| 摘要 |
A digital voucher system facilitates the convenient application of vouchers against products and services purchased from a merchant by a consumer. A voucher enabled device carried by the consumer stores digital vouchers in memory. When the merchant detects a voucher enabled device nearby, the merchant queries and obtains applicable vouchers for the consumer from the voucher enabled device carried by the consumer, applies the vouchers to a transaction, and communicates the resulting transaction data back to the voucher enabled device.
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