Transmitter for pulsed electronic article surveillance systems

Details Transmitter for pulsed electronic article surveillance systems Transmitter for pulsed electronic article surveillance systems

G - Physics

08

B

G08B 13/22 (2006.01) G08B 13/24 (2006.01)

Patent

CA 2149500

An electronic article surveillance (EAS) system includes a pulsed EAS transmitter, a linear power amplifier having active devices for linear amplification of signals input thereto and control means for energizing the linear power amplifier active devices correspondingly with transmitter pulsations. A transmitter for use in electronic article surveillance, comprises a transmitting antenna, a source providing a succession of mutually spaced bursts of high-frequency signals, a linear power amplifier having active devices for linear amplification of the succession of mutually spaced bursts of high-frequency signals and a controller for selectively energizing the linear power amplifier active devices. The controller maintains the linear power amplifier active devices unenergized between successive of the mutually spaced bursts of high-frequency signals.

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