Pulse or digital communications – Synchronizers – Synchronizing the sampling time of digital data
Reexamination Certificate
2006-11-28
2006-11-28
Ghayour, Mohammed (Department: 2611)
Pulse or digital communications
Synchronizers
Synchronizing the sampling time of digital data
C375S316000, C375S354000, C375S373000, C327S141000, C327S144000
Reexamination Certificate
active
07142621
ABSTRACT:
There is disclosed a data recovery (DR) circuit including an over sampling (OS) circuit, a transition detection (TD) circuit and a sample selection/data alignment (SSDA) circuit. A multiphase clock generating circuit delivering n phases is coupled to each of these circuits. The OS circuit over samples the received digital data stream and produces n sampled signals at each clock period. The TD circuit is configured to detect a data transition (if any) and to generate n select signals, only one of which is active and represents a determined delay with respect to the transition position, indicating thereby which over sampled signal is the best to be retained. The SSDA circuit is configured to generate the recovered (retimed) data signal that is aligned with a predefined phase of the multiphase clock signal. The data recovery circuit is well adapted to high speed serial data communications between integrated circuits/systems on digital networks.
REFERENCES:
patent: 5587709 (1996-12-01), Jeong
patent: 5892631 (1999-04-01), Howell et al.
patent: 6229861 (2001-05-01), Young
patent: 6266799 (2001-07-01), Lee et al.
patent: 6868134 (2005-03-01), Yoshizaki
patent: 2002/0056069 (2002-05-01), Abe et al.
patent: 2002/0133730 (2002-09-01), Zabinski et al.
patent: 2003/0061564 (2003-03-01), Maddux
Vallet et al., IBM filed concurrently herewith, entitled “Sample Selection and Data Alignment Circuit”.
Vallet et al., IBM filed concurrently herewith, entitled “Transition Detection, Validation and Memorization Circuit”.
Hanviller Philippe
Vallet Vincent
C. Li Todd M.
Ghayour Mohammed
Malek Leila
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