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US08452257B2 Real-time balance on a mobile phone 有权
在手机上实时平衡

Real-time balance on a mobile phone
摘要:
A system, method and prepaid payment mobile phone configured to display a current prepaid balance. The prepaid payment mobile phone receives a debit balance request from input on the mobile phone. After retrieving an encoded current balance, the mobile phone displays the amount. The current balance may be calculated by the phone after a transaction, or the phone may receive a debit balance via a short message service notification.
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