Method for transmitting regionally different information in a common-wave network

摘要

In the course of increasing improvement of the transmission quality in broadcast media, the introduction of digitisation is also intended for sound radio. For this reason, a digital transmission method called "Digital Audio Broadcasting" (DAB) has been developed. In this method, the programmes offered are transmitted, for example, in common-frequency mode throughout the country. In order to be able to distinguish between certain transmitters or regions, however, it is known to let different transmitters transmit different identifications on additional single-carrier frequencies which are regionally different. The novel method makes it possible to transmit information which is regionally different in addition to the current sound radio programme. This does not require any additional transmission bandwidth. In the receiver, this information, if necessary supplemented by other information stored in the receiver, can be indicated to the user or used inside the device. As a result, traffic radio announcements, for example, can be transmitted to the user as required, or a message can be output stating in which geographic region the user is currently located. The novel method can be used in digital audio broadcasting. IMAGE