Method for coded transmission of color television signals

Details Method for coded transmission of color television signals Method for coded transmission of color television signals

1986-01-22

1987-06-23

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 12, 358 16, 358142, H04N 1106, H04N 708

Patent

active

046757210

ABSTRACT:
In a method for transmission of color television signals, at least two color information containing signals are coded using code elements comprised of a half period or a full period of a sine wave, the sequence of code elements forming at least one essentially sinusoidal code signal stream. In one embodiment, the code elements form binary code words for conveying different types of information, as hue and saturation of a color picture element. Alternatively, each code element may have an amplitude related to the value of the information to be transmitted, as saturation of a specific primary color. Each code word may comprise a plurality of portions related to different types of information, as different primary colors, audio information and the like. Two code signal streams each forming a sine wave of the same predetermined frequency may be phase displaced by 90 degrees, superimposed and employed in a composite video signal e.g. instead of and at the same frequency as an usual color subcarrier wave.

REFERENCES:
patent: 4015204 (1977-03-01), Miyazawa
"Pulstechnik", by Kerstein and Larsen, Springer-Verlag, Berlin, 1975, pp. 263 & 264.
RCA Review, Dec. 1949, pp. 506-513.

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