RFID READERS CO-EXISTING WITH OTHER ISM-BAND DEVICES
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United States of America Patent
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Issued Date -
Jun 27, 2013
app pub date -
Feb 26, 2013
filing date -
Apr 18, 2007
priority date (Note) -
Abandoned
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Abstract
Radio Frequency IDentification (RFID) reader system, software, and methods are provided, such that an operational processing block for the RFID reader to communicate with an RFID tag uses a RF spectrum portion subdivided into a set of channels. The communication takes place in the presence of a foreign device that uses a subset of first channels of the RF spectrum and does not use a subset of second channels of the spectrum. The methods cause a radiating power directed towards the tag to be reduced and a radiating dwell time to be changed. This is to assure that co-existing systems can operate without compromising their functionality and operational quality. In some embodiments, the radiating power is reduced to zero.
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