DAB+ patent information
The European patents related to the DAB family of standards expired on 18th January 2013 and DAB is now a free-to-integrate technology.
A licence fee is applicable for the AAC audio decoder used in DAB+, payable to Via Licensing: http://www.vialicensing.com/licensing/aac-overview.aspx
The DAB+ royalty that is specifically for HE-AACv2 (paid to VIA Licensing) needs to be paid only once, so if a manufacturer has an internet radio product that needs HE-AAC to handle IP streams, then that will also cover DAB+. The essential HE AAC v2 patents in the AAC pool will expire sometime during the mid-2020s