HP

Heiko Purnhagen

DA Dolby International Ab: 267 patents #2 of 314Top 1%
DL Dolby Laboratories Licensing: 36 patents #48 of 815Top 6%
Fraunhofer: 18 patents #129 of 4,748Top 3%
Philips: 17 patents #152 of 7,731Top 2%
CA Coding Technologies Ab: 12 patents #5 of 33Top 20%
Koniniklijke Philips N.V.: 5 patents #1,464 of 7,486Top 20%
FE Friedrich-Alexander-Universität Erlangen-Nürnberg: 2 patents #34 of 311Top 15%
Robert Bosch Gmbh: 1 patents #10,465 of 19,740Top 55%
DL Dobly Laboratories Licensing: 1 patents #2 of 24Top 9%
AS Agere Systems: 1 patents #984 of 1,849Top 55%
📍 Sundbyberg, CA: #1 of 3 inventorsTop 35%
Overall (All Time): #1,425 of 4,157,543Top 1%
289
Patents All Time

Issued Patents All Time

Showing 1–25 of 289 patents

Patent #TitleCo-InventorsDate
12394424 Backward-compatible integration of high frequency reconstruction techniques for audio signals Kristofer Kjoerling, Lars Villemoes, Per Ekstrand 2025-08-19
12382234 Perceptual optimization of magnitude and phase for time-frequency and softmask source separation systems Aaron Master, Lie Lu 2025-08-05
12354612 Advanced stereo coding based on a combination of adaptively selectable left/right or mid/side stereo coding and of parametric stereo coding Pontus Carlsson, Kristofer Kjoerling 2025-07-08
12340819 Integration of high frequency audio reconstruction techniques Kristofer Kjoerling, Lars Villemoes, Per Ekstrand 2025-06-24
12334082 Advanced stereo coding based on a combination of adaptively selectable left/right or mid/side stereo coding and of parametric stereo coding Pontus Carlsson, Kristofer Kjoerling 2025-06-17
12334102 Integration of high frequency audio reconstruction techniques Kristofer Kjoerling, Lars Villemoes, Per Ekstrand 2025-06-17
12327566 Advanced stereo coding based on a combination of adaptively selectable left/right or mid/side stereo coding and of parametric stereo coding Pontus Carlsson, Kristofer Kjoerling 2025-06-10
12327565 Advanced stereo coding based on a combination of adaptively selectable left/right or mid/side stereo coding and of parametric stereo coding Pontus Carlsson, Kristofer Kjoerling 2025-06-10
12322399 MDCT-based complex prediction stereo coding Pontus Carlsson, Lars Villemoes 2025-06-03
12322404 Methods and devices for encoding and/or decoding immersive audio signals David S. McGrath, Michael Eckert, Stefan Bruhn 2025-06-03
12308033 Advanced stereo coding based on a combination of adaptively selectable left/right or mid/side stereo coding and of parametric stereo coding Pontus Carlsson, Kristofer Kjoerling 2025-05-20
12308040 Backward-compatible integration of harmonic transposer for high frequency reconstruction of audio signals Lars Villemoes, Per Ekstrand 2025-05-20
12296028 Integration of high frequency reconstruction techniques with reduced post-processing delay Kristofer Kjoerling, Lars Villemoes, Per Ekstrand 2025-05-13
12300258 Integration of high frequency reconstruction techniques with reduced post-processing delay Kristofer Kjoerling, Lars Villemoes, Per Ekstrand 2025-05-13
12300263 Integration of high frequency audio reconstruction techniques Kristofer Kjoerling, Lars Villemoes, Per Ekstrand 2025-05-13
12293768 Audio decoder for interleaving signals Kristofer Kjorling, Harald Mundt, Karl Jonas Roeden, Leif Sehlstrom 2025-05-06
12288564 Backward-compatible integration of high frequency reconstruction techniques for audio signals Kristofer Kjoerling, Lars Villemoes, Per Ekstrand 2025-04-29
12260869 Decoding audio bitstreams with enhanced spectral band replication metadata in at least one fill element Lars Villemoes, Per Ekstrand 2025-03-25
12243542 Reconstruction of audio scenes from a downmix Toni Hirvonen, Leif Jonas Samuelsson, Lars Villemoes 2025-03-04
12243543 Integration of high frequency reconstruction techniques with reduced post-processing delay Kristofer Kjoerling, Lars Villemoes, Per Ekstrand 2025-03-04
12243549 Method, apparatus and systems for audio decoding and encoding Kristofer Kjorling, Alexander Stahlmann, Jens Popp, Karl Jonas Roeden 2025-03-04
12236961 Audio encoder and decoder Leif Jonas Samuelsson 2025-02-25
12223968 Multi-lag format for audio coding Lars Villemoes, Heidi-Maria Lehtonen, Per Hedelin 2025-02-11
12223966 Selectable linear predictive or transform coding modes with advanced stereo coding Pontus Carlsson, Kristofer Kjoerling 2025-02-11
12211513 Integration of high frequency audio reconstruction techniques Kristofer Kjoerling, Lars Villemoes, Per Ekstrand 2025-01-28