Patent · US Active

MDCT-based complex prediction stereo coding

US9892736B2 · kind B2 · utility

2Cited by

5References

14Claims

0Family size

Assignee

Dolby International AB · IE

Inventors

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

Key dates

Filing date	Jul 7, 2015
Grant date	Feb 13, 2018
Priority date	—
Expiry date	Jul 7, 2035

Classification

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

Abstract

The invention provides methods and devices for stereo encoding and decoding using complex prediction in the frequency domain. In one embodiment, a decoding method, for obtaining an output stereo signal from an input stereo signal encoded by complex prediction coding and comprising first frequency-domain representations of two input channels, comprises the upmixing steps of:

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