Institut für Rundfunktechnik
The Institut für Rundfunktechnik GmbH (IRT) is the research centre of the German broadcasters (ARD / ZDF / DLR), Austria's broadcaster (ORF) and the Swiss public broadcaster (SRG / SSR). It is located in Munich and is responsible for the research and standardisation of broadcasting technology. Nowadays it is focused on digital technologies.
They invented important standards such as DAB and DVB-T .
Institut für Rundfunktechnik is a founding member of the Hybrid Broadcast Broadband TV (HbbTV) consortium of broadcasting and Internet industry companies (also including SES, OpenTV, Espial and ANT Software) that is promoting and establishing an open European standard (called HbbTV) for hybrid set-top boxes for the reception of broadcast TV and broadband multimedia applications with a single user interface.