| 摘要 |
PURPOSE: To extend user's participation to the seamless interaction of a closed circuit TV system, without complicating the constitution by providing a selector with an interface for each user station in a closed circuit TV system. CONSTITUTION: Each user station 22 to 26 of the closed circuit TV system is provided with the selector with an interface 30a to 30c, to selectively interface the desired signal of synchronize-transmitted channels A to (n) to be receive- separated by an RF distribution amplifier 36. Then the program of the selected channel is displayed in a program display area, common to the TV receivers 32a to 32c of each station. By this simple constitution, capable of selecting without providing a disk, etc., for each of the stations, user's participation of the seamless interaction for the closed circuit TV system is easily extended. |
