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PRESS RELEASE

Press Contact:
Bill Leonard, VitalCom Marketing and Public Relations
(650) 637-8212 x 201, Bill@vitalcompr.com

NTT DEVELOPS LINUX-BASED SYSTEM
TO DELIVER REAL-TIME HDTV VIDEO OVER THE INTERNET

TOKYO, JAPAN (October 24, 2001)  Nippon Telegraph and Telephone 
Corporation (NTT) has successfully developed the world's first system 
for delivering 1.5 Gbps volume uncompressed HDTV video data in real 
time over the Internet. NTT will exhibit the Linux-based system 
during the International Broadcast Equipment Exhibition (InterBEE 
2001) at the Nippon Convention Center from November 14 to 16, 2001.
The system, developed by NTT Network Innovation Laboratories, uses 
PCs with HDTV interfaces and super-high-speed network interfaces. The 
system was deployed in Tokyo between the NTT Musashino R&D Center and 
the University of Electro-Communications.  HDTV images were 
transmitted over an IP Internet connection using a 2.4-Gbps 
fiber-optic line. The processing capacity of a 1.5-Gbps uncompressed 
HDTV video data stream can support up to 70 HDTV-quality MPEG-2 
streams (22 Mbps per stream) or 150 to 300 DVD-quality streams  (5-10 
Mbps per stream). 

Low-cost implementation
The system consists of commercially available PCs and HDTV 
interfaces, running on Linux. A number of speed enhancement 
techniques were applied to the operating system and the application 
program to support Gbps-class streaming data, including optimizing 
the internal bus scheduling and memory access, and parallel 
processing using multiple processors. The system will eventually be 
capable of manipulating the processing of video contents.
NTT Network Innovation Laboratories are continuing to assess the 
protocol processing of Gbps-class streaming data over the trial 
system, while at the same time exploring the applicability of the 
system to caches, servers, and mirror sites with the ultimate aim of 
building large-capacity streaming content delivery networks.
About the NTT Network Innovation Laboratories
The NTT Network Innovation Laboratories are affiliated with the NTT 
Science and Core Technology Laboratory Group, one of NTT's three 
laboratory groups (Cyber Communications Laboratory Group, NTT 
Information Sharing Laboratory Group, and Science and Core Technology 
Laboratory Group). It is divided into two locations - in Yokosuka and 
Musashino - and is involved in research and development of network 
systems for the future.  For more information on the organization, go 
to their website at http://www.onlab.ntt.co.jp.
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 --></style><title>Linux-based systems delivers real-time HDTV on the
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<div>Jon,</div>
<div><br></div>
<div>The brief news release below details a development we believe
will be of interest to you: the first-ever system for delivering
1.5Gbps uncompressed HDTV over the Internet. Nippon Telegraph and
Telephone Corporation (NTT) will demonstrate the system in November
at IterBEE 2001. The information below will be released in Tokyo next
week. You're free to use it at any time.</div>
<div><br></div>
<div>Thanks and best regards,</div>
<div><br></div>
<div>Bill Leonard</div>
<div>bill@vitalcompr</div>
<div>650-637-8212x201</div>
<div><br></div>
<div><font face="Palatino" size="+2" color="#000000"><b>PRESS
RELEASE</b></font></div>
<div><font face="Palatino" size="+2" color="#000000"><br>
<b>Press Contact:<br>
Bill Leonard, VitalCom Marketing and Public Relations<br>
(650) 637-8212 x 201,</b></font><font face="Times New Roman"
size="+2" color="#000000"><u><b> Bill@vitalcompr.com<br>
<br>
</b></u></font><font face="Palatino" size="+2" color="#000000"><b>NTT
DEVELOPS LINUX-BASED SYSTEM<br>
TO DELIVER REAL-TIME HDTV VIDEO OVER THE INTERNET</b></font></div>
<div><font face="Palatino" size="+2"
color="#000000"><b><br></b></font></div>
<div><font face="Palatino" size="+2" color="#000000"><b>TOKYO, JAPAN
(October 24, 2001)</b>&nbsp; Nippon Telegraph and Telephone
Corporation (NTT) has successfully developed the world's first system
for delivering 1.5 Gbps volume uncompressed HDTV video data in real
time over the Internet. NTT will exhibit the Linux-based system
during the International Broadcast Equipment Exhibition (InterBEE
2001) at the Nippon Convention Center from November 14 to 16,
2001.</font></div>
<div><font face="Palatino" size="+2" color="#000000">The system,
developed by NTT Network Innovation Laboratories, uses PCs with HDTV
interfaces and super-high-speed network interfaces. The system was
deployed in Tokyo between the NTT Musashino R&amp;D Center and the
University of Electro-Communications.&nbsp; HDTV images were
transmitted over an IP Internet connection using a 2.4-Gbps
fiber-optic line. The processing capacity of a 1.5-Gbps uncompressed
HDTV video data stream can support up to 70 HDTV-quality MPEG-2
streams (22 Mbps per stream) or 150 to 300 DVD-quality streams&nbsp;
(5-10 Mbps per stream).&nbsp;<br>
<b>Low-cost implementation<br>
</b>The system consists of commercially available PCs and HDTV
interfaces, running on Linux. A number of speed enhancement
techniques were applied to the operating system and the application
program to support Gbps-class streaming data, including optimizing
the internal bus scheduling and memory access, and parallel
processing using multiple processors. The system will eventually be
capable of manipulating the processing of video contents.<br>
NTT Network Innovation Laboratories are continuing to assess the
protocol processing of Gbps-class streaming data over the trial
system, while at the same time exploring the applicability of the
system to caches, servers, and mirror sites with the ultimate aim of
building large-capacity streaming content delivery networks.<br>
<b>About the NTT Network Innovation Laboratories<br>
</b>The NTT Network Innovation Laboratories are affiliated with the
NTT Science and Core Technology Laboratory Group, one of NTT's three
laboratory groups (Cyber Communications Laboratory Group, NTT
Information Sharing Laboratory Group, and Science and Core Technology
Laboratory Group). It is divided into two locations - in Yokosuka and
Musashino - and is involved in research and development of network
systems for the future.&nbsp; For more information on the
organization, go to their website at<u>
http://www.onlab.ntt.co.jp</u>.<br>
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