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Technology Stocks : Aware, Inc. - Hot or cold IPO? -- Ignore unavailable to you. Want to Upgrade?

To: Bill who wrote (4536)	10/29/1998 12:13:00 PM
From: bill c.	Read Replies (3) \| Respond to of 9236

Bill, Aware has coded their understanding of G.heavy on the ADI chip. ADI licensed from AMTX/TI a patent(s) to allow Standard Category II G.Heavy support. They will support this for an additional cost over the ADI/AWRE DMT coding. Aware has coded their understanding of a splitterless solution on the LU DSP, and a number of other chips. I haven't located where TI, ALA, PAIR, ORCTF/Fujitsu are required to pay Aware for the splitterless implementation. Here is my understanding of DMT G.heavy and G.Lite. I'll attempt to use an analogy of a highway in discussing DMT. Think of a highway with 256 lanes. Each lane can hold so much traffic. Think of the cars/trucks in each lane as kilobytes. Each lane can carry just so many cars/trucks/kilobytes. The G.heavy standard assumes upto 256 lanes of traffic, when summed together can carry ~8Meg downstream. Lets talk about noise and distance. The G.heavy standard CSA-12,000ft distance indicates 8Meg downstream X 640 upstream. As the distance increases over 12,000ft we need to start shutting down some of the lanes of traffic. The other option is to increase the signal strength, but the FCC has a limit on the signal strength, remember that 56K debate months ago. So as the distance increases, we need to shutdown some lanes. I'll use the analogy of an accident for noise. Let's say an airplane crashes "T1 line in an adjacent binder group" into our 256 lane highway. The crash causes lanes 100-200 to close, thus we get lower bandwidth. Noise can get into the system from a number of sources, but with a splitterless solution addition sources are added. When you pick-up your phone to make a call, that causes noise which may result in lane closures. For a Central Office "CO" Pairgain modem "ATU-C" to interoperate with a splitterless Aware home modem "ATU-R" we need to agree on which lanes to close and which to keep open. Aware recommended on keeping open 64 lanes with a splitterles solution, starting at lane X-through-X+64. Shutting down lanes and reducing the power so it doesn't interfere with POTS is a function of the existing T1.413. Agreeing on which lanes to close, required power reductions, filters, distance, etc requires an agreement between companies for interoperability. Without interoperability G.Lite dies. G.Lite MUST work with G.Heavy modems in the "CO". I don't see Aware getting their DWMT into T1.413 lite or heavy. Now a number of recommendations were turned away by the G.Lite group. Trellis coding, 1-bit constellation and more efficient framing. I would think these were patentable alternatives which the G.Lite group didn't view as required. Maybe I shouldn't have posted this, because I'm back to the same question.... What was added to G.Lite which Aware has a patent on?... until later.