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. 12, 2020
Filed:
Dec. 16, 2018
Dolby International Ab, Amsterdam Zuidoost, NL;
Holger Hoerich, Fürth, DE;
Tobias Friedrich, Nuremberg, DE;
Dolby International AB, Amsterdam Zuidoost, NL;
Abstract
An encoder () comprises a core encoder () for encoding a low frequency component of the audio signal at the signal sampling rate (fs_in) and a spectral band replication-referred to as SBR-encoding unit () for determining a plurality of SBR parameters. A plurality of the SBR parameters is determined such that a high frequency component of the audio signal can be approximated based on the low frequency component of the audio signal and the plurality of SBR parameters. A multiplexer () is adapted to generate an overall bitstream comprising the core encoded bitstream, the plurality of SBR parameters and an indication of one or more SBR encoder settings applied by the SBR encoder (); wherein the generated overall bitstream does not indicate that the core encoded bitstream has been determined by encoding the low frequency component at the signal sampling rate (fs_in).