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Title:
PHASE DETECTOR
Document Type and Number:
WIPO Patent Application WO2001050144
Kind Code:
A3
Abstract:
A method for detecting a phase difference between first and second input signals is provided. The method includes modulating a duty cycle of first and second intermediate signals from a first duty cycle based on the phase difference between the first and second input signals. The method further includes creating a differential output signal based on the modulated duty cycles of the first and second intermdiate signals that is related to the phase difference between the first and second input signals.

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Inventors:
DOTEN GREGORY P (US)
PATTON RONALD E (DE)
Application Number:
PCT/US2001/000212
Publication Date:
February 06, 2003
Filing Date:
January 04, 2001
Export Citation:
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Assignee:
DATA SCIENCES INT INC (US)
DOTEN GREGORY P (US)
PATTON RONALD E (DE)
International Classes:
A61B8/06; G01F1/66; H03L7/085; (IPC1-7): H03D13/00
Domestic Patent References:
WO1998000685A21998-01-08
Foreign References:
EP0711041A11996-05-08
US5970106A1999-10-19
US5953386A1999-09-14
US5142555A1992-08-25
EP0803984A21997-10-29
EP0252444A21988-01-13
CA1153795A1983-09-13
EP0402711A11990-12-19
DE19617635A11997-11-13
US4520319A1985-05-28
US5502652A1996-03-26
US4452090A1984-06-05
US4384491A1983-05-24
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