Patent · US Active

Multilayer decoding using persistent bits

US8824543B2 · kind B2 · utility

7Cited by

7References

9Claims

0Family size

Assignee

Her Majesty the Queen in the Right of Canada, as represented by the Minister Industry, through the Communications Research Center Canada · CA

Inventors

Yiyan Wu · Ottawa, CA
Bo Rong · Beijing, CN
Gilles Gagnon · Repentigny, CA
Sébastien Laflèche · Gatineau, CA
Charles Nadeau · Gatineau, CA
Omneya Issa · Ottawa, CA
Hong Liu · Wanrong, TW
Wei Li · Trondheim, NO

Key dates

Filing date	Jun 17, 2011
Grant date	Sep 2, 2014
Priority date	—
Expiry date	Nov 9, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04N21/2343
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

The invention relates to a method of iterative multi-layer decoding of a multimedia communication signal, wherein persistent bits from various upper layers of the employed protocol stack are used in error correction decoding at a lower error-correction layer. The method includes saving persistent bits from successfully decoded FEC frames in memory, and using a subset of the saved bits in decoding of future frames. A smart controller is used to analyze frames for the presence and location of persistent bits, for saving thereof in memory, and for inserting saved persistent bits into a next frame at successive decoding iterations thereof.

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