Oscillators – Ring oscillators
Patent
1996-01-29
1998-04-14
Callahan, Timothy P.
Oscillators
Ring oscillators
331 10, 331 17, 331 34, H03L 706
Patent
active
057397252
ABSTRACT:
A variable frequency oscillator circuit includes a ring oscillator circuit, a plurality of adjustment means for adjusting an output frequency of the ring oscillator circuit, at least one of the adjustment means having monotonic behavior, adapted to switch between first adjustment levels at a first rate and at least one of the adjustment means having non-monotonic behavior, adapted to switch between second adjustment levels at a second rate which is less than the first rate, such that the means having monotonic behavior adjusts for monotonicity errors which occur during switching.
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Ferraiolo Frank David
Gersbach John Edwin
Masenas, Jr. Charles Joseph
Balconi-Lamica Esq. Michael J.
Callahan Timothy P.
International Business Machines - Corporation
Luu An T.
Walsh, Esq. Robert A.
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