Timing signal synchronization device

Details Timing signal synchronization device Timing signal synchronization device

H - Electricity

04

L

340/205

H04L 7/00 (2006.01) H04L 7/027 (2006.01) H04L 27/227 (2006.01)

Patent

CA 1164549

ABSTRACT OF THE DISCLOSURE A device for the synchronization of a local timing signal to permit the demodulation of a differential phase-modulated carrier in synchronous data transmission systems. On the basis of a limited signal of the modulated carrier and a timing signal whose frequency is equal to quadruple that of the carrier, a logic element circuit comprising EXCLUSIVE-OR gates and synchronized flip-flops carries out a sequence of correlations and supplies pulses representative of the position of the phase jumps. These pulses are only used for bringing about the phase and frequency dependency of the local timing signal.

352981

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