High-Speed Chip Card Reading
Original Publication Date: 1984-Sep-01
Included in the Prior Art Database: 2005-Feb-05
Present communication schemes between known chip cards and their terminals require a terminal command or special code for reading bits or bytes from or for writing them into those cards. For normal transactions, involving many bits or bytes, this procedure has to be repeated, which is very time-consuming, particularly if all chip card data have to be read out by banks for final record purposes. This is a regularly recurring operation that may take seconds. To avoid the above-described disadvantage, it is proposed to render the card chips more intelligent. For reading the entire card memory, one terminal command (e.g., "DUMP") should be sufficient for transmitting the entire chip storage contents bit-by-bit to the card terminal. The figure shows the proposed arrangement of the storage part of the chip.