G10L 19/03 (2013.01); G10L 19/032 (2013.01); G10L 19/06 (2013.01); G10L 21/0388 (2013.01); G10L 25/06 (2013.01); G10L 25/18 (2013.01); G10L 25/21 (2013.01); H04S 1/00 (2006.01)
CPC G10L 19/008 (2013.01) [G10L 19/0204 (2013.01); G10L 19/0208 (2013.01); G10L 19/0212 (2013.01); G10L 19/022 (2013.01); G10L 19/025 (2013.01); G10L 19/03 (2013.01); G10L 19/032 (2013.01); G10L 19/06 (2013.01); G10L 21/0388 (2013.01); G10L 25/06 (2013.01); G10L 25/18 (2013.01); G10L 25/21 (2013.01); H04S 1/007 (2013.01); G10L 19/02 (2013.01)] 17 Claims
OG exemplary drawing
 
1. Apparatus for generating a decoded two-channel signal, comprising:
a parametric decoder for providing parametric data for a second set of second spectral portions and a two-channel identification identifying, for a second spectral portion of the second set of second spectral portions, either a first two-channel representation for the second spectral portion of the second set of second spectral portions or a second two-channel representation for the second spectral portion of the second set of second spectral portions, the second two-channel representation being different from the first two-channel representation; and
a frequency regenerator for regenerating the second spectral portion of the second set of second spectral portions depending on a first spectral portion of a first set of first spectral portions, the parametric data for the second spectral portion of the second set of second spectral portions and the two-channel identification for the second spectral portion of the second set of second spectral portions to acquire a regenerated second spectral portion of the second set of second spectral portions,
wherein the first spectral portion of the first set of first spectral portions or any other first spectral portion of the first set of first spectral portions is surrounded by two second spectral portions of the second set of the second spectral portions.