Patent ID: 6049786
Filing Date: 2000-04-11
Classification: G06Q

Abstract:
An electronic bill processing system for efficiently presenting and verifying bills, which is comprised of:multiple biller computers, each biller computer having a data base which stores a respective plurality of complete bills for a plurality of customers;a bill presentment computer, coupled to and distinct from all of said biller computers, having a data base which stores a summary of each complete bill in which superfluous data is extracted and a respective hash of each complete bill which is digitally signed by the corresponding biller computer, where each summary and hash are at least twenty times smaller than the corresponding complete bill; and,multiple customer computers, coupled to said biller computers and said bill presentment computer, wherein each particular customer computer includes a control means which requests and receives from said bill presentment computer, a summary of a selected complete bill plus its respective digitally signed hash, and as an option, requests and receives from said biller computer, said selected complete bill.