Reduced-size integrated phase-locked loop

Details Reduced-size integrated phase-locked loop Reduced-size integrated phase-locked loop

2005-09-13

2005-09-13

Nguyen, Linh My (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

C327S156000

Reexamination Certificate

active

06943598

ABSTRACT:
A phase-locked loop comprising a comparator generating a control voltage depending on the phase-shift between a reference signal and a feedback signal, an oscillator controlled by the control voltage, generating several phase-shifted signals of same period, one of which forms the output signal of the phase-locked loop, a multiplexer capable of providing any of the phase-shifted signals to the input of a divider, the output of which forms the feedback signal, and a means controlling the multiplexer to successively provide fractions of the phase-shifted signals, so that the divider receives a signal having an average period equal to a real fraction of the period of the phase-shifted signals.

REFERENCES:
patent: 6590376 (2003-07-01), Bammert et al.
patent: 2001/0005408 (2001-06-01), Neukom
patent: 2001/0036239 (2001-11-01), Oka
patent: 2002/0033737 (2002-03-01), Staszewski et al.

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