RFID reader with digital waveform encoding and digital decoding
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United States of America Patent
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Issued Date -
Sep 6, 2007
app pub date -
Mar 3, 2006
filing date -
Mar 3, 2006
priority date (Note) -
Abandoned
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Abstract
A Radio Frequency Identification (RFID) reader according to one embodiment of the present invention includes a first microprocessor acting as a controller, and a second microprocessor, e.g., DSP, in communication with the first microprocessor, the second microprocessor generating a digitally synthesized waveform. A converter converts the digitally synthesized waveform to an analog waveform. A modulator combines the analog waveform with a carrier signal for generating an outgoing signal. The waveform may have rising and falling edges of varying shape. Methods are also presented.
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