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From: hes@ccvr1.cc.ncsu.edu (Henry E. Schaffer)
Newsgroups: comp.dcom.telecom
Subject: Re: TASI Acronym?
Message-ID: <11689@accuvax.nwu.edu>
Date: 4 Sep 90 12:31:30 GMT
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X-Telecom-Digest: Volume 10, Issue 618, Message 2 of 8


  [in a section on TDM] "... to TDM several speech channels by taking
advantage of pauses between words and statements.  Utilizing this
principle, a Time Assignment Speech Interpolation (TASI) system is
used on many overseas channels to effectively increase the capacity of
the channels.  Again, to avoid problems with more simultaneous talkers
than available channels, the number of talkers and channels should be
rather large (100 or so).  Obviously, the switching in such a scheme
must be very rapid, and the resulting complex equipment is not
attractive except for use on expensive channels such as overseas
applications."

 From Transmission Systems for Communications, 4ed, 1970, Bell Labs.
Since this reference is 20 years old, the costs and tradeoffs have
changed.


henry schaffer  n c state univ