| 摘要 |
<p>The portable accessory converts speech into a data stream and deposits it in separate, hand held apparatus Additionally an end-to-end scrambling takes place, for preventing tapping by third persons. The apparatus. is coupled, via a data interface, to inner modem of mobile telephone. The apparatus contains a microphone, or loudspeaker, electric connection for headset, or earpiece, or microphone terminal, possibly of radio type.</p> |
