CA2918804A1

5G,4G,3G

Title

Apparatus and method for decoding or encoding an audio signal using energy information values for a reconstruction band

Application Number:

CA20142918804

Publication Date:

29-01-2015

Current Assignee:

Family ID:

Application Date:

15-07-2014

Declaring Company:

Publication Country:

US

Priority Date:

22-07-2013

Title

Apparatus and method for decoding or encoding an audio signal using energy information values for a reconstruction band

Application Number:

CA20142918804

Family ID:

Publication Country:

US

Publication Date:

29-01-2015

Application Date:

15-07-2014

Priority Date:

22-07-2013

Current Assignee:

Declaring Company:

Abstract  Abstract

An apparatus for decoding an encoded audio signal comprising an encoded representation of a first set of first spectral portions and an encoded representation of parametric data indicating spectral energies for a second set of second spectral portions comprises: an audio decoder (900) for decoding the encoded representation (901b) of the first set of the first spectral portions to obtain a first set of first spectral portions (904) and for decoding the encoded representation of the parametric data to obtain a decoded parametric data (902) for the second set of second spectral portions indicating for individual reconstruction bands individual energies; a frequency regenerator (906) for reconstructing spectral values in a reconstruction band (920) comprising a second spectral portion (922 923) using a first spectral portion of the first set of the first spectral portions and an individual energy for the reconstruction band the reconstruction band comprising a first spectral portion (921) and the second spectral portion; wherein the frequency regenerator (906) is configured for determining (912) a survive energy information comprising an accumulated energy of the first spectral portion having frequency values in the reconstruction band determining (918) a tile energy information of further spectral portions (922 923) of the reconstruction band (920) for frequency values different from the first spectral portion (921) having frequencies in the reconstruction band (920) wherein the further spectral portions (922 923) are to be generated by frequency regeneration using a first spectral portion (302) different from the first spectral portion (921 306) in the reconstruction band; determining (914) a missing energy in the reconstruction band (920) using the individual energy for the reconstruction band and the survive energy information; and adjusting (916) the further spectral portions in the reconstruction band based on the missing energy information and the tile energy information.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.