| 摘要 |
<p>According to the invention, a special programme guide file is generated at the transmitting end of a DAB system. It is a plain-language file which could contain text and pictures. Each service provider can create a separate programme guide file. The system operator forms them into a single file to be transmitted. The file contains text and pictures visible to the user and a large amount of information intended for the application software of the receiver, invisible to the user. This information may be hidden text, instructions, algorithms. The most important data invisible to the user is a link which, upon activation by the user, links the file to another file. Thus, by activating links, the user is able to navigate in the programme guide and to quickly find and collect the information he/she is interested in, whereupon the receiver automatically composes the requested service from the subschannels of the DAB multiplex.</p> |
