Digital circuit extracting synchronism signals from a serial...

Details Digital circuit extracting synchronism signals from a serial... Digital circuit extracting synchronism signals from a serial...

H - Electricity

04

L

331/58

H04L 7/02 (2006.01) H04L 7/033 (2006.01)

Patent

CA 1278049

ABSTRACT A digital circuit is used to extract synchronization signals from a serial flow of coded data, by a routine which uses a phase locked loop, different types of level transitions of the received signal being separately exam- ined for the presence of phase differences compared to specific reference phases established in an initialization step. A composite error signal obtained from the compari- son is used for correcting the frequency of a local signal generator in the phase looked loop.

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