In telecommunication, the term black facsimile transmission has the following meanings:
- In facsimile systems using amplitude modulation, that form of transmission in which the maximum transmitted power corresponds to the maximum density of the subject.
- In facsimile systems using frequency modulation, that form of transmission in which the lowest transmitted frequency corresponds to the maximum density of the subject.
Famous quotes containing the words black and/or facsimile:
“A little black thing among the snow
Crying “’weep, ‘weep,” in notes of woe!
“Where are thy father & mother? say?”
“They are both gone up to the church to pray.”
—William Blake (1757–1827)
“God gave the righteous man a certificate entitling him to food and raiment, but the unrighteous man found a facsimile of the same in God’s coffers, and appropriated it, and obtained food and raiment like the former. It is one of the most extensive systems of counterfeiting that the world has seen.”
—Henry David Thoreau (1817–1862)