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2006-06-12006.6.701:57PM페이지14001채널맥(3443-0701)
Innovative Technology
/ KDC 3D
KDC Leaps Ahead with 3D Technology
Becomes first company in the world to set up a stereoscopic 3D LCD production line
Expert Column
/ IPv6
Always-On IP Sessions Using Mobile IPv6
The writer is a senior member of the research staff in the Mobile Convergence
Laboratory of Samsung Electronics, Korea. He is a member of the IPv6
International Forum....Ed.
Korea’s KDC Corporation (www.
kdccorp.co.kr) has developed new
stereoscopic 3D technology with
Master Image Co., Ltd. which is a stereoscopic
3D display specializing company
since 2004. KDC is in charge of manufacturing
and co-marketing.
The new stereoscopic 3D display technology
has no need for 3D glasses, unlike
the existing technology which requires
wearing of 3D glasses.
The potential for the application of this
technology is huge, considering the fact
that the Korean Ministry of Information
and Communication (MIC) has announced
plans for every display in IT devices -
including telephones, TVs and recording
devices - to be changed to stereoscopic 3D
display.
In 2006, major mobile phone makers
are planned to release the stereoscopic display
phones. Many contents providers
related to broadcasting, movie, game,
advertisement, entertainment are expected
to appear.
KDC has the distinction of becoming
the first company in the
world to set up a
stereoscopic 3D
LCD production
line. Founded in
1972 as the first IT-specialized
company in Korea
KDC was the nation’s first
Modem (1200 bps) provider and
developed its own models. It
was also the first outsourcing
service provider of network integration
& maintenance (1989).
KDC has installed integrated
networks for the Korean government,
financial institutions, communications
carriers, etc.,
resulting in the most business integration in
Korea.
KDC was selected as a promising communications
company by government
authorities, and was the first to be KOS-
DAQ-listed among IT-related companies
in Korea (1996). It was the first to be ISO-
9001-approved among IT-related companies
in Korea (2000) and acquired TL9000
certification in 2005. KDC was
inaugurated as the Seoul
Metropolitan Area terrestrial
DMB business provider “DMB
Plus” in 2004 and became
Korea’s first PC-based groundwave
DMB receiver development.
Innovative products developed
by KDC include the
Stereoscopic LCD for mobile
phones etc., the Stereoscopic
large Screen System, the
Stereoscopic Kiosk (an information
terminal with HD micro
display module for 40 inch
wide screen); a Stereoscopic
Camera; a Stereoscopic Advertising Panel;
and a 3-side Conversion POP applying
lenticular technology
Stereoscopic images show left and right
images on stereoscopic display using a twolens
type of distinctive stereoscopic technology
in contrast to existing 3D (Single-lens
type)
The auto stereoscopic LCD is based on
individualized parallax barrier design technology
offering world-best viewing area
and brightness. It is customizable to various
LCD sizes and 2d/3D mode is alterable to
stereoscopic 3D mode
It provides customers Total Stereoscopic
Solution for Mobile Devices with:
* Stereoscopic LCD
* Stereoscopic Handset Camera Module
* Stereoscopic Soft-ware (e.g., viewer,
UI)
* Stereoscopic Content
KDC is clearly growing from strength to
strength with its latest success in taking an
early lead in the Stereoscopic 3D Display
Business shows that it is not only Korea’s
chaebol (conglomerates) that are leading the
world in pioneering new IT technologies.
By Daniel Soohong Park
Mobile Convergence Laboratory,
Samsung Electronics.
The next few years promise to be truly
revolutionary, with the introduction of
broadband wireless services. With the
global deployment of 3G and WiFi networks
now under way, users will be able to
experience a new range of mobility and
multimedia services - but as separate networks.
Unfortunately one major function
that has not been developed is a roaming
solution to allow users to move in and out
of various public 3G/WiFi and private
WiFi networks without session restarts.
However this is where Mobile IPv6 can
play a powerful role.
