Pulse or digital communications – Synchronizers – Phase displacement – slip or jitter correction
Patent
1997-02-27
1999-06-01
Pham, Chi H.
Pulse or digital communications
Synchronizers
Phase displacement, slip or jitter correction
375355, 375354, 370503, H03D 324
Patent
active
059094737
ABSTRACT:
In a bit synchronizing circuit, the oscillating operation is prevented in the phase synchronizing stage such that even the reception data including a phase variation such as a jitter component can be appropriately reproduced. A phase comparator compares the phase of reception data with that of each of the n-phase clock signals to produce clock phase information. An averaging circuit obtains mean value data of the clock phase information. D-type flip flop circuits achieve sampling operations of the reception data and latch therein n sampling data items to be thereafter outputted. A data selector selects one of the n sampling data items according to the mean value data of clock phase information and delivers therefrom the selected item as selection data. A clock selector selects one of the n-phase clock signals in association with the average data of clock phase information and then outputs the selected item as an extraction clock signal.
REFERENCES:
patent: 4841551 (1989-06-01), Avaneas
patent: 5022057 (1991-06-01), Nishi et al.
patent: 5034967 (1991-07-01), Cox et al.
patent: 5052026 (1991-09-01), Walley
patent: 5185768 (1993-02-01), Ferraiolo et al.
patent: 5294844 (1994-03-01), Motoike
patent: 5432823 (1995-07-01), Gasboro et al.
patent: 5533072 (1996-07-01), Georgiou et al.
patent: 5638411 (1997-06-01), Oikawa
patent: 5642387 (1997-06-01), Fukasawa
patent: 5657318 (1997-08-01), Ohmori et al.
Aoki Yasushi
Baba Mitsuo
Katayama Atsushi
Bayard Emmanuel
NEC Corporation
Pham Chi H.
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