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US6154137A
Expired / Lapsed
US
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Identification tag with enhanced security
Assignee: 3M Innovative Properties Co
•
Filing: 1998-06-08
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Granted: 2000-11-28
•
Expires: 2018-06-08
Abstract
Abstract A combination tag is disclosed, including a magnetically-responsive element and a radio frequency-responsive element. In one embodiment, the magnetically-responsive element also functions as an antenna for the radio frequency-responsive element.
Inventors
- 👤 Edward D. Goff
- 👤 Gerald L. Karel
- 👤 Chester Piotrowski
- 👤 Robert A. Sainati
- 👤 Ching-Long Tsai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:55
CPC Classifications
G; G08; G08B; G08B13/00; G08B13/22; G08B13/24; H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/22; H01Q1/2208; H01Q1/2225; G06; G06K; G06K19/00; G06K19/06; G06K19/067; G06K19/07; G06K19/0723; G08B13/2402; G08B13/2405; G08B13/2408; G08B13/2414; G08B13/2417; G08B13/2428; G08B13/2431; G08B13/2437; G08B13/2445; G08B13/2465; G08B13/2485; H01Q1/36; H01Q1/38; H01Q7/00; H01Q9/00; H01Q9/04; H01Q9/16; H01Q9/28; H01Q9/285
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
70 words
A combination tag, comprising: (a) a magnetically-responsive, detectable security element; and (b) a radio frequency-responsive element including an integrated circuit that is reprogrammable, the radio frequency-responsive element having information storage and transmission capabilities to enable an interrogation system to obtain information from the radio frequency-responsive element, wherein the radio frequency-responsive element is electrically coupled to the magnetically-responsive element and uses the magnetically-responsive element as at least part of an antenna.
Claim 2
Dependent Claim
70 words
A combination tag, comprising: (a) a magnetically-responsive, detectable security element; and (b) a radio frequency-responsive element including an integrated circuit that is reprogrammable, the radio frequency-responsive element having information storage and transmission capabilities to enable an interrogation system to obtain information from the radio frequency-responsive element, wherein the radio frequency-responsive element is electrically coupled to the magnetically-responsive element and uses the magnetically-responsive element as at least part of an antenna.
Claim 3
Dependent Claim
20 words
A combination tag according to claim 1 wherein the magnetically-responsive element includes a low coercive force, high permeability ferromagnetic material.
Claim 4
Dependent Claim
18 words
The combination tag of claim 1, wherein the radio frequency-responsive element is physically coupled to the magnetically-responsive element.
Claim 5
Dependent Claim
14 words
The combination tag of claim 1, wherein the magnetically-responsive element provides dual status information.
Claim 6
Dependent Claim
20 words
The combination tag of claim 1, wherein the radio frequency-responsive element communicates with a database to provide dual status information.
Claim 7
Dependent Claim
19 words
The combination tag of claim 1, wherein the tag includes a programmable memory element that provides dual status information.
Claim 8
Dependent Claim
14 words
The combination tag of claim 1, wherein the radio frequency-responsive element includes a battery.
Claim 9
Dependent Claim
21 words
The combination tag of claim 1, where the magnetically-responsive element comprises a high permeability, low coercivity alloy of nickel and iron.
Claim 10
Dependent Claim
19 words
The combination tag of claim 1, wherein the magnetically-responsive element consists of a high permeability, low coercivity amorphous alloy.
Claim 11
Dependent Claim
14 words
The combination tag of claim 1, wherein the magnetically-responsive element is a thin film.
Claim 12
Dependent Claim
13 words
The combination tag of claim 1, wherein the antenna is an electrical dipole.
Claim 13
Dependent Claim
12 words
The combination tag of claim 1, wherein the antenna is a coil.
Claim 14
Dependent Claim
13 words
The combination tag of claim 1, wherein the tag further comprises a capacitor.
Claim 15
Dependent Claim
13 words
The combination tag of claim 13, wherein the capacitor is a distributed capacitor.
Claim 16
Dependent Claim
19 words
A system including the combination tag of claim 1, wherein the system further comprises at least one interrogation source.
Claim 17
Dependent Claim
27 words
The system of claim 15, wherein the system includes an interrogation source for interrogating the magnetically-responsive element, and an interrogation source for interrogating the radio frequency-responsive element.
Claim 18
Dependent Claim
20 words
The system of claim 15, wherein the system further includes a detector for detecting the presence of the combination tag.
Claim 19
Dependent Claim
9 words
The system of claim 17, installed in a library.
Claim 20
Dependent Claim
18 words
The system of claim 17, wherein the system further includes a database having information about the combination tag.
Claim 21
Dependent Claim
15 words
The combination tag of claim 1, wherein the tag is associated with a library material.
Claim 22
Dependent Claim
13 words
The combination tag of claim 20, wherein the library material is a book.
Claim 23
Dependent Claim
17 words
The combination tag of claim 1, wherein the tag has a maximum thickness of approximately 0.5 mm.
Claim 24
Dependent Claim
23 words
A roll comprising a multiplicity of the combination tags of claim 1, the roll enabling automated sequential application of the tags to articles.
Claim 25
Dependent Claim
45 words
The combination tag of claim 1, wherein the magnetically-responsive element is responsive to an applied interrogation signal in the range of 50 Hz to 100 kHz, and the radio frequency-responsive element is responsive to a signal in the range of 125 kHz to 6 GHz.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-11-28 | 2004-05-29 | 2004-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-11-28 | 2008-05-29 | 2008-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-11-28 | 2012-05-29 | 2012-11-28 | $7700.00 | Window Closed / Lapsed |