[opendtv] New Samsung mobile TV tech trial underway in Vegas
- From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Mon, 8 Jan 2007 11:31:53 -0500
This is related to the piece Mark Aitken posted last week. It's a more
direct way for broadcasters to get their signal to small hand held
receivers than going through a separate DVB-H or MediaFLO connection,
although of course there's nothing to prevent these other schemes from
being coexisting.
Bert
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New Samsung mobile TV tech trial underway in Vegas
Dylan McGrath
(01/07/2007 8:24 PM EST)
URL: http://www.eetimes.com/showArticle.jhtml?articleID=196801707
LAS VEGAS - Samsung Electronics Co. Ltd. Sunday (Jan. 7) introduced a
new technology for enabling mobile TV in North America and said it is
conducting a trial of the technology here this week in conjunction with
the 2007 Consumer Electronics Show (CES).
According to Samsung (Seoul, South Korea), Advanced-VSB (A-VSB) is a
proposed open standard that enables broadcasters to transmit a mobile
digital TV signal on the same frequency as they use for standard
television broadcasting. The technology requires a relatively small
investment by broadcasters, Samsung said, and could be available in
mobile products as soon as 2008.
John Godfrey, vice president of government and public affairs at Samsung
Information Systems America, a U.S. subsidiary of Samsung, said an A-VSB
signal can be received in adverse conditions, such as cars traveling at
a high rate of speed. To that end, the A-VSB trial being conducted here
this being demonstrated on buses, he said. KVMY, a Las Vegas television
station owned by the Sinclair Broadcast Group, is the broadcaster
participating in the trial, Godfrey said.
A-VSB is an enhancement to the existing VSB digital television standard
approved by the Advanced Television Systems Committee (ATSC), Godfrey
said. The enhancement enables mobile devices with an A-VSB tuner to
receive the mobile TV signal, but does not interfere with the reception
by standards digital TVs, he said.
The technology can be commercially available quickly, Godfrey said,
because of a relatively low investment required on the part of
broadcasters that is likely to be "in the tens of thousands" of dollars.
Broadcasters do need to add a small amount of equipment to their
existing towers in order to deploy mobile TV via A-VSB, Godfrey said,
but do not need to invest in new towers or in new spectrum.
He said, the cost is likely to come down even more as an open market
evolves around the devices, which he called "re-multiplexers," needed to
deploy the technology. Eventually, it is possible that the technology
could be deployed by broadcasters with a software enhancement to
existing equipment, he said.
In addition to enabling mobile TV, A-VSB enables broadcasters to include
multiple "turbo coded" streams along with their main stream, allowing
signals to be strengthened and more clear, according to Samsung. The
technology also eases synchronization of broadcast signal timing of
different towers in a single frequency network, according to the
company, which can improve broadcast quality with higher uniform signal
strength throughout a service area.
Samsung said A-VSB technology is now being standardized in ATSC, and
that an ATSC-supervised lab test was conducted last November.
The company said broadcasters can implement A-VSB technology with no
impact on legacy digital TV receivers. Existing legacy receivers will
ignore the added information in the signal while continuing to receive
the main TV stream, according to Samsung.
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reserved.
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