Built on IPv6, Mobile IPv6 enables the
creation of always-on IP sessions that keep
users connected as they travel from their
home to office to hot spots without having
to restart an application. Unlike Mobile
IPv4, which is based on resource intensive
signaling and tunneling, mobility was
designed into IPv6 protocol to enable
instant connectivity with minimal overhead.
Mobile IPv6 also features route optimization
that helps ensure that the best
path between the user and home network is
established so that backbone bandwidth is
never wasted. And finally because Mobile
IPv6 enables end-to-end connectivity,
users are assured security without the fear
of NAT (Network Address Translation).
For service providers and more importantly
users 3G-WiFi roaming promises to
enable always on broadband wireless connectivity.
To achieve a seamless mobility
requires us to solve a number of problems
before broadband wireless roaming
becomes a reality. First, different signaling
protocols are being used by 3G and WiFi.
Second the very high scale of the problem,
with millions of mobile user needs to be
addressed. And third, security issues surrounding
the transmittal of corporate data
need also to be solved. We also need to be
address different usage scenarios including
when a mobile node roams into a 3G
domain or when a 3G node roams into an
unknown WiFi network. In summary 3G-
WiFi roaming has the dynamics of very
complex problems.
Mobile IPv4 was developed as an addon
feature to the IPv4 protocol. Thus its
deployment requires the use of overlay
Mobile IPv4 routers, compute intensive
signaling to set up a connection and the use
of tunnels once a connection is set up. In
addition to the obvious problem of having
to buy hardware, Mobile IPv4’s signaling
and tunneling cost increase proportionally
with the number of mobile users and their
throughput requirement. Subsequently on
reason why service providers stayed away
from Mobile IPv4 deployments was that
users would likely start experiencing long
delays and/or temporary disconnections as
the performance limit of the protocol was
reached. Another problem with Mobile
IPv4 is that IPv4 addresses are logical
Identifiers that are used to represent at the
same time the destination host and its topological
position on the whole network.
Topological addressing simplifies routing
in a fixed network environment but
becomes a big problem in a mobile one.
Mobile IP permits users to remain connected
across wired (e.g., Ethernet, xDSL)
and wireless (e.g., 802.11, Cellular,
Satellite, 3G) networks while roaming
from one network to another. This permits
the user to stay connected in route to the
airport from home, rather that shutting
down their PDA/Laptop at home, and
reconnecting at the WiFi location at the airport.
Mobility in Mobile IPv6 is facilitated
by having the Mobile Node contact its
Home Agent with its current location. The
Home Agent is a router that maintains the
location state for the Mobile Node as it
moves and stores the information as a
Care-of-Address. This simple but powerful
feature which is built into the IPv6 protocol
enables all mobile hosts to be reachable
without the need of the service provider to
purchase/deploy extra devices or waste
bandwidth due to tunneling. Another powerful
feature of Mobile IPv6 is that it
enables a Mobile Node and the IP service
host also referred as a Correspondent Node
to communicate directly without going
through a Home Agent by the use of the
Mobile IPv6 Route Optimization. This is
done using a procedure defined as Return
Routability (RR) within the Mobile IPv6
protocol in which the network path
between the Mobile Node and
Correspondent Node is secured through the
RR procedure. Once this happens packets
can be directly forwarded between the
communicating parties without the need
for the Home Agent.
In summary, Mobile IPv6 offers to revolutionize
the telecommunications and
consumer products by enabling truly
always-on broadband connectivity for
mobile computing devices. When 3G is
combined with WiFi ones’ office LAN can
now have a global footprint. Looking to the
future, Mobile IPv6 promises to help create
a new generation of consumer and enterprise
application like personal content
delivery services, multimedia e-collaboration
and virtual Private Mobile Radio
replacement just to name a few. The elegance
and cost effectiveness of Mobile
IPv6 is certain to be an important element
of tomorrow’s mobile multimedia networks.
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