EP0251619A2
Expired / Lapsed
EP
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Portable transaction card
Assignee: Visa International Service Association
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Filing: 1987-06-22
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Granted: —
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Expires: 2007-06-22
Abstract
Abstract A transaction card (10) capable of authorizing a transaction in a foreign currency includes an internal microprocessor (20) which is connected to a memory (22, 24, 30). Stored within the memory (24) is a transaction limit associated with each account of the cardholder, and one or more rates for converting the transaction limit into foreign currencies. The cardholder selects the foreign currency to be used for a purchase. After the selection, the processor (20) converts the transaction limit from a local or base currency to the selected foreign currency. Thereafter, during the transaction, the processor (20) compares the transaction amount with the converted transaction limit to determine if an approval code should be generated. In a preferred embodiment, a key pad (40) is provided on the transaction card (10) to facilitate data entry. In addition an LCD readout (50) is provided for displaying the approval code.
Inventors
- 👤 Vincent Boston
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 10:29
CPC Classifications
G; G07; G07F; G07F7/00; G07F7/08; G07F7/10; G07F7/1008; G06; G06K; G06K19/00; G06K19/06; G06K19/067; G06K19/07; G06Q; G06Q20/00; G06Q20/08; G06Q20/10; G06Q20/105; G06Q20/30; G06Q20/34; G06Q20/341; G06Q20/3415; G06Q20/357; G06Q20/3572; G06Q20/36; G06Q20/363; G06Q20/38; G06Q20/381
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
128 words
A transaction card capable of authorizing a transaction in foreign currencies comprising: data entry means (28, 40); storage means (24) for holding a transaction limit represented in a base currency and at least one rate for converting the base currency to a different, foreign currency; and processor means (20) connected to the data entry means (28, 40) and the storage means (24) and functioning such that when a transaction is to be carried out in a foreign currency said processor means (20) will convert the base currency into said foreign currency using the associated conversion rate and thereafter compare the transaction amount expressed in the foreign currency supplied through said data entry means (28, 40) to said converted transaction limit to determine if the transaction should be approved.
Claim 2
Dependent Claim
128 words
A transaction card capable of authorizing a transaction in foreign currencies comprising: data entry means (28, 40); storage means (24) for holding a transaction limit represented in a base currency and at least one rate for converting the base currency to a different, foreign currency; and processor means (20) connected to the data entry means (28, 40) and the storage means (24) and functioning such that when a transaction is to be carried out in a foreign currency said processor means (20) will convert the base currency into said foreign currency using the associated conversion rate and thereafter compare the transaction amount expressed in the foreign currency supplied through said data entry means (28, 40) to said converted transaction limit to determine if the transaction should be approved.
Claim 3
Dependent Claim
28 words
A transaction card according to claim 1, characterised in that said processor means (20) generates an approval code if the transaction amount does not exceed the transaction limit.
Claim 4
Dependent Claim
12 words
A transaction card according to claim 2, characterised by display means (50).
Claim 5
Dependent Claim
24 words
A transaction card according to claim 3, characterised in that after said approval code is generated it is displayed on said display means (50).
Claim 6
Dependent Claim
25 words
A transaction card according to claim 3, characterised in that said transaction amount is shown on said display means (50) after it has been entered.
Claim 7
Dependent Claim
27 words
A transaction card according to claim 1, characterised in that if said transaction is approved, said processor means (20) debits the transaction limit by the transaction amount.
Claim 8
Dependent Claim
46 words
A transaction card according to claim 1, characterised in that said processor means (20) converts the transaction limit from one foreign currency to another by first converting said transaction limit into said base currency and thereafter into another foreign currency using the appropriate currency conversion rates.
Claim 9
Dependent Claim
45 words
A transaction card according to claim 1, characterised in that an expiration date is stored in conjunction with each said conversion rate and in that said processor means (20) compares the expiration date with the current date to determine if the transaction should be authorized.
Claim 10
Dependent Claim
22 words
A transaction card according to claim 1, characterised in that the foreign currency is selected through said data entry means (28, 40).
Claim 11
Dependent Claim
20 words
A transaction card according to claim 1, characterised in that said data entry means is defined by electrical contacts (28).
Claim 12
Dependent Claim
21 words
A transaction card according to claim 1, characterised in that said data entry means is defined by a key pad (40).
References Cited (Backward Citations)
No citation records indexed.
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