Computerized data-bearing card and reader/writer therefor

Registers – Systems controlled by data bearing records – Banking systems

Patent

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Details

235492, 34082534, 902 4, G06F 1530

Patent

active

048291668

ABSTRACT:
A computerized data-bearing card which includes an internal microcomputer chip which includes a random access memory, a read-only memory and a programmable read-only memory, and which is constructed so that digitized data may be read from and written into the microcomputer by an independent reader/writer unit. Communication between the card and the reader/writer unit is by means of interactive photoelectric transducers provided in the card and the reader/writer unit. The circuitry within the card is electrically energized by electromagnetic induction from the reader/writer unit, thereby obviating any need for internal batteries, electrical connections to external power supplies and electric switches. Clock signals from the microcomputer are also supplied to the reader/writer unit by interactive photoelectric transducers.

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