Determining the position of a constant frequency interval in...

Details Determining the position of a constant frequency interval in... Determining the position of a constant frequency interval in...

2005-08-30

2005-08-30

Bocure, Tesfaldet (Department: 2631)

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

C375S364000, C375S234000

Reexamination Certificate

active

06937672

ABSTRACT:
Noise-reduced signal values derived from at least a part of the constant frequency interval of a telecommunication signal for adapting a filter to the frequency of the constant frequency interval, and to determine the position of the constant frequency interval on the basic of the filtered output values. Employing this idea, a filter can be adapted to a wide range of possible frequencies, which means that the filtered output values will show marked differences when the constant frequency interval begins and/or ends. These differences can be used to detect the position accurately and reliably.

REFERENCES:
patent: 5199047 (1993-03-01), Koch
patent: 5241688 (1993-08-01), Arora
patent: 5416800 (1995-05-01), Frank
patent: 6356608 (2002-03-01), Atarius
patent: 6724837 (2004-04-01), Zhou
patent: 2315198 (1998-01-01), None
patent: 2316840 (1998-03-01), None
European Search Report, dated Jul. 22, 1999.

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