System for encoding and decoding video signals

摘要: A system is described which makes use of the fact that in a raster scanned television high degree correlation exists both luminance and chrominance signals pair adjacent lines. Because this correlation, difference between two lines usually much smaller than signal either line alone, requires less bandwidth. carrier amplitude modulated by average value lines, while phase The bandwidth resulting comparable to single line. Since information are being transmitted, however, it would be possible take twice as time transmit them when only transmitted. Stretching axis way results factor about reduction Also, eye has very poor resolution for color, simple used hue saturation. color saturation After synchronous demodulation carriers, inverse operations utilized reconstitute signals.