MPH (Mobile-Pedestrian-Handheld) inband mobile digital television is a technology jointly developed by Harris Corporation, LG Electronics, Inc. and its U.S. research subsidiary, Zenith Electronics. The MPH system uses Harris Corporation’s expertise in digital broadcast systems—including transmitters, exciters, encoders and software—and the systems development, integrated circuit design and consumer electronics expertise of LG Electronics and Zenith.

MPH has been superseded by the ATSC-M/H standard.

The MPH platform allows local TV stations to deliver digital, ATSC-compatible content to mobile and video devices such as mobile phones, portable media players, laptop computers, personal navigation devices and automobile-based "infotainment systems." The service is called "in-band" because local broadcasters are providing mobile TV services as part of their terrestrial transmission within the same, existing 6 MHz channel they use for their ATSC DTV programming.

With the installation of an MPH exciter and signal encoding equipment, existing TV transmission systems can transmit a robust, digital mobile TV signal which can be received on various "MPH-ready" devices. The MPH system allows the splitting of the 6 MHz, 19.4 Mb/s of spectrum into a slice for a traditional DTV signal and a slice for MPH use, serving several types of user with a single DTV channel.

The MPH system is a multiple-stream approach, with the main service stream for existing DTV and HDTV services, and the MPH stream for one or more mobile, pedestrian, and/or handheld services. Key attributes of the MPH system include:

See also

ATSC-M/H, the current standard, which uses some of the features from MPH.


External links

Wikimedia Foundation. 2010.

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