Ring oscillator using analog parallelism

Details Ring oscillator using analog parallelism Ring oscillator using analog parallelism

2008-06-11

2011-12-20

Chang, Joseph (Department: 2817)

Oscillators

Ring oscillators

C331S046000, C331S049000, C331S050000, C331S060000, C331S074000, C331S187000

Reexamination Certificate

active

08081037

ABSTRACT:
An apparatus including a ring oscillator and related methods are disclosed. The ring oscillator includes at least two ring loops. A first ring loop includes a plurality of series coupled delay cells. At least one additional ring loop includes a plurality of series coupled delay cells. The at least one additional ring loop is coupled to the first ring loop by one or more common delay cells shared between the first ring loop and the at least one additional ring loops.

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International Search Report—PCT/US09/044165, International Search Authority—European Patent Office—Aug. 13, 2009.
Written Opinion—PCT/US09/044165, International Search Authority—European Patent Office—Aug. 13, 2009.

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