Interactive DMB System - Field Trial

Digital multimedia broadcasting (DMB) is a service that is based on digital audio broadcasting (DAB). The Institute for Media Technology operated a DAB test transmitter for evaluating simple DMB applications in the last two years. Now we start a field trial at the campus of our university aiming at interactive applications. The feedback channels will be the university intern local area network (LAN) and wireless local area network (WLAN). In this paper we present the technical requirements needed for operating the whole system. One part will be a prototype USB (universal serial bus) receiver that provides the data stream to the connected personal computer. Furthermore tested applications and new applications will be discussed.