- MPH (ATSC)
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- MPH has been superseded by the ATSC-M/H standard.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:
- Backward compatibility with existing ATSC 8VSB transmission and receiving equipment
- Capability to receive broadcast signals at high (mobile) speed with a single antenna
- Use of small handheld receivers without the need for multiple antennas
- Power savings in handheld receivers
- Flexibility in both data rates and robustness[disambiguation needed ]
- Data-rate [disambiguation needed ] efficiency
- Use of advanced video and audio coding
ATSC-M/H, the current standard, which uses some of the features from MPH.
- Harris Press Release, Harris Corporation, LG Electronics Announce In-Band Mobile DTV System..., http://www.harris.com/view_pressrelease.asp?act=lookup&pr_id=2105, retrieved 2007-04-05 , April 3, 2007.
Wikimedia Foundation. 2010.
Look at other dictionaries:
ATSC-M/H — is a future standard currently (as of 2008) under consideration, to allow ATSC digital television broadcast signals to be received by mobile devices. [ [http://www.atsc.org/news information/press/2007/Mobile 07.html ATSC to Develop Standard for… … Wikipedia
ATSC Standards — document a digital television format that will have replaced the analog NTSC television system [ [http://home.businesswire.com/portal/site/home/index.jsp?ndmViewId=news view ndmConfigId=1000001 newsId=20071017005469 newsLang=en Major retailer… … Wikipedia
Mobile television — DMB in South Korea Mobile television usually means television watched on a small handheld device. It may be a pay TV service broadcast on mobile phone networks or received free to air via terrestrial television stations from either regular… … Wikipedia
8VSB — is the 8 level vestigial sideband modulation method adopted for terrestrial broadcast of the ATSC digital television standard in the United States, Canada, and other countries. 8VSB is capable of transmitting three bits (23=8) at a time.… … Wikipedia
Northrop P-61 Black Widow — P 61 Black Widow A P 61A 1NO of 419th Night Fighter Squadron Role Night fighter … Wikipedia
Northrop P-61 Black Widow — Northrop P 61 Black Widow … Wikipédia en Français
Northrop p-61 black widow — Northrop P 61 Black Widow … Wikipédia en Français
RF-61 Reporter — Northrop P 61 Black Widow Northrop P 61 Black Widow … Wikipédia en Français
Estándares de Televisión Interactiva — Saltar a navegación, búsqueda Contenido 1 Introducción 2 Estándares cerrados o de propiedad privada 2.1 Media Highway 2.2 … Wikipedia Español
Westland Wessex — infobox Aircraft name = Wessex type = Helicopter manufacturer = Westland caption =A Royal Navy Wessex HU5 at Ascension Island in 1982 designer = first flight = 20 June 1958 introduced = 1961 retired = 2003 (Royal Air Force) status = primary user … Wikipedia