Patent · US Expired

Rejected frame concealment

US5572622A · kind A · utility

28Cited by

4References

18Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Karl T. Wigren · Uppsala, SE
Rolf A. Bergstrom · Ramnås, SE
Fredrik Jansson · Sundbyberg, SE

Key dates

Filing date	Jun 10, 1994
Grant date	Nov 5, 1996
Priority date	—
Expiry date	Jun 10, 2014

Classification

Technology area (CPC G)Physics
CPC primaryG10L25/78
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method and apparatus for improving the decoding of audio signals is disclosed. In a receiver of a frame based radio communication system, rejected frames are concealed according to a first algorithm if the last accepted frame was a speech frame and according to a second algorithm if the last accepted frame was a frame containing background sounds.

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