| 摘要 |
PURPOSE:To display various advertisements with conventional broadcast, by generating an advertising video and audio signal, receiving the signal at a TV receiver to perform advertisement for a TV receiver equipped in hotels. CONSTITUTION:Conventional broadcaset electromagnetic waves 1 are applied to an electromagnetic wave mixer 3 together to mix with advertising electromagnetic waves 2a of a prescribed vacant channel from an advertising electromagnetic wave generator 2. The waves 1, 2 mixed at the mixer 3 are applied to a home-use TV receiver equipped in a hotel. The receiver 4 is provided with a rotary switch 6 which is interlocked with a channel selection switch 5 and generates an output of H level when the switch 5 selects a vacant channel. A coin deposition detector 7 connected to the receiver 4 detects deposited coins and controls a power supply throwing device 8. Depending whether coins are deposited or not, the video and audio of the advertising broadcast is received on the selected channel. |
