Integrated switching device for routing radio frequency signals
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United States of America Patent
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Jul 3, 2007
Grant Date -
Jun 30, 2005
app pub date -
Dec 23, 2004
filing date -
Dec 31, 2003
priority date (Note) -
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Abstract
An RFID reader accessible thorough a personal computer and includes a PC card interface and a controller both operating according to clock signals from a crystal oscillator. The RFID reader further includes a linearized power amplifier modulator in a transmit path, a receive chain capable of demodulating either class_1 or class _0 signals from RFID tags, and an integrated switching device for selecting one of a plurality of antenna for transmitting or receiving RF signals.
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