| 摘要 |
<p>Device used as a telephone call recorder, fully self-contained, miniaturized, using the voice control technique and transforming the succesive sounds in points on a liquid cristal screen. A decoder transforms the points in corresponding digits. The readout is achieved according to an established code. A glance at the screen is sufficient to see the number of calls, and to some extent recognize the correspondents and their intentions.</p> |
