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:
Oct. 04, 2016
Filed:
Aug. 17, 2012
Jürgen Herre, Buckenhof, DE;
Johannes Hilpert, Nürnberg, DE;
Stefan Geyersberger, Würzburg, DE;
Andreas Hölzer, Erlangen, DE;
Claus Spenger, Nürnberg, DE;
Jürgen Herre, Buckenhof, DE;
Johannes Hilpert, Nürnberg, DE;
Stefan Geyersberger, Würzburg, DE;
Andreas Hölzer, Erlangen, DE;
Claus Spenger, Nürnberg, DE;
Abstract
In processing a multi-channel audio signal having at least three original channels, a first downmix channel and a second downmix channel are provided, which are derived from the original channels. For a selected original channel, channel side information are calculated such that a downmix channel or a combined downmix channel including the first and the second downmix channels, when weighted using the channel side information, results in an approximation of the selected original channel. The channel side information and the first and second downmix channels form output data to be transmitted to a decoder, which, in case of a low level decoder only decodes the first and second downmix channels or, in case of a high level decoder provides a full multi-channel audio signal based on the downmix channels and the channel side information.