[opendtv] Humble cell morphs into device for all seasons
- From: Monty Solomon <monty@xxxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Tue, 25 May 2004 21:42:03 -0400
Humble cell morphs into device for all seasons
By Yoshiko Hara
EE Times
May 24, 2004
TOKYO, Japan - The mobile phone of the future was demonstrated, in
bits and pieces, at the Business Show Tokyo 2004 earlier this month.
While no single model included all the potential features of upcoming
phones, various units had enough of them to prove that the
next-generation handset is being transformed into personal
entertainment/information devices.
Some received radio and TV broadcasts; some played music, videos and
games. Others functioned as electronic money or personal
identification systems, with the help of wireless ICs; still others
accessed the Internet to remotely control home robots.
Of all those functions, digital TV reception linked with data
transmission is expected to be one of the killer applications that
will increase the average revenue per user for carriers. Europe's
heated DVB-H activity shows that TV reception is an attractive
feature for consumers (see story, page 18), but beaming it through a
built-in tuner does not contribute to a mobile carrier's profits.
That's why carriers are interested not only in delivering terrestrial
digital TV broadcasts, but also in downloading program-related data.
Japan's terrestrial DTV service can broadcast for mobile service and
for stationary reception of high-definition programs. Mobile
broadcasts employ 1/13 of a 6-MHz piece of bandwidth that is assigned
to each broadcaster. The rest of the 6-MHz band is used for one
channel of high-definition or three channels of standard-definition
programming.
Broadcasters plan to begin mobile digital TV broadcasts in Japan
sometime next year. In the beginning, they will simulcast regular TV
broadcasts. To make use of the limited bandwidth available for mobile
broadcasting, H.264 encoding will be used to compress video data.
...
http://www.commsdesign.com/showArticle.jhtml?articleID=20900447
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