Inventor

PURNHAGEN HEIKO

SE292 patents

⚠️ This page may combine multiple inventors who share the name “PURNHAGEN HEIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PURNHAGEN HEIKO

DOLBY INT AB

Decoding audio bitstreams with enhanced spectral band replication metadata in at least one fill element

Backward-compatible integration of high frequency reconstruction techniques for audio signals

Backward-compatible integration of harmonic transposer for high frequency reconstruction of audio signals

Decoding audio bitstreams with enhanced spectral band replication metadata in at least one fill element

Audio upmixer operable in prediction or non-prediction mode

Decoding audio bitstreams with enhanced spectral band replication metadata in at least one fill element

Advanced stereo coding based on a combination of adaptively selectable left/right or mid/side stereo coding and of parametric stereo coding

Decoding audio bitstreams with enhanced spectral band replication metadata in at least one fill element

Decoding audio bitstreams with enhanced spectral band replication metadata in at least one fill element

Decoding audio bitstreams with enhanced spectral band replication metadata in at least one fill element

Advanced stereo coding based on a combination of adaptively selectable left/right or mid/side stereo coding and of parametric stereo coding

Prediction-based FM stereo radio noise reduction

Backward-compatible integration of high frequency reconstruction techniques for audio signals

Decoding audio bitstreams with enhanced spectral band replication metadata in at least one fill element

Audio decoder for audio channel reconstruction

Audio encoder with selectable L/R or M/S coding

Audio encoder and decoder

Advanced stereo coding based on a combination of adaptively selectable left/right or mid/side stereo coding and of parametric stereo coding

Decoding audio bitstreams with enhanced spectral band replication metadata in at least one fill element

Audio upmixer operable in prediction or non-prediction mode

Audio decoder for audio channel reconstruction

Decoding audio bitstreams with enhanced spectral band replication metadata in at least one fill element

Audio decoder for audio channel reconstruction

Audio encoder and decoder

Reconstruction of audio scenes from a downmix

Audio encoder and decoder

MDCT-based complex prediction stereo coding

Non-uniform parameter quantization for advanced coupling

Audio decoder with core decoder and surround decoder

Audio encoder and decoder

CODING TECH AB

Stereo compatible multi-channel audio coding

Multi parametrisation based multi-channel reconstruction

Method for representing multi-channel audio signals

Advanced methods for interpolation and parameter signalling

Audio coding using de-correlated signals

PURNHAGEN HEIKO

Apparatus and method for generating a level parameter and apparatus and method for generating a multi-channel representation

Apparatus and method for generating a level parameter and apparatus and method for generating a multi-channel representation

Method for representing multi-channel audio signals

DOLBY LABORATORIES LICENSING CORP

Spatial audio signal manipulation

System for maintaining reversible dynamic range control information associated with parametric audio coders

Coding of a sound field signal

FRAUNHOFER GES FORSCHUNG

Audio encoder, audio decoder and related methods for processing multi-channel audio signals using complex prediction

Apparatus and method for generating multi-channel synthesizer control signal and apparatus and method for multi-channel synthesizing

ENGDEGARD JONAS

Audio signal of an FM stereo radio receiver by using parametric stereo

Apparatus and method for synthesizing an output signal

KONINKL PHILIPS ELECTRONICS NV

Audio signal encoding or decoding

BISWAS ARIJIT

Audio encoder and decoder with long term prediction

HILPERT JOHANNES

Apparatus and method for multi-channel parameter transformation

VAN LOON MACHIEL WILLEM

Method, device, encoder apparatus, decoder apparatus and audio system

VILLEMOES LARS FALCK

Audio signal encoding or decoding