| 摘要 |
<p>The invention concerns an audiometry method on television decoder which consists in loading in each decoder a software storing data on the selected programmes and on the watching times, in non-volatile memory, and a concealed menu for activating said software; then in periodically setting up communication between a modem of the decoder and a service centre through the telephone network or a cable network also used for programme reception and transmitting the data contained in the non-volatile memory, under the software control.</p> |
