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. 23, 2012
Filed:
Jan. 11, 2011
Max Neuendorf, Nuremberg, DE;
Bernhard Grill, Lauf, DE;
Ulrich Kraemer, Stuttgart, DE;
Markus Multrus, Nuremberg, DE;
Harald Popp, Tuchenbach, DE;
Nikolaus Rettelbach, Nuremberg, DE;
Frederik Nagel, Nuremberg, DE;
Markus Lohwasser, Hersbruck, DE;
Marc Gayer, Erlangen, DE;
Manuel Jander, Erlangen, DE;
Virgilio Bacigalupo, Nuremberg, DE;
Max Neuendorf, Nuremberg, DE;
Bernhard Grill, Lauf, DE;
Ulrich Kraemer, Stuttgart, DE;
Markus Multrus, Nuremberg, DE;
Harald Popp, Tuchenbach, DE;
Nikolaus Rettelbach, Nuremberg, DE;
Frederik Nagel, Nuremberg, DE;
Markus Lohwasser, Hersbruck, DE;
Marc Gayer, Erlangen, DE;
Manuel Jander, Erlangen, DE;
Virgilio Bacigalupo, Nuremberg, DE;
Abstract
An apparatus calculates a number of spectral envelopes to be derived by a spectral band replication (SBR) encoder, wherein the SBR encoder is adapted to encode an audio signal using a plurality of sample values within a predetermined number of subsequent time portions in an SBR frame extending from an initial time to a final time, the predetermined number of subsequent time portions being arranged in a time sequence given by the audio signal. The apparatus has a decision value calculator for determining a decision value, the decision value measuring a deviation in spectral energy distributions of a pair of neighboring time portions. The apparatus further has a detector for detecting a violation of a threshold by the decision value and a processor for determining a first envelope border between the pair of neighboring time portions when the violation of the threshold is detected.