Patent
1975-01-17
1976-06-08
Griffin, Robert L.
179 15AD, H04B 714
Patent
active
039626350
ABSTRACT:
A transmission system for pulse signals of fixed clock frequency with regenerative repeaters located in the transmission path, each being provided with a pulse regenerator and a clock extraction circuit recovering the clock frequency for the control of the pulse regenerator from the received pulse signals with the aid of a frequency selective circuit. The use of a special type of frequency selective circuit results, especially in transmission systems having a large number of regenerative repeaters, in a considerable reduction of the phase jitter of the recovered clock signal in the receiver without detrimentally influencing the acquisition of the clock frequency in the individual regenerative repeaters.
REFERENCES:
patent: 2662118 (1953-12-01), Schouten et al.
patent: 3085200 (1963-04-01), Goodall
patent: 3491298 (1970-01-01), Jager et al.
patent: 3593140 (1971-07-01), Kaneko
Cohen Simon L.
Griffin Robert L.
Ng Jin F.
Trifari Frank R.
U.S. Philips Corporation
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