Temporary storage or specialized transmission of...

H - Electricity – 04 – M

Patent

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Details

H04M 1/725 (2006.01) H04M 11/04 (2006.01)

Patent

CA 2713433

A communication device contains multiple microphones that receive acoustic signals from a user and from the background. The acoustic signals from the user are enhanced using the background acoustic signals to reduce background noise. The enhanced signals are transmitted to an emergency network when an emergency call is made from the communication device. The raw signals are stored in the communication device for later retrieval or are transmitted simultaneously with the enhanced signals. The enhanced signals are transmitted using a circuit-switched voice mode while the raw signals are transmitted using a packet-switched voice mode.

L'invention porte sur un dispositif de communication qui contient de multiples microphones qui reçoivent des signaux acoustiques provenant d'un utilisateur et du fond sonore. Les signaux acoustiques provenant de l'utilisateur sont améliorés à l'aide des signaux acoustiques du fond sonore pour réduire le bruit de fond. Les signaux améliorés sont transmis à un réseau d'urgence lorsqu'un appel d'urgence est effectué à partir du dispositif de communication. Les signaux bruts sont stockés dans le dispositif de communication en vue d'une récupération ultérieure ou sont transmis simultanément avec les signaux améliorés. Les signaux améliorés sont transmis en utilisant un mode vocal à commutation de circuit tandis que les signaux bruts sont transmis en utilisant un mode vocal à commutation de paquet.

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