Multiphase divider for P-PLL based serial link receivers

Details Multiphase divider for P-PLL based serial link receivers Multiphase divider for P-PLL based serial link receivers

2008-01-29

2008-01-29

Wells, Kenneth B. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Frequency or repetition rate conversion or control

C327S117000, C377S047000, C377S048000

Reexamination Certificate

active

11871578

ABSTRACT:
A multiphase divider includes a plurality of resetable dividers configured for performing resetable divider stages to a plurality of multiphase signals forming a plurality of divided multiphase signals having a monotonic increasing phase with equal spacing and an ideal duty cycle of 50%, wherein the plurality of divided multiphase signals have no phase ambiguity; and a reset signal generator configured for producing a plurality of periodic reset signals to the plurality of resetable dividers to enable the plurality of resetable dividers to divide the plurality of multiphase signals in a timely correct sequence to form the divided multiphase signal, the plurality of periodic reset signals being produced by a combinational network of the reset signal generator, the combinational network is configured for generating a number of pulses based on the plurality of multiphase signals and performing decimation stages to reduce the number of pulses within the pulse traces.

REFERENCES:
patent: 6894551 (2005-05-01), Johnson
patent: 7030674 (2006-04-01), Johnson
patent: 2006/0119408 (2006-06-01), Chan et al.

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