Time-division switching unit

Details Time-division switching unit Time-division switching unit

H - Electricity

04

J

363/17

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

Patent

CA 1205587

ABSTRACT OF THE DISCLOSURE A time-division switching unit for connecting a desired channel of a desired one of a plurality of input highways to a desired channel of a desired one of a plurality of output highways is disclosed. A frame synchronization circuit of the time-division switching unit variably delays signals of the input highways within one channel period, writes the signals to a speech memory for each channel, modifies write addresses to the speech memory to attain frame synchronization, extracts frame synchronization signals of the respective highways from the input and output of the speech memory, and controls the amount of delay within one channel period and the amount of address modification by the extracted synchronization signals.

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