Patent · US Active

Hands-free telephony and in-vehicle communication

US8369901B2 · kind B2 · utility

3Cited by

5References

12Claims

0Family size

Assignee

Nuance Communications, Inc. · US

Inventors

Tim Haulick · Blaubeuren, DE
Bernd Iser · Ulm, DE
Gerhard Uwe Schmidt · Ulm, DE
Arthur Wolf · Neu-Ulm, DE

Key dates

Filing date	Aug 7, 2009
Grant date	Feb 5, 2013
Priority date	—
Expiry date	Jun 11, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG10L2021/02082
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

The present invention relates to a signal processing system, comprising a number of microphones and loudspeakers, a hands-free set configured to receive a telephone signal from a remote party and to transmit a microphone signal supplied by at least one of the microphones to the remote party; an in-vehicle communication system configured to receive a microphone signal supplied by at least one of the microphones; receive the telephone signal; amplify the microphone signal to obtain at least one first output signal; output the at least one first output signal and/or a second output signal corresponding to the telephone signal to at least one of the loudspeakers; and wherein the signal processing systems is configured to detect speech activity in the telephone signal and to control the in-vehicle communication system to reduce amplification of the microphone signal by a damping factor, if it is detected that speech activity is present in the telephone signal.

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