| 摘要 |
<p>PURPOSE:To secure the centralized monitor for several TV relaying broadcast station in the central monitor control unit by securing the selective display for the operating state of each TV relaying broadcast station based on the received coding information and under the control of the station code. CONSTITUTION:Monitored end offices 2-1-2-n are provided to TV relaying broadcast stations 1-1-1-n. The signal showing the operating state of each station is coded, and the coding information together with the station code is inserted into the vertical flyback time of the broadcast signal for transmission. Then monitor control end station 3 samples the coding information and transmits it to central monitor unit 9. At unit 9 the operating state is displayed selectively for each TV relaying broadcast station based on the received coding information and under the control of the station code. As a result, the centralized monitor becomes possible at unit 9 for several broadcast stations 1-1-1-n.</p> |
