SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Non-Tech : Amati investors
AMTX 1.500+3.4%3:59 PM EST
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  
To: Reza Daftari who wrote (6407)11/30/1996 10:04:00 PM
From: JW@KSC   of 31386
 
Reza - SDMT

>>>In Amati's annual report they mention SDMT(enhanced low power version of DMT). I wonder if you have more details on what "S" stands for and how it is enhancing DMT(besides lower power).<<<<<<

If what I've read in the past is correct, the "S" = Synchronized.

From what I've seen so far SDMT is being aimed at two directions:

1. Synchronized DMT a variation of DMT for multipoint to point transmission will be proposed to the ATIS committee T1E1.4 for VDSL (upto 51.8 Mbit/s on hybrid fiber).

2. SDMT is also being proposed to the IEEE committee 802.14 for the upstream channel of an HFC system. (Cable Modem)

SDMT from what little I know, is a method of synchronization, which allows the efficient combination of signals from multiple transmitters without the use of guard bands in either the frequency- or time-domain. Included is a protocol for controlling access to the shared channel by these transmitters, which may have widely varying needs for data rates and formats.

BTW : For those who are not familiar with Amati's deals with Ericsson
Amati supplies the main chipsets for Ericsson's Cobra cable modems.

I hope this helps answer your question Reza.
Thanks for speaking up.

I loved the characterization of DMT on pg 7.
JW@KSC
Report TOU ViolationShare This Post
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  

HomeMailHotSubjectMarksPeopleMarksKeepersSettings
Terms Of UseContact UsCopyright/IP PolicyPrivacy PolicyAbout UsFAQAdvertise on SI
© 2025 Knight Sac Media.  Data provided by Twelve Data, Alpha Vantage, and CityFALCON News