| 摘要 |
<p>A card sound device has a card substrate on which provided are a combination of a sound signal input part to which a sound signal is inputted from outside and a sound generating part for generating sound corresponding to the sound signal inputted into the sound signal input part, a combination of a sound collecting part for collecting outside sound and converting it to an electric signal and a sound signal output part for outputting the electric signal generated by the sound collecting part to the outside, or both of the combinations. The sound generating part generates sound by vibrating the card substrate itself according to the sound signal inputted into the sound signal inputting part. The sound collecting part collects sound by converting the vibration of the card substrate into an electric signal.</p> |
