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:
“How strange a vehicle it is, coming down unchanged from times of old romance, and so characteristically black, the way no other thing is black except a coffin—a vehicle evoking lawless adventures in the plashing stillness of night, and still more strongly evoking death itself, the bier, the dark obsequies, the last silent journey!”
—Thomas Mann (1875–1955)
“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)