| 摘要 |
<p>The invention concerns a method and a memory or chip card for transmitting acoustic signals. The card (1) incorporates at least an electronic control micromodule (MC) comprising in particular processing circuits (CT) and a storage (M) wherein are registered binary data, and an excitation device (5) connected to the micromodule (MC) for converting the binary data into acoustic signals and a vibrating membrane coupled with said excitation device (5) for transmitting said acoustic signals. The card is characterised in that the vibrating membrane is constituted by the card (1) itself. The invention is particularly useful for transmitting on a telephone line binary data by acoustic coupling with a telephone.</p> |
