Atm transmission method with mute compression control...

H - Electricity – 04 – L

Patent

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H04L 12/56 (2006.01) H04L 12/64 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 2204024

An ATM transmission system which transmits voice data in an asynchronous transfer mode (ATM), in which a silent section of a call is detected and the silent section is not physically sent as an ATM cell through a transmission line, realizing compression of the silent section on the transmission line. The sending side detects the silent section, generates voice/silence information, and generates a silence starting cell and a silence ending cell. The receiving side generates silent sections at regular time intervals upon receiving the silence starting cell and returns to its normal voice cell receiving state upon receiving the silence ending cell. Since the silent sections are not transmitted, the number of occupied bands is reduced on the transmission line and the efficiency of the transmission line can be improved.

Système de transmission ATM transmettant des données vocales en mode de transfert asynchrone (ATM) et permettant de détecter une partie silencieuse d'un appel et de ne pas la transmettre physiquement sous forme de cellule ATM sur la ligne de transmission en la comprimant sur ladite ligne. Le côté émetteur détecte la partie silencieuse, produit une information voix/silence et génère une cellule de début de silence et une cellule de fin de silence. Le côté récepteur produit des parties silencieuses à intervalles réguliers sur réception de la cellule de début de silence et reprend son état normal de réception de cellules de voix sur réception de la cellule de fin de silence. Comme les parties silencieuses ne sont pas transmises, le nombre de bandes occupées est réduit sur la ligne de transmission, dont l'efficacité peut ainsi être améliorée.

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