Inventor · disambiguated record
Christian Helmrich
Also filed as: HELMRICH CHRISTIAN
150 granted patents·16 pending applications·379 citations·filing 2011–2025
99Inventor score
Files withFRAUNHOFER GES FORSCHUNG151FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E V8FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV2HELMRICH CHRISTIAN2DISCH SASCHA1
Top patents by PatentIndex Score
166 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
- 0497US11769513B2Apparatus and method for decoding or encoding an audio signal using energy information values for a reconstruction bandFRAUNHOFER GES FORSCHUNG·Filed 2022·Granted Sep 26, 2023·2 cites·14 claims
- 0597US11657826B2Audio encoder, audio decoder, methods and computer program using jointly encoded residual signalsFRAUNHOFER GES FORSCHUNG·Filed 2020·Granted May 23, 2023·4 cites·40 claims
- 0696US9646624B2Audio encoder, audio decoder, method for providing an encoded audio information, method for providing a decoded audio information, computer program and encoded representation using a signal-adaptive bandwidth extensionFRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E V·Filed 2015·Granted May 9, 2017·33 cites·39 claims
- 0796US8655670B2Audio encoder, audio decoder and related methods for processing multi-channel audio signals using complex predictionFRAUNHOFER GES FORSCHUNG·Filed 2012·Granted Feb 18, 2014·72 cites·22 claims
- 0895US11289104B2Apparatus 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
- 0995US9997163B2Apparatus and method realizing improved concepts for TCX LTPFRAUNHOFER GES FORSCHUNG·Filed 2015·Granted Jun 12, 2018·13 cites·13 claims
- 1095US9978378B2Apparatus and method for improved signal fade out in different domains during error concealmentFRAUNHOFER GES FORSCHUNG·Filed 2015·Granted May 22, 2018·13 cites·24 claims
- 1195US9916833B2Apparatus and method for improved signal fade out for switched audio coding systems during error concealmentFRAUNHOFER GES FORSCHUNG·Filed 2015·Granted Mar 13, 2018·16 cites·22 claims
- 1294US11049506B2Apparatus 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
- 1394US10679632B2Apparatus and method for improved signal fade out for switched audio coding systems during error concealmentFRAUNHOFER GES FORSCHUNG·Filed 2018·Granted Jun 9, 2020·9 cites·22 claims
- 1494US9940938B2Audio encoder, audio decoder, methods and computer program using jointly encoded residual signalsFRAUNHOFER GES FORSCHUNG·Filed 2016·Granted Apr 10, 2018·9 cites·3 claims
- 1594US9398294B2Audio or video encoder, audio or video decoder and related methods for processing multi-channel audio or video signals using a variable prediction directionFRAUNHOFER GES FORSCHUNG·Filed 2012·Granted Jul 19, 2016·13 cites·19 claims
- 1693US11122300B2Spectrally adaptive noise filling tool (SANFT) for perceptual transform coding of still and moving imagesFRAUNHOFER GES FORSCHUNG·Filed 2020·Granted Sep 14, 2021·5 cites·15 claims
- 1792US11694704B2Apparatus and method for processing an audio signal using a harmonic post-filterFRAUNHOFER GES FORSCHUNG·Filed 2021·Granted Jul 4, 2023·2 cites·24 claims
- 1892US10854208B2Apparatus and method realizing improved concepts for TCX LTPFRAUNHOFER GES FORSCHUNG·Filed 2018·Granted Dec 1, 2020·6 cites·13 claims
- 1992US10002621B2Apparatus 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
- 2091US10354661B2Multi-channel audio decoder, multi-channel audio encoder, methods and computer program using a residual-signal-based adjustment of a contribution of a decorrelated signalFRAUNHOFER GES FORSCHUNG·Filed 2016·Granted Jul 16, 2019·9 cites·3 claims
- 2191US10242688B2Apparatus and method for processing an audio signal using a harmonic post-filterFRAUNHOFER GES FORSCHUNG·Filed 2017·Granted Mar 26, 2019·7 cites·17 claims
- 2290US10867613B2Apparatus and method for improved signal fade out in different domains during error concealmentFRAUNHOFER GES FORSCHUNG·Filed 2018·Granted Dec 15, 2020·6 cites·22 claims
- 2390US10622000B2Apparatus and method for selecting one of a first encoding algorithm and a second encoding algorithmFRAUNHOFER GES FORSCHUNG·Filed 2018·Granted Apr 14, 2020·7 cites·19 claims
- 2490US9595262B2Linear prediction based coding scheme using spectral domain noise shapingFRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E V·Filed 2013·Granted Mar 14, 2017·20 cites·13 claims
- 2589US10332539B2Apparatus 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
- 2689US10269365B2Noise filling without side information for CELP-like codersFRAUNHOFER GES FORSCHUNG·Filed 2015·Granted Apr 23, 2019·8 cites·14 claims
- 2788US9916834B2Method and apparatus for obtaining spectrum coefficients for a replacement frame of an audio signal, audio decoder, audio receiver, and system for transmitting audio signalsFRAUNHOFER GES FORSCHUNG·Filed 2015·Granted Mar 13, 2018·8 cites·39 claims
- 2886US11037580B2Apparatus and method for processing an audio signal using a harmonic post-filterFRAUNHOFER GES FORSCHUNG·Filed 2019·Granted Jun 15, 2021·4 cites·19 claims
- 2986US10839812B2Multi-channel audio decoder, multi-channel audio encoder, methods and computer program using a residual-signal-based adjustment of a contribution of a decorrelated signalFRAUNHOFER GES FORSCHUNG·Filed 2016·Granted Nov 17, 2020·5 cites·25 claims
- 3086US10176817B2Low-frequency emphasis for LPC-based coding in frequency domainFRAUNHOFER GES FORSCHUNG·Filed 2015·Granted Jan 8, 2019·5 cites·30 claims
- 3185US2025201253A1Decoder for Decoding an Encoded Audio Signal and Encoder for Encoding an Audio SignalFRAUNHOFER GES FORSCHUNG·Filed 2024·Application pending·0 cites
- 3284US10607614B2Apparatus and method realizing a fading of an MDCT spectrum to white noise prior to FDNS applicationFRAUNHOFER GES FORSCHUNG·Filed 2018·Granted Mar 31, 2020·2 cites·20 claims
- 3384US10083706B2Harmonicity-dependent controlling of a harmonic filter toolFRAUNHOFER GES FORSCHUNG·Filed 2017·Granted Sep 25, 2018·4 cites·27 claims
- 3484US9524724B2Noise filling in perceptual transform audio codingFRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E V·Filed 2015·Granted Dec 20, 2016·5 cites·26 claims
- 3583US12380899B2Audio encoder, audio decoder, methods and computer program using jointly encoded residual signalsFRAUNHOFER GES FORSCHUNG·Filed 2023·Granted Aug 5, 2025·0 cites·40 claims
- 3683US9953656B2Audio encoder, audio decoder, methods and computer program using jointly encoded residual signalsFRAUNHOFER GES FORSCHUNG·Filed 2016·Granted Apr 24, 2018·3 cites·40 claims
- 3783US2025118316A1Apparatus and method for processing an audio signal using a harmonic post-filterFRAUNHOFER GES FORSCHUNG·Filed 2024·Application pending·0 cites
- 3882US9947329B2Apparatus and method for encoding or decoding an audio signal using a transient-location dependent overlapFRAUNHOFER GES FORSCHUNG·Filed 2015·Granted Apr 17, 2018·3 cites·41 claims
- 3981US12488804B2Frequency-domain audio coding supporting transform length switchingFRAUNHOFER GES FORSCHUNG·Filed 2023·Granted Dec 2, 2025·0 cites·11 claims
- 4081US12230286B2Decoder for decoding an encoded audio signal and encoder for encoding an audio signalFRAUNHOFER GES FORSCHUNG·Filed 2023·Granted Feb 18, 2025·0 cites·16 claims
- 4181US10832694B2Apparatus and method for generating an encoded signal or for decoding an encoded audio signal using a multi overlap portionFRAUNHOFER GES FORSCHUNG·Filed 2019·Granted Nov 10, 2020·1 cites·20 claims
- 4280US12272365B2Apparatus and method for decoding an encoded audio or image signal using an auxiliary window functionFRAUNHOFER GES FORSCHUNG·Filed 2023·Granted Apr 8, 2025·0 cites·17 claims
- 4380US12249340B2Noise filling in multichannel audio codingFRAUNHOFER GES FORSCHUNG·Filed 2023·Granted Mar 11, 2025·0 cites·14 claims
- 4480US11727944B2Apparatus and method for stereo filling in multichannel codingFRAUNHOFER GES FORSCHUNG·Filed 2020·Granted Aug 15, 2023·1 cites·21 claims
- 4580US11521631B2Apparatus and method for selecting one of a first encoding algorithm and a second encoding algorithmFRAUNHOFER GES FORSCHUNG·Filed 2020·Granted Dec 6, 2022·1 cites·37 claims
- 4680US10847167B2Audio encoder, audio decoder and related methods using two-channel processing within an intelligent gap filling frameworkFRAUNHOFER GES FORSCHUNG·Filed 2018·Granted Nov 24, 2020·1 cites·22 claims
- 4780US10600428B2Audio encoder, audio decoder, method for encoding an audio signal and method for decoding an encoded audio signalFRAUNHOFER GES FORSCHUNG·Filed 2017·Granted Mar 24, 2020·3 cites·62 claims
- 4879US12190897B2Apparatus and method for processing an audio signal using a harmonic post-filterFRAUNHOFER GES FORSCHUNG·Filed 2023·Granted Jan 7, 2025·0 cites·25 claims
- 4979US12112765B2Audio encoder, audio decoder, method for encoding an audio signal and method for decoding an encoded audio signalFRAUNHOFER GES FORSCHUNG·Filed 2020·Granted Oct 8, 2024·1 cites·49 claims
- 5079US10332531B2Apparatus and method for decoding or encoding an audio signal using energy information values for a reconstruction bandFRAUNHOFER GES FORSCHUNG·Filed 2018·Granted Jun 25, 2019·1 cites·11 claims
Showing the top 50 of 166 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →