Time Domain Strengthens Ultra Wideband Patent Portfolio; Patent Granted for Groundbreaking Silicon Chip

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Time Domain Strengthens Ultra Wideband Patent Portfolio

Patent Granted for Groundbreaking Silicon Chip

HUNTSVILLE, Ala., June 3, 2002 - Time Domain Corporation, a worldwide leader in the development of Ultra Wideband (UWB), today announced that the United States Patent and Trademark Office (USPTO) has awarded the company a significant patent that secures intellectual property protection for key components of its silicon chipset. UWB is a revolutionary technology capable of enabling many new wireless products and initially targeted for personal area network (PAN) applications, such as greater than 100 megabits/second links for consumer electronics and personal computing devices. Patent number 6,304,623 is one of a total of 74 patents awarded to Time Domain, with an additional seven allowed and another 155 pending in the U.S. and internationally.

The patent covers methods and techniques for generating, positioning, searching for, and efficiently acquiring UWB pulses. UWB pulses can be generated at rates as high as billions of pulses/second. "This kind of invention contributes greatly to Time Domain's ability to deliver superior silicon chipsets to our development partners," said James R. Baker, Executive Vice President, Commercial Products for Time Domain. "The technology covered in this patent will allow previously unattainable performance in important applications, like very high-speed wireless communications networks that provide transmission rates of hundreds of megabits per second for multimedia traffic and can co-exist with other wireless services."

Time Domain was the first to miniaturize UWB technology to a silicon solution, marketed as PulsON(R). Since its founding in 1987, the company has been successful in translating its pioneering UWB development into a broad patent portfolio, thus enabling it to provide a wealth of Ultra Wideband innovation to development partners.

"Time Domain holds a substantial portion of all the awarded and pending patents in the UWB field," said Ralph G. Petroff, CEO and President of Time Domain. "This is a reflection of our commitment to continually innovate and to constantly push the technology to achieve greater and greater performance." The company's patent portfolio contains coverage of core radio technology (including patents covering multiple modulation schemes such as bi-phase, time-based, amplitude, and vector modulation), as well as breakthroughs in broad-spectrum antennas, coding, interference rejection, and various implementation techniques.

Ultra Wideband, recently approved by the Federal Communications Commission (FCC) for deployment in the U.S., is different from traditional narrowband wireless technologies that use sine waves and operate on a specific frequency. In contrast, Time Domain's PulsON(R) technology sends ultra low power pulses across a wide swath of spectrum. The resulting technology can transmit vast amounts of data at high-speed, operate robustly indoors, enable multi-channel broadband with excellent immunity to interference, and co-exist with other technologies. PulsON(R) technology-based chipsets and development modules are expected to be available this year.

To learn more about Time Domain's PulsON(R) technology, visit the company's website at www.timedomain.com.

About Time Domain Corporation
Time Domain Corporation, a worldwide leader in Ultra Wideband (UWB) technology, is developing and deploying UWB silicon solutions. The Company markets its silicon products under the brand name PulsON(R), and is currently in development on its third-generation chipset called the PulsON 300. Time Domain's Commercial Products Division is targeting the very high bandwidth, short-range personal area networking (PAN) market space, and is working with its development partners to integrate PulsON chipsets into their consumer electronics and personal computing products. The Company's Government Systems Division is producing UWB systems and prototypes for high-speed communications, precise tracking, and through-wall radar sensing for its Government customers. Time Domain maintains the premier patent portfolio for UWB technology, with 236 patents issued, allowed, or pending worldwide. Time Domain is a privately-held corporation. Further information is available on the Internet at www.timedomain.com.

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             CONTACT:
             Time Domain Corp., Huntsville
             Beth Boone, 256/922-9229
             beth.boone@timedomain.com