[Embedded in Electronic Design]
The Internet Comes Home
William Wong
ED Online ID #19961
November 7, 2008
Copyright © 2006 Penton Media, Inc., All rights reserved. Printing of this document is for personal use only.
Reprints
The Widget Channel, initially presented
by Yahoo! and Intel at the Intel
Developers Forum in San Francisco in
August, marks a trend to open interfaces
that will be on connected TVs around
the world. These widgets are small icons
and applications that can be presented
along the border of the display. The
underlying system is essentially a PCstyle
platform with a Web browser on
top (see the figure).
The difference in the approach compared
to using the TV as a display for a
PC is the presentation to the target audience—
the average consumer. Forget start
buttons and mice. This is a remote-control-
driven interface. Wireless keyboards
and pointing devices won’t be prohibited,
but they will be enhancements rather
than requirements.
Unlike many closed set-top-box solutions,
this system is designed to be open.
The graphical widgets are based on standards
like HTML and JavaScript, and the
sample system runs on Linux.
WHY WIDGETS
HTML made the Internet accessible to
users and developers. Any browser can
display it, and any developer can generate
content. This is what widgets are supposed
to do as well. Yahoo! has widgets,
but other companies can offer them too,
such as hardware OEMs and third parties.
In fact, third parties will be key to
widget success.
Widgets are different, though, since
they use Javascript to make them interactive
as well as a framework to allow
them to interact with the user’s viewing
environment. The framework also could
allow features like the display of realtime
analysis during sporting events. The
game would be viewed full-screen with
an overlay, probably along the bottom
edge, with the commentary.
Of course, TV networks provide similar
features, but one size fits all and everyone
has to watch them. With widgets,
viewers have more control and selection.
This opens a range of possibilities
for user interaction in a social network
where commentary or feedback on shows
happens in real-time or may be synched
based on the material being viewed.
Developers should consider these possibilities
because platforms that can host
frameworks like the Widget Channel are
coming.
DLNA FOR DEVELOPERS
The Digital Living Network Alliance
(DLNA) framework is built on universal
plug-and-play (UPnP). DLNA is
network-agnostic, but Ethernet and Wi-
Fi are the connections of choice. Also,
DLNA addresses a host of devices, but
HDTVs with DLNA video support are of
particular interest.
What does this have to do with the
Widget Channel? Imagine an HDTV
with an Ethernet port. Better yet, go
down to the nearest electronics store and
check out Samsung’s Series 7 LCD or
plasma screen model 750, which happen
to be DLNA-compatible. These displays
effectively have a PC built-in for video
playback via Ethernet. Video would be
streamed from a DLNA media server on
the local network. The TVs could also
handle media via the Internet as well. It is
all a matter of programming the host.
It’s not much of a stretch to imagine
something like the Widget Channel being
supported on this type of platform. (It’s
not at the moment.) Streaming video
over Ethernet and interactive Widget
Channel presentations are the tip of the
iceberg. Just imagine the possibilities.
INTEL • www.intel.com
SAMSUNG • www.samsung.com
YAHOO! • www.yahoo.com
|