Intelligent acoustic systems peripheral

H - Electricity – 04 – R

Patent

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Details

H04R 3/00 (2006.01) G06F 3/16 (2006.01) G06F 9/44 (2006.01) H04B 3/23 (2006.01) H04R 5/02 (2006.01) H04M 1/60 (2006.01)

Patent

CA 2213297

A speaker/microphone peripheral includes a digital-signal-processor (DSP) based acoustic echo canceler and supports a plurality of modes of operations. One mode is a video/telecommunications mode. In this mode, the acoustic echo canceler is enabled and the speaker/microphone peripheral provides a monaural dual speaker and microphone for use in video, internet telephony, etc., communications. Another mode of operation is a multi-media, or wide-band stereo, mode. In this stereo mode, the acoustic echo canceler is disabled and the stereo loudspeakers provides high fidelity stereo output signals. In addition, in this latter arrangement an optional sub-woofer may be additionally coupled to the stereo loudspeakers.

L'invention est un périphérique haut-parleur-microphone comportant un éliminateur d'échos acoustiques à processeur à signaux numériques à plusieurs modes de fonctionnement. L'un de ces modes est le mode vidéo-télécommunications. Dans ce mode, l'éliminateur d'échos acoustiques est en fonction et le périphérique de l'invention sert de double haut-parleur monophonique et de microphone pour les transmissions vidéo, les transmissions sur l'Internet, les communications téléphoniques, etc. Il y a également un mode de fonctionnement multimédia qui est un mode stéréophonique à large bande. Dans ce mode, l'éliminateur d'échos acoustiques est hors fonction et les haut-parleurs produisent des sons stéréophoniques haute fidélité. De plus, dans ce même mode, un sub-woofer peut être couplé aux haut-parleurs stéréophoniques.

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