Personal portable terminal for financial transactions
Electronic funds transfer and voucher issue system
System and method for authorizing access to an article distribution or service acquisition machine
Cryptographic identification, financial transaction, and credential device
Portable financial transaction card capable of authorizing a transaction in foreign currencies
Interactive market management system
Transaction processing system
One-show blind signature systems
Card-computer moderated systems
ApplicationNo. 721484 filed on 09/27/1996
US Classes:705/39, Including funds transfer or credit transaction705/26, Electronic shopping (e.g., remote ordering)705/35, Finance (e.g., banking, investment or credit)705/40, Bill distribution or payment705/41Having programming of a portable memory device (e.g., IC card, "electronic purse")
ExaminersPrimary: MacDonald, Allen R.
Assistant: Myhre, James W.
International ClassesG06F 017/60
AbstractA method of generating electronic monetary tokens that supports off-line transactions while preventing double-spending. Generation of electronic token halves by a financial services provider begins in response to a request from a buyer to generate electronic monetary tokens to be used with an identified seller. First, the financial services provider generates a multiplicity of electronic monetary tokens. Second, the provider splits each electronic monetary token into two electronic token halves and associates with each the same serial number. These electronic token halves when combined recreate the electronic monetary token from which they were generated, but by themselves neither electronic token half has any value. Nor can either electronic half by itself be used to create the electronic monetary token without the token half's mate. After splitting all of the electronic monetary tokens, the services provider assigns a half of each electronic token the seller and the other half of each electronic token to the buyer. The buyer and seller can now engage in multiple transactions off-line of the financial services provider.