America's Cup, SGI, Trimble and ESPN
Did you ever wonder how they did that spiffy computer graphics on the ESPN
broadcasts?
From: loisk@seabreeze.corp.sgi.com (Lois Kiriu)
Newsgroups: comp.sys.sgi.announce
Subject: SILICON GRAPHICS' & TRIMBLE'S TECHNOLOGIES ENHANCE BROADCAST COVERAGE OF AMERICA'S CUP SAILING
Followup-To: comp.sys.sgi.announce
Date: 10 Apr 1995 14:48:25 -0500
Organization: Silicon Graphics, Inc.
Distribution: world
Reply-To: elawson@corp.sgi.com
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SILICON GRAPHICS' & TRIMBLE'S TECHNOLOGIES ENHANCE BROADCAST
COVERAGE OF AMERICA'S CUP SAILING
ESPN, Television New Zealand and the Louis Vuitton Media Centers
Deliver Real-Time 3D Animated Graphics to Audiences Worldwide
SAN DIEGO, Calif. (April 9, 1995) -- Technology from Silicon
Graphics, Inc. (NYSE: SGI) and Trimble (NASDQ: TRMB) is
revolutionizing the way worldwide television audiences view the
America's Cup races. A combination of Trimble's satellite-based
tracking devices and powerful Silicon Graphics workstations
enables broadcasters to produce real-time animated graphics that
provide enhanced information about the races. These advanced
graphics allow television commentators to educate, entertain,
conduct "chalk talk" replays of key maneuvers, or illustrate
aspects of the sailing competition as it unfolds in real-time.
Data is gathered by Trimble's Global Positioning System (GPS)
technology which identifies the exact location of moving objects.
The Silicon Graphics technology then takes that information and
renders it into realistic, animated graphical images. Using these
technologies, Louis Vuitton has made it possible for ESPN and
Television New Zealand to produce live two- and three-dimensional
animated graphics of the races for worldwide television coverage.
In addition, the Louis Vuitton Media Centers in San Diego, Paris,
Tokyo, Sydney and Auckland are airing graphics coverage to
provide journalists writing about the races with more detailed
information.
"Even non-sailors now can understand open-ocean racing because
these real-time graphics clearly mark the race course and
illuminate the mysteries of wind and currents and strategies,"
said Forest Baskett, senior vice president of research and
development for Silicon Graphics. "Viewers can apply what they
learn from watching the animated coverage to improve their
comprehension of the live coverage of the sport."
Trimble's tracking devices use GPS, a worldwide satellite-based
radio navigation system developed by the U.S. Department of
Defense. GPS is a constellation of 24 satellites that orbit
11,000 miles above the earth. It is the most accurate global
navigation and positioning system ever produced and can determine
positions to within 100 meters.
Because tracking yacht racing requires even greater accuracy than
standard GPS can provide, Trimble has installed a special
Differential GPS (DGPS) transmitter on the highlands of Point
Loma in San Diego to sharpen the system's accuracy to two to
eight meters. The DGPS transmitter calculates and transmits
corrected GPS signals via a Motorola radio/modem communications
link to the GPS receiver on each racing yacht. After it
incorporates the corrections, the transmitter then automatically
broadcasts this more accurate position data for each vessel.
After collection, the data is processed by broadcasters on
Silicon Graphics computers running specialized software to
convert the data into animated three-dimensional graphics.
Silicon Graphics' Onyx=81 graphics supercomputers with Reality
Engine2=81 graphics supply the power and advanced features, such
as photographic texture mapping to create very life-like
animations in real-time. Each broadcaster can give a different
look and feel to its animated coverage because the software that
converts the data is customizable.
The technology builds on SailTrack=81, an Emmy award-winning,
satellite-based graphics tracking system first introduced by
Silicon Graphics, Trimble Navigation and ESPN, and used by ESPN
for coverage of the 1992 America's Cup races.
Trimble is the world leader in the emerging world commercial
markets for GPS satellite-based navigation, positioning and
communication data products. Trimble products are sold world-wide
for diverse applications including land and hydrographic survey;
GIS data acquisition; military; general, corporate and commercial
aviation; marine navigation; vehicle tracking and communications;
and mobile GPS. The company also manufactures and sells GPS
engines for the OEM market. Founded in 1978 and located in
Sunnyvale, California, Trimble has been a leader in providing GPS
solutions since 1984.
Silicon Graphics and the Silicon Graphics logo are registered
trademarks and Onyx and RealityEngine2 are trademarks of Silicon
Graphics, Inc. MIPS is a registered trademark of MIPS
Technologies, Inc.
SailTrack is a trademark of ESPN, Inc.
All other trademarks & registered trademarks are the rights of
their respective companies
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