Non-contact reading type IC card with pre-enhancement function

Details Non-contact reading type IC card with pre-enhancement function Non-contact reading type IC card with pre-enhancement function

1988-01-28

1989-02-07

Pitts, Harold I.

Registers

Records

Conductive

235487, G06K 1906

Patent

active

048033502

ABSTRACT:
An IC element is incorporated in a card substrate, and includes at least a memory in which data can be stored and from which it can be read out. A pre-processing section is incorporated in the card substrate, to receive an output from the IC element. The pre-processing section pre-enhances readout data from the memory of the IC element, so as to substantially attenuate high-frequency components of the data. A transducer is incorporated in the card substrate to receive an output from the pre-processing section. The transducer generates a magnetic field corresponding to the data read out from the memory of the IC element and supplied via the pre-processing section.

REFERENCES:
patent: 4298793 (1981-11-01), Melis

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