[opendtv] Mobile DTV Standard Approved
- From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
- To: "opendtv@xxxxxxxxxxxxx" <opendtv@xxxxxxxxxxxxx>
- Date: Fri, 16 Oct 2009 17:55:56 -0500
http://www.tvtechnology.com/article/88882
Mobile DTV Standard Approved
10.16.2009
The Advanced Television Systems Committee (ATSC) has announced the approval of
A/153 ATSC Mobile DTV Standard. The organization, tasked with developing DTV
standards said that the ballot, tallied at midnight Oct. 15, was "approved with
overwhelming support by the full ATSC membership."
The ATSC Mobile DTV Standard defines the technical specifications necessary for
broadcasters to provide new services to mobile and handheld devices using their
digital television (DTV) transmissions. The new services for mobile and
handheld devices are carried along with current DTV services without any
adverse impact on legacy receiving equipment. ATSC Mobile DTV was developed to
support a variety of services including free (advertiser-supported) television
and interactive services delivered in real-time, subscription-based TV, and
file-based content download for playback at a later time. The standard can also
be used for transmission of new data broadcasting services.
The Open Mobile Video Coalition (OMVC), a group of broadcasters and
manufacturers promoting broadcasters' mobile DTV efforts also recently released
a document detailing specific uses for the standard. "Development and adoption
of the ATSC Mobile DTV Standard is a major milestone in the ongoing evolution
of digital television," said ATSC President Mark Richer. "We have been
fortunate to have strong and active industry support, including thousands of
person-hours of technical volunteers, for this work which enabled us to develop
the standard in an efficient manner."
Following the adoption of the Mobile DTV standard, members of the Open Mobile
Coalition demonstrated the new television service to members of the press in
downtown Washington, D.C.
Despite a steady rain and temperatures in the low 40s, enthusiasm ran high as
journalists and event sponsors boarded a chartered bus at NAB headquarters at
midday Friday for a real world demonstration of the new Mobile DTV system. A
number of different small-screen devices were passed around for viewing the
signals from five D.C. market stations. The received images proved quite stable
during the 30 minute bus ride around downtown Washington and across the Potomac
into neighboring Virginia. Freezing and/or blocking were observed in only two
locations-while going through a tunnel and for a short while as the bus
navigated around some high-rise buildings in Rosslyn area of Arlington County,
Va.
Washington is one of three U.S. markets currently running Mobile DTV on a test
basis.
"In 2010, you'll see more stations rolling out the service," said Anne Schelle,
executive director of the OMVC. "This is not like building a cellular
network-it's very quick to roll out. There are two other cities (involved in
the testing)-Seattle and Atlanta."
According to Jay Adrick, vice president of broadcast technology at Harris, 23
U.S. stations have already purchased Mobile DTV gear and are all set for
transmitting the new service.
Handheld devices, USB port dongles, tuner-equipped DVD players and other
consumer devices for viewing Mobile DTV are expected to be on the market very
shortly also. Manufacturers are ready to show off their wares at the January
Consumer Electronics Show at about the small-screen devices find their way into
the country's retail outlets.
"You can expect to see a lot of products out there on the shelves after the
first of the year," said Megan Pollack, the CEA's senior manager for
communications. It's very exciting to see all of the digital zeroes and ones
coming together at last."
The OMVC said that the ATSC Mobile DTV Standard will enable broadcasters to
provide new services to consumers utilizing a wide array of wireless receiving
devices including mobile phones, small handheld DTVs, laptop computers and
in-vehicle entertainment systems.
Gary Shapiro, President and CEO of the Consumer Electronics Association, said,
"As a founding ATSC member, CEA congratulates ATSC on achieving this new
standard, which will help chipmakers and equipment manufacturers proceed with
product development and deployment. With the successful digital television
transition now behind us, the ATSC Mobile DTV standard gives broadcasters an
opportunity to provide consumers with the next generation of compelling
over-the-air content." "This milestone ushers in the new era of digital
television broadcasting, giving local TV stations and networks new
opportunities to reach viewers on the go," said Paul Karpowicz, NAB Television
Board Chairman and President of Meredith Broadcast Group. "This will introduce
the power of local broadcasting to a new generation of viewers and provide
all-important emergency alert, local news and other programming to consumers
across the nation."
ATSC Chairman Glenn Reitmeier added: "On behalf of the ATSC Board of Directors,
I would like to congratulate all of the ATSC member companies that contributed
to this major achievement. The ATSC Mobile DTV standard is flexible and robust,
enabling a range of services business models that create new opportunities for
broadcasters, device makers and consumers. It is particularly noteworthy that
ATSC Mobile utilizes Internet Protocol (IP), which will enable broadcast
services to be easily integrated with wireless broadband consumer devices and
applications, further reinforcing the significant role of terrestrial
television broadcasting in the media landscape for decades to come."
ATSC Mobile DTV is built around a highly robust transmission system based on
Vestigial Side Band (VSB) modulation, with enhanced error correction and other
techniques to improve robustness and reduce power consumption in portable
receivers, coupled with a flexible and extensible Internet Protocol (IP) based
transport system, efficient MPEG AVC (ISO/IEC 14496-10 or ITU H.264) video, and
HE AAC v2 audio (ISO/IEC 14496-3) coding. ATSC Mobile DTV services are carried
in existing digital broadcast channels along with current DTV services without
any adverse impact on legacy receiving equipment.
In addition to live television, the new ATSC Mobile DTV standard provides a
flexible application framework to enable new receiver capabilities. Receivers
that make use of an optional Internet connection will enable new interactive
television services, ranging from audience measurement and simple viewer voting
to the integration of Internet-based applications and transactions with
television content.
Formal development of the ATSC Mobile DTV system began in May 2007 with the
issuance of a request for Proposals (RFP). The new standard document will be
available online on the ATSC Standards page.
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