Electrical audio signal processing systems and devices – Feedback suppression
Reexamination Certificate
2006-03-07
2006-03-07
Young, W. R. (Department: 2655)
Electrical audio signal processing systems and devices
Feedback suppression
C381S095000, C381S096000, C381S086000, C704S270000
Reexamination Certificate
active
07010129
ABSTRACT:
A device for operating voice-controlled systems, such as communication and/or intercommunication systems in motor vehicles, includes a plurality of microphones and at least one loudspeaker. Voice signals received by the microphones are transmitted to the at least one loudspeaker. The voice signals are subjected to a low-value frequency shift before being transmitted to the loudspeaker(s) or to the input of a voice-controlled device to thereby suppress feedback.
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Schaaf Klaus
Schultz Juergen
Thoermann Volker
Albertalli Brian L.
Kenyon & Kenyon
Volkswagen AG
Young W. R.
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