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.

Date of Patent:
Jun. 19, 2018

Filed:

Mar. 06, 2017
Applicant:

Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;

Inventors:

Sebastian Näslund, Solna, SE;

Volodya Grancharov, Solna, SE;

Tomas Jansson Toftgård, Uppsala, SE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10L 19/00 (2013.01); G10L 19/02 (2013.01); G10L 21/0388 (2013.01); G10L 19/028 (2013.01); G10L 25/21 (2013.01);
U.S. Cl.
CPC ...
G10L 19/0204 (2013.01); G10L 19/02 (2013.01); G10L 19/028 (2013.01); G10L 21/0388 (2013.01); G10L 25/21 (2013.01);
Abstract

Methods and arrangements in a codec for supporting bandwidth extension, BWE, of a harmonic audio signal. The method in the decoder part of the codec comprises receiving a plurality of gain values associated with a frequency band b and a number of adjacent frequency bands of band b. The method further comprises determining whether a reconstructed corresponding frequency band b' comprises a spectral peak. When the band b′ comprises a spectral peak, a gain value associated with the band b′ is set to a first value based on the received plurality of gain values; and otherwise the gain value is set to a second value based on the received plurality of gain values. The suggested technology enables bringing gain values into agreement with peak positions in a bandwidth extended frequency region.


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