Patent · US Active

Audio upmixer operable in prediction or non-prediction mode

US10475459B2 · kind B2 · utility

2Cited by

5References

16Claims

0Family size

Assignee

Dolby International AB · IE

Inventors

Heiko Purnhagen · Sundbyberg, SE
Pontus Carlsson · Bromma, SE
Lars Villemoes · Stockholm, SE

Key dates

Filing date	May 31, 2019
Grant date	Nov 12, 2019
Priority date	—
Expiry date	May 31, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH04S2400/01
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

The invention provides methods and devices for outputting a stereo audio signal having a left channel and a right channel. The apparatus includes a demultiplexer, decoder, and upmixer. The upmixer is configured operate either in a prediction mode or a non-prediction mode based on a parameter encoded in the audio bitstream.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.