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Information providing apparatus and method, information receiving apparatus and method, and transmission medium

Image Number 2 for United States Patent #6510555.

To transmit EPG information efficiently in a small volume of transmission, it is so disposed that SDTs corresponding to respective transponders are referred in an NIT stating the overall configuration of the network and necessary information for reception. In each SDT, a real channel for transmitting video signals and a corresponding dummy channel are provided in a pair, and the dummy channel is provided with a gEMT and a dEMT for stating information on events. An ETT is provided correspondingly to the real channel. In an ETT, a gEMT is caused to be referred to. In a dEMT, outline documents of events are stated, and in a gEMT information other than the outline documents of events is stated.

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