Patent ID: 6963843
Filing Date: 2005-11-08
Classification: G06Q

Abstract:
1. An electronic monetary system including a network, electronic note generation means connected to said network, contract means connected to said network, and one or more electronic note using means, at least one of said electronic note using means including electronic note request means for receiving authorization information representing a generation request for an electronic note or an electronic representation of money and presenting said authorization information to said electronic note generation means via said network to request generation of an electronic note of a predetermined amount, said electronic note generation means including means for accepting presentation of said authorization information and a request for generation of said electronic note from said electronic note using means, determining if said authorization information represents a generation request for said electronic note of said predetermined amount, and, when determining that such representation is true, generating and supplying said electronic note of said predetermined amount to said electronic note using means, at least one of said electronic note using means including contract applying means for receiving and saving said electronic note of said predetermined amount, presenting said electronic note to said contract means to apply for closing of a contract for supply of a commodity, said contract means including: contract accepting means for detecting presentation of said electronic note and an application for closing of said contract from said electronic note using means and receiving an electronic note which belongs to said presented electronic note and has an amount equivalent to a price of said commodity; means for calculating an excess amount which is a total amount of said electronic note received from said electronic note using means that exceeds said price of said commodity, and means for supplying information indicative of said excess amount and said electronic note of an amount exceeding said excess amount to said electronic note generation means, said electronic note generation means including means for invalidating said electronic note of an amount exceeding said excess amount, generating a first electronic note of an amount substantially equal to said excess amount and a second electronic note of an amount substantially equal to a difference between said amount of said invalidated electronic note and said excess amount, and supplying said first electronic note and said second electronic note to said contract means, and said contract means further including means for receiving said first and second electronic notes and supplying said second electronic note to said electronic note using means.