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:
Jul. 28, 1981
Filed:
Jun. 09, 1980
Applicant:
Inventors:
Douglas A Narlow, Coral Springs, FL (US);
James G Farrar, Coral Springs, FL (US);
Assignee:
Sensormatic Electronics Corporation, Deerfield Beach, FL (US);
Primary Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340572 ; 340552 ;
Abstract
A floor mat consisting of a conductive grid laminated to a conductive sheet with a layer of dielectric material therebetween to form a capacitor is disposed between the pedestals that house means for radiating a microwave signal through a surveillance area. A low frequency signal is applied to the capacitor mat for direct capacitive coupling through the body of a pedestrian to any surveillance tag carried thereon.
Narlow, Douglas. (1981). Surveillance system employing a floor mat radiator (U.S. Patent No. 4281321). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4281321
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile