Radio frequency tag

Details Radio frequency tag Radio frequency tag

2005-11-22

2010-10-19

Bugg, George A (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S572700, C340S572100, C343S742000, C343S873000, C343S895000

Reexamination Certificate

active

07817043

ABSTRACT:
The present invention provides an RF tag which does not have an integrated circuit such as a silicon chip, can retain a plurality of information, can rewrite or add the information, and is inexpensive. The RF tag includes an RF resonance circuit which has at least two capacitors connected in series or parallel and at least one coil antenna formed on a substrate, wherein at least one of the capacitors is an anti-fuse which irreversibly short-circuits when a voltage higher than a threshold voltage is applied to the anti-fuse, and the surface of an electrode constituting the capacitor has a mean roughness of 1 μm or less.

REFERENCES:
patent: 5103210 (1992-04-01), Rode et al.
patent: 5111186 (1992-05-01), Narlow et al.
patent: 5119070 (1992-06-01), Matsumoto et al.
patent: 5122923 (1992-06-01), Matsubara et al.
patent: 5318920 (1994-06-01), Hayashide
patent: 5574431 (1996-11-01), McKeown et al.
patent: 6031458 (2000-02-01), Jacobsen et al.
patent: 6400271 (2002-06-01), Davies et al.
patent: 6621410 (2003-09-01), Lastinger et al.
patent: 6708891 (2004-03-01), Amtmann et al.
patent: 7152804 (2006-12-01), MacKenzie et al.
patent: 2006/0108416 (2006-05-01), Hirai
patent: 2006/1010926 (2006-05-01), Hiari et al.
patent: 3-87055 (1991-04-01), None
patent: 5-501468 (1993-03-01), None
patent: 7-500436 (1995-01-01), None
patent: 7-074047 (1995-03-01), None
patent: 9-171597 (1997-06-01), None
patent: 11-306311 (1999-11-01), None
patent: 2000-235635 (2000-08-01), None
patent: 2002-104626 (2002-04-01), None
patent: 2002-163622 (2002-06-01), None
patent: 2002163622 (2002-06-01), None
patent: 2002-245429 (2002-08-01), None
patent: 2002245429 (2002-08-01), None
patent: 2002-319004 (2002-10-01), None
patent: 2004-205451 (2004-07-01), None
patent: 92/00578 (1992-01-01), None
patent: 93/08548 (1993-04-01), None

Affiliated with

Also associated with

Rating

Radio frequency tag does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Radio frequency tag, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radio frequency tag will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4151913