Communications: electrical – Digital comparator systems
Patent
1985-06-18
1988-06-07
Malzahn, David H.
Communications: electrical
Digital comparator systems
235380, G06K 500, G06F 702
Patent
active
047499826
ABSTRACT:
In an intelligent card, a keyboard has numeric keys for entering identification information and a collation execution key. A solar cell, a display device and an IC chip for performing arithmetic operations and card identification are incorporated in a case. The IC chip includes a nonvolatile memory for storing predetermined identification information. The predetermined identification information is compared with the input identification information entered at the keyboard upon operation of the key, thereby performing card identification.
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Bito Hiroyasu
Hara Kazuya
Nakano Harumi
Rikuna Kenji
Shigenaga Yoshimi
Casio Computer Co. Ltd.
Malzahn David H.
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