Patent · US Active

Echo cancellation and noise reduction adaptation during ringing signal playback

US8054966B2 · kind B2 · utility

1Cited by

2References

11Claims

0Family size

Assignee

Sony Ericsson Mobile Communications AB · SE

Inventors

Fredrik Stenmark · Waterloo, CA
Per Hiselius · Lund, SE
Stefan Gustavsson · Helsingborg, SE

Key dates

Filing date	Jul 21, 2006
Grant date	Nov 8, 2011
Priority date	—
Expiry date	Mar 4, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH04M9/082
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A communication device is provided that includes a speaker for outputting a ringing signal, a microphone for receiving the ringing signal, and logic configured to analyze the spectral content of the received ringing signal and adjust noise reduction parameters and echo cancellation parameters based on the analyzed spectral content of the received ringing signal.

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