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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Claus; David M.
Address:
Indianapolis, IN
No. of patents:
4
Patents:












Patent Number Title Of Patent Date Issued
5559313 Categorization of purchased items for each transaction by a smart card September 24, 1996
A smart card that is responsive to a list of items with individual prices that are received from a point of sale (POS) terminal during an individual transaction to automatically insert these items into expense categories. A personal computer later retrieves these categories and associate
5461217 Secure money transfer techniques using smart cards October 24, 1995
Systems and methods for providing secure electronic financial transactions are disclosed. Money is electronically stored on a plurality of smart cards. At least one smart card is equipped with an electronic security wall having a closed state and an open state. In the closed state, the
5310999 Secure toll collection system for moving vehicles May 10, 1994
A secure toll payment system is realized by transmitting a changeable encryption code from roadside equipment at a toll plaza to a moving vehicle. Thereafter, the moving vehicle uses it to encrypt payment information according to the Data Encryption Standard algorithm. The moving veh
5120939 Databaseless security system June 9, 1992
An improved security system, including a protable smart card and a host computer, eliminates the need for the computer to store individual personal identification (ID) numbers for each user seeking access to the computer. Instead, the computer stores a first encryption algorithm E.su










 
 
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