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:
Dec. 10, 2013
Filed:
Dec. 22, 2011
Frederik Nagel, Nuremberg, DE;
Markus Multrus, Nuremberg, DE;
Sascha Disch, Fuerth, DE;
Jeremie Lecomte, Fuerth, DE;
Christian Ertel, Schwaig, DE;
Patrick Warmbold, Emskirchen, DE;
Frederik Nagel, Nuremberg, DE;
Markus Multrus, Nuremberg, DE;
Sascha Disch, Fuerth, DE;
Jeremie Lecomte, Fuerth, DE;
Christian Ertel, Schwaig, DE;
Patrick Warmbold, Emskirchen, DE;
Abstract
A bandwidth extension encoder for encoding an audio signal has a signal analyzer, a core encoder, a parameter calculator, and a window controller. The audio signal has a low frequency signal having a core frequency band and a high frequency signal having an upper frequency band. The signal analyzer is configured for analyzing the audio signal, the audio signal having a block of audio samples, the block having a specified length in time. The signal analyzer is furthermore configured for determining from a plurality of analysis windows an analysis window to be used for performing a bandwidth extension in a bandwidth extension decoder. The core encoder is configured for encoding the low frequency signal to acquire an encoded or frequency signal. The parameter calculator is configured for calculating bandwidth extension parameters from the high frequency signal. The window controller is configured to provide control information indicating analysis window functions.