Automatic gain control (AGC) is an adaptive system found in many electronic devices. The average output signal level is fed back to adjust the gain to an appropriate level for a range of input signal levels. For example, without AGC the sound emitted from an AM radio receiver would vary to an extreme extent from a weak to a strong signal; the AGC effectively reduces the volume if the signal is strong and raises it when it is weaker.
Famous quotes containing the words automatic, gain and/or control:
“What we learn for the sake of knowing, we hold; what we learn for the sake of accomplishing some ulterior end, we forget as soon as that end has been gained. This, too, is automatic action in the constitution of the mind itself, and it is fortunate and merciful that it is so, for otherwise our minds would be soon only rubbish-rooms.”
—Anna C. Brackett (1836–1911)
“Let the wise also hear and gain in learning, and the discerning acquire skill, to understand a proverb and a figure, the words of the wise and their riddles.”
—Bible: Hebrew, Proverbs 1:5-6.
“A “super person” is one who expects to manage a career, home, and family with complete ease, expecting to maintain a perfect job, a perfect marriage, a perfect house, and perfect control of the children.”
—Joyce Portner (late 20th century)