Oscillators – Ring oscillators
Reexamination Certificate
2007-06-12
2007-06-12
Pascal, Robert (Department: 2817)
Oscillators
Ring oscillators
C327S158000, C327S161000, C327S277000, C327S284000, C327S159000
Reexamination Certificate
active
11112746
ABSTRACT:
A delay line for a ring oscillator circuit includes at least one delay stage having a multiple logic gate delay cells driven by a multiplexer. The multiplexer is symmetrically configured and includes multiple logic gates that are similar to the logic gates of the delay stage.
REFERENCES:
patent: 4458165 (1984-07-01), Jackson
patent: 5389843 (1995-02-01), McKinney
patent: 5465076 (1995-11-01), Yamauchi et al.
patent: 5467041 (1995-11-01), Baba et al.
patent: 5815016 (1998-09-01), Erickson
patent: 5920216 (1999-07-01), Fischer
Gannon Levi
Hogan & Hartson LLP
Pascal Robert
STMicroelectronics S.R.L.
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