Electronic monitoring systems, shipment container monitoring systems and methods of monitoring a shipment in a container
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United States of America Patent
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-
Mar 5, 2013
Grant Date -
Nov 10, 2011
app pub date -
Jul 11, 2011
filing date -
Feb 14, 2007
priority date (Note) -
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Abstract
A shipping container has a passive radio antenna element having internal and external antennas. A connector spanning the wall joins the two antennas. An internal communications device is disposed within the container and an external communications device is disposed external to the container. Another shipping container has a repeater element having internal and external antennas. A repeater unit spans the wall joining the two antennas. A communications device is disposed within the container and another communications device is disposed externally. RF signals are re-radiated by the antennas. Methodology includes emitting RF signals from a communication device disposed at a first location, receiving the signals through an antenna comprised by an antenna element, and re-radiating the signal from a second antenna comprised by the element, where the element spans the wall of a shipping container. The re-radiated signal is received by a second communications device disposed at a second location.
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