Control apparatus for a color television receiver

Details Control apparatus for a color television receiver Control apparatus for a color television receiver

1977-01-24

1986-05-13

Shepperd, John W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 28, H04N 946

Patent

active

RE0321486

ABSTRACT:
A color reference signal is inserted during the vertical blanking interval of a transmitted television waveform, for utilization by the described apparatus in automatically setting the hue and saturation of the display of an NTSC or a PAL receiver. The apparatus responds to the transmitted burst signal to set the frequency and phase of the sub-carrier oscillator of the receiver and, further, to the transmitted reference signal to correct any such inaccurate setting of phase as is caused by adverse conditions of networking and transmission from the studio to the receiver.

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Kim, "VIR II System", IEEE Transactions on Consumer Electronics, vol. CE-24, No. 3, Aug. 1978, pp. 200-208.
Lewis, "Proposed Subcarrier Pilot for NTSC-type Colour Television", Electronics and Power, pp. 207-208, Jun. 1964.
MacDiarmid et al., "Automatic Differential Gain and Phase Correction _for Long-Distance Colour Television Links", Wireless World, pp. 113-115, Mar. 1965.
GE Company, CA Chassis Schematic Diagram, Jan. 1966.
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Neal, "A Brief History of the VIR: Vertical Interval Reference Signal", Communications/Engineering Digest, pp. 20-25, Jan. 1976.

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