| 摘要 |
In order to provide a network database easy to be accessed by the general public, a network database system of the present invention has a navigation video for guiding a user to access a database center, the navigation video comprising: means for displaying a video picture of a video signal prepared for presenting introduction of data stored in a database of the database center; means for decoding guidance information for accessing the database, the guidance information multiplexed in the video signal; means for accessing the database by way of the database center, communicating with the database center through a network according to the guidance information, when indicated by the user; means for displaying messages according to the guidance information and information transmitted from the database center; and means for transmitting, to the database center, data input by the user according to the messages. |
