Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1997-11-28
1999-06-01
Tong, Nina
Communications: electrical
Condition responsive indicating system
Specific condition
340551, G08B 1314
Patent
active
059091789
ABSTRACT:
A method for adjusting a validation threshold for detecting a marker in an interrogation zone of an electronic surveillance system, comprising the steps of: (a.) tracking individual moving averages of background noise in a plurality of operational phase windows; (b.) tracking a moving variance for each of the moving averages of the background noise in each of the plurality of windows; and, (c.) continuously adjusting a validation threshold for detecting the marker in the interrogation zone responsive to the moving averages and responsive to the moving variances.
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Allen John A.
Balch Brent F.
Sensormatic Electronics Corporation
Tong Nina
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