Inventor · disambiguated record

Frederik Nagel

Also filed as: NAGEL FREDERIK

105 granted patents·14 pending applications·608 citations·filing 2009–2024

99Inventor score

Technology areasG10L H04S H03M

Files withFRAUNHOFER GES FORSCHUNG92 NAGEL FREDERIK8 DISCH SASCHA6 NEUENDORF MAX6 FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E V2

Top patents by PatentIndex Score

119 records

0198US12142284B2Audio encoder, audio decoder and related methods using two-channel processing within an intelligent gap filling frameworkFRAUNHOFER GES FORSCHUNG·Filed 2023·Granted Nov 12, 2024·2 cites·17 claims
0298US11922956B2Apparatus and method for encoding or decoding an audio signal with intelligent gap filling in the spectral domainFRAUNHOFER GES FORSCHUNG·Filed 2022·Granted Mar 5, 2024·9 cites·11 claims
0398US11735192B2Audio encoder, audio decoder and related methods using two-channel processing within an intelligent gap filling frameworkFRAUNHOFER GES FORSCHUNG·Filed 2022·Granted Aug 22, 2023·8 cites·17 claims
0497US11705146B2Audio encoder and bandwidth extension decoderFRAUNHOFER GES FORSCHUNG·Filed 2022·Granted Jul 18, 2023·2 cites·15 claims
0597US11631418B2Audio encoder and bandwidth extension decoderFRAUNHOFER GES FORSCHUNG·Filed 2022·Granted Apr 18, 2023·2 cites·14 claims
0696US11894002B2Apparatus and method for processing an input audio signal using cascaded filterbanksFRAUNHOFER GES FORSCHUNG·Filed 2022·Granted Feb 6, 2024·2 cites·20 claims
0796US10937437B2Audio encoder and bandwidth extension decoderFRAUNHOFER GES FORSCHUNG·Filed 2019·Granted Mar 2, 2021·17 cites·14 claims
0896US10229696B2Audio encoder and bandwidth extension decoderFRAUNHOFER GES FORSCHUNG·Filed 2015·Granted Mar 12, 2019·19 cites·17 claims
0996US8447620B2Multi-resolution switched audio encoding/decoding schemeNEUENDORF MAX·Filed 2011·Granted May 21, 2013·65 cites·19 claims
1095US11289104B2Apparatus and method for encoding or decoding an audio signal with intelligent gap filling in the spectral domainFRAUNHOFER GES FORSCHUNG·Filed 2019·Granted Mar 29, 2022·8 cites·12 claims
1195US9043215B2Multi-resolution switched audio encoding/decoding schemeFRAUNHOFER GES FORSCHUNG·Filed 2012·Granted May 26, 2015·29 cites·18 claims
1294US11594237B2Audio encoder and bandwidth extension decoderFRAUNHOFER GES FORSCHUNG·Filed 2021·Granted Feb 28, 2023·2 cites·10 claims
1394US11495236B2Apparatus and method for processing an input audio signal using cascaded filterbanksFRAUNHOFER GES FORSCHUNG·Filed 2020·Granted Nov 8, 2022·3 cites·20 claims
1494US11049506B2Apparatus and method for encoding and decoding an encoded audio signal using temporal noise/patch shapingFRAUNHOFER GES FORSCHUNG·Filed 2019·Granted Jun 29, 2021·7 cites·27 claims
1594US9058802B2Audio encoder, method for providing output signal, bandwidth extension decoder, and method for providing bandwidth extended audio signalFRAUNHOFER GES FORSCHUNG·Filed 2012·Granted Jun 16, 2015·21 cites·16 claims
1693US9230558B2Device and method for manipulating an audio signal having a transient eventDISCH SASCHA·Filed 2012·Granted Jan 5, 2016·26 cites·11 claims
1793US8296159B2Apparatus and a method for calculating a number of spectral envelopesNEUENDORF MAX·Filed 2011·Granted Oct 23, 2012·31 cites·18 claims
1893US8275626B2Apparatus and a method for decoding an encoded audio signalNEUENDORF MAX·Filed 2011·Granted Sep 25, 2012·39 cites·13 claims
