
Glossary
Color Difference Signals Signals used by color television systems to convey color information in such a way that the signals go to zero when there is no color in the picture.
Component Video Video which exists in the form of three separate signals, all of which are required in order to completely specify the color picture. For example, R, G, and B; or Y,
Composite Video A single video signal containing all of the necessary information to reproduce a color picture. Created by adding quadrature amplitude modulated
CW Continuous Wave. Refers to a separate subcarrier sine wave used for synchronization of chrominance information.
dB (Decibel) A decibel is a logarithmic unit used to describe signal ratios. For voltages, dB = 20 Log10 (V1/V2).
DC Restorer A circuit used in picture monitors and waveform monitors to clamp one point of the waveform to a fixed DC level.
Demodulator In general, this term refers to any device which recovers the original signal after it has modulated a
(1)An instrument, such as a TEKTRONIX 1450, which takes video in its transmitted form (modulated onto the picture carrier) and converts it to baseband.
(2)The circuits which recover
1740A/1750A Series Waveform/Vector Monitor User Manual |
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