Patent US5434398A successfully refreshed from Google Patents.
US5434398A
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Magnetic smartcard
Assignee: Individual
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Filing: 1994-02-22
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Granted: 1995-07-18
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Expires: 2014-02-22
Abstract
Abstract A magnetic smartcard including a card base, an electric power source embedded in the card base which powers the magnetic smartcard, an at least partly ferromagnetic element embedded in the card base and arranged such that a portion of the ferromagnetic element is positioned at a location suitable for interfacing a magnetic card reader, a processor embedded in the card base which generates a modulated output corresponding to preselected card information and operative for updating the output in accordance with a preselected time schedule and an inductor operative to induce in the ferromagnetic element a modulated magnetic field corresponding to the modulated output.
Inventors
- 👤 Samuel Goldberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:01
CPC Classifications
G; G06; G06K; G06K19/00; G06K19/06; G06K19/06187; G06K19/06206
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
128 words
A magnetic smartcard comprising: a card base; an electric power source, embedded in said card buss, which powers the magnetic smartcard; an at least partly ferromagnetic element, embedded in said card base, having an elongated portion which is shaped and positioned for operatively interfacing a magnetic card reader; a processor, embedded in said card base, which generates a modulated output corresponding to preselected card information and operative for updating said output in accordance with a preselected time schedule; and an inductor, associated with said processor, operative to induce in said ferromagnetic element a modulated magnetic field corresponding to said modulated output, wherein the at least party ferromagnetic element regenerates a substantially spatially uniform magnetic field, corresponding to said modulated magnetic fields, in the vicinity of said elongated portion.
Claim 2
Dependent Claim
128 words
A magnetic smartcard comprising: a card base; an electric power source, embedded in said card buss, which powers the magnetic smartcard; an at least partly ferromagnetic element, embedded in said card base, having an elongated portion which is shaped and positioned for operatively interfacing a magnetic card reader; a processor, embedded in said card base, which generates a modulated output corresponding to preselected card information and operative for updating said output in accordance with a preselected time schedule; and an inductor, associated with said processor, operative to induce in said ferromagnetic element a modulated magnetic field corresponding to said modulated output, wherein the at least party ferromagnetic element regenerates a substantially spatially uniform magnetic field, corresponding to said modulated magnetic fields, in the vicinity of said elongated portion.
Claim 3
Dependent Claim
25 words
A magnetic smartcard according to claim 1 and further comprising a timer, embedded in the card base, which provides said time schedule to said processor.
Claim 4
Dependent Claim
29 words
A magnetic smartcard according to claim 1 wherein said magnetic card reader is associated with a card information database which is updated in accordance with said preselected time schedule.
Claim 5
Dependent Claim
29 words
A magnetic smartcard according to claim 2 wherein said magnetic card reader is associated with a card information database which is updated in accordance with said preselected time schedule.
Claim 6
Dependent Claim
27 words
A magnetic smartcard according to claim 1 wherein said elongated portion of the ferromagnetic element comprises a predetermined combination of a ferromagnetic material and a diamagnetic material.
Claim 7
Dependent Claim
27 words
A magnetic smartcard according to claim 2 wherein said elongated portion of the ferromagnetic element comprises a predetermined combination of a ferromagnetic material and a diamagnetic material.
Claim 8
Dependent Claim
16 words
A magnetic smartcard according to claim 1 wherein said card information includes an account identification code.
Claim 9
Dependent Claim
16 words
A magnetic smartcard according to claim 2 wherein said card information includes an account identification code.
Claim 10
Dependent Claim
26 words
A magnetic smartcard according to claim 3 wherein said portion of the ferromagnetic element comprises a predetermined combination of a ferromagnetic material and a diamagnetic material.
Claim 11
Dependent Claim
26 words
A magnetic smartcard according to claim 4 wherein said portion of the ferromagnetic element comprises a predetermined combination of a ferromagnetic material and a diamagnetic material.
Claim 12
Dependent Claim
16 words
A magnetic smartcard according to claim 3 wherein said card information includes an account identification code.
Claim 13
Dependent Claim
16 words
A magnetic smartcard according to claim 4 wherein said card information includes an account identification code.
Claim 14
Dependent Claim
16 words
A magnetic smartcard according to claim 5 wherein said card information includes an account identification code.
Claim 15
Dependent Claim
16 words
A magnetic smartcard according to claim 6 wherein said card information includes an account identification code.
Claim 16
Dependent Claim
27 words
A magnetic smartcard according to claim 1 adapted for operatively interfacing said magnetic card reader during relative motion between said elongated portion and said magnetic card reader.
Claim 17
Dependent Claim
27 words
A magnetic smartcard according to claim 2 adapted for operatively interfacing said magnetic card reader during relative motion between said elongated par%ion and said magnetic card reader.
Claim 18
Dependent Claim
27 words
A magnetic smartcard according to claim 3 adapted for operatively interfacing said magnetic card reader during relative motion between said elongated portion and said magnetic card reader.
Claim 19
Dependent Claim
27 words
A magnetic smartcard according to claim 5 adapted for operatively interfacing amid magnetic card reader during relative motion between said elongated portion and said magnetic card reader.
Claim 20
Dependent Claim
27 words
A magnetic smartcard according to claim 6 adapted for operatively interfacing said magnetic card reader during relative motion between said elongated portion and said magnetic card reader.
Claim 21
Dependent Claim
27 words
A magnetic smartcard according to claim 7 adapted for operatively interfacing said magnetic card reader during relative motion between said elongated portion and said magnetic card reader.
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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) | 1998-07-17 | 1999-01-16 | 1999-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-07-17 | 2003-01-16 | 2003-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-07-17 | 2007-01-16 | 2007-07-18 | $7700.00 | Window Closed / Lapsed |