The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 01, 1999
Filed:
Nov. 28, 1997
Applicant:
Inventors:
Brent F Balch, Fort Lauderdale, FL (US);
John A Allen, Pompano Beach, FL (US);
Assignee:
Sensormatic Electronics Corporation, Boca Raton, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
3405724 ; 340551 ;
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.