1992US10909994B2Apparatus, method and computer program for generating a representation of a bandwidth-extended signal on the basis of an input signal representation using a combination of a harmonic bandwidth-extension and a non-harmonic bandwidth-extensionFRAUNHOFER GES FORSCHUNG·Filed 2019·Granted Feb 2, 2021·9 cites·18 claims
2092US10522156B2Apparatus, method and computer program for generating a representation of a bandwidth-extended signal on the basis of an input signal representation using a combination of a harmonic bandwidth-extension and a non-harmonic bandwidth-extensionFRAUNHOFER GES FORSCHUNG·Filed 2017·Granted Dec 31, 2019·10 cites·18 claims
2192US10002621B2Apparatus and method for decoding an encoded audio signal using a cross-over filter around a transition frequencyFRAUNHOFER GES FORSCHUNG·Filed 2016·Granted Jun 19, 2018·6 cites·15 claims
2292US9076433B2Apparatus and method for generating a synthesis audio signal and for encoding an audio signalFRAUNHOFER GES FORSCHUNG·Filed 2012·Granted Jul 7, 2015·14 cites·12 claims
2392US8401862B2Audio encoder, method for providing output signal, bandwidth extension decoder, and method for providing bandwidth extended audio signalNAGEL FREDERIK·Filed 2011·Granted Mar 19, 2013·21 cites·8 claims
2491US10147430B2Apparatus and method for decoding and encoding an audio signal using adaptive spectral tile selectionFRAUNHOFER GES FORSCHUNG·Filed 2016·Granted Dec 4, 2018·6 cites·20 claims
2591US8804970B2Low bitrate audio encoding/decoding scheme with common preprocessingGRILL BERNHARD·Filed 2011·Granted Aug 12, 2014·27 cites·26 claims
2691US8494865B2Audio decoder, audio encoder, method for decoding an audio signal, method for encoding an audio signal, computer program and audio signalFUCHS GUILLAUME·Filed 2011·Granted Jul 23, 2013·27 cites·19 claims
2790US9697838B2Apparatus, method and computer program for generating a representation of a bandwidth-extended signal on the basis of an input signal representation using a combination of a harmonic bandwidth-extension and a non-harmonic bandwidth-extensionNAGEL FREDERIK·Filed 2010·Granted Jul 4, 2017·12 cites·18 claims
2889US10332539B2Apparatus and method for encoding and decoding an encoded audio signal using temporal noise/patch shapingFRAUNHOFER GES FORSCHUNG·Filed 2015·Granted Jun 25, 2019·5 cites·14 claims
2989US2025225989A1Apparatus, method and computer program for generating a representation of a bandwidth-extended signal on the basis of an input signal representation using a combination of a harmonic bandwidth-extension and a non-harmonic bandwidth-extensionFRAUNHOFER GES FORSCHUNG·Filed 2024·Application pending·0 cites
3089US2025225991A1Apparatus, method and computer program for generating a representation of a bandwidth-extended signal on the basis of an input signal representation using a combination of a harmonic bandwidth-extension and a non-harmonic bandwidth-extensionFRAUNHOFER GES FORSCHUNG·Filed 2024·Application pending·0 cites
3189US2025225993A1Apparatus, method and computer program for generating a representation of a bandwidth-extended signal on the basis of an input signal representation using a combination of a harmonic bandwidth-extension and a non-harmonic bandwidth-extensionFRAUNHOFER GES FORSCHUNG·Filed 2024·Application pending·0 cites
3289US2025225992A1Apparatus, method and computer program for generating a representation of a bandwidth-extended signal on the basis of an input signal representation using a combination of a harmonic bandwidth-extension and a non-harmonic bandwidth-extensionFRAUNHOFER GES FORSCHUNG·Filed 2024·Application pending·0 cites
3389US2025225990A1Apparatus, method and computer program for generating a representation of a bandwidth-extended signal on the basis of an input signal representation using a combination of a harmonic bandwidth-extension and a non-harmonic bandwidth-extensionFRAUNHOFER GES FORSCHUNG·Filed 2024·Application pending·0 cites
3489US2025225994A1Apparatus, method and computer program for generating a representation of a bandwidth-extended signal on the basis of an input signal representation using a combination of a harmonic bandwidth-extension and a non-harmonic bandwidth-extensionFRAUNHOFER GES FORSCHUNG·Filed 2024·Application pending·0 cites
3588US10032458B2Apparatus and method for processing an input audio signal using cascaded filterbanksFRAUNHOFER GES FORSCHUNG·Filed 2017·Granted Jul 24, 2018·5 cites·20 claims
3688US8606586B2Bandwidth extension encoder for encoding an audio signal using a window controllerNAGEL FREDERIK·Filed 2011·Granted Dec 10, 2013·19 cites·26 claims
3787USRE50718EApparatus and method for generating a bandwidth extended signalFRAUNHOFER GES FORSCHUNG·Filed 2023·Granted Dec 30, 2025·0 cites·31 claims
3887USRE50655EApparatus and method for generating a bandwidth extended signalFRAUNHOFER GES FORSCHUNG·Filed 2023·Granted Nov 4, 2025·0 cites·31 claims
3987USRE50650EApparatus and method for generating a bandwidth extended signalFRAUNHOFER GES FORSCHUNG·Filed 2023·Granted Oct 21, 2025·0 cites·31 claims
4087USRE50638EApparatus and method for generating a bandwidth extended signalFRAUNHOFER GES FORSCHUNG·Filed 2023·Granted Oct 14, 2025·0 cites·31 claims
4187USRE50639EApparatus and method for generating a bandwidth extended signalFRAUNHOFER GES FORSCHUNG·Filed 2023·Granted Oct 14, 2025·0 cites·31 claims
4287US10770079B2Apparatus and method for processing an input audio signal using cascaded filterbanksFRAUNHOFER GES FORSCHUNG·Filed 2018·Granted Sep 8, 2020·4 cites·19 claims
4387US8788276B2Apparatus and method for calculating bandwidth extension data using a spectral tilt controlled framingNEUENDORF MAX·Filed 2009·Granted Jul 22, 2014·21 cites·19 claims
4486US9159337B2Apparatus and method for generating a high frequency audio signal using adaptive oversamplingVILLEMOES LARS·Filed 2010·Granted Oct 13, 2015·14 cites·15 claims
4585US9792915B2Apparatus and method for processing an input audio signal using cascaded filterbanksVILLEMOES LARS·Filed 2012·Granted Oct 17, 2017·7 cites·22 claims
4685US9305557B2Apparatus and method for processing an audio signal using patch border alignmentNAGEL FREDERIK·Filed 2012·Granted Apr 5, 2016·7 cites·13 claims
4785US8457975B2Audio decoder, audio encoder, methods for decoding and encoding an audio signal and computer programNEUENDORF MAX·Filed 2010·Granted Jun 4, 2013·14 cites·35 claims
4884US12475903B2Audio encoder and bandwidth extension decoderFRAUNHOFER GES FORSCHUNG·Filed 2023·Granted Nov 18, 2025·0 cites·18 claims
4984US12308036B2Apparatus and method for processing an input audio signal using cascaded filterbanksFRAUNHOFER GES FORSCHUNG·Filed 2023·Granted May 20, 2025·0 cites·7 claims
5084US9318127B2Device and method for improved magnitude response and temporal alignment in a phase vocoder based bandwidth extension method for audio signalsDISCH SASCHA·Filed 2012·Granted Apr 19, 2016·9 cites·25 claims

Showing the top 50 of 119 patent records by PatentIndex Score.

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →