Patent · US Expired

Multi-channel signal encoding and decoding

US7346110B2 · kind B2 · utility

3Cited by

6References

17Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Tor Björn Minde · Luleå, SE
Arne Steinarson · Sollentuna, SE
Anders Uvliden · Lulekani, ZA

Key dates

Filing date	Aug 29, 2001
Grant date	Mar 18, 2008
Priority date	—
Expiry date	Dec 21, 2023

Classification

Technology area (CPC G)Physics
CPC primaryG10L19/12
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A multi-part fixed codebook includes both individual fixed codebooks for each channel and a shared fixed codebook. Although the shared fixed codebook is common to all channels, the channels are associated with individual lags. Furthermore, the individual fixed codebooks are associated with individual gains, and the individual lags are also associated with individual gains. The excitation from each individual fixed codebook is added to the corresponding excitation (a shared codebook vector, but individual lags and gains for each channel) from the shared fixed codebook.

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