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交互式电视交互式电视（ｉｎｔｅｒａｃｔｉｖｅｔｅｌｅｖｉｓｉｏｎ）是一类采用非对称双工通信模式的新型电视业务：电视台（或信息中心）通过宽频带（或高数码率）的信道，将一路或多路电视节目发送给终端用户；而终端用户则通过一个窄频带（或低数码率）的信道，将查...
Interactive television Interactive television is a new type of television service that uses asymmetric duplex communications: A television station (or message center) sends one or more television programs over a wideband (or high bit rate) channel To the end user; And the end user through a narrow band (or low bit rate) channel, will check ...