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Trimble Navigation Limited
935 Stewart Drive
Post Office Box 3642
Sunnyvale, CA 94085
1.408.481.8000 phone
1.408.481.7781 fax

  NEWS RELEASE

 
Trimble and Rosum Team to Develop Universal Positioning Technology

Joint Technology to Allow Acquisition of Location Information in Difficult Environments—
Urban Canyons, Parking Garages and Even Indoors

SUNNYVALE and REDWOOD CITY, Calif., Feb. 27, 2003 -- Trimble (NASDAQ:TRMB) and Rosum Corporation today announced that they have signed a technology development and licensing agreement to combine Trimble's Global Positioning System (GPS) technology and Rosum's television-based positioning technology (RPT). The combination is expected to provide a universal solution for indoor and outdoor positioning, capable of working in far more areas than previously possible with either technology on its own. Terms of the agreement were not disclosed.
 
Having a universal method of determining location is particularly important to a variety of both indoor and outdoor emerging, high-volume applications such as supply chain management and asset tracking, logistics and inventory control, security and various automotive uses. Trimble expects to develop a range of robust products that combine a number of positioning and communication technologies, including television signals, to address these location-aware applications.
 
"GPS works extremely well for most outdoor applications. But when working inside buildings, in obstructed areas or difficult urban environments, even assisted or enhanced GPS has its limitations," said Dennis Workman, vice president and general manager of Trimble's Component Technologies Division. "Over the years, Trimble has successfully used sensors such as gyros, odometers and speedometers as well as differential techniques and digital signal processor designs to increase the robustness of GPS technology. We see the Rosum technology as yet another innovative solution to augment Trimble's portfolio of positioning technology."
 
Rosum technology uses high-power, high-bandwidth signals broadcast by analog or digital television stations instead of signals from the GPS satellites to determine position. Not only do these television signals already cover urban areas, they also penetrate deep into buildings and structures. These characteristics, combined with the global coverage of GPS, are expected to provide a truly universal and reliable method of determining location.
 
"In terms of overall coverage, broadcast television is an ideal complement to GPS," said William Dussell, director of integrated products for Trimble's Component Technologies Division. "For instance, broadcast television signals are concentrated in urban areas and can easily penetrate buildings. Conversely, the global coverage of GPS becomes critical when broadcast television signals become less dense and weaker beyond metropolitan areas. The technologies are an ideal combination for reliable positioning."
 
"For Rosum, the selection of the right strategic partner is very important," said Matthew Rabinowitz, Rosum's CEO. "Trimble's experience in GPS technology, manufacturing design and reputation for integrity made them an ideal partner for bringing our technology to the market. The Rosum/Trimble device is expected to offer accuracy, robustness and speed of acquisition which are unparalleled in the industry, and which will be crucial to many service offerings. We are proud to be working with Trimble."
 
About Television Signals for Positioning
 
Rosum has developed a technology that uses television signals to provide accurate, dependable mobile positioning. The Company's simple system architecture uses fundamental advantages in high power TV signals to provide users with reliable and accurate positioning, with low acquisition times, indoors and in urban areas where other systems cannot work dependably. In addition, Rosum technology is able to provide real-time tracking with minimal power and processing demands. The advantages of television for positioning include: megawatt-level transmitter powers, wide bandwidth embedded synchronization signals, many signals from different directions for accurate triangulation, no ionospheric effects, no transmitter Doppler, and prime UHF spectrum for building penetration.
 
About Rosum Corporation
 
Rosum is engaged in the business of research, development, design and marketing of digital chips and infrastructure products for positioning systems based on broadcast television signals. Rosum's chairman, Dr. James Spilker, was the co-architect of the GPS system and recently co-developed the new L5 civilian GPS signal. Rosum owns or controls certain patent rights and patent applications relating to the Rosum Positioning Technology (RPT), a unique method for using television signals to position. Founded in 2000 and headquartered in Redwood City, Calif., Rosum is the only company to successfully use digital television (DTV) signals to provide mobile positioning information.
 
For more information visit:
www.rosum.com.
 
About Trimble
 
Trimble is a leading innovator of Global Positioning System (GPS) technology. In addition to providing advanced GPS components, Trimble augments GPS with other positioning technologies as well as wireless communications and software to create complete customer solutions. Trimble's worldwide presence and unique capabilities position the Company for growth in emerging applications including surveying, automobile navigation, machine guidance, asset tracking, wireless platforms, and telecommunications infrastructure. Founded in 1978 and headquartered in Sunnyvale, Calif., Trimble has more than 2,000 employees in more than 20 countries worldwide.
 
Certain statements made in this press release are forward looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, and are made pursuant to the safe harbor provisions of the Securities Litigation Reform Act of 1995. Actual results may differ from those set forth in this press release due to certain risks and uncertainties, including the ability to successfully complete the joint technology development and achieve market acceptance of the proposed new product offerings. Among other things, customer acceptance, economic trends and competitive issues may have an adverse effect on the success of the development efforts. These and other risks are detailed from time to time in reports filed with the SEC, including Trimble's respective quarterly reports on Form 10-Q and its annual report on Form 10-K.
 

Investor Relations:  Investor Relations of Trimble: 408-481-6914

Media Contact:   LeaAnn McNabb of Trimble: 408-481-7808

Business Development:  Matthew Lewis of Rosum Corp.: 650-421-4040



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