Issued Patents All Time
Showing 176–200 of 205 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9401152 | System for maintaining reversible dynamic range control information associated with parametric audio coders | Jeffrey Riedmiller, Karl Jonas Roeden, Heiko Purnhagen, Vinay Melkote, Leif Sehlstrom | 2016-07-26 |
| 9245534 | Spectral translation/folding in the subband domain | Lars G. Liljeryd, Per Ekstrand, Fredrik Henn | 2016-01-26 |
| 9245533 | Enhancing performance of spectral band replication and related high frequency reconstruction coding | Lars G. Liljeryd, Per Ekstrand, Fredrik Henn | 2016-01-26 |
| 9117459 | Processing of audio signals during high frequency reconstruction | — | 2015-08-25 |
| 9082395 | Advanced stereo coding based on a combination of adaptively selectable left/right or mid/side stereo coding and of parametric stereo coding | Purnhagen Heiko, Pontus Carlsson | 2015-07-14 |
| 8935156 | Enhancing performance of spectral band replication and related high frequency reconstruction coding | Lars G. Liljeryd, Per Ekstrand, Fredrik Henn | 2015-01-13 |
| 8738369 | Enhancing performance of spectral band replication and related high frequency reconstruction coding | Lars G. Liljeryd, Per Ekstrand, Fredrik Henn | 2014-05-27 |
| 8693696 | Apparatus and method for generating a level parameter and apparatus and method for generating a multi-channel representation | Heiko Purnhagen, Lars Villemoes, Jonas Engdegard, Jonas Roeden | 2014-04-08 |
| 8687829 | Apparatus and method for multi-channel parameter transformation | Johannes Hilpert, Karsten Linzmeier, Juergen Herre, Ralph Sperschneider, Andreas Hoelzer +5 more | 2014-04-01 |
| 8543232 | Spectral translation/folding in the subband domain | Lars G. Liljeryd, Per Ekstrand, Fredrik Henn | 2013-09-24 |
| 8538031 | Method for representing multi-channel audio signals | Heiko Purnhagen, Lars Villemoes, Jonas Engdegard, Jonas Roeden | 2013-09-17 |
| 8532999 | Apparatus and method for generating a multi-channel synthesizer control signal, multi-channel synthesizer, method of generating an output signal from an input signal and machine-readable storage medium | Matthias Neusinger, Juergen Herre, Sascha Disch, Heiko Purnhagen, Jonas Engdegard +3 more | 2013-09-10 |
| 8515083 | Methods for improved performance of prediction based multi-channel reconstruction | Lars Villemoes, Heiko Purnhagen, Jonas Roeden, Jeroen Breebaart, Gerard Herman Hotho | 2013-08-20 |
| 8494863 | Audio encoder and decoder with long term prediction | Arijit Biswas, Heiko Purnhagen, Barbara Resch, Lars Villemoes, Per Hedelin | 2013-07-23 |
| 8346566 | Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks | Lars Villemoes | 2013-01-01 |
| 8255233 | Enhancing perceptual performance of SBR and related HFR coding methods by adaptive noise-floor addition and noise substitution limiting | Lars G. Liljeryd, Per Ekstrand, Frederik Henn | 2012-08-28 |
| 8223976 | Apparatus and method for generating a level parameter and apparatus and method for generating a multi-channel representation | Heiko Purnhagen, Lars Villemoes, Jonas Engdegard, Jonas Roeden | 2012-07-17 |
| 8175280 | Generation of spatial downmixes from parametric representations of multi channel signals | Lars Villemoes, Jeroen Breebaart | 2012-05-08 |
| 8145475 | Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks | Lars Villemoes | 2012-03-27 |
| RE43189 | Enhancing perceptual performance of SBR and related HFR coding methods by adaptive noise-floor addition and noise substitution limiting | Lars G. Liljeryd, Per Ekstrand, Frederik Henn | 2012-02-14 |
| 8108209 | Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks | Lars Villemoes | 2012-01-31 |
| 8036882 | Enhancing perceptual performance of SBR and related HFR coding methods by adaptive noise-floor addition and noise substitution limiting | Lars G. Liljeryd, Per Ekstrand, Fredrik Henn | 2011-10-11 |
| 8036881 | Enhancing perceptual performance of SBR and related HFR coding methods by adaptive noise-floor addition and noise substitution limiting | Lars G. Liljeryd, Per Ekstrand, Fredrik Henn | 2011-10-11 |
| 8036880 | Enhancing perceptual performance of SBR and related HFR coding methods by adaptive noise-floor addition and noise substitution limiting | Lars G. Liljeryd, Per Ekstrand, Fredrik Henn | 2011-10-11 |
| 7986789 | Method for representing multi-channel audio signals | Heiko Purnhagen, Lars Villemoes, Jonas Engdegard, Jonas Roeden | 2011-07-26 |