Flexible transponder label which is readable on conductive...

Details Flexible transponder label which is readable on conductive... Flexible transponder label which is readable on conductive...

2007-04-17

2007-04-17

Tweel, Jr., John (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S572500, C340S572600

Reexamination Certificate

active

10503035

ABSTRACT:
A transponder label includes an antenna coil, a semiconductor chip, and a single layer film, which acts both as a carrier film and as a shield against the induction of counter magnetic fields in the metallic base layer. The semiconductor chip acts both as a capacitor element of the transponder resonant circuit and as a memory component. The film is a flexible matrix including embedded ferrite particles, which give the film soft magnetic characteristics. The permeability value of the film is adapted to its thickness and the material of the base layer, the value being higher for a reduced thickness. The resonant frequency of the transponder resonant circuit formed from the antenna coil and semiconductor chip lies within a narrow target frequency range, once the label has adhered.

REFERENCES:
patent: 4774521 (1988-09-01), Okada et al.
patent: 4990891 (1991-02-01), Reeb
patent: 5059950 (1991-10-01), Perchak
patent: 5285191 (1994-02-01), Reeb
patent: 5912622 (1999-06-01), Endo et al.
patent: 6371380 (2002-04-01), Tanimura
patent: 6894660 (2005-05-01), Sanogo
patent: 7012530 (2006-03-01), Droz
patent: 2003/0117336 (2003-06-01), Droz
patent: 31 43 208 (1983-05-01), None
patent: 41 29 446 (1992-03-01), None
patent: 38 80 202 (1993-08-01), None
patent: 195 16 448 (1996-11-01), None
patent: 197 33 849 (1998-06-01), None
patent: 298 04 579 (1999-01-01), None
patent: 198 48 833 (2000-09-01), None
patent: 200 08 705 (2000-09-01), None
patent: 100 40 439 (2001-05-01), None
patent: 0 295 028 (1988-12-01), None
patent: 2000113142 (2000-04-01), None
patent: WO 0180173 (2001-10-01), None

Affiliated with

Also associated with

Rating

Flexible transponder label which is readable on conductive... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flexible transponder label which is readable on conductive..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flexible transponder label which is readable on conductive... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3794282