RF receiver and RFID/USN system having the same
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United States of America Patent
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Jun 11, 2013
Grant Date -
Sep 24, 2009
app pub date -
Sep 18, 2007
filing date -
Oct 19, 2006
priority date (Note) -
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Abstract
A radio frequency receiver comprises a first signal coupler coupling and branching a radio frequency signal received from a tag or a reader, a voltage regulator receiving the coupled signal and outputting a voltage-regulated signal having a predetermined level, a signal converter mixing the radio frequency signal transmitted from the first signal coupler by using the voltage-regulated signal as an oscillation frequency signal and generating a baseband frequency signal, a signal processor processing the baseband frequency signal and extracting tag information, and a data transceiver transmitting the tag information through a wire and/or wireless network.
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