Clock recovery method in digital signal sampling

Details Clock recovery method in digital signal sampling Clock recovery method in digital signal sampling

2005-02-15

2005-02-15

Le, Amanda T. (Department: 2634)

Pulse or digital communications

Synchronizers

Synchronizing the sampling time of digital data

C375S376000, C327S160000

Reexamination Certificate

active

06856659

ABSTRACT:
A clock recovery method in digital signal sampling wherein the clock is generated from a phase-locking loop or PLL which multiples a given frequency by a whole number. The method includes comparing the relative position of the signals with respect to the clock so as to determine whether a selected type of the clock transitions is in phase with the same type of signal transitions by: producing over a clock period several zones, one zone corresponding to the selected type of transitions; analysing the signal transitions relatively to the clock uplink or downlink transitions; cumulating in the corresponding zone the analysis results; determining on the basis of the accumulation whether the sampling clock frequency and/or phase needs to be modified or not. The invention is applicable to signals derived from graphics cards.

REFERENCES:
patent: 4280099 (1981-07-01), Rattlingourd
patent: 4352195 (1982-09-01), Dautremay et al.
patent: 4885554 (1989-12-01), Wimmer
patent: 5025461 (1991-06-01), Pauer
patent: 5404172 (1995-04-01), Berman et al.
patent: 5596372 (1997-01-01), Berman et al.
patent: 5642386 (1997-06-01), Rocco, Jr.
patent: 6226045 (2001-05-01), Vidovich
patent: 0020205 (1980-12-01), None
patent: 9345564 (1989-12-01), None
patent: 0614281 (1994-09-01), None
patent: 0812079 (1997-12-01), None
patent: 9119358 (1991-12-01), None
patent: WO 9119358 (1991-12-01), None

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