Automated optimization of EAS device detection
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United States of America Patent
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Mar 7, 2017
Grant Date -
N/A
app pub date -
Dec 3, 2015
filing date -
Dec 3, 2015
priority date (Note) -
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Abstract
A tag monitoring device configured to interface with a security tag adapted to be disposed on a corresponding product in a monitoring environment may include a transmitter, a receiver and processing circuitry. The transmitter transmits a periodic signal pulse during a transmit cycle. The receiver monitors for a response from the security tag after the transmit cycle. The processing circuitry is configured to control the receiver with respect to enabling the receiver to detect the response. The processing circuitry is configured to perform dynamic tuning of the receiver by calculating an average random noise level for a predetermined period of time, comparing the average random noise level to a first threshold and a second threshold, applying an incremental gain reduction in response to the average random noise level being greater than the first threshold, and applying an incremental gain increase in response to the average random noise level being less than the second threshold.
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