SCANNER The video head drum.
SCANNING The horizontal and vertical movement of the electron beam in the camera or TV tube.
SECAM Sequential Couleur a Memoire; the French color TV system.
SECOND GENERATION See Generation. SEG Special Effects Generator.
SEGMENTED SCAN RECORDING A system of recording that uses 1 video head to scan both fields of video information.
SEPARATE MESH A fine mesh screen located inside the Vidicon tube which helps control the target-area scanning.
SHADOW MASK A large screen containing half a million holes which helps focus the color electron beams inside a color TV set.
SHOOTING RATIO The amount of tape recorded relative to the amount of tape actually used.
SIGNAL Information transposed into electrical
SIGNAL READOUT ELECTRODES A device used inside the Sony Trinicon tube to derive the color signals.
SIGNAL-TO-NOISE RATIO The amount of visible "snow or noise" in a given picture relative to the actual picture signal. The higher the signal-to noise ratio, the better the picture.
SKEW The tape tension.
SKIP FIELD RECORDING A recording process whereby only one field is reproduced twice instead of reproducing both fields and interlacing them.
SLANT TRACK See Helical Scan.
SLIP RINGS Physical or mechanical means of transferring the video signal from the video head to the VTR electronics.
SMALL-FORMAT The small width videotape equip-
ment such as 1/4-inch, 3/4-inch, 3/4-inch and 1-inch.
SMPTE The Society of Motion Picture and Television Engineers. A standards setting committee.
SOLENOID An electromagnetic circuit control system.
SOLID STATE Electronic circuitry that contains no
SPECIAL EFFECTS GENERATOR (SEG). A video-mixing device that allows switching between several cameras and a variety of special effects such as dissolves, fades, inserts, wipes, etc.
STRIPE FILTER A single color camera tube where sequential stripes on the face of the tube are used to derive the red, blue, and green and luminance signals.
SWITCHER A video switching and mixing device.
SYNC Synchronization; the timing pulses that drive the TV scanning system.
SYNC GENERATOR An electronic circuit which produces the sync pulses.