Jim - Great article, a little bias possibly, but it can bring one up to speed in a hurry, if they are new to ADSL..
I want to make a few comments on pieces of the article, I'm sure many more areas can be discussed too...
iworld.com
Article "Enter ADSL"
<<<The DMT spectrum is divided into 256 4-KHz carriers. A variable number of bits is loaded onto each carrier independently. Thus, there are many channels and the technology appears to be more flexible as a result.
DMT prototype transceivers have shown high transmission speeds, simplicity, reliability, and good line noise characteristics. DMT appears to be faster than CAP at distances both close to, and farther from, the central switch. DMT also seems to be more robust, capable of handling shortcomings in the phone network.
Although DMT has been around as a concept for some time, in 1992 a team in the Stanford Electrical Engineering labs led by John Cioffi developed the technology to make it practical. As a result of these efforts, a new ADSL company called Amati was formed, with Cioffi as its chief technology officer. Amati holds the patents on some important chunks of DMT technology; its stock has moved from $5 in November of last year to $36 in May. [Editor's note: After a promising, highly touted debut, confidence in Amati eroded causing its stock to plunge throughout June and July. At press time, Amati is trading for $11 per share.] >>>>
JW adding:
Dr. John Cioffi is the founder and Vice President of Amati Communications Corp. He is also the Chief Technology Officer (CTO), and Director of the Product Design & Development Team, since 1991.
Dr. Cioffi is a world-recognized leader in DSP Chip Technology, and he is the Lead Inventor of the Amati Technology.
Dr. Cioffi has also been a Professor of Electrical Engineering at Stanford University since 1986.
Prior to Stanford, Dr. Cioffi served on the technical staffs of Bell Laboratories and IBM's ? Research Laboratories.
? = could not translate the missing word while transcribing from video tape.
Does anyone know if Bell Labs is directly tied with Bellcore Labs?
<<<ADSL is the brain-child of Bellcore Labs of Morristown, N.J., the biggest research consortium in the United States, jointly owned by the seven regional Bell operating companies (RBOCs). Since Bellcore's creation in 1984, it has been awarded 410 U.S. and 114 international patents. In addition to ADSL, Bellcore is the birthplace of ISDN
(Integrated Service Digital Network). >>>>
Now read the different spins David Zgodzinski or the editor, puts on Westell and then Amati:
<<<Westell is confident the CAP standard will be adopted by enough telephone companies to make its FlexCAP business flourish. The stock market agrees, with Westell's stock rising from under $20 in January to $85 in May. [Disappointing earnings combined with marketwide jitters over the high-tech industry have caused Westell's stock to drop sharply in recent weeks. Westell is currently at $24 per share. --Ed.] >>>
He forgot to mention WSTL's split? Then, from it's split price, it fell to 20. Please note Amati and WSTL were peaking at the same time. The market dragged them both down. So why does he say:
<<< ". [Editor's note: After a promising, highly touted debut, confidence in Amati eroded causing its stock to plunge throughout June and July. At press time, Amati is trading for $11 per share.] "
"[Disappointing earnings combined with marketwide jitters over the high-tech industry have caused Westell's stock to drop sharply in recent weeks. Westell is currently at $24 per share. --Ed.] " >>>>
Should this be construed as a bias?
It is an excellent article, and he does denote that comments I point to are the Editors. Although he nevers mentions MOT, or trials Down-Under . Tie me Kangaroo down Sport, tie me Kangaroo down... Opps!
JW@KSC
Note: Other articles on the same page are worth a read too.
iworld.com |
