Pulse or digital communications – Synchronizers – Phase displacement – slip or jitter correction
Patent
1994-06-14
1996-08-06
Chin, Stephen
Pulse or digital communications
Synchronizers
Phase displacement, slip or jitter correction
331 34, 331177R, H03D 324
Patent
active
055442021
ABSTRACT:
Synchronization apparatus comprising a phase-locked loop for generating an output signal and for synchronizing the output signal to an input signal, characterized in that the apparatus comprises a controller for iteratively determining whether the output signal is synchronized to the input signal by the phase-locked loop and adjusting the frequency of the output signal to bring the output signal within the capture range of the phase-locked loop if the output signal is not synchronized to the input signal.
REFERENCES:
patent: 4890305 (1989-11-01), Devries
patent: 5254958 (1993-10-01), Flach et al.
patent: 5257294 (1993-10-01), Pinto et al.
patent: 5278874 (1994-01-01), Liu et al.
Henry Michael D.
Jackson Frederick S.
Leaver David
Wright-Boulton Neil
Chin Stephen
Dillon Andrew J.
International Business Machines - Corporation
Luu Huong
McKinley Martin J.
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