Systems and methods for multi-range clock generation

Details Systems and methods for multi-range clock generation Systems and methods for multi-range clock generation

2006-05-16

2010-06-15

Pascal, Robert (Department: 2817)

Oscillators

With frequency adjusting means

Step-frequency change

C331S17700V, C331S016000, C331S034000

Reexamination Certificate

active

07737798

ABSTRACT:
Various systems and methods for clock generation are disclosed herein. As just one example, a system for clock generation is disclosed that includes a phase/frequency control circuit that provides a feedback control; a multi-range selector circuit that receives the feedback control; and a controlled oscillator that provides an output with a phase and frequency at least in part governed by the multi-range selector circuit and the feedback control. In various instances of the aforementioned embodiments, the controlled oscillator is a ring oscillator relying on inherent capacitance.

REFERENCES:
patent: 4510461 (1985-04-01), Dickes et al.
patent: 6188285 (2001-02-01), Nakanishi et al.
patent: 6356158 (2002-03-01), Lesea
patent: 6885873 (2005-04-01), Ravi et al.
patent: 6940356 (2005-09-01), McDonald et al.

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