4,614,861 9/1986 Pavlov et al 235/380
4,623,964 U/1986 Getz et al 364/401
4,625,276 11/1986 Benton et al 364/408
4,634,845 1/1987 Hale et al 235/379 X
4,679,236 7/1987 Davies 235/380 X
4,697,072 9/1987 Kawana 235/380
4,707,592 11/1987 Ware 235/379
4,709,137 11/1987 Yoshida 235/379
4,734,858 3/1988 Schlafly 364/408
4,736,094 4/1988 Yoshida 235/379
4,749,982 6/1988 Rikuna et al 340/146.2
4,959,788 9/1990 Nagata et al 364/408
FOREIGN PATENT DOCUMENTS
3222288 12/1983 Fed. Rep. of Germany .
2471003 12/1981 France .
00146369 2/1981 Japan .
0197573 11/1983 Japan .
58-197573 3/1984 Japan .
OTHER PUBLICATIONS
Neues aus der Technik, Nos. 4/5, Sep. 15, 1980, p. 2, Surzburg, DE; "Kreditkarte mit Tastenfeld (und Wiedergabeanordnung)".
"Smart Credit Cards: The Answer to Cashless Shopping" Stephen Weinstein, Feb. 1984, IEEE Spectrum 43^9.
"Memory Cards a new concept in personal computing" Mark Mills, Jan. 1984 Byte, pp. 154-168.
Primary Examiner—Dale M. Shaw
Assistant Examiner—Andrew Bodendorf
Attorney, Agent, or Firm—Dickstein, Shapiro & Morin
[57] ABSTRACT
An IC card transaction system is disclosed in which at least a portion of the data required to complete a transaction processing is stored in the card by a customer in advance of transaction processing. An automatic transaction processing unit reads the transaction data stored in the card, checks to determine what transaction data, if any, which is required for the processing of the transaction is not stored in the card and, if necessary, receives from the customer any additional data which was not previously stored in the card and which is required to complete a transaction.
