Title:
AUTO-ZOOM SLOPED ADC
Document Type and Number:
WIPO Patent Application WO2006020508
Kind Code:
A3
Abstract:
The operating characteristics of a dynamic comparator is used to automatically change the resolution of a sloped or ramped analog-to-digital converter (ADC) by switching the comparator on and off between first (slow) and second (fast) clock frequencies and comparing the amplitude of a sampled input signal against a ramp input signal. The slow clock frequency is first used to determine the area of interest, while the fast clock frequency is then used to zoom into a high resolution area of interest.
Inventors:
TITTEL PAUL A (US)
Application Number:
PCT/US2005/027871
Publication Date:
June 08, 2006
Filing Date:
August 08, 2005
Export Citation:
Assignee:
NORTHROP GRUMMAN CORP (US)
TITTEL PAUL A (US)
TITTEL PAUL A (US)
International Classes:
H03M7/00
Foreign References:
| US5117201A | 1992-05-26 | |||
| US4349887A | 1982-09-14 | |||
| US20040221187A1 | 2004-11-04 | |||
| US4771279A | 1988-09-13 |
Other References:
See also references of EP 1782538A4
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