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Technology Stocks : Qualcomm Incorporated (QCOM) -- Ignore unavailable to you. Want to Upgrade?


To: carranza2 who wrote (115771)3/18/2002 7:29:42 PM
From: JGoren  Respond to of 152472
 
"AMR" variation sounds like what cdma vocoders have been doing for more than a decade. ATT welcome to the late 20th Century!



To: carranza2 who wrote (115771)3/18/2002 7:33:32 PM
From: engineer  Read Replies (1) | Respond to of 152472
 
funny!!! AMR is just a varaible rate vocoder, which is what Qualcomm has had since 1990. I guess Rod Nelson finally bought a textbook on vocoders and now is persuing his "new idea".

NOTE: Variable rate vocoding is well covered by Qualcomm patents. that will take some careful walking by AT&T not to step on them.

One more thing. Why would AT&T and the GSM crowd spend all this money on the OLD legacy technology now when they have (as they have claimed and spent alot of press money on) WCDMA working right now and EDGE is also up and running system wide. Seems like they would be spending alot of unneeded development money on something which will be shortly obsolete.

Or is it possible that all teh WCDMA stuff and EDGE stuff was just HYPE?.....AT&T....Naw never...



To: carranza2 who wrote (115771)3/19/2002 7:25:10 AM
From: Dexter Lives On  Read Replies (1) | Respond to of 152472
 
At the physical layer, flash-OFDM is a frequency-hopped version of OFDM. Fast hopping turns flash-OFDM into a spread spectrum technology that enables average interference between cells (rather than worst case) and frequency re-use of one – achieving the same benefits as CDMA. At the same time, flash-OFDM has no in-cell interference (same as a TDMA system), making the overall system superior since it combines the most significant advantages of both its predecessors.

flarion.com

This is what AWE will be deploying; the first carrier of many... (Sprint next, given Cisco is advising their IP network purchases, and owns a chunk of Flarion).

Rob