Reference circuit enhancement for passive RFID tags

Details Reference circuit enhancement for passive RFID tags Reference circuit enhancement for passive RFID tags

2005-06-14

2005-06-14

Zimmerman, Brian (Department: 2635)

Communications: electrical

Selective

Interrogation response

C340S010340, C340S010500, C340S010510

Reexamination Certificate

active

06906615

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: 5521590 (1996-05-01), Hanaoka et al.
patent: 5874902 (1999-02-01), Heinrich et al.
patent: 5912632 (1999-06-01), Dieska et al.

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