System for providing open-loop quadrature clock generation

Details System for providing open-loop quadrature clock generation System for providing open-loop quadrature clock generation

2007-05-16

2009-11-03

Kinkead, Arnold (Department: 2817)

Oscillators

Ring oscillators

C331S045000, C331S074000, C327S156000

Reexamination Certificate

active

07612621

ABSTRACT:
A system for providing open-loop quadrature clock generation. The system is implemented by a ring oscillator structure that includes input inverters for receiving an input clock, forward direction loop inverters, backward direction loop inverters, one or more outputs, and cross-coupled latches connected between any two opposite nodes.

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patent: 2007/0090867 (2007-04-01), Kim
patent: 2007/0109032 (2007-05-01), Park
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patent: 102004042900 (2005-04-01), None
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patent: 2007006492 (2007-01-01), None

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