Clock and data recovery circuits using random edge sampling...

Details Clock and data recovery circuits using random edge sampling... Clock and data recovery circuits using random edge sampling...

2011-06-07

2011-06-07

Payne, David C. (Department: 2611)

Pulse or digital communications

Synchronizers

Synchronizing the sampling time of digital data

Reexamination Certificate

active

07957497

ABSTRACT:
A clock and data recovery (CDR) circuit comprises a data sampling unit which latches serial data input in response to data clock signals, and outputs a plurality of sampling data, the data clock signals maintaining a constant phase difference and having mutually different phases, an edge sampling unit which outputs an edge sampling signal generated by sampling edge information of the serial data in response to a selection edge clock signal, the selection edge clock signal being randomly selected from among a plurality of edge clock signals, a data selection unit which selects at least two consecutive sampling data from among the plurality of sampling data, and a decoding unit which performs a logical operation of the sampling data selected by the data selection unit and the edge sampling signal.

REFERENCES:
patent: 5539784 (1996-07-01), Brauns et al.
patent: 6737904 (2004-05-01), Butaud et al.
patent: 7079589 (2006-07-01), Maksimovic et al.
patent: 7522687 (2009-04-01), Cranford et al.
patent: 2003/0123498 (2003-07-01), Ishino
patent: 2004/0208270 (2004-10-01), Schmatz et al.
patent: 2006/0050827 (2006-03-01), Saeki et al.
patent: 2001-136157 (2001-05-01), None
patent: 2004-242243 (2004-08-01), None
patent: 2005-086789 (2005-03-01), None
patent: 10-2003-0018189 (2003-03-01), None
patent: 10-2004-0004838 (2004-01-01), None
patent: 1020040075243 (2004-08-01), None

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