Method and Apparatus for Simplifying the Handling of Complex Payment Transactions
First Claim
1. A method for payment with a payment device when a final transaction amount is not known upon first presentation of said payment device to a merchant, said method comprising the steps of:
- charging a predetermined amount upon said first presentation;
calculating said final transaction amount, subsequent to said first presentation, said calculated final transaction amount being made available to a central server;
calculating a variable adjustment value by comparing said predetermined amount already charged with said final transaction amount, said calculated variable adjustment value being made available to said central server; and
modifying a new predetermined amount charged, upon a subsequent presentation of said payment device, by said variable adjustment value.
1 Assignment
0 Petitions
Accused Products
Abstract
A predetermined amount, which may, in general, be zero, less than, the same as, or greater than a (yet-to-be-determined) final transaction amount, is charged upon first presentation of a payment device to a merchant. A final transaction amount is calculated, preferably at a central server, subsequent to the first presentation. A variable adjustment value is calculated, preferably at the central server, by comparing the predetermined amount already charged with the final transaction amount. A new predetermined amount charged, upon a subsequent presentation of the payment device, is modified by the variable adjustment value.
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Citations
25 Claims
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1. A method for payment with a payment device when a final transaction amount is not known upon first presentation of said payment device to a merchant, said method comprising the steps of:
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charging a predetermined amount upon said first presentation; calculating said final transaction amount, subsequent to said first presentation, said calculated final transaction amount being made available to a central server; calculating a variable adjustment value by comparing said predetermined amount already charged with said final transaction amount, said calculated variable adjustment value being made available to said central server; and modifying a new predetermined amount charged, upon a subsequent presentation of said payment device, by said variable adjustment value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for payment with a payment device when a final transaction amount is not known upon first presentation of said payment device to a merchant, said apparatus comprising:
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means for charging a predetermined amount upon said first presentation; means for calculating said final transaction amount subsequent to said first presentation, said calculated final transaction amount being made available to a central server; means for calculating a variable adjustment value by comparing said predetermined amount already charged with said final transaction amount, said calculated variable adjustment value being made available to said central server; and means for modifying a new predetermined amount charged, upon a subsequent presentation of said payment device, by said variable adjustment value. - View Dependent Claims (12)
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13. An apparatus for payment with a payment device when a final transaction amount is not known upon first presentation of said payment device to a merchant, said apparatus comprising:
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a memory; and at least one processor, coupled to said memory, and operative to; facilitate charging a predetermined amount upon said first presentation; facilitate calculating said final transaction amount subsequent to said first presentation, said calculated final transaction amount being made available to a central server; facilitate calculating a variable adjustment value by comparing said predetermined amount already charged with said final transaction amount, said calculated variable adjustment value being made available to said central server; and facilitate modifying a new predetermined amount charged, upon a subsequent presentation of said payment device, by said variable adjustment value. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A computer program product comprising a tangible computer readable recordable storage medium including computer usable program code for payment with a payment device when a final transaction amount is not known upon first presentation of said payment device to a merchant, said computer program product including:
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computer usable program code for charging a predetermined amount upon said first presentation; computer usable program code for calculating said final transaction amount, subsequent to said first presentation, said calculated final transaction amount being made available to a central server; computer usable program code for calculating a variable adjustment value by comparing said predetermined amount already charged with said final transaction amount, said calculated variable adjustment value being made available to said central server; and computer usable program code for modifying a new predetermined amount charged, upon a subsequent presentation of said payment device, by said variable adjustment value. - View Dependent Claims (24, 25)
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Specification