Filter turning point detection

Details Filter turning point detection Filter turning point detection

2006-09-05

2006-09-05

Hoff, Marc S. (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system

Measured signal processing

C702S123000, C702S125000, C702S127000, C714S707000, C714S708000, C714S712000, C714S821000

Reexamination Certificate

active

07103514

ABSTRACT:
Disclosed are a method and system for detecting point. The method of this invention comprises the steps of providing a set of points representing measured time delays between two clocks, providing a turning indicator to measure a magnitude of turns per measurement interval, and identifying a turn at a given point when the turn indicator at said given point is above a given value. With the preferred embodiment of the invention, the turn indicator is given by the equation: turn_indicator=(rtt_min−rtt_estimate)
umber_of_points; where rtt_min is the minimum round trip delay in all the measurement points, and rtt_estimate is estimated round trip delay by using the symmetric convex hull algorithm.

REFERENCES:
patent: 6661810 (2003-12-01), Skelly et al.
patent: 2002/0120416 (2002-08-01), Liu et al.
patent: 2002/0176525 (2002-11-01), Yamaguchi et al.
patent: 2002/0188881 (2002-12-01), Liu et al.
patent: 2003/0031284 (2003-02-01), Ishida et al.

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