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Account transaction system

  • US 5,231,569 A
  • Filed: 06/12/1990
  • Issued: 07/27/1993
  • Est. Priority Date: 06/12/1990
  • Status: Expired due to Fees
First Claim
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1. An account transaction system for performing a transaction at a transaction point from an account issued by an account issuer to an account holder, said system servicing a plurality of account issuers, said system comprising:

  • a transaction card carrying account holder data identifying the account holder;

    a remote transaction terminal located at the transaction point, said terminal having means for reading the account holder data carried on said card, and a means for inputting transaction terminal information, said transaction terminal information identifying a type of transaction, and an amount for said transaction, such that a unit of transaction information data is generated by combination of the account holder data and the transaction terminal information, said remote transaction terminal having means for generating an authorization request signal for said transaction information data;

    memory means including a first database having a first set of negative data of a plurality of account holders identifying account holders that present an unacceptable risk of non-payment to account issuer, said first database compiled from data only from said account issuer, and a second database having a second set of negative data of a plurality of account holders identifying account holders that present on unacceptable risk of non-payment to account issuer, said second set of negative data compiled from data from said plurality of account issuers;

    an authorization processor operatively connected to receive said authorization request signal from said remote transaction terminal, said authorization processor including a logic means for;

    a) comparing said transaction information data for said account holder to said data in said first and second sets of negative data;

    b) generating an authorization response signal, said response signal comprising one of a first signal and second signal, said first signal indicating authorization of an account transaction if there is no match between said transaction information data and both of said first and second sets of negative data and a second signal indicating non-authorization of said transaction if there is a match between said transaction information and said first set or said second set of negative data, said authorization processor operatively connected to transmit said responsive signal to said remote transaction terminal.

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