Method and apparatus for encoding transactions for goods and...

Data processing: financial – business practice – management – or co – Automated electrical financial or business practice or... – Inventory management

Reexamination Certificate

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Details

C705S027200, C705S026640, C705S029000, C705S022000

Reexamination Certificate

active

09329461

ABSTRACT:
A method and apparatus for encoding transactions for goods and services using an e-receipt is provided. A consumer and a merchant conduct a commercial transaction using a distributed data processing system. An electronic receipt is recorded on a removable storage medium at a first data processing system. The electronic receipt contains data concerning the commercial transaction. The removable storage medium is then read at a second data processing system. After validating the electronic receipt, another commercial transaction or another stage of the original commercial transaction may be performed. The electronic receipt may be validated for a warranty claim on goods or services subject to the purchase transaction, and the removable storage medium may be an optical card or a smart card, either of which is able to store thousands of e-receipts and other electronic documents related to a commercial transaction, with the integrity of each guaranteed through digital signature, digital certificate, etc.

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