Conference terminal with echo reduction for a voice...

Details Conference terminal with echo reduction for a voice... Conference terminal with echo reduction for a voice...

2007-01-11

2010-12-14

Smith, Creighton (Department: 2614)

Telephonic communications

Echo cancellation or suppression

Disable or inhibit function

C709S204000, C455S518000

Reexamination Certificate

active

07853007

ABSTRACT:
A conference terminal for a digital voice conference system comprises a first sound transducer means, which is implemented to generate a microphone signal from an acoustic signal, a second sound transducer means, which is implemented to generate an acoustic signal from a loudspeaker signal, a connecting means, which is implemented to enable a connection between conference terminal and a conference central unit, to receive a composite conference signal from the conference central unit, and a means for echo suppression, which is implemented to combine the microphone signal or a signal derived therefrom in a noise suppression means with a composite conference signal in a listening operation of the conference terminal, such that a loudspeaker signal results, in which the acoustic signal, on which the microphone signal is based, is reduced. Such a conference terminal allows the suppression of a remote own echo and a remote foreign echo, whereby digital wireless voice conference systems can be realized, which ensure high voice quality and noise immunity with minimum wiring effort.

REFERENCES:
patent: 5062102 (1991-10-01), Taguchi
patent: 5404397 (1995-04-01), Janse et al.
patent: 5600714 (1997-02-01), Eppler, Jr. et al.
patent: 6215880 (2001-04-01), Hasegawa
patent: 6404886 (2002-06-01), Yoshida et al.
patent: 6408327 (2002-06-01), McClennon et al.
patent: 2004/0116130 (2004-06-01), Seligmann
patent: 0191492 (1986-08-01), None
patent: 10136100 (1998-05-01), None
patent: WO9604744 (1996-02-01), None
“Canadian Office Action mailed May 14, 2009,” (2 pgs.).

Affiliated with

Also associated with

Rating

Conference terminal with echo reduction for a voice... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Conference terminal with echo reduction for a voice..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Conference terminal with echo reduction for a voice... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4221494