Noncompressed voice and data communication over modem for a...

G - Physics – 06 – F

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Details

G06F 13/14 (2006.01) H04L 12/64 (2006.01) H04L 27/34 (2006.01) H04M 3/53 (2006.01) H04M 3/533 (2006.01) H04M 7/00 (2006.01) H04M 11/06 (2006.01) G10L 19/04 (2006.01)

Patent

CA 2126927

The voice over data component of a personal communications system enables the operator to simultaneously transmit voice and data communication to a remote site. This voice over data function directly encodes digitized voice samples onto the carrier using quadrature amplitude modulation to transmit multiple bits of the voice sample for every baud. The system also allocates selected bauds of the carrier to voice and to data so the voice over data may be transmitted using the same allocated bandwidth. The system may also dynamically reallocate the bandwidth over the telephone line depending on the demands of the voice grade digitized signal.

La fonction de surimposition de paroles sur des données d'un système de communication permet à l'opérateur de transmettre simultanément des communications de données et de paroles à un poste éloigné. Cette fonction de surimposition code directement des échantillons numériques de paroles sur un support au moyen de la modulation d'amplitude en quadrature pour transmettre une multitude de bits de l'échantillon de paroles pour chaque baud. Le système attribue également des bauds choisis du support aux paroles et aux données de sorte que les paroles surimposées sur des données puissent être transmises au moyen de la même largeur de bande. Le système peut également faire une répartition dynamique de la largeur de bande au moyen d'une ligne téléphonique selon que l'on utilise un signal numérique de voie téléphonique.

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