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:
Jan. 06, 2015
Filed:
Sep. 14, 2010
Volodya Grancharov, Solna, SE;
Stefan Bruhn, Sollentuna, SE;
Harald Pobloth, Täby, SE;
Sigurdur Sverrisson, Kungsängen, SE;
Volodya Grancharov, Solna, SE;
Stefan Bruhn, Sollentuna, SE;
Harald Pobloth, Täby, SE;
Sigurdur Sverrisson, Kungsängen, SE;
Telefonaktiebolaget L M Ericsson (publ), Stockholm, SE;
Abstract
Estimation of a high band extension of a low band audio signal includes the following steps: extracting (S) a set of features of the low band audio signal; mapping (S) extracted features to at least one high band parameter with generalized additive modeling; frequency shifting (S) a copy of the low band audio signal into the high band; controlling (S) the envelope of the frequency shifted copy of the low band audio signal by said at least one high band parameter.