Method and security apparatus for validating an...

Communications: electrical – Land vehicle alarms or indicators – Of burglary or unauthorized use

Reexamination Certificate

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C340S005720, C340S005640, C340S005610

Reexamination Certificate

active

07071817

ABSTRACT:
Taking as a starting point known security apparatuses and their methods for distance-dependent initiation of functions in or at an object, the reliability of distance measurements is essentially increased by carrying out a series of distance measurements, an associated quality value (G) being calculated by a mathematical function in each case for the measuring results (M1–M5, R1, R2) of said distance measurements. Only those measured values which fall below a certain quality value (Krit) as a threshold value are generally accepted for an analysis in respect of initiating a distance-related function. Developments provide for selecting measured values beforehand with reference to a level measurement, in order to further increase the reliability, or applying methods of statistical analysis subsequently.

REFERENCES:
patent: 6208239 (2001-03-01), Muller et al.
patent: 199 12 319 (2000-10-01), None
patent: 199 57 536 (2001-06-01), None
patent: 100 64 141 (2002-07-01), None

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