Approach detecting system

Details Approach detecting system Approach detecting system

2006-10-04

2008-11-25

Nguyen, Hung T. (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S553000, C340S561000, C340S565000, C340S567000, C340S568200, C340S541000, C340S545300

Reexamination Certificate

active

07456739

ABSTRACT:
A leaky cable having radiation directivity which varies with frequency transmits electric waves in different frequency bands. A measurement apparatus outputs measurement information including signal intensity and phase of a reflected electric wave in each frequency band which is reflected by a target and is received by another leaky cable, and propagation delay time. A calculator groups the measurement information by target on the basis of signal intensities and phases of the reflected electric waves in different frequency bands, and calculates the position of the target with respect to the longitudinal direction of the leaky cables and the distance between the target and the leaky cables.

REFERENCES:
patent: 5510766 (1996-04-01), Harman et al.
patent: 5705984 (1998-01-01), Wilson
patent: 6424289 (2002-07-01), Fukae et al.
patent: 7154391 (2006-12-01), Maki et al.
patent: 2008/0036597 (2008-02-01), Harman
patent: 10-095338 (1998-04-01), None
patent: 2004-125604 (2004-04-01), None
patent: WO 2005/013223 (2005-10-01), None

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