Adaptable detection threshold for RFID tags and chips

Details Adaptable detection threshold for RFID tags and chips Adaptable detection threshold for RFID tags and chips

2011-03-29

2011-03-29

Anderson, Matthew D. (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Short range rf communication

C455S336000, C340S572100, C340S010200, C340S010420, C340S505000, C340S005610, C342S042000, C342S044000, C342S050000, C235S492000, C235S380000, C327S157000, C327S159000

Reexamination Certificate

active

07917088

ABSTRACT:
RFID tags, tag circuits, and methods are provided that reduce at least in part the distortion to received wireless signals, which is caused by interference in the environment. Two or more thresholds are used to digitize the received signal implemented by two or more demodulators. Multiple low pass and digital filters may be implemented with the demodulators, allowing removal of narrow pulses caused by the interference and reduction of beat tone amplitude.

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