Color television signal including auxiliary information

Details Color television signal including auxiliary information Color television signal including auxiliary information

1976-09-02

1979-01-09

Martin, John C.

Facsimile and static presentation processing

Static presentation processing

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358 19, 358147, H04N 946, H04N 938, H04N 704

Patent

active

041341279

ABSTRACT:
A color television system, such as the NTSC system, in which at least a part of the chromatic information is transmitted as suppressed carrier amplitude modulation of a subcarrier, and a subcarrier burst is inserted in the signal as a reference signal for use in demodulating the signal in which the subcarrier bursts are suppressed from some of the lines of the T.V. signal and replaced by signals carrying additional sound or picture information such as emergency messages, newsflashes or the like.

REFERENCES:
patent: 3162838 (1964-12-01), Sauvanet
patent: 3466387 (1969-09-01), Rout
patent: 3493674 (1970-02-01), Houghton
patent: 3716656 (1973-02-01), Lambert et al.
Maegele, "Digital Transmission of Two Television Sound Channels in Horizontal Blanking", Journal of SMPTE, vol. 84, Feb. 1975. pp. 68-70.
Gassman, "Twelve Sound Channels During the Vertical Sync Interval of the Television Signal", IEEE Trans. Broadcast and TV Receivers, USA vol. BTR-16, No. 4, Nov. 1970, pp. 318-324.
Fink, Television Engineering Handbook, McGraw-Hill, 1957, pp. 2-26.

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