US5786587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enhancement of chip card security
Assignee: Opsec Security Group Inc
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Filing: 1996-08-05
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Granted: 1998-07-28
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Expires: 2016-08-05
Abstract
Abstract A chip card, such as a financial transaction card, having first identifying data written in a read-only memory portion of circuitry contained in the card, wherein second and third identifying data are respectively coded in a machine readable optically variable device (e.g., a hologram) and a magnetic stripe on the card. The authenticity of the card is verified by combining these different identifying data; for example, the second and third identifying data may be combined to produce an algorithm which is compared with the first identifying data for authentication of the card.
Inventors
- 👤 Gilbert Colgate, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:39
CPC Classifications
G; G07; G07F; G07F7/00; G07F7/08; G07F7/10; G07F7/1008; G06; G06K; G06K19/00; G06K19/06; G06K19/08; G06K19/10; G06K19/14; G06K19/16; G06Q; G06Q20/00; G06Q20/30; G06Q20/34; G06Q20/341; G06Q20/38; G06Q20/40; G06Q20/409; G06Q20/4097; G07F7/0806; G07F7/0813; G07F7/086; G07F7/12; G07F7/125
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
104 words
A method of enhancing the security of a chip card that contains an integrated circuit including a changeable memory and a write once/read only memory, said method comprising (a) writing first identifying data in said write once/read only memory; (b) establishing, on an external surface of the card, an optically readable portion comprising a machine readable optically variable device having coded thereon second identifying data; and (c) establishing, on an external surface of the card, a magnetic stripe having coded therein third identifying data; said first, second and third identifying data being combinable to verify the authenticity of the card to the integrated circuit.
Claim 2
Independent Claim
104 words
A method of enhancing the security of a chip card that contains an integrated circuit including a changeable memory and a write once/read only memory, said method comprising (a) writing first identifying data in said write once/read only memory; (b) establishing, on an external surface of the card, an optically readable portion comprising a machine readable optically variable device having coded thereon second identifying data; and (c) establishing, on an external surface of the card, a magnetic stripe having coded therein third identifying data; said first, second and third identifying data being combinable to verify the authenticity of the card to the integrated circuit.
Claim 3
Dependent Claim
22 words
A method according to claim 1 wherein said writing step comprises encrypting said first identifying data in said write once/read only memory.
Claim 4
Dependent Claim
26 words
A method according to claim 1 wherein said first identifying data are identical to fourth identifying data derivable by combining said second and third identifying data.
Claim 5
Dependent Claim
22 words
A method according to claim 3 wherein said writing step comprises encrypting said first identifying data in said write once/read only memory.
Claim 6
Dependent Claim
25 words
A method according to claim 1 wherein the step of establishing the optically readable portion comprises superimposing the optically readable portion on the magnetic stripe.
Claim 7
Dependent Claim
14 words
A method according to claim 1 wherein said optically variable device is a hologram.
Claim 8
Independent Claim
83 words
A method of enhancing the security of a chip card that contains an integrated circuit including a changeable memory and a write once/read only memory, said method comprising (a) writing first identifying data in said write once/read only memory and (b) establishing, on an external surface of the card, an optically readable portion comprising a machine readable optically variable device having coded thereon second identifying data combinable with said first identifying data to verify the authenticity of the card to the integrated circuit.
Claim 9
Independent Claim
83 words
A method of enhancing the security of a chip card that contains an integrated circuit including a changeable memory and a write once/read only memory, said method comprising (a) writing first identifying data in said write once/read only memory and (b) establishing, on an external surface of the card, an optically readable portion comprising a machine readable optically variable device having coded thereon second identifying data combinable with said first identifying data to verify the authenticity of the card to the integrated circuit.
Claim 10
Dependent Claim
14 words
A method according to claim 7 wherein said optically variable device is a hologram.
Claim 11
Dependent Claim
97 words
A chip card comprising: (a) a card body; (b) an integrated circuit mounted within the card body and including a changeable memory and a write once-read only memory having first identifying data written therein; (c) an optically readable portion comprising a machine readable optically variable device on an external surface of the card, having coded thereon second identifying data; and (d) a magnetic stripe on an external surface of the card having coded therein third identifying data; said first, second and third identifying data being combinable to verify the authenticity of the card to the integrated circuit.
Claim 12
Dependent Claim
97 words
A chip card comprising: (a) a card body; (b) an integrated circuit mounted within the card body and including a changeable memory and a write once-read only memory having first identifying data written therein; (c) an optically readable portion comprising a machine readable optically variable device on an external surface of the card, having coded thereon second identifying data; and (d) a magnetic stripe on an external surface of the card having coded therein third identifying data; said first, second and third identifying data being combinable to verify the authenticity of the card to the integrated circuit.
Claim 13
Dependent Claim
18 words
A card as defined in claim 9 wherein the optically readable portion is superimposed on the magnetic stripe.
Claim 14
Dependent Claim
15 words
A card as defined in claim 9 wherein said optically variable device is a hologram.
Claim 15
Dependent Claim
80 words
A chip card comprising: (a) a card body; (b) an integrated circuit mounted within the card body and including a changeable memory and a write once/read only memory having first identifying data written therein; and (c) an optically readable portion comprising a machine readable optically variable device on an external surface of the card, having coded thereon second identifying data combinable with said first identifying data by a procedure to verify the authenticity of the card to the integrated circuit.
Claim 16
Dependent Claim
80 words
A chip card comprising: (a) a card body; (b) an integrated circuit mounted within the card body and including a changeable memory and a write once/read only memory having first identifying data written therein; and (c) an optically readable portion comprising a machine readable optically variable device on an external surface of the card, having coded thereon second identifying data combinable with said first identifying data by a procedure to verify the authenticity of the card to the integrated circuit.
Claim 17
Dependent Claim
15 words
A card as defined in claim 12 wherein said optically variable device is a hologram.
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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) | 2001-07-27 | 2002-01-26 | 2002-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-07-27 | 2006-01-26 | 2006-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-07-27 | 2010-01-26 | 2010-07-28 | $7700.00 | Window Closed / Lapsed |