Signal separating apparatus

Details Signal separating apparatus Signal separating apparatus

1990-08-03

1992-09-08

Shepperd, John W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 978

Patent

active

051463172

ABSTRACT:
In the NTSC color television system, a signal having a medium level in the three signals of the bands the color sub-carrier frequency of neighboring three scanning lines is substracted from the signal of the central scanning line of the three scanning lines, the resultant signal is a luminance signal containing no cross luminance, even if the composite video signal in the three scanning lines does not maintain vertical correlation.

REFERENCES:
patent: 4524382 (1985-06-01), Tanaka et al.
patent: 4851898 (1989-07-01), Asahara
patent: 4916527 (1990-04-01), Matsuo

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