MPH Proponents Document the Technology for ATSC

LG Electronics and Harris Corp. announced Wednesday they submitted technical details on the MPH in-band mobile DTV system to the Advanced Television Systems Committee (ATSC).

The Harris news release said the 80-page document discloses all the technical details on the MPH transmission/modulation technology. Harris said the document “also includes extensive descriptive information to enable reviewers to understand, evaluate and appreciate its many unique features.” According to the news release, the document “will become the basis for an ATSC Candidate Standard that meets and exceeds the ATSC’s mobile-handheld DTV goals by simply deleting the descriptive information.”

Information on two candidate systems for compressed audio—Neural-Extended Adaptive Multi-Rate Wideband (AMR-WB+) and High-Efficiency Advanced Audio Coding (HE-AAC-v2)—is included in the submission. These systems, the proponents say, “will each meet the low-bit-rate and high quality requirements associated with the MPH enhanced streams.” The system uses the H.264 MPEG-4 standard for video compression.

In addition to the documents covering the physical layer, the MPH proponents also submitted documents in support of a choice for the Management Layer, outlining two approaches—one based the current ATSC MPEG transport stream and an approach using Internet protocol (IP).

This system has been under development for two years at LG Electronics DTV Laboratory in Seoul, South Korea and at LG’s Zenith Lab near Chicago.

Doug Lung

Doug Lung is one of America's foremost authorities on broadcast RF technology. He has been with NBC since 1985 and is currently vice president of broadcast technology for NBC/Telemundo stations.