Method in a radio frequency addressable sensor for communicating sensor data to a wireless sensor reader
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United States of America Patent
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May 26, 2009
Grant Date -
Jun 5, 2008
app pub date -
Oct 31, 2007
filing date -
Dec 22, 2000
priority date (Note) -
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Abstract
A method in a radio frequency (RF) addressable sensor for communicating sensor data to a wireless sensor reader for transmission over a communications network, wherein the RF addressable sensor includes one or more sensor elements. The method includes (a) receiving signals from the wireless sensor reader; (b) obtaining analog sensor data from at least one sensor element; (c) converting the analog sensor data to digital sensor data; (d) communicating the digital sensor data to the wireless sensor reader for transmission over the communications network; and (e) communicating additional information to the wireless sensor reader. Steps (a) and (d) include common designation network communications. The RF addressable sensor is capable of powering down to conserve energy and capable of powering up in response to an electronic signal. The RF addressable sensor includes (i) a transmitter and a first receiver, and (ii) a second receiver that is configured to screen a radio frequency transmission.
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