Trellis coded modulation
id:
trellis-coded-modulation-243-8267974
title:
Trellis coded modulation
text:
Trellis coded modulation (TCM) is a modulation scheme that transmits information with high efficiency over band-limited channels such as telephone lines. Gottfried Ungerboeck invented trellis modulation while working for IBM in the 1970s, and first described it in a conference paper in 1976. It went largely unnoticed, however, until he published a new, detailed exposition in 1982 that achieved sudden and widespread recognition. In the late 1980s, modems operating over plain old telephone service
brand slug:
wiki
category slug:
encyclopedia
description:
Modulation scheme in telecommunication
original url:
https://en.wikipedia.org/wiki/Trellis_coded_modulation
date created:
date modified:
2024-04-25T23:02:15Z
main entity:
{"identifier":"Q557200","url":"https://www.wikidata.org/entity/Q557200"}
image:
fields total:
13
integrity:
14