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:
Feb. 24, 2009
Filed:
May. 04, 2005
Jeffrey T. Oakes, Boca Raton, FL (US);
Thomas J. Frederick, Coconut Creek, FL (US);
Richard L. Herring, Wellington, FL (US);
Jeffrey T. Oakes, Boca Raton, FL (US);
Thomas J. Frederick, Coconut Creek, FL (US);
Richard L. Herring, Wellington, FL (US);
Sensomatic Electronics Corporation, Boca Raton, FL (US);
Abstract
A method for controlling electronic article surveillance (EAS) transmissions is described. The method includes calculating system parameters associated with one or more of a desired frequency, a desired duty cycle, and a desired phase difference between antennas for a transmitter, and initializing a counter with a value based on the system parameters. The method also includes comparing a count from the counter to the system parameters, and modulating EAS transmission signals based on the comparison between the count and the system parameters. An EAS transmitter and an EAS system are also described.