Sensors and systems for detecting environmental conditions or changes
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United States of America Patent
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Aug 6, 2013
Grant Date -
Dec 22, 2011
app pub date -
Jan 21, 2011
filing date -
Dec 22, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
Sensors and systems for detecting predetermined environmental conditions or changes may include a device capable of providing information. The device may include either a shield or reconfigurable antenna. For example, in a first condition, a shield is configured to prevent communications with the device and, in a second condition, the shield is configured to enable communications with the device. Alternately, in a first condition, a reconfigurable antenna is configured to enable communications with the device and in a second condition the reconfigurable antenna is configured to prevent communications with the device. The shield or reconfigurable antenna may be configured to transition from first conditions to second conditions upon exposure to a predetermined environmental condition or change.
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