| 摘要 |
The invention relates to a chip card comprising a controllable electro-optical modulator (3) for modulating a light beam (5), which is emitted by a light source (4) and strikes upon the chip card (1). The modulation thus ensues by using a module (2) to control the modulator (3) via a line (8). The transmitted portion of the light beam (6) is received and evaluated by the receiver (7) of the chip card reading device.
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