| 摘要 |
It includes a microcontroller (1), an Audio board (6), and a COFIDEC circuit (15). The microcontroller continuously calculates the averages of 16 successive samples on each of the two channels, transmission and reception (16,4). From this it deduces the channel to be validated and attenuates the other by means of tables provided accordingly in its ROM memory. …<IMAGE>… |
