| 摘要 |
<p>An audio information exchange arrangement including a transducer (14) for converting signals between electric and audio forms. The arrangement is packaged substantially two-dimensionally in a card of predetermined dimensions and minimal thickness to maintain structural flexibility and rigidity. The audio card (9) is conveniently compact, portable, and durable. The transducer (14) of the audio card (9) includes a transmitter for producing audio signals, and an audio receiver for receiving audio signals.</p> |
