| 释义 |
video frequency
video frequency n (Electronics) the frequency of a signal conveying the image and synchronizing pulses in a television broadcasting system. It lies in the range from about 50 hertz to 8 megahertz video frequency
video frequency[′vid·ē·ȯ ′frē·kwən·sē] (communications) One of the frequencies existing in the output of a television camera when an image is scanned; it may be any value from almost zero to well over 4 megahertz. AcronymsSeeviewfinder |