Fsk data communications using voice modem

H - Electricity – 04 – L

Patent

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Details

H04L 27/10 (2006.01) H04M 11/06 (2006.01)

Patent

CA 2621294

A method for transferring data over a communication link using a data rate and a voice modem not designed to provide communications at the data rate, includes generating, in a processor, a modulated FSK signal from an outgoing data stream. The voice modem, in playback mode, plays the modulated FSK signal over the communication link. The voice modem, in record mode, receives voice data from the communication link and sends the voice data to the processor, which demodulates any FSK signal that is present in the voice wave data to produce an incoming data stream.

La présente invention se rapporte à un procédé permettant de transférer des données via une liaison de communication, par l'intermédiaire d'un débit binaire et d'un modem vocal qui n'est pas conçu pour assurer des communications audit débit binaire. Le procédé selon invention consiste à générer, dans un processeur, un signal FSK modulé à partir d'un flux de données sortant. Le modem vocal, en mode lecture, lit le signal FSK modulé via ladite liaison de communication. Le modem vocal, en mode enregistrement, reçoit des données vocales de la liaison de communication, et envoie lesdites données vocales au processeur, lequel démodule tout signal FSK présent dans les données d'ondes vocales, afin de produire un flux de données entrant.

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