Adjusting RFID waveform shape in view of signal from an RFID...

Details Adjusting RFID waveform shape in view of signal from an RFID... Adjusting RFID waveform shape in view of signal from an RFID...

2006-04-25

2008-08-26

Trieu, Van T. (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S572400

Reexamination Certificate

active

07417548

ABSTRACT:
Systems, software, devices, and methods are described for an RFID reader system to communicate with RFID tags. RF energy encountered in conjunction with using a selected channel is detected. The RF energy can be a signal from an RFID tag. The detected signal is used to adjust a waveform shaping parameter. RF waves can be transmitted from the reader to the RFID tags and RF waves can be backscattered from the RFID tags. At least some of the RF waves transmitted to or backscattered from the RFID tags have a waveform with a shape according to the adjusted waveform shaping parameter.

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