Time-division multiplexing transmission system

Details Time-division multiplexing transmission system Time-division multiplexing transmission system

H - Electricity

04

J

H04J 3/06 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 2237984

In a transmitter, at least some of synchronization patterns in a signal having frame structure are inverted in a bit inverting circuit, and a plurality of channels of signals which include a signal having the inverted synchronization patterns are multiplexed and transmitted in a time-division manner. In a receiver, the time-division multiplexed channels are demultiplexed into indivisual channels. Then, frame synchronization is performed on the basis of the channel having the inverted synchronization patterns among the demultiplexed channels. With the frame synchronized channel as a reference, the remaining channels are identified. There is no need to provide a synchronization circuit in each channel, and the size of the system is not increased.

Dans un émetteur, certaines des configurations de synchronisation incorporées à un signal à trame structurée sont inversées par un circuit inverseur de bits et une pluralité de canaux dans lesquels un signal contenant ces configurations de synchronisation inversées est incorporé aux signaux transmis, lesquels sont transmis en multiplexage temporel. Dans un récepteur, les canaux en multiplexage temporel sont démultiplexés en canaux individuels. La synchronisation de trame est alors effectuée d'après le canal contenant les configurations de synchronisation inversées parmi les canaux démultiplexés. Les autres canaux sont identifiés à l'aide du canal de synchronisation de trame utilisé comme référence. Il n'est pas nécessaire d'avoir recours à un circuit de synchronisation pour chaque canal, de sorte que la taille du système reste inchangée.

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