Patent · US Active

Method and arrangement for providing a backwards compatible payload format

US9454973B2 · kind B2 · utility

0Cited by

10References

10Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Tomas Frankkila · Luleå, SE
Stefan Bruhn · Sollentuna, SE
Daniel Enström · Luleå, SE

Key dates

Filing date	Apr 7, 2010
Grant date	Sep 27, 2016
Priority date	—
Expiry date	Dec 21, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04N21/8106
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

In a method of providing a backward and forward compatible speech codec payload format, the following steps are included: providing S10 an RTP package; including S20 payload according to a first codec into the provided RTP package, and appending S50 payload according to a second codec into the provided RTP package. In addition, at least one unused bit is located S30 in the included first codec payload, and the located at least one unused bit is designated S40 as a codec compatibility bit. Finally, the designated at least one codec compatibility bit is utilized S60 to provide an indication of the presence of the appended second codec payload.

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