Reference circuit enhancement for passive RFID tags

Communications: electrical – Selective – Interrogation response

Reexamination Certificate

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Details

C327S538000

Reexamination Certificate

active

07075413

ABSTRACT:
A passive RF tag is disclosed in which the tag contains a tag oscillator for determining the modulation frequency of modulating the backscatter signal, and the tag oscillator frequency is stabilized when the tag modulates the backscatter signal.

REFERENCES:
patent: 5781061 (1998-07-01), Miyashita et al.
patent: 5912632 (1999-06-01), Dieska et al.
patent: 6906615 (2005-06-01), Friedman

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