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Technology Stocks : Time Domain - The new Wireless Medium -- Ignore unavailable to you. Want to Upgrade?

To: PistolPete who wrote (27)	4/14/1999 11:17:00 AM
From: Andretti	Respond to of 185

Here's some good dialogue re: Time Domain from the George Gilder thread: techstocks.com To: +synchro (1206 ) From: +Bernard Levy Saturday, Apr 10 1999 2:19AM ET Reply # of 1249 Hi synchro: The Time Domain ultrawide band wireless technique is completely different from CDMA. It relies on the transmission of extremely short pulses, which are so short that they can be resolved among multipath arrivals. Some of the impulse radio schemes do not rely on any modulation of any kind to generate the pulses, which removes a lot of the complexity in transceiver design. I have not followed the patent dispute with LLNL carefully, but my perception is that the key developments in impulse radio did not originate from LLNL, but from Bob Scholtz and his research group at USC. He has a form of association with Time Domain (consultant or more), so that I am very skeptical about the validity of LLNL patent claims. As you may have noticed the FCC is considering the allocation of spectrum for impulse radio. ____________________ Message 8836352 To: +synchro (1211 ) From: +Clark Hare Sunday, Apr 11 1999 2:34AM ET Reply # of 1249 Synchro - Judging from USA Today's description of the various uses of pulse radio, it sounds like it is perfect for ultra-low power, miniature wireless cellular phones This technology is indeed ideal for some things, but cell phones is probably not one of them. See: techstocks.com. for info on the general technology and see messages.yahoo.com. for a critique of the article itself. Just FYI. Also note that there are other problems with ultra-wideband like the fact that the frequencies near 2GHz will be much more attentuated then the ones near 100 MHx (for example) and this requires compensation, especially at distances of 20 miles (?) or more. Clark - to be continued -

To: PistolPete who wrote (27)	4/14/1999 11:28:00 AM
From: Andretti	Read Replies (1) \| Respond to of 185

- more from George Gilder thread: techstocks.com To: +synchro (1206 ) From: +George Gilder Tuesday, Apr 13 1999 6:26PM ET Reply # of 1249 I like the technology concept, but I do not appraise patent projects without even the near prospect of significant products. Time Domain speaks of use in cellular phones in ten years. That is another way of saying they don't have the slightest idea. Companies that stress patents (ie, the ability to stop other companies from doing the hard work of implementation) tend to be lawyer intensive and turn me off. Time Domain apparently has some uses in sensors, though, and its wideband, low power does fit my "wide and weak" paradigm. - that's all folks! -