video frequency


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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
References in periodicals archive ?
It is distinguishes based on B/S pattern long-distance video frequency supervisory system between the traditional C/S pattern system, after in other words, the Web technology, the IP multicast technology as well as the so-called JMF technology all unifies through the real-time transmission technology and the Applet technology realizes together the video frequency data long-distance control and transmission, so long as this system has the browser to be possible to realize the majority of the customer operation is opposite is more convenient in the traditional C/S pattern system, moreover raised the network use factor enormously.
Through the JMF technology and the basic video frequency gathering card may the signal from the matrix machine transmission to the system server also needs to use the multi-thread technology as well as double cushion technology in transmission process carries on the compression to the video frequency, like this may promote the efficiency of compression, reduces CPU the period of revolution.
The platform motion during the time-divided transmitting-receiving procedure should be considered in the video frequency echo signal [S.