IC card, IC card processor and IC card system to improve...

Details IC card, IC card processor and IC card system to improve... IC card, IC card processor and IC card system to improve...

2008-03-18

2008-03-18

Walsh, Daniel (Department: 2876)

Registers

Records

Conductive

C235S449000, C235S451000, C370S343000, C370S206000, C370S204000

Reexamination Certificate

active

10969509

ABSTRACT:
An IC card system for transceiving data signal between an IC card processor and an IC card in the manner of non-contact are provided. The IC card modulates the signal to be transmitted to the processor in the manner of Quadrature Amplitude Modulation and generates the modulated signal. A card reader demodulates the signal received from the IC card in the manner of QAM. The rate of the data signal transmitted from the IC card to the card reader is improved.

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