The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 14, 2011
Filed:
Dec. 21, 2005
Andreas Hölzer, Erlangen, DE;
Jürgen Herre, Buckenhof, DE;
Heiko Purnhagen, Sundbyberg, SE;
Kristofer Kjörling, Solna, SE;
Jonas Röden, Solna, SE;
Lars Villemoes, Järfälla, SE;
Jonas Engdegard, Stockholm, SE;
Jeroen Breebaart, Eindhoven, NL;
Erik Schuijers, Eindhoven, NL;
Werner Oomen, Eindhoven, NL;
Andreas Hölzer, Erlangen, DE;
Jürgen Herre, Buckenhof, DE;
Heiko Purnhagen, Sundbyberg, SE;
Kristofer Kjörling, Solna, SE;
Jonas Röden, Solna, SE;
Lars Villemoes, Järfälla, SE;
Jonas Engdegard, Stockholm, SE;
Jeroen Breebaart, Eindhoven, NL;
Erik Schuijers, Eindhoven, NL;
Werner Oomen, Eindhoven, NL;
Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung, e.V., Munich, DE;
Coding Technologies AB, Stockholm, SE;
Koninklijke Philips Electronics N.V., BA Eindhoven, NL;
Abstract
A parametric representation of a multi-channel audio signal describes the spatial properties of the audio signal well with compact side information when a coherence information, describing the coherence between a first and a second channel, is derived within a hierarchical encoding process only for channel pairs including a first channel having only information of a left side with respect to a listening position and including a second channel having only information from a right side with respect to a listening position. As within the hierarchical process the multiple audio channels of the audio signal are downmixed iteratively into monophonic channels, one can pick the relevant parameters from an encoding step involving only channel pairs carrying the information needed to describe the spatial properties of the multi-channel audio signal.