NAB presents the Technology Innovation Award to organizations that have made a significant contribution to broadcasting and that bring advanced technology exhibits and demonstrations to the NAB Show. The Convergence TV consortium received this award this year for “For Demonstrating ATSC 3.0 Transmission of UHDTV Using Scalable Coding over Hybrid Broadcast and Broadband Paths.”

At NAB 2018, the Convergence TV Project is demonstrating the delivery of a full UHDTV service using an ATSC 3.0 broadcast path for distributing a regular HD service (2K + HDR) and an ATSC 3.0 broadband path for enhancing the service from HD to UHDTV (4K + HDR).

There is no simulcasting. The broadcast path delivers the HD signal while the broadband path delivers only the enhancement signal from HD to UHD, thanks to the use of scalable HEVC (SHVC) for audio & video compression. Both paths are fed from asingle SHVC encoder providing the base layer signal to the broadcast chain and the enhancement layer to the broadband chain.

Two receivers show the service enhancement. They are a regular ATSC 3.0 TV setdisplaying the basic HD HDR service and a PC based hybrid receiver prototype able to combine the base and enhancement layers thanks to a SHVC decoder.

This world-first demo intends to demonstrate one of the exclusive features of the ATSC3.0 system approach, i.e. the native hybrid delivery mechanism, which ensures quasi-unlimited flexibility for enhancing the user experience. .

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