Pulse or digital communications – Synchronizers – Phase displacement – slip or jitter correction
Reexamination Certificate
2005-06-07
2005-06-07
Tran, Khai (Department: 2637)
Pulse or digital communications
Synchronizers
Phase displacement, slip or jitter correction
Reexamination Certificate
active
06904113
ABSTRACT:
The invention concerns a function taking place in a digital phase lock, when it is desired to exchange a synchronization signal supplied to the phase lock for another synchronization signal. Using a cut-off circuit, the phase difference between a selected reference signal and a signal formed by dividing from an oscillator signal is set with time constant accuracy at the setting value for the phase difference. The method according to the invention, then uses as phase setting value the current value of the phase difference obtained by cut-off connection. Thus, the method according to the invention begins using a reference signal-specific setting value instead of a fixed setting value. Since the setting value is determined adaptively in accordance with the signal of the synchronization source used at each time, no phase transfer will occur during the change.
REFERENCES:
patent: 5268655 (1993-12-01), Dong
patent: 5473533 (1995-12-01), Mengelt
patent: 5701602 (1997-12-01), Shimoda
patent: 5703914 (1997-12-01), Nakamura
patent: 5861842 (1999-01-01), Hitch et al.
patent: 0385134 (1990-09-01), None
patent: 0571853 (1993-12-01), None
Nokia Corporation
Squire Sanders & Dempsey L.L.P.
Tran Khai
LandOfFree
Control of phase locked loop during change of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control of phase locked loop during change of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control of phase locked loop during change of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3475908