Room acoustics echo meter for voice terminals

Details Room acoustics echo meter for voice terminals Room acoustics echo meter for voice terminals

2007-01-30

2007-01-30

Pendleton, Brian T. (Department: 2615)

Electrical audio signal processing systems and devices

Dereverberators

C379S388020, C381S056000

Reexamination Certificate

active

10212968

ABSTRACT:
The present invention provides an indication to the user of a voice communication system that an echo at the user's location has been detected by the system. In response to receiving this indication of echo, users may take any of several actions to reduce the echo, such as changing the position of the microphone or changing their own position with respect to the microphone. The need for potentially expensive echo-canceling hardware and software is reduced because the actions to eliminate the echo are performed by the user. The echo detector in the present invention may be implemented as part of a voice terminal, or as part of a communication switch or server that is used in conjunction with a voice terminal.

REFERENCES:
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patent: 5570423 (1996-10-01), Walker et al.
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patent: 5970137 (1999-10-01), Le Damany et al.
patent: 5970154 (1999-10-01), Chen et al.
patent: 6507653 (2003-01-01), Romesburg
patent: 2003/0138117 (2003-07-01), Goff

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