INTERACTIVE TELEVISION SYSTEM

摘要

Interactive television system enabling the user to interact with the system and to participate actively in television programmes such as quiz, commercials, opinion polls etc. Each subscriber station (3) includes a television receiver (18), a decoder (30) connected to said television receiver (18) and suitable to read the messages (TTX) transmitted together with the video signal, and to display them in impression on the television screen (18), an infrared remote control (20) with at least four "navigation" keys and a confirmation key, and a device (10) for direct and automatic access to the telephone line (LT) radio-frequency connected to said decoder (